[Libguestfs] guestfs-tools for *BSD images

[Richard W.M. Jones]

On Tue, Dec 07, 2021 at 12:18:30PM -0600, Brady Pratt wrote:
> [    1.998352] >>>WARNING<<< Wrong ufstype may corrupt your filesystem, default
> is ufstype=old

The problem is this one and it's not easily resolvable.  UFS isn't a
single filesystem type, it's a clade of filesystems which all evolved
from a common ancestor through the various BSDs, but crucially have
the same magic number (so no way to differentiate them).  For *BSD
itself this isn't a problem since the same OS creates and consumes the
filesystem.  But it's a problem for Linux which must be told which
filesystem type to mount - and get it wrong, as you can see above, Bad
Things happen.

So it's not really possible to resolve this in libguestfs as we don't
know the filesystem type until after we have mounted and inspected it.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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