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Linux Mastering Development Ubuntu

system setting don’t start at ubuntu 20.04

I try sudo apt-get remove unity-control-center sudo apt autoremove sudo apt-get install unity-control-center and sudo apt-get remove gnome-control-center sudo apt autoremove sudo apt-get install gnome-control-center in terminal but System Settings still won’t open.

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Linux Mastering Development Ubuntu

Broken snap: dbeaver-ce

dbeaver-ce is not launching from the dock, and this is the output in the terminal: dbeaver-ce /snap/dbeaver-ce/93/snap/command-chain/desktop-launch: line 50: /home/opyate/.config/user-dirs.dirs: Permission denied sed: can’t read /home/opyate/.config/user-dirs.dirs: Permission denied /snap/dbeaver-ce/93/snap/command-chain/desktop-launch: line 238: /home/opyate/.config/user-dirs.dirs: Permission denied cp: cannot open ‘/home/opyate/.config/user-dirs.locale’ for reading: Permission denied /snap/dbeaver-ce/93/snap/command-chain/desktop-launch: line 243: /home/opyate/.config/user-dirs.locale: Permission denied realpath: ”: No such file or directory […]

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Linux Mastering Development Ubuntu

All files open in browser

Description All files, no matter their type, and no matter what application I associate with the type, open with my default browser (Firefox), which then asks me to choose an application. This is very annoying. It doesn’t matter if I double-click, right-click and explicitly choose with which application to open the file, or even xdg-open […]

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Linux Mastering Development Ubuntu

How to add protocols to a dvd drive?

I have Ubuntu 20.04 on this computer, and beefed up the dvd drive with a blueray. But the computer’s protocols don’t like it. When I try to open a blueray disk on vlc, I get this error- [![Blueray] I get similar errors on other players as well. 1]1 How do I add a protocol for […]

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Linux Mastering Development Ubuntu

Is checking disc necessary while booting Ubuntu from USB?

I am booting Ubuntu from USB. Initially it checks disk for about five minutes. Is this step necessary? Is there any problem if press ctr + C?

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Linux Mastering Development Ubuntu

How do I remove a startup script from maintenance mode terminal, when I’ve forgotten the name?

I have a multi-boot installation on my computer, 2 Lubuntus and a Win10. After upgrading my GPU, only one of the installations of Lubuntus started having problems. I can see the boot loader, I can see the boot screen, and after that, I am sent into a blackscreen with a cursor. At first, it is […]

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Linux Mastering Development Ubuntu

configure: error: gdal-config not found or not executable. Ubuntu 20.10 & R 3.6.3

I had problems installing gdal in R 3.6.3, showing the message on the title. Using apt-get to install libgal have unsolved dependencies, solved them resulted in a system crash. After resolving the boot crash. Used: sudo aptitude install libgdal-dev Showing: The following actions will resolve these dependencies: Install the following packages: default-libmysqlclient-dev [1.0.5ubuntu2 (groovy)] libmysqlclient-dev […]

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Linux Mastering Development Ubuntu

“Could not enter folder” mounted with sshfs from Kompare

I have a remote folder mounted as sshfs mmatrosov@server: /home/mmatrosov/vm When I try to open a file in Kompare and navigate into this folder, Kompare gives me an error message Could not enter folder /home/mmatrosov/vm However, I can freely browse this folder with Files and other programs. Also, Kompare sees "regular" (ext4) folders and files […]

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Linux Mastering Development Ubuntu

How can I solve “no module named ‘_lzma'”?

I am trying to run the BoltzTraP2 software installed in Ubuntu 20.04.1 LTS but I get this error. Kindly let me know how I can solve this. I have installed pandas and liblzma-dev, still I get the error. ========================================================== you can install pyfftw to get better FFT performance Traceback (most recent call last): File "/home/syl2/.local/bin/btp2", […]

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Linux Mastering Development Ubuntu

How to check Intra Net Speed between two hosts running Ubuntu

I want to check the speed of my connection to our server. I observe that our VPN slows things down and want to quantify the problem so that I can then solve it. I am not looking to measure the connection speed to the internet, but the speed from my client to our server. I […]