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I recently bought a new MiniPC which now substitutes my old desktop. I immediately wiped out the preinstalled Windows with Linux Mint Cinnamon. Everything is fine now but when I view HD SAT channels I get intermittently annoying artefacts. So I started to debug the issue and detected following tools which helped me to find the root cause for this issue. 

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I own a Brother MFCL2710DN and wasn't able to scan when the printer is connected via USB. The official brother packages for the printer and scanner were installed. FInally the this page helped me to find the root cause and get rid of the error.

 

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I just became aware github decided to use main as the default branch instead of master for any new created repositories. That's why I decided to rename all my default branches from master to main on github.

I also had to update my local clones to use main instead of master and wrote a tiny script to achieve this. Just download this script and execute it in the cloned directory.

 

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I installed Mint Cinnamon Wilma (22.0) a couple of weeks ago from scratch on my Lenovo Ideapad3 and replaced the presinstalled Windows lite.

Later on I upgraded to Xia (22.1) with mintupgrade. Everything worked fine until today. I used sudo apt-get update; sudo apt-get upgradeto install latest updates. That's what I do all the time when I want to update my Linux systems. Everything worked fine so far but when I rebooted the system I didn't get a working desktop any more. The background wallpaper was missing and there was no menu available and CTRL ALT T didn't work either to open a console window to inspect the system. But with the context menu on the desktop I was able to open a console. Finally I found out how to fix the issue:

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I recently wanted to install Linux Mint 21.3 Cinnamon on my Lenovo Ideapad 3 and got this error message when I started the Mint installation image. Fortunately I found a thread which explained how to get rid of this message: Linux Mint Forums Just rename grubx64.efi to mmx64.efi on the second partiion of the flash drive and then the Mint installation image boots successfully.

Steps to execute:

sudo kpartx -av linuxmint-22-cinnamon-64bit.iso
sudo mount /dev/mapper/loop0p2 /mnt
sudo mv /mnt/EFI/boot/grubx64.efi /mnt/EFI/boot/mmx64.efi
sudo umount /mnt
sudo kpartx -d linuxmint-22-cinnamon-64bit.iso

 

If you go with Mint 22 the rename is no longer required and the Mint installation flash drive boots without any issues.

 

I also found another page with some nice hints when you use Linux on your Ideapad 3. Inparticular there is something you should do to prevent the battery drains quite quickly even though the device was switched off.

See also this page (in German) how to enable hibernation in the power settings menu.

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People use mobile phones to take photos very quickly and often publish them online. This overlooks the fact that mobile phones store sensitive information in the photos which can then be read by anyone. The following article describes how to remove this sensitive information before publishing it on the Internet.

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Some time ago somebody told me about 'screen' in an irc chat. He just started to use screen and enjoyed the power of this command and wanted to share this experience with me. I now use this tool very often when I work on a remote system and other people should be able to follow the command I entered and which results I get. This was in particular useful when people asked for help because they had issues with Linux and they allowed me to access their system. That way they easily were able to follow all the activities I executed on their system. But it's also for other tasks very helpful and I now use it quite often.
I just checked the man page of screen and detected there are much more features available. I summarize the features on the following pages and list useful keyboard shortcuts.

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It's not convenient to mount remote nfs disks just before using them from time to time. Automounter in Linux solves this issue. Just change into a subdirectory and the remote filesystem will be mounted by magic. Unfortunately there is one drawback: Th directory on the client will be created if you enter the directory by specifying it's name. Therfore you cannot use TAB expansion in a commandline. It's even not possible to open this directory in a GUI. But there is a solutiona available: Symbolic links:
 
Following pages describe in detail how to configure automount and it's very convenient to connect to remote nfs disks.

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From time to time there exists a new release of Linux distributions. In order to upgrade you install the new release in parallel to the old one and migrate the user data and system configurations to the new release. Unfortunately you installed software packages in the old release manually. Because they are not standard they are not installed in the new release installation. In general you now have two types of additional software: Software which you like and want to use in the new release also and software which you installed for testing or evaluation puposes only. The distributions offer ways to install all missing software on the new distribution. But it doesn't allow to filter and to exclude test and evaluation packages.

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If you want to install Windows on a system which runs a Linux or you want to install a Linux on a box which runs Windows you have to be carefull. Otherwise you may not be able to start Windows or Linux any more. The next few pages contain instructions which you should follow in order to be able to boot both operating systems and which steps to execute if you want to delete one of the operating systems later on.

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SSDs are available for some time now. I had to replace my good old desktop with a newer one because the motherboard started to fail intermittently. I decided to include a 120GB SSD in my new system and spent some time to find out what I have to do in order to increase the lifetime of my SSD. SSDs deliver data very fast on read. On write it takes longer and unfortunately the number of writes is limited. That's why the number or writes to the SSD should be reduced as far as it is possible. On the following pages I describe in detail which changes I did on my Linux Mint 13 and they should also apply on other Linux distributions.

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Some time ago I liked to play Little Big Adventure (LBA und LBA2) on DOS: It's a nice and amusing game.  Recently I detected both CDs in my shelf and thought it would be great to play these games again.

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LVM (Logical volume manager) is a software component, which aggregates disks and/or partitions as a physical partition (PV) in a volume group (VG) and allows to create on the fly logical volumes (Partitions) (LV) and to resize them on the fly.  Linux, Aix, OS2, Solarix, FreeBSD and other support LVM. Windows2000 and above has a similar concept but is not compatible with LVM. Linux distros like Debian, Mandrake, Mint, Ubuntu, Redhat, Slackware und openSuSE allow to install Linux on LVM managed disks but unfortunately per default there will be no LVM be used. Following pages describe in detail the capabilities and benefits of LVM and why every Linux user should also use LVM on his system.

  1. Installing the grub customizer on Mint 17
  2. Temporarily prevent activation of the screensaver
  3. Why is a RAID no backup?
  4. How to create with little effort a Youtube Video of a computerscreen ?
  5. Create a screen demo as animated gif on Linux
  6. zenity: Gtk-WARNING **: cannot open display or Failed to connect to Mir: Failed to connect to server socket: No such file or directory
  7. Textprocessing on the commandline
  8. 20 Command Line Tools to Monitor Linux Performance
  9. How to calculate the maximum MTU?
  10. Mount ftp server as a local disk
  11. Quick commandline navigation with shortcuts on Linux
  12. Installation of Mint13 in an existing lvm partition
  13. Useful links for regular expressions
  14. Why doesn't the community like multipostings
  15. Offer Linux distributions with PXE in your LAN
  16. Which Grub version is installed on which partition?
  17. chroot reference
  18. How to use use RS232 as COM1 in wine with a USB converter
  19. Nice Linux Rescue System on USB Stick
  20. Grub simplified for newbees
  21. Mouse hangs temporarily
  22. Useful fan control tool for thinkpads
  23. Mount a AVM USB stick on Linux
  24. How to increase all fonts in Mint11
  25. Temporarily prevent activation of the screensaver
  26. Maintain a mailinglist on a local home system
  27. How to migrate mailman to another system
  28. How to configure a video player for a dvb-s card on Mint 10
  29. Useful command parameters for nmap
  30. How to copy a LiveCD or DVD on an USB stick?