Re: [Libguestfs] guestfs-tools for *BSD images

On 12/09/21 03:28, Yongkui Guo wrote: > Hi Brady, > There is a related bug before: Bug 541618 > <https://bugzilla.redhat.com/show_bug.cgi?id=541618> - guestfish not able > to mount freebsd ufs2 partitions automatically The last comment on that bug is dated 2013-11-22 at present. With the justification given by Rich in this very thread (= impossible to tell apart different things that all claim to be UFS), is it even possible to fix that bug? Should we close it as CANTFIX?

Thanks Laszlo > > On Wed, Dec 8, 2021 at 10:26 PM Laszlo Ersek <lersek(a)redhat.com&gt; wrote: > >> On 12/08/21 11:52, Richard W.M. Jones wrote: >>> 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. >> >> (I think it *should* be considered a problem even for the *BSDs; what >> about moving disks between different BSD versions or flavors?) >> >>> 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. >>> >> >> _______________________________________________ >> Libguestfs mailing list >> Libguestfs(a)redhat.com >> https://listman.redhat.com/mailman/listinfo/libguestfs >