F9: fsck gotcha on booting

[Patrick O'Callaghan]

On Mon, 2008-04-21 at 20:32 -0700, Andrew Farris wrote:
> Patrick O'Callaghan wrote:
> > My fstab contains the line:
> > 
> > LABEL=/xtra             /xtra                   ext3    defaults        1 2
> > 
> > which worked fine on F8. Now with F9-Preview the boot process halts with
> > the following error (I'm working form memory here):
> > 
> > 	Fsck: cannot resolve "LABEL=/xtra"
> > 
> > and drops me to a Shell to fix the problem. Two things:
> > 
> > 1) From the Shell I can happily "mount /xtra" with no problems, so what
> > gives?
> > 
> > 2) I can't edit /etc/fstab from this Shell. "mount" claims that the
> > system disk is mounted rw. but when I try to edit fstab "vi" tells me
> > it's read-only, and in fact "> foo" from the Shell gives the same error.
> > So I feel I have to ask why is the emergency Shell set up to not let me
> > edit anything?
> 
> Did you try editing then using w! to save it?  That may have worked.

Of course. It didn't. w! is fine if it's just a write-protected file.
This was a read-only filesystem.

poc