Upgrading Linux Mint to 21.3 Virginia from 21.2 Victoria

Описание: Linux Mint is of course AWESOME, but just remember to replace "$VERSION_CODENAME" with "$UBUNTU_CODENAME" when installing packages.

Commands in video:
echo $(. /etc/os-release && echo "$VERSION_CODENAME")

echo $(. /etc/os-release; echo "$UBUNTU_CODENAME")