Fedora 42 as dom0 in Qubes 4.3

[rustybird]

@arkenoi

I do not care about file orphaning, but if your guest OS enabled it which debian 12 now does by default, your dom0 e2fs-utils cannot handle this filesystem.

VM filesystems should never be handled in dom0 at all:

@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.