when I installed debian 12.7 I created a separated /var directory, along other 2 separated directories (names forgotten).
I also use flatpak and this program is installed in this directory. Executing ‘flatpack update’ I discovered this directory is 95% full, meaning I cannot update anything, because /var is 95% full (only 400 MiB free)
Ideas to solve this?
Is there a reason you gave /var it’s own partition? Or is the problem that your entire root file system is full?
As others have said if you have a /var partition, resizing should fix the problem but the other solution would be to migrate the contents back to your main file system partition. Presumably at present there is a symbolic link folder pointing to your /var partition? Copy the /var partition contents into a new folder then boot in to recovery mode and delete the symbolic link and rename the new folder to /var. However presumably you have a good reason for splitting /var out.
If you don’t have a separate partition then the issue may be your root system itself is full and that partition needs resizing if possible or cleaning our to make space.
Finally, Flatpak does also use the /var directories in the home users folders (it uses this for single user installs of software vs system wide installs). It’s possible it’s axtually the home folder/partition that is full and that needs resizing or cleaning out to make space .