10.0-BETA4 (upgraded from 9.2-RELEASE) zpool upgrade -> boot failure

[Florent Peterschmitt]

Le 11/12/2013 09:26, Florent Peterschmitt a écrit :
> Le 11/12/2013 02:07, Artem Belevich a écrit :
>> On Tue, Dec 10, 2013 at 2:22 AM, Florent Peterschmitt
>> <florent at peterschmitt.fr> wrote:
>>> Hi,
>>>
>>> Is there anything known about ZFS under 10.0-BETA4 when FreeBSD was
>>> upgraded from 9.2-RELEASE?
>>>
>>> I have two servers, with very different hardware (on is with soft raid
>>> and the other have not) and after a zpool upgrade, no way to get the
>>> server booting.
>>
>> It may help if you could provide details on how exactly "no way to get
>> the system booting" manifests itself.
>> Serial console capture of a failed boot would be a good start.
>>
>> Did it get to the loader?
>> Did the loader manage to read loader.conf and load kernel and modules?
>> Did the kernel start?
>> Did the kernel manage to mount root FS?
>>
>> --Artem
>>
> 
> No, there is no module loading, no more than the kernel load. I had an
> error like "no fs recognized", then it is stuck with the interactive
> minimal boot loader (which name is "loader", correct?). The only thing I
> can do is to reboot the computer.
> 
> In rescue (9.2-RELEASE) I can import the zpool without problem, then use
> the gpart inside the 10.0-BETA4 (on the remaining problematic server it
> is a BETA4) and rewrite the bootcode. No changes.
> 
> This week-end I may be able to get a vKVM. It's a low-cost server and
> there are no other way to repair the system than a rescue.
> 
> Also, can it be a problem from the BIOS? To old to boot from a GPT
> "formated disk" (sorry I don't know much about disks and BIOS)? It would
> be possible only if some changes were brought into the bootcode.
> 
> But maybe the problem isn't here, it can be from the zpool itself.
> 
> Also like a said on -stable, I *cannot* reproduce the problem in a VM:
> 
> * Installing 9.2-RELEASE from scratch like I made for the server.
> * Binary upgrade to 10.0-BETA4 (install kernel, reboot, install
> userland, rebuild ports, install last parts of userland)
> * zpool upgrade tank


Forgotten -just in the mail- the gpart bootcode step, which I made.


> * reboot
> * It's all fine.
> 


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