Hi all, we have a backup server that we've been unable to update && upgrade due to disk space limitations on the / drive. Unfortunately, this can't be expanded but I have found that the var is taking up 11GB with the following files being culprits:
sudo du -aBM 2>/dev/null | sort -nr | head -n 10
11068M .
7849M ./lib
7569M ./lib/docker
7481M ./lib/docker/overlay2
2765M ./log
1898M ./log/journal/67a88ed4990c11efba12a54b6ab7f314
1898M ./log/journal
1584M ./lib/docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175
928M ./lib/docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/merged
657M ./lib/docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/diff
running this from within lib yields
7569M ./docker
7481M ./docker/overlay2
1584M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175
928M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/merged
657M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/diff
599M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/merged/var
549M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/merged/var/log
548M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/merged/var/log/btmp
548M ./docker/overlay2/a4a298d2f50bf68a3dff32f8f71219bbf8f97bbd5ec5b9240dc0305a389a9175/diff/var/log/btmp
Are any of these locations safe to "clean"? I should be able to recover enough space from logs to perform an upgrade but apprehensive as this would only be a short term measure.
