Is it possible to do a filesystem check of a disk used as root device of a running VM?
A VM reports errors and after reboot it got stuck, so that I needed to repair the filesystem with `fsck`. After 1 hour there have been errors again but I could run `fsck`inside the VM and do a reboot.
Now want to do periodical filesystem check to avoid the machine out of order again.
Running `fsck`now inside VM of course reports problems because of mounted disks:
```
fsck from util-linux 2.38.1
e2fsck 1.47.0 (5-Feb-2023)
/dev/mapper/yxxx--vg-root is mounted.
e2fsck: Cannot continue, aborting.
```
This, is it possible to do a filesystem check (and repair) from the hypervisor?
A VM reports errors and after reboot it got stuck, so that I needed to repair the filesystem with `fsck`. After 1 hour there have been errors again but I could run `fsck`inside the VM and do a reboot.
Now want to do periodical filesystem check to avoid the machine out of order again.
Running `fsck`now inside VM of course reports problems because of mounted disks:
```
fsck from util-linux 2.38.1
e2fsck 1.47.0 (5-Feb-2023)
/dev/mapper/yxxx--vg-root is mounted.
e2fsck: Cannot continue, aborting.
```
This, is it possible to do a filesystem check (and repair) from the hypervisor?