zfs discuss - Nov 2009 - Lost boot partition after running zfs upgrade

I installed Solaris 10 x86 on an HP DL 360G5 with an HP smart array P400i
controller.  Two mirrored RAID volumes were created, each with it?s own
spare.

I installed Solaris onto a ZFS partition during setup onto one of the
mirrored volumes.  Used the second mirrored volume to create another ZFS
pool.

I patched the OS, rebooted, then ran zpool upgrade followed by zfs upgrade
and rebooted again.  This time, the boot partition was gone and I was left
at the grub prompt.


I reinstalled the OS, patched, rebooted, and ran zpool upgrade and rebooted
fine.  I was able to import the other zfs pool (on the second mirrored
volume) ? now that one is running zfs v4 and the root partition is running
zfs v3, but I?m reluctant to try and upgrade it again....

1. Is this a supported hardware/software configuration?
2. Has anybody seen this before?

Thanks,
Neil
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On Nov 24, 2009, at 1:59 PM, Conner, Neil wrote:
> I installed Solaris 10 x86 on an HP DL 360G5 with an HP smart array  
> P400i controller.  Two mirrored RAID volumes were created, each with  
> it?s own spare.
>
> I installed Solaris onto a ZFS partition during setup onto one of  
> the mirrored volumes.  Used the second mirrored volume to create  
> another ZFS pool.
>
> I patched the OS, rebooted, then ran zpool upgrade followed by zfs  
> upgrade and rebooted again.  This time, the boot partition was gone  
> and I was left at the grub prompt.
You needed to upgrade grub to a version that supports the zpool/zfs  
version.
Otherwise, grub could not properly mount the root file system.
  -- richard
> I reinstalled the OS, patched, rebooted, and ran zpool upgrade and  
> rebooted fine.  I was able to import the other zfs pool (on the  
> second mirrored volume) ? now that one is running zfs v4 and the  
> root partition is running zfs v3, but I?m reluctant to try and  
> upgrade it again....
>
> 	? Is this a supported hardware/software configuration?
> 	? Has anybody seen this before?
>
> Thanks,
> Neil
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