| Can't put "/var/lib/dpkg/info" on a new partition with the debian installer Posted: 23 Mar 2021 09:46 AM PDT I put /var/lib/dpkg/info on a new partition and put everything else in "/var" on another noexec partition (suggestion 2 in #21941). Every partition was mounted with the defaults flag. Somehow, the installer for Debian buster failed to install new packages to the hard drive. If I don't make a new partition for /var/lib/dpkg/info, the installer works fine. What went wrong?  |
| Enable lightdm autologin using sed Posted: 23 Mar 2021 09:54 AM PDT I need to edit /etc/lightdm/lightdm.conf using sed inside specific section, uncomment and set value. This section is [Seat:*] and line is #autologin-user= I expect this change:
Before: [LightDM] . . . [Seat:*] . . . #autologin-user= . . .
After: [LightDM] . . . [Seat:*] . . . autologin-user=pi . . .
I've tried this command: sed -i.bak '/^\[Seat:*]/{s/#autologin-user/autologin-user=pi/}' /etc/lightdm/lightdm.conf
But without success. PS: There are more occurrences of #autologin-user, so selecting section [Seat:*] is really important.  |
| Debian 10 installation. Display resolution stuck at single default monitor 720x400 Posted: 23 Mar 2021 09:00 AM PDT Fresh install of Deb 10. ATI RADEON 3000 on board GPU I installed this with a really cheap/small AOC monitor via a VGA connect. I do not know if this had anything to do with my problem. I connected the PC to a TCL ROKU UHD TV via HDMI cable. I logged in and started GNOME. The resolution was like it was on the tiny console I did the install from. When I do xrandr : 720x400 0.00+ only is displayed. I have read, it feels like, every blog in this solar system. Tried all of the suggestions.
I did go to GRUB command mode and listed all display capabilities and they were all in the output. I checked the driver level. Manually added another resolution and attempted to switch to it. It failed with "Max level is 720x400 0.00" I also get the famous "xrandr: Failed to get size of gamma for output default" message. Any assistance would be greatly appreciated. Best regards, Michael:D  |
| What characters are valid in environment variable names Posted: 23 Mar 2021 09:44 AM PDT Which characters may occur in an environment variable name, not considering any shell limitations?  |
| How can I tell which ethernet port is the one connected with an ethernet cable? Posted: 23 Mar 2021 08:51 AM PDT This system's was basically cloned from another system so it has its network properties so the network does not work at all. I connected an ethernet cable into one of the ethernet ports and ran ifconfig. I think the output is giving me the details of the previous system. I can't connect to the internet at all or ping other systems on the same network. I ran $lspci | egrep -i --color 'network|ethernet'
and the output gave me the two ethernet ports I believe 00:1f:6 Ethernet controller: Intel Corporation Device 0e7c 07:00:0 Ethernet controller: Intel Corporation Device 13g7 (rev 02)
so the ethernet ports are detected. How do I determine which port is being connected by the ethernet cable? I'm not sure if virbr0 is actually one of the ethernet ports or if it is from the previous original system.  |
| People already have SSH and SFTP access, any reasons to provide FTP? Posted: 23 Mar 2021 08:34 AM PDT I'm managing a server and users may or may not be in the sudo group. Assume the file permission bits are set properly since the / folder. Users are now using SSH to log into the system, and some of them are using SFTP to transfer files. I guess I understand the difference between SFTP and FTP(s). Since users are expected to use SSH to access the server, are there any reasons to provide FTP(s)? What benefits do I get? Even if I set up FTP(S), are there any reason to disable SFTP?  |
| Fedora 33 KDE shutdown button has no option to reboot the system anymore Posted: 23 Mar 2021 08:16 AM PDT Since Fedora 24 I always upgraded the system via DNF System Upgrade up until Fedora 33. Some time ago I installed a new Fedora 33 from scratch, to clean up the system. This new installation works fine so far, but has one wired quirk, the upgraded old one didn't have. When I configure a shutdown button in KDE, and use only the default option "Leave" the button performs an init 0 (shutting the whole computer down) instead of an reboot (restarting the computer). Is there a way to set the default KDE shutdown button to reboot? The upgraded old Fedora performed a reboot with the same button (and button setting).  |
| What are some useful use-cases for eval in Shell? Posted: 23 Mar 2021 09:02 AM PDT You hear it a lot eval is evil, whether it's in Shell/POSIX world, or in other langs like python etc... But I'm wondering, is it actually useless? or is it there some arcane, non-documented, interesting or just useful use-cases for it? Would prefer if the answer is sh/bash centric, but it's fine if it's about other Shells too. PS: I'm well aware why eval is considered evil.  |
| How to find why a Debian package is no longer in the stable release? Posted: 23 Mar 2021 09:05 AM PDT I often run into the situation in which some tutorial (or similar) that I find online recommends installing a Debian package that is no longer available in the latest stable release. Likewise, sometimes apt install lists "suggested packages" that are no longer available1. Is there a formal record of why a Debian package is no longer available?
1 In fact, at the moment, I am interested in the torbrowser-launcher package, which apt lists among the suggested packages for the tor package, but my question is not specific to it. As I wrote above, this is a recurring situation.  |
| Linux Mint 20.1 will no longer start Posted: 23 Mar 2021 08:57 AM PDT I may have really screwed up. I changed the contents of a file on linux and now virtual box hangs. Here's what I did: In my home directory on linux there is a file .gtkrc-2.0. The file looks something like this: style "xfdesktop-icon-view" { XfdesktopIconView::label-alpha = 0 XfdesktopIconView::selected-label-alpha = 80 XfdesktopIconView::shadow-x-offset = 0 XfdesktopIconView::shadow-y-offset = 1 XfdesktopIconView::selected-shadow-x-offset = 0 XfdesktopIconView::selected-shadow-y-offset = 1 XfdesktopIconView::shadow-color = shade(1.5, @tooltip_bg_color) XfdesktopIconView::selected-shadow-color = shade(1.8, @tooltip_bg_color) XfdesktopIconView::shadow-blur-radius = 2 XfdesktopIconView::cell-spacing = 2 XfdesktopIconView::cell-padding = 6 XfdesktopIconView::cell-text-width-proportion = 1.9 fg[NORMAL] = shade (0.9, @selected_fg_color) fg[ACTIVE] = @selected_fg_color
My actual file only had lines in it with the word shadow. I commented those out and restarted the linux system through vb. The first time I did this the system restarted so that may or may not be the issue. However, on subsequent attempts I am unable to get the linus guest running. Here's a link to my latest vb.log file https://www.dropbox.com/s/caza5qakb1tpe ... 2.log?dl=0 here's the bottom of the log file: 00:01:51.522714 GUI: UISession::sltAdditionsChange: GA state change event came, notifying listeners 00:01:51.522756 GUI: UIMachineLogicNormal::sltCheckForRequestedVisualStateType: Requested-state=0, Machine-state=5 00:01:51.523175 VMMDev: Guest Log: 23:36:26.909310 main vbglR3GuestCtrlDetectPeekGetCancelSupport: Supported (#1) 00:01:51.523350 Guest Control: GUEST_MSG_REPORT_FEATURES: 0x7, 0x8000000000000000 00:01:51.529087 VMMDev: Guest Log: 23:36:26.915258 vminfo Error: Unable to connect to system D-Bus (1/3): Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused 00:01:51.529326 GUI: UISession::sltAdditionsChange: GA state really changed, notifying listeners 00:01:51.529372 GUI: UIMachineViewNormal::adjustGuestScreenSize: Adjust guest-screen size if necessary 00:01:51.529423 GUI: UIMachineViewNormal::adjustGuestScreenSize: Adjust guest-screen size if necessary 00:01:51.529459 GUI: UISession::sltAdditionsChange: GA state change event came, notifying listeners 00:01:51.529483 GUI: UIMachineLogicNormal::sltCheckForRequestedVisualStateType: Requested-state=0, Machine-state=5 00:01:51.558106 VMMDev: Guest Log: vboxsf: g_fHostFeatures=0x8000000f g_fSfFeatures=0x1 g_uSfLastFunction=29 00:01:51.558581 VMMDev: Guest Log: vboxsf: Successfully loaded version 6.1.18 on 5.4.0-67-generic SMP mod_unload modversions (LINUX_VERSION_CODE=0x5045e) 00:01:51.560743 VMMDev: Guest Log: 23:36:26.946913 automount vbsvcAutomounterMountIt: Successfully mounted 'C_DRIVE' on '/mnt/cdrive' 00:01:51.562134 VMMDev: Guest Log: 23:36:26.948314 automount vbsvcAutomounterMountIt: Successfully mounted 'D_DRIVE' on '/mnt/ddrive' 00:01:51.563319 VMMDev: Guest Log: 23:36:26.949499 automount vbsvcAutomounterMountIt: Successfully mounted 'E_DRIVE' on '/mnt/edrive' 00:01:56.528517 VMMDev: Guest Log: 23:36:31.917006 vminfo Error: Unable to connect to system D-Bus (2/3): Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused When I try to start up through virtualbox I get a black screen with the green LM logo in the middle. The machine just hangs there. If I do a reset I get the option to enter advanced options for linux mint 20.1 from there I can go into recovery mode and get to the root in a terminal session when the machine tries to boot I get : failed to load kernel check systemctl systemd-modules-load.service if i try to run any apt commands I get: unable to read cpu table when I look on my shared drives with windows 10 system I just have . and .. for each of the drives
Here's some additional information that I hope is helpful: systemctl --failed dbus.service systemd-modules-load.service dbus.socket systemctl status dbus.service dbus.service - D-Bus System Message Bus Loaded: loaded (/lib/systemd/system/dbus.service; static; vendor preset: enabled Active: failed (Result: exit-code) since Tue 2021-03-23 14:48:31 UTC; 11mim ago TriggeredBy: dbus.socket Docs: man:dbus-daemon(1) process: 620 ExecStart=/usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only (code=exited, staus=1/FAILURE Main Pid: 620 (code=exited, status=1/FAILURE) Mar 23 14:28:31 VB-MINT systemd[1]: Started D-Bus System Message Bus. Mar 23 14:28:31 VB-MINT dbus-daemon[620]: dbus[620]: Failed to start message bus: Failed to open "/usr/share/dbus-1/system.conf": No such file or directory Mar 23 14:28:31 VB-MINT systemd[1]: dbus.service: Main process exited, code=exited, staus=1/FAILURE Mar 23 14:28:31 VB-MINT systemd[1]: dbus.service: Failed with result 'exit-code Mar 23 14:28:32 VB-MINT systemd[1]: dbus.service: Start request repeated too quickly Mar 23 14:28:32 VB-MINT systemd[1]: dbus.service: Failed with result 'exit-code Mar 23 14:28:32 VB-MINT systemd[1]: Failed to start D-Bus System Message systemctl status systemd-modules-load.service systemd-modules-load.service - Load Kernel Modules Loaded: loaded (/lib/systemd/system/systemd-modules-load.service; static; vendor preset: enabled) Active: failed (Result: exit-code) Since Tue 2021-03-23 14:48:29 UTC; 32min ago Docs: man:systemd-modules-load.service(8) man:modules-load.d(5) Process: 547 ExecStart=/lib/systemd/systemd-modules-load (code=exited, status=1/FAILURE) Main PID: 547 (code=exited, status=1/FAILURE) Mar 23 14:28:31 VB-MINT systemd[1]: Starting Load Kernel Modules... Mar 23 14:28:31 VB-MINT systemd-modules-load[547]: Model 'fuse' is built in Mar 23 14:28:31 VB-MINT systemd-modules-load[547]: Failed to insert module 'vmwgfx' : Invalid argument Mar 23 14:28:31 VB-MINT systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE Mar 23 14:28:31 VB-MINT systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'. Mar 23 14:28:31 VB-MINT systemd[1]: Failed to start Load Kernel Modules systemctl status dbus.socket dbus.socket - D-Bus System Message Bus Socket Loaded: loaded (/lib/systemd/system/dbus.socket; static; vendor preset: enabled) Active: failed (Result: service-start-limit-hit) since Tue 2021-03-23 14:48:32 UTC; 48min ago Triggers: dbus.service Listen: /run/dbus/system_bus_socket (Stream) Mar 23 14:28:31 VB-MINT systemd[1]: Listening on D-Bus System Message Bus Socket Mar 23 14:28:31 VB-MINT systemd[1]: dbus.socket: Failed with result 'service-start-limit-hit'.
If there is someway to restore my system that would be great. If not if there is some way to copy my home directory to the windows 10 host that would help alot.  |
| Unable to run `zypper refresh` on SLES 12.5 Posted: 23 Mar 2021 08:48 AM PDT I am trying to install docker on SLES 12.5. I tried to follow the instructions on this SO answer. Initial Attempt # zypper addrepo https://download.opensuse.org/repositories/Virtualization:containers/SLE_12_SP5/Virtualization:containers.repo Adding repository 'Virtualization:containers (SLE_12_SP5)' ...........................................................................................................[done] Repository 'Virtualization:containers (SLE_12_SP5)' successfully added URI : https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/ Enabled : Yes GPG Check : Yes Autorefresh : No Priority : 99 (default priority) Repository priorities are without effect. All enabled repositories share the same priority.
# zypper refresh Repository 'SLES12-SP5-Pool' is up to date. Repository 'SLES12-SP5-Updates' is up to date. Repository 'Update' is up to date. Retrieving repository 'Virtualization:containers (SLE_12_SP5)' metadata -------------------------------------------------------------------------------------------------[-] Download (curl) error for 'https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/repodata/a02bda6c6525d5d550e34e98844bf0e18a66aa1a24282c72a80c4679ef2e121d-primary.xml.gz': Error code: Bad URL Error message: Redirect to protocol "http" not supported or disabled in libcurl Abort, retry, ignore? [a/r/i/...? shows all options] (a): a Retrieving repository 'Virtualization:containers (SLE_12_SP5)' metadata .............................................................................................[error] Repository 'Virtualization:containers (SLE_12_SP5)' is invalid. [Virtualization_containers|https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/] Valid metadata not found at specified URL Please check if the URIs defined for this repository are pointing to a valid repository. Skipping repository 'Virtualization:containers (SLE_12_SP5)' because of the above error. Some of the repositories have not been refreshed because of an error.
Second Attempt I found this question on Unix & Linux with a similar error, so I edited the /etc/zypp/repos.d/Virtualization_containers.repo file as follows: Before: [Virtualization_containers] name=Virtualization:containers (SLE_12_SP5) enabled=1 autorefresh=0 baseurl=https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/ type=rpm-md gpgcheck=1 gpgkey=https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/repodata/repomd.xml.key
After: [Virtualization_containers] name=Virtualization:containers (SLE_12_SP5) enabled=1 autorefresh=0 baseurl=http://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/ type=rpm-md
Then tried again: # zypper refresh Repository 'SLES12-SP5-Pool' is up to date. Repository 'SLES12-SP5-Updates' is up to date. Repository 'Update' is up to date. Retrieving repository 'Virtualization:containers (SLE_12_SP5)' metadata -------------------------------------------------------------------------------------------------[/] Timeout exceeded when accessing 'http://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/repodata/a02bda6c6525d5d550e34e98844bf0e18a66aa1a24282c72a80c4679ef2e121d-primary.xml.gz'. Abort, retry, ignore? [a/r/i] (r): i Autoselecting 'r' after 7 seconds. Retrieving repository 'Virtualization:containers (SLE_12_SP5)' metadata .............................................................................................[error] Repository 'Virtualization:containers (SLE_12_SP5)' is invalid. [Virtualization_containers|http://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/] Valid metadata not found at specified URL Please check if the URIs defined for this repository are pointing to a valid repository. Skipping repository 'Virtualization:containers (SLE_12_SP5)' because of the above error. Some of the repositories have not been refreshed because of an error.
Third Attempt I tried to give up on zypper and use another installation method. I found an RPM file here https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/x86_64/docker-19.03.12_ce-378.39.x86_64.rpm myserver:~/temp # systemctl stop docker myserver:~/temp # docker ps Cannot connect to the Docker daemon. Is the docker daemon running on this host? myserver:~/temp # rpm -ivh docker-19.03.12_ce-378.39.x86_64.rpm error: Failed dependencies: catatonit is needed by docker-19.03.12_ce-378.39.x86_64 containerd-git = 7ad184331fa3e55e52b890ea95e65ba581ae3429 is needed by docker-19.03.12_ce-378.39.x86_64 docker-libnetwork-git = 026aabaa659832804b01754aaadd2c0f420c68b6 is needed by docker-19.03.12_ce-378.39.x86_64 docker-runc-git = dc9208a3303feef5b3839f4323d9beb36df0a9dd is needed by docker-19.03.12_ce-378.39.x86_64 fix_bsc_1057743 is needed by docker-19.03.12_ce-378.39.x86_64 https://download.opensuse.org/repositories/Virtualization:/containers/SLE_12_SP5/x86_64/docker-19.03.12_ce-378.39.x86_64.rpm
Question So how can I install Docker on SLES 12.5? Can I fix Redirect to protocol "http" not supported or disabled in libcurl?  |
| Update Latte Dock v0.9 to v0.10 Posted: 23 Mar 2021 08:26 AM PDT I am starting to use Arch Linux and, I am customizing my KDE Plasma. I've initially installed Latte Dock 0.9 because I thought it was the latest version. Now I need the Latte Dock 0.10 because, with the Latte Dock 0.9, tapplet-latte-sidebar-button breaks. Can anyone help me? I didn't find anything that could help me and, because I already have Latte Dock 0.9 installed, I don't know how to do it. Sorry if it's a simple question or if the solution is simple. I am starting to use Linux as my main operating system and, I don't want to break something. Edit: To install it, I've cloned these repository. Then I've run these two commands. sudo pacman -Syu sudo pacman -S cmake extra-cmake-modules python plasma-framework plasma-desktop
After I run the installation script sh install.sh
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| How can I get the count of specific characters using vim in a file Posted: 23 Mar 2021 09:35 AM PDT My question is similar to this one: How can I count the number of words in a file whilst editing the file in vim But with a different task where I have to count characters with the search function in vim and write them at the of the file. For example, if I have to count how many numeric characters are there, I would need something like this: :%s/[0-9]/{g} and after that a command that counts how many characters I have selected with that search. Edit: I'm trying a method where I first select all the characters that I want to count with /[0-9] and trying to use '<,'> like this: '<,'> !wc -m  |
| Apache 2.4 Upgrade from 2.2 on CentOS Posted: 23 Mar 2021 09:06 AM PDT I am on a CentoS 6.10 server; and I am trying to upgrade the Apache 2.2 to Apache 2.4. I Downloaded the httpd-2.4.46.tar.gz; uncompressed it, executed the ./configure --enable-mods-shared=reallyall --enable-load-all-modules, make, and make install. Started up the service it works perfectly; executed a wget http://localhost. I receive a "It works" file. When I copy over my prior configuration file; I get the following error; when starting up the service. AH00526: Syntax error on line 48 of /usr/local/apache2/conf/_proxy.conf: Invalid command 'SSLEngine', perhaps misspelled or defined by a module not included in the server configuration Line 48 in that _proxy.conf is as follows SSLEngine on
Please note; we installed it on another Web Node; it worked like a charm. I took the Make/make install output between both nodes; and i do see a difference when making the installation? I have tried some different other StackExchange help articles; still nothing. Any direction would help.  |
| Grep number behind path, tab and space in a string Posted: 23 Mar 2021 09:11 AM PDT Given a string s s="B /home/BL/004_010_0100.0 23 0.031"
How can I grep only the number behind the path, tab and space in a string? In the string s above, I'd like to extract the number 23. num=$(echo $s | grep 'B .*\t (\d*)')
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| Cumulative size disk usage with du and tree commands Posted: 23 Mar 2021 09:51 AM PDT I need to show my root / directory file cumulative size with deep level 1 Its looks easy but I can't run which deserve tree command doesn't show cumulative size tree --du -h -L 1 . ├── [ 7] bin -> usr/bin ├── [4.0K] boot ├── [ 21K] desktopfs-pkgs.txt ├── [4.2K] dev ├── [ 12K] etc ├── [4.0K] home ├── [ 7] lib -> usr/lib ├── [ 7] lib64 -> usr/lib ├── [ 16K] lost+found ├── [4.0K] media ├── [4.0K] mnt ├── [4.0K] opt ├── [ 0] proc ├── [4.0K] root ├── [4.8K] rootfs-pkgs.txt ├── [ 800] run ├── [ 7] sbin -> usr/bin ├── [ 19] snap -> /var/lib/snapd/snap ├── [4.0K] srv ├── [ 0] sys ├── [ 520] tmp ├── [4.0K] Untitled Folder ├── [4.0K] usr └── [4.0K] var
Also, du command du -h -d 1 / 8,0K /media du: cannot read directory '/sys/kernel/tracing': Permission denied du: cannot read directory '/sys/kernel/debug': Permission denied du: cannot read directory '/sys/fs/pstore': Permission denied du: cannot read directory '/sys/fs/bpf': Permission denied 0 /sys 166G /mnt du: cannot read directory '/run/udisks2': Permission denied du: cannot read directory '/run/wpa_supplicant': Permission denied du: cannot read directory '/run/user/1000/systemd/inaccessible/dir': Permission denied du: cannot read directory '/run/svnserve': Permission denied du: cannot read directory '/run/sudo': Permission denied du: cannot read directory '/run/lightdm': Permission denied du: cannot read directory '/run/lock/lvm': Permission denied du: cannot read directory '/run/systemd/unit-root': Permission denied du: cannot read directory '/run/systemd/inaccessible/dir': Permission denied 1,6M /run du: cannot read directory '/home/max/.cache/yay/wine-stable/pkg': Permission denied du: cannot read directory '/home/max/.cache/yay/gnuradio-git/pkg': Permission denied du: cannot read directory '/home/max/.cache/yay/pamac-classic/pkg': Permission denied du: cannot read directory '/home/max/.cache/yay/wine-stable-next/pkg': Permission denied du: cannot read directory '/home/max/.cache/yay/pamac-aur/pkg': Permission denied du: cannot read directory '/home/max/.cache/paru/clone/qm-dfu-util-git/pkg': Permission denied du: cannot read directory '/home/lost+found': Permission denied 146G /home . . . Goes so on
I need only 1 deep level but du -h -d 1 / command shows permission denies. How can I ignore them for the cleanest view I tried to give root permission but shows minor errors sudo du -h -d 1 / 8,0K /media 0 /sys 166G /mnt du: cannot access '/run/user/1000/gvfs': Permission denied 1,6M /run 146G /home du: cannot access '/proc/12363/task/12363/fd/4': No such file or directory du: cannot access '/proc/12363/task/12363/fdinfo/4': No such file or directory du: cannot access '/proc/12363/fd/3': No such file or directory du: cannot access '/proc/12363/fdinfo/3': No such file or directory 0 /proc 19M /etc 16K /lost+found 0 /dev 49G /usr 41G /var 4,0K /Untitled Folder 9,1M /srv 2,6G /opt 1,8M /root 51M /tmp 98M /boot 403G /
I glanced many example on web those commands looks great but mine terminal which Shell: bash 5.1.0 under default Manjaro looks a little bit away from perfect  |
| How to debug: ssh_exchange_identification: Connection closed by remote host Posted: 23 Mar 2021 09:45 AM PDT SSH by private IP is fine I'm able to connect to a server through SSH by its private IP address: C:\Users\m3>ssh -vvvvA uconn@192.168.1.11 OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5 debug3: Failed to open file:C:/Users/m3/.ssh/config error:2 debug3: Failed to open file:C:/ProgramData/ssh/ssh_config error:2 debug2: resolve_canonicalize: hostname 192.168.1.11 is address debug2: ssh_connect_direct: needpriv 0 debug1: Connecting to 192.168.1.11 [192.168.1.11] port 22. debug1: Connection established. debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_rsa type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_rsa-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_dsa type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_dsa-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ecdsa type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ecdsa-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519 error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ed25519 type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ed25519-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_xmss type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_for_Windows_7.7 debug1: Remote protocol version 2.0, remote software version OpenSSH_7.2p2 Ubuntu-4ubuntu2.10 debug1: match: OpenSSH_7.2p2 Ubuntu-4ubuntu2.10 pat OpenSSH* compat 0x04000000 debug2: fd 3 setting O_NONBLOCK debug1: Authenticating to 192.168.1.11:22 as 'uconn' debug3: hostkeys_foreach: reading file "C:\\Users\\m3/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file C:\\Users\\m3/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys from 192.168.1.11 debug3: Failed to open file:C:/Users/m3/.ssh/known_hosts2 error:2 debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts error:2 debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts2 error:2 debug3: order_hostkeyalgs: prefer hostkeyalgs: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521 debug3: send packet: type 20 debug1: SSH2_MSG_KEXINIT sent debug3: receive packet: type 20 debug1: SSH2_MSG_KEXINIT received debug2: local client KEXINIT proposal debug2: KEX algorithms: curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha256,diffie-hellman-group14-sha1,ext-info-c debug2: host key algorithms: ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519-cert-v01@openssh.com,ssh-rsa-cert-v01@openssh.com,ssh-ed25519,rsa-sha2-512,rsa-sha2-256,ssh-rsa debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none debug2: compression stoc: none debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug2: peer server KEXINIT proposal debug2: KEX algorithms: curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha1 debug2: host key algorithms: ssh-rsa,rsa-sha2-512,rsa-sha2-256,ecdsa-sha2-nistp256,ssh-ed25519 debug2: ciphers ctos: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com debug2: ciphers stoc: chacha20-poly1305@openssh.com,aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com debug2: MACs ctos: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: MACs stoc: umac-64-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,hmac-sha1-etm@openssh.com,umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-sha1 debug2: compression ctos: none,zlib@openssh.com debug2: compression stoc: none,zlib@openssh.com debug2: languages ctos: debug2: languages stoc: debug2: first_kex_follows 0 debug2: reserved 0 debug1: kex: algorithm: curve25519-sha256@libssh.org debug1: kex: host key algorithm: ecdsa-sha2-nistp256 debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none debug3: send packet: type 30 debug1: expecting SSH2_MSG_KEX_ECDH_REPLY debug3: receive packet: type 31 debug1: Server host key: ecdsa-sha2-nistp256 SHA256:eyPiBvKLgJOk1xJc0k6cx9UnwIXbUUaXu9pPHTKt5Rg debug3: hostkeys_foreach: reading file "C:\\Users\\m3/.ssh/known_hosts" debug3: record_hostkey: found key type ECDSA in file C:\\Users\\m3/.ssh/known_hosts:1 debug3: load_hostkeys: loaded 1 keys from 192.168.1.11 debug3: Failed to open file:C:/Users/m3/.ssh/known_hosts2 error:2 debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts error:2 debug3: Failed to open file:C:/ProgramData/ssh/ssh_known_hosts2 error:2 debug1: Host '192.168.1.11' is known and matches the ECDSA host key. debug1: Found key in C:\\Users\\m3/.ssh/known_hosts:1 debug3: send packet: type 21 debug2: set_newkeys: mode 1 debug1: rekey after 134217728 blocks debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug3: receive packet: type 21 debug1: SSH2_MSG_NEWKEYS received debug2: set_newkeys: mode 0 debug1: rekey after 134217728 blocks debug3: unable to connect to pipe \\\\.\\pipe\\openssh-ssh-agent, error: 2 debug1: pubkey_prepare: ssh_get_authentication_socket: No such file or directory debug2: key: C:\\Users\\m3/.ssh/id_rsa (0000000000000000) debug2: key: C:\\Users\\m3/.ssh/id_dsa (0000000000000000) debug2: key: C:\\Users\\m3/.ssh/id_ecdsa (0000000000000000) debug2: key: C:\\Users\\m3/.ssh/id_ed25519 (0000000000000000) debug2: key: C:\\Users\\m3/.ssh/id_xmss (0000000000000000) debug3: send packet: type 5 debug3: receive packet: type 7 debug1: SSH2_MSG_EXT_INFO received debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512> debug3: receive packet: type 6 debug2: service_accept: ssh-userauth debug1: SSH2_MSG_SERVICE_ACCEPT received debug3: send packet: type 50 debug3: receive packet: type 51 debug1: Authentications that can continue: publickey,password debug3: start over, passed a different list publickey,password debug3: preferred publickey,keyboard-interactive,password debug3: authmethod_lookup publickey debug3: remaining preferred: keyboard-interactive,password debug3: authmethod_is_enabled publickey debug1: Next authentication method: publickey debug1: Trying private key: C:\\Users\\m3/.ssh/id_rsa debug3: no such identity: C:\\Users\\m3/.ssh/id_rsa: No such file or directory debug1: Trying private key: C:\\Users\\m3/.ssh/id_dsa debug3: no such identity: C:\\Users\\m3/.ssh/id_dsa: No such file or directory debug1: Trying private key: C:\\Users\\m3/.ssh/id_ecdsa debug3: no such identity: C:\\Users\\m3/.ssh/id_ecdsa: No such file or directory debug1: Trying private key: C:\\Users\\m3/.ssh/id_ed25519 debug3: no such identity: C:\\Users\\m3/.ssh/id_ed25519: No such file or directory debug1: Trying private key: C:\\Users\\m3/.ssh/id_xmss debug3: no such identity: C:\\Users\\m3/.ssh/id_xmss: No such file or directory debug2: we did not send a packet, disable method debug3: authmethod_lookup password debug3: remaining preferred: ,password debug3: authmethod_is_enabled password debug1: Next authentication method: password debug3: failed to open file:C:/dev/tty error:3 debug1: read_passphrase: can't open /dev/tty: No such file or directory uconn@192.168.1.11's password: debug3: send packet: type 50 debug2: we sent a password packet, wait for reply debug3: receive packet: type 52 debug1: Authentication succeeded (password). Authenticated to 192.168.1.11 ([192.168.1.11]:22). debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug3: send packet: type 90 debug1: Requesting no-more-sessions@openssh.com debug3: send packet: type 80 debug1: Entering interactive session. debug1: pledge: network debug1: console supports the ansi parsing debug3: Successfully set console output code page from:437 to 65001 debug3: Successfully set console input code page from:437 to 65001 debug3: receive packet: type 80 debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0 debug3: receive packet: type 91 debug2: channel_input_open_confirmation: channel 0: callback start debug3: unable to connect to pipe \\\\.\\pipe\\openssh-ssh-agent, error: 2 debug1: ssh_get_authentication_socket: No such file or directory debug2: fd 3 setting TCP_NODELAY debug2: client_session2_setup: id 0 debug2: channel 0: request pty-req confirm 1 debug3: send packet: type 98 debug2: channel 0: request shell confirm 1 debug3: send packet: type 98 debug2: channel_input_open_confirmation: channel 0: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug3: receive packet: type 99 debug2: channel_input_status_confirm: type 99 id 0 debug2: PTY allocation request accepted on channel 0 debug2: channel 0: rcvd adjust 2097152 debug3: receive packet: type 99 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 Welcome to Ubuntu 16.04.7 LTS (GNU/Linux 4.4.0-206-generic i686) * Documentation: https://help.ubuntu.com * Management: https://landscape.canonical.com * Support: https://ubuntu.com/advantage 0 packages can be updated. 0 of these updates are security updates. New release '18.04.5 LTS' available. Run 'do-release-upgrade' to upgrade to it. Last login: Tue Mar 23 14:22:05 2021 from 192.168.1.52
SSH by public IP is bad However, when using its public IP address, I run into an error: ssh_exchange_identification: Connection closed by remote host C:\Users\m3>ssh -vvvvA uconn@11.111.11.111 OpenSSH_for_Windows_7.7p1, LibreSSL 2.6.5 debug3: Failed to open file:C:/Users/m3/.ssh/config error:2 debug3: Failed to open file:C:/ProgramData/ssh/ssh_config error:2 debug2: resolve_canonicalize: hostname 11.111.11.111 is address debug2: ssh_connect_direct: needpriv 0 debug1: Connecting to 11.111.11.111 [11.111.11.111] port 22. debug1: Connection established. debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_rsa type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_rsa-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_rsa-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_dsa type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_dsa-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_dsa-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ecdsa type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ecdsa-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ecdsa-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519 error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ed25519 type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_ed25519-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_ed25519-cert type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_xmss type -1 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss-cert error:2 debug3: Failed to open file:C:/Users/m3/.ssh/id_xmss-cert.pub error:2 debug1: key_load_public: No such file or directory debug1: identity file C:\\Users\\m3/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_for_Windows_7.7 ssh_exchange_identification: Connection closed by remote host
How to debug What could be the cause? How can I debug the issue? Router port forwarding The server has the private IP address. But there is a router, with public IP address, which forwards the SSH 22 port to the private IP address. 
sshd log
Suggested here, I used this command on server to log sshd output: $ tail -f -n 500 /var/log/auth.log | grep 'sshd'
When I run ssh uconn@192.168.1.11 on client I get the following log: Mar 23 17:26:10 server-homeshine sshd[1355]: Accepted password for uconn from 192.168.1.52 port 53107 ssh2 Mar 23 17:26:10 server-homeshine sshd[1355]: pam_unix(sshd:session): session opened for user uconn by (uid=0)
But when I run ssh uconn@11.111.11.111 on client, no log is displayed whatsoever. I think it is implied that the router is not forwarding the 22 port when a public IP address is used. Not sure why. SSHD config Server sshd config is: uconn@server-homeshine:/etc/ssh$ cat sshd_config # Package generated configuration file # See the sshd_config(5) manpage for details # What ports, IPs and protocols we listen for Port 22 # Use these options to restrict which interfaces/protocols sshd will bind to ListenAddress :: ListenAddress 0.0.0.0 Protocol 2 # HostKeys for protocol version 2 HostKey /etc/ssh/ssh_host_rsa_key HostKey /etc/ssh/ssh_host_dsa_key HostKey /etc/ssh/ssh_host_ecdsa_key HostKey /etc/ssh/ssh_host_ed25519_key #Privilege Separation is turned on for security UsePrivilegeSeparation yes # Lifetime and size of ephemeral version 1 server key KeyRegenerationInterval 3600 ServerKeyBits 1024 # Logging SyslogFacility AUTH LogLevel INFO # Authentication: LoginGraceTime 120 PermitRootLogin prohibit-password StrictModes yes RSAAuthentication yes PubkeyAuthentication yes #AuthorizedKeysFile %h/.ssh/authorized_keys # Don't read the user's ~/.rhosts and ~/.shosts files IgnoreRhosts yes # For this to work you will also need host keys in /etc/ssh_known_hosts RhostsRSAAuthentication no # similar for protocol version 2 HostbasedAuthentication no # Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication #IgnoreUserKnownHosts yes # To enable empty passwords, change to yes (NOT RECOMMENDED) PermitEmptyPasswords no # Change to yes to enable challenge-response passwords (beware issues with # some PAM modules and threads) ChallengeResponseAuthentication no # Change to no to disable tunnelled clear text passwords #PasswordAuthentication yes # Kerberos options #KerberosAuthentication no #KerberosGetAFSToken no #KerberosOrLocalPasswd yes #KerberosTicketCleanup yes # GSSAPI options #GSSAPIAuthentication no #GSSAPICleanupCredentials yes X11Forwarding yes X11DisplayOffset 10 PrintMotd no PrintLastLog yes TCPKeepAlive yes #UseLogin no #MaxStartups 10:30:60 #Banner /etc/issue.net # Allow client to pass locale environment variables AcceptEnv LANG LC_* Subsystem sftp /usr/lib/openssh/sftp-server # Set this to 'yes' to enable PAM authentication, account processing, # and session processing. If this is enabled, PAM authentication will # be allowed through the ChallengeResponseAuthentication and # PasswordAuthentication. Depending on your PAM configuration, # PAM authentication via ChallengeResponseAuthentication may bypass # the setting of "PermitRootLogin without-password". # If you just want the PAM account and session checks to run without # PAM authentication, then enable this but set PasswordAuthentication # and ChallengeResponseAuthentication to 'no'. UsePAM yes
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| double quote inside variable in Sed Posted: 23 Mar 2021 08:09 AM PDT Update Thanks @steeldriver for the answerd, the problem doesn't the double quote is the / only i needeed remplace for | Currently I have some problems with the sed command, I try to replace a string inside a file, the problem is the replace contains a double quote. The variable contain the value of a file: the variable text have this value <string name="app_mod_app_crowdin_1">crowdin one es</string>
The problem is when execute the command sed sed -i .bak -e "Ns/.*/$text/" results.txt
error sed: 1: "1s/.*/<string name="app ...": bad flag in substitute command: 's'
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| How to map compose key to insert via setxkbmap? Posted: 23 Mar 2021 08:13 AM PDT I'm using US (non-international) layout. One way of typing üäöß is setting a compose key via: setxkbmap -layout us -option compose:ralt
Unfortunately, this removes the normal "alt" functionality from right alt. 1- I figured insert key is useless in modern editors. How to map the compose key to it? The list of available options does only include few keys:
grep "compose:" /usr/share/X11/xkb/rules/base.lst compose:lwin Left Win compose:lwin-altgr 3rd level of Left Win compose:rwin Right Win compose:rwin-altgr 3rd level of Right Win compose:menu Menu compose:menu-altgr 3rd level of Menu compose:lctrl Left Ctrl compose:lctrl-altgr 3rd level of Left Ctrl compose:rctrl Right Ctrl compose:rctrl-altgr 3rd level of Right Ctrl compose:caps Caps Lock compose:caps-altgr 3rd level of Caps Lock compose:102 <Less/Greater> compose:102-altgr 3rd level of <Less/Greater> compose:paus Pause compose:prsc PrtSc compose:sclk Scroll Lock
2- Is there a way to retain the "alt" functionality when it is mapped to compose? 3- Is there a way to make right_alt, as AltGr without changing the keyboard layout to international?  |
| Moving from dual-boot (Windows10 / Pop_OS) to single (just Pop); Q's about my EFI setup: 2 EFI partitions? Posted: 23 Mar 2021 09:40 AM PDT Last July, as a complete Linux noob, I bought a refurbished Dell e7470 with Windows 10 pro pre-installed. I followed instructions in this video (cued to disk partition steps) to install Pop_OS 20.04 to dual-boot with Windows 10: Pop!_OS 19.10 - Setting up a Dual Boot with Windows 10. It went well. Now I am thinking about removing Windows, and I am looking at my disk partitions to see what can be removed. Here is screenshot from GNOME Disks while running Pop: 
I do not understand why the video had me create a new EFI partition (sda5) instead of using the ESP (sda1) that was pre-installed with Windows. I am wondering if that may cause problems, but, more importantly, whether I can use Disks to remove the Windows OS (sda3) as well as the ESP (sda1), recovery partition (sda4) and "Microsoft Reserved" (sda2). I do not want to do something wrong and end up with an un-bootable computer. In case it is helpful, here is the output from efibootmgr: steve@pop-os:~$ sudo efibootmgr BootCurrent: 0003 Timeout: 2 seconds BootOrder: 0003,0000,0001,0004 Boot0000* Windows Boot Manager Boot0001* UEFI: SK hynix SC311 SATA 512GB, Partition 1 Boot0002* Pop!_OS 20.04 LTS Boot0003* Pop!_OS 20.04 LTS Boot0004* Linux Firmware Updater
Boot0000 and Boot0001 seem to be the same -- Partition 1, as are Boot0002 and Boot0003 (partition 5).
I would like to know: - Is this 2-EFI-partition setup acceptable?
- How would I safely (and as completely as possible) remove Windows 10?
- Will my system be bootable without ESP, ie, will it use Partition 5 which says it mounts at
/boot/efi?  |
| How to backup and restore Dolphin toolbar settings? Posted: 23 Mar 2021 09:38 AM PDT After installing Dolphin I spend a lot of time customizing it, something which is normal in Plasma. But can we save these detailed changes for future use? I am interested in backing up as many settings as possible, but I will ask here more simply about the most obvious: the toolbar buttons. 
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| Poor CPU Frequency on HP Laptop running Kubuntu Posted: 23 Mar 2021 08:51 AM PDT After using Windows my hole life, i wanted to try a new operating system. I settled on Kubuntu since I liked the design and the easy usability of Ubuntu from a newbie perspective. While using it for browsing I haven't noticed any problems. However when I try to load some CPU intensive tasks I can feel a significant performance hit compared to windows. But first of all my configuration: I'm running a HP Probook 470 G5 with a Intel i7 8550u which should be capable of 1.8GHz on all cores and 3.7GHz burst. However when I load the CPU (e.g a stresstest) it will only run at 1.2GHz (output from i7z)
As you can also see in the picture the CPU isn't thermal throttling.
As soon as I reduce the load the clockspeeds return to "normal"
I also issued sudo cpupower frequency-set -g performance to change the CPU profile to performance. This didn't show any difference in clock speed under load.
Also note that I'm running all test with plugged in power cord. Furthermore no advanced power manager should be running, but you can prove me wrong ;) If you need any more information I will add them as soon as possible.
I assume it has something to do with the general power management of the system, but I can be wrong. Hopefully we can find a solution. Otherwise I will need to change back to windows ;( The Kernel Version is 5.8.0-44-generic Edit: I noticed that the temps spike (at least s-tui show that) on the CPU die itself, then the CPU throttles and never recovers.
Edit: Turning the CPU frequency down to 2GHz result in a way longer CPU burst, but only at 2 GHz. This may indicate that it's in fact a thermal issue. However I would consider 60°C as more than adequate cooling.  |
| Backlight control not working on Lenovo IdeaPad Gaming 3 with Renoir / AMDGPU Posted: 23 Mar 2021 08:43 AM PDT The brightness (LCD backlight) controls on a Lenovo IdeaPad Gaming 3 (15ARH05, LCD display, AMD Renoir CPU Ryzen 5 4600H, discrete NVIDIA GeForce 1650 Ti Mobile) are not working: Fn keys show the brightness slider on the display moving./sys/class/backlight/amdgpu_bl0/brightness changes accordingly from 0 to 255.- The display does not show any brightness change.
- Manually writing to
brightness does not change the display's brightness either. /sys/class/backlight/amdgpu_bl0/actual_brightness stays at 311. I figure this indicates a problem with the amdgpu driver.- The display seems to stay at full brightness always.
Adjustments work fine on Windows 10. The laptop is running: - Kali Linux Rolling
linux-image-5.8.0-kali[23]-amd64 (based on 5.8.14) and custom-built kernels 5.9, 5.9.1 and 5.10-rc1, mostly based off the Kali config- X with
amdgpu drivers, discrete graphics unused (proprietary NVIDIA drivers loaded and unloaded for testing). I have tried booting with various acpi_backlight kernel options, which lead to various backlights being available in /sys/class/backlight/*/brightness: acpi_backlight=video: acpi_video0 acpi_video1 amdgpu_bl0acpi_backlight=vendor: amdgpu_bl0 ideapadacpi_backlight=native: amdgpu_bl0acpi_backlight=none: amdgpu_bl0 Other things that did not work: acpi_osi=Linux (no change)acpi_osi= (hangs at boot)- BIOS update (no other version available)
- moving
/lib/firmware/amdgpu/renoir_dmcu.bin away - patching
amdgpu_dm.c I am aware that there has been a number of updates related to backlights for AMDGPUs, like general support and fixes in kernel 5.7.x and updates to the scaling of brightness values >255 in 5.9, but so far this seems not to have helped my case (or possibly, broke more things). I am not looking for: - software alternatives
- adjusting the gamma values
- using discrete graphics (if it can be avoided)
What else can I do or look into to gain control of the backlight? I came across this comment and this bug report, which seem to suggest that some kernel fixes may have broken other things. What would be the best place to report that?  |
| How to do ldapsearch using TLS1.2 from linux Posted: 23 Mar 2021 09:39 AM PDT I am trying to establish a connection to an AD/ENT group using ldapsearch. i am unable to connect and getting below error.  |
| Custom EDID for specfic physical monitor, not output Posted: 23 Mar 2021 08:40 AM PDT I have a setup where I connect to two different displays depending on where I am. I would like to use a mode which one of the monitors doesn't allow, but that won't be loaded when any other display is connected. To be more concrete, the I would like to overclock the external display at home to 120hz, but not overclock a different display at work that I connect to the same HDMI port. Is this possible using nvidia? I can't seem to be able to override EDID with xrandr, at the same time using the EDID settings by default.  |
| Use desktop icons in Debian 10 Posted: 23 Mar 2021 08:41 AM PDT Debian 10 (Buster) uses GNOME 3.30, which again can use icons on the desktop. To achieve this, I understand that one needs to make a setting that GNOME uses Nautilus to manage the desktop. I searched in dconf-editor, Optimierungen and Einstellungen (no idea what they're called in English), bus was unable to find such a setting. Where can I find this?  |
| I am getting an error while doing SFTP Posted: 23 Mar 2021 09:40 AM PDT I am trying to send a file using SFTP. But getting below error while using it.  |
| keyserver receive failed (on every keyserver available) Posted: 23 Mar 2021 09:19 AM PDT I recently installed Ubuntu 17.04 and I'm not able to add any ppa.
I tried to manually add keys using different keyservers but on every attempt I'm getting keyserver received error: $ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0F164EEB
Error Received: Executing: /tmp/apt-key-gpghome.qm2WNA0lTK/gpg.1.sh --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 0F164EEB gpg: keyserver receive failed: No keyserver available $ sudo apt-key adv --keyserver keys.gnupg.net --recv-keys 0F164EEB
Error Received: Executing: /tmp/apt-key-gpghome.O681PzEx7r/gpg.1.sh --keyserver keys.gnupg.net --recv-keys 0F164EEB gpg: keyserver receive failed: Connection refused
It is the same case with other keys. I'm not able to add any PPA.  |
| Realtek 8723be wireless support, PC-BSD Posted: 23 Mar 2021 09:06 AM PDT I have an HP 455 Probook with AMD10-7300 processor and Realtek 8723be wireless card. I would like to install PC-BSD. Is there any hope of wireless working? I wish there was a live disk I could use to test before installing.  |
| How to find the installation path for a software under linux? Posted: 23 Mar 2021 08:53 AM PDT Under linux, I launch a software by typing, e.g., fluidplot. How can I find the installation path for this software?  |
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