MFC of ZFSv15

[Dan Mack]

But I should be able to boot my ZFSv14 root pool using the ZFSv15 build of FreeBSD, correct?   But the problem scenario would be when I've upgraded by root pool to v15 and I attempt to boot it with v14 boot loader.  At least that is what I think ...

I guess what I'm getting at is ... you should be able to buildworld, installkernel, reboot, installworld, reboot without worry.   But when after your run 'zpool upgrade', you will need to re-write the bootcode using gpart on each of your root pool ZFS disks.

Am I understanding this correctly ?

Thanks for all the work on ZFS BTW, it's great!

Dan

On Sep 16, 2010, at 2:03 PM, Henri Hennebert wrote:

> On 09/16/2010 17:18, jhell wrote:
>> On 09/16/2010 09:55, Mike Tancsa wrote:
>>> 
>>> Thanks again for all the ZFS fixes and enhancements!   Are there any
>>> caveats to upgrading ?
>>> 
>>> Do I just do
>>> 
>>> zpool upgrade -a
>>> zfs upgrade -a
>>> 
>>> or are there any extra steps ?
>>> 
>> 
>> Hi Mike,
>> 
>> No-one knows your bootcode better than you. So if you are upgrading
>> don't forget if you are on a ZFS root then your bootcode might need
>> updating.
>> 
> I was bitten by this problem in a previous ZFS upgrade.
> 
> To be sure, I have added this patch to zfsimpl.c so, at boot I know if zpool/zfs upgrade will be OK.
> 
> Henri
>> 
>> Regards, UPDATING should have anything else.
>> 
> 
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Dan
--
Dan Mack
mack at macktronics.com