Re: gptzfsboot doesn't like change (failure after swapping drives)

George Hartzell wrote:
> Paul Wootton writes:
>  > Stefan Bethke wrote:
>  > > Am 23.07.2009 um 04:37 schrieb George Hartzell:
>  > >
>  > >> I've been playing around with building an 8.0BETA2 system with
>  > >> everything on a single zfs filesystem (I'll get fancier later) on a
>  > >> zpool that is a 4 disk raidz.
>  > >
>  > > Quite a few people had no luck with booting from RAIDZ volumes at 
>  > > all.  (Single disks and mirrors seem to work fine.)  See this thread: 
>  > > http://lists.freebsd.org/pipermail/freebsd-fs/2009-July/006466.html
>  > >
>  > >
>  > > Stefan
>  > >
>  > I've been trying on and off for a few months now to get a raidz pack to 
>  > boot and a few days ago finally got a working setup.
>  > 
>  > I have a 3 disk raidz pack. I've only set zfs_load="YES" in 
>  > /boot/loader.conf. All the mountpoints are set to none and I am using 
>  > /etc/fstab instead. I have the root of the working filing system as a 
>  > zfs volume, and not in the base of the pool
>  > 
>  > zboot         7.31G   201G    18K  none  (this never gets mounted)
>  > zboot/root    65.4M   201G  65.4M  none  (this gets mounted as /)
>  > zboot/tmp       27K   201G    27K  none  (this gets mounted as /tmp)
>  > zboot/usr     7.21G   201G  7.21G  none  (this gets mounted as /usr)
>  > zboot/var     35.4M   201G  35.4M  none  (this gets mounted as /var)
>
> If you don't have any important data on it, and don't mind having to
> recreate it, it'd be interesting to try to boot it with one drive
> pulled.
>
> I'll bet that you can't, even though you'll be able to see the pool if
> you boot from some fixit media.
>
> I'll also bet that you still won't be able to boot once you reinsert
> the drive.
>
> g

I tried pulling one of the drives. You were correct that the pack would 
not boot.
However, if I put that drive back in, I can boot from the pack with out 
a problem.
I didn't try booting to a FixIt mode and checking the state of the pack 
though

Paul


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