lxd/storage/drivers: Don't force mount for ext4 resize

[MggMuggins]

Work around this kernel bug by not forcing online resize of ext4 volumes.

Reverts #14146

[simondeziel]

https://github.com/canonical/lxd/actions/runs/11002177644/job/30549015426?pr=14151#step:12:20644

 - Project: p1, Instance: c1: Failed to update device "root": Could not grow underlying "ext4" filesystem for "/dev/lxdtest-08C/containers_p1_c1": Failed to run: e2fsck -f /dev/lxdtest-08C/containers_p1_c1: exit status 8 (e2fsck 1.46.5 (30-Dec-2021)
e2fsck: need terminal for interactive repairs)

This is getting interesting. Why does it needs repairing?!

[MggMuggins]

Gonna try with -p (less aggressive than -y) to see if those repairs can be automated. We're eating stdout now since #14130 but I could try and spit that out too if you'd like.

[simondeziel]

Yeah, getting stdout might be handy at some point. As for preen'ing the FS, it seems to be working so far but I really question why repairing is needed. I've yet to manually try it out and see if e2fsck insists on a terminal even in the happy case.

[MggMuggins]

Going to close in favor of #14154; will try to file an issue for the e2fsck stuff later today

[MggMuggins]

I've run this a couple of times with better logging; looks like it's just a leftover mount:

ERROR  [2024-09-25T22:52:24Z] e2fsck                                        err="Failed to run: e2fsck -f -p /dev/lxdtest-kvGy1OUW7-pool6-newName/containers_c12pool6: exit status 8 (e2fsck: Cannot continue, aborting.)" stdout="/dev/lxdtest-kvGy1OUW7-pool6-newName/containers_c12pool6 is mounted.\n"
ERROR  [2024-09-25T22:54:13Z] e2fsck                                        err="Failed to run: e2fsck -f -p /dev/lxdtest-ps2/containers_quota1: exit status 8 (e2fsck: Cannot continue, aborting.)" stdout="/dev/lxdtest-ps2/containers_quota1 is mounted.\n"
ERROR  [2024-09-25T22:54:24Z] e2fsck                                        err="Failed to run: e2fsck -f -p /dev/lxdtest-ps2/containers_quota2: exit status 8 (e2fsck: Cannot continue, aborting.)" stdout="/dev/lxdtest-ps2/containers_quota2 is mounted.\n"
ERROR  [2024-09-25T22:54:34Z] e2fsck                                        err="Failed to run: e2fsck -f -p /dev/lxdtest-ps2/containers_quota3: exit status 8 (e2fsck: Cannot continue, aborting.)" stdout="/dev/lxdtest-ps2/containers_quota3 is mounted.\n"
root size not within quota range