Debian
DebianAlternatives
Each alternative has a priority associated with it. When a link group is in automatic mode, the alternatives pointed to by members of the group will be those which have the highest priority.
update-alternatives --list x-www-browser
update-alternatives --query x-www-browser
update-alternatives --install /usr/bin/x-www-browser x-www-browser /var/lib/flatpak/exports/bin/org.mozilla.firefox 200
update-alternatives --set x-www-browser /var/lib/flatpak/exports/bin/org.mozilla.firefox
- https://wiki.debian.org/DebianAlternatives
- https://manpages.debian.org/stretch/dpkg/update-alternatives.1.en.html
Reset root password
To reset a lost root password on a Debian/Ubuntu machines:
In Grub edit (e) the default entry (“Debian GNU/Linux” or similar) and add init=/bin/bash
at the end of the linux
line, then Ctrl + x to boot, then:
mount -o remount /
passwd
US Keyboard layout for = :
