To install/update on linux use this command and avoid distribution specific packages (to get the latest version) as per https://calibre-ebook.com/download_linux

sudo -v && wget -nv -O- https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py | sudo python -c "import sys; main=lambda:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main()"

Configuration can be copied from a previous windows installation. Essential files on the linux system are in $HOME/.config/calibre and they are customize.py, global.py, gui.py, tweaks.py and possibly the .json files. Ensure to edit the files and change all path references.

Copied plugin files don't appear to work, but need to be installed separately. This may be due to different versions or due to different install-id in the config file.

Note:

When mounting cifs share and using calibre database on that share, use the 'nobrl' mount option to avoid locking issues and incorrect error messages.

see https://bugs.launchpad.net/calibre/+bug/1760535