Its been awhile, but it seems like in the past, you would power the
system down, boot from removable media, import your pool then destroy or
archive the /etc/zfs/zpool.cache, and possibly your /etc/path_to_inst
file, power down again and re-arrange your hardware, then come up one
final time with a reconfigure boot.  Or something like that.

I remember a similar video that was up on YouTube as done by some of the
Sun guys employed in Germany.  They build a big array from USB drives,
then exported the pool.  Once the system was down, they re-arranged all
the drives in random order and ZFS was able to figure out how to put the
raid all back together.  I need to go find that video.


On 10/ 3/12 07:04 AM, Fajar A. Nugraha wrote:
> On Wed, Oct 3, 2012 at 5:43 PM, Jim Klimov <> wrote:
>> 2012-10-03 14:40, Ray Arachelian пишет:
>>> On 10/03/2012 05:54 AM, Jim Klimov wrote:
>>>> Hello all,
>>>>    It was often asked and discussed on the list about "how to
>>>> change rpool HDDs from AHCI to IDE mode" and back, with the
>>>> modern routine involving reconfiguration of the BIOS, bootup
>>>> from separate live media, simple import and export of the
>>>> rpool, and bootup from the rpool.
> IIRC when working with xen I had to boot with live cd, import the
> pool, then poweroff (without exporting the pool). Then it can boot.
> Somewhat inline with what you described.
>>> The documented way is to
>>>> reinstall the OS upon HW changes. Both are inconvenient to
>>>> say the least.
>>> Any chance to touch /reconfigure, power off, then change the BIOS
>>> settings and reboot, like in the old days?   Or maybe with passing -r
>>> and optionally -s and -v from grub like the old way we used to
>>> reconfigure Solaris?
>> Tried that, does not help. Adding forceloads to /etc/system
>> and remaking the boot archive - also no.
> On Ubuntu + zfsonlinux + root/boot on zfs, the boot script helper is
> "smart" enough to try all available device nodes, so it wouldn't
> matter if the dev path/id/name changed. But ONLY if there's no
> zpool.cache in the initramfs.
> Not sure how easy it would be to port that functionality to solaris.
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