Can I recover a VM where the file system got corrupted?

[rustybird]

@BEBF738VD

Not a good approach, you effectively accessed untrusted data from dom0.

To expand on this, because it seems like the crux of the problem that’s tripping up people again and again - is that it’s not obvious what counts as “data”:

@rustybird

Never run filesystem utilities on (or worse: mount) VM filesystems in dom0. The filesystem on-disk format itself, and not just the files stored in it, is a complex data structure that’s fully controlled by the VM, so it’s best treated as potentially malicious. Filesystem utilities (or kernel filesystem code) can’t be assumed to be robust against this.