Re: MFC of ZFSv15

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:
>>>=20
>>> Thanks again for all the ZFS fixes and enhancements!   Are there any
>>> caveats to upgrading ?
>>>=20
>>> Do I just do
>>>=20
>>> zpool upgrade -a
>>> zfs upgrade -a
>>>=20
>>> or are there any extra steps ?
>>>=20
>>=20
>> Hi Mike,
>>=20
>> 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.
>>=20
> I was bitten by this problem in a previous ZFS upgrade.
>=20
> To be sure, I have added this patch to zfsimpl.c so, at boot I know if =
zpool/zfs upgrade will be OK.
>=20
> Henri
>>=20
>> Regards, UPDATING should have anything else.
>>=20
>=20
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Dan
--
Dan Mack
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