Re: Cannot mount / from UFS labels

On Fri, Aug 21, 2009 at 03:17:23PM +0200, Ulrich Spörlein wrote:
> 
> I'm not sure this ever worked for 7.x but now I need to have the same

It sure does, for me at least:

/dev/ufs/home on /home (ufs, NFS exported, local, soft-updates)
/dev/ufs/mm on /mm (ufs, NFS exported, local, noatime, soft-updates)
/dev/ufs/mm-flac on /mm/flac (ufs, NFS exported, local, noatime, read-only)
/dev/ufs/mm-music on /mm/music (ufs, NFS exported, local, noatime, read-only)
/dev/ufs/mm-video on /mm/video (ufs, NFS exported, local, noatime, soft-updates)
/dev/ufs/mm-video-tv on /mm/video/tv (ufs, local, noatime, soft-updates)
/dev/ufs/sw on /sw (ufs, local, noatime, soft-updates)
/dev/ufs/sw-bsd on /sw/bsd (ufs, NFS exported, local, noatime, soft-updates)
/dev/ufs/sw-images on /sw/images (ufs, NFS exported, local, noatime, read-only)
/dev/ufs/backup on /backup (ufs, local, noatime, soft-updates)

# uname -a
FreeBSD myhost 7.1-STABLE FreeBSD 7.1-STABLE #26: Thu Feb 12 15:07:00 CST 2009     rick_at_myhost:/usr/obj/usr/src/sys/GENERIC  i386

> root fs device on two machines: labels to the rescue! As I don't want to
> use the GEOM labels, but UFS labels, this is what I did:

These are essentially the same thing, in that glabel wraps the UFS labels.

> # tunefs -L root / (in single user)
> then updated /etc/fstab and rebooted

Was / mounted read-write at the time?  After the tunefs, you should have
seen some messages on the console related to the labels.

> The kernel does not find this filesystem, pressing ? shows only
> - a bunch of ufsid/* devices
> - lots of partition names
> - ntfs/System and msdosfs/HIDDEN which are other partitions on this
> machine.
> 
> Only ufs/ comes up empty. What's my error?

What version/build of FreeBSD?
Are you using a GENERIC kernel?
What does dmesg say?
What was shown on the console when you did the tunefs?
What is the output of "ffsinfo -l 1 / | grep volname"?
Also show us a listing of /dev/ufs/.

-- Rick C. Petty