[indiana-discuss] [caiman-discuss] liveCD could not work as rescue CD?

[jan damborsky]

Hi Jason,

Jason Zhao wrote:
> Moinak:
> Moinak Ghosh wrote:
>> Jason Zhao wrote:
>>> I think the "zpool import/export" will change the booting up 
>>> information which results in the panic.
>>>   
>>   You should be using   zpool import -R /mnt -f rpool.
>>
> I don't think it is working for me! I tried it, but it was still panic.
>
> Even it is working, I still believe it's a bug, maybe more properly for 
> ZFS boot or ZFS bugs. I don't see any difference to import with -R or 
> not from users' point of view. I haved filed a bug 1365.

We have encountered that behavior when we were doing target discovery of 
existing
ZFS pools. The problem is that  "zpool export" makes the root pool no longer
bootable. I am not sure if this is bug or intended behavior, you might
need to check with ZFS team.

The workaround is just reboot without explicitly exporting the pool.

Since you already did the "export", you could repair it but booting LiveCD
and importing the pool. It allows the pool to be bootable again.
Just make sure that the pool name is not changed from its original set 
during
installation.

I have attached appropriate information to the CR as well.

Thank you,
Jan

>
> Thanks
> Jason
>> Regards,
>> Moinak.
>>
>>> Thanks
>>> Jason
>>> Jason Zhao wrote:
>>>  
>>>> Hi,
>>>>
>>>> Recently I installed a indiana RC1 to hard disk, then I tried to 
>>>> boot up
>>>> from liveCD(RC1) in order to change something in hard disk (i.e., the
>>>> live cd works as rescue cd). I did a "zpool import" and "zpool export",
>>>> but I found the OS previously installed *panic*.
>>>>
>>>> Here is my steps:
>>>> 1. initial install indiana RC1
>>>> 2. boot up from hard disk, and it works OK
>>>> 3. boot up from live CD again.And do the operations
>>>> ###############################################
>>>> -bash-3.2# zpool import rpool
>>>> cannot import 'rpool': pool may be in use from other system
>>>> use '-f' to import anyway
>>>> -bash-3.2# zpool import -f rpool
>>>> -bash-3.2# zpool list
>>>> NAME SIZE USED AVAIL CAP HEALTH ALTROOT
>>>> rpool 35G 2.61G 32.4G 7% ONLINE -
>>>> -bash-3.2# zfs list
>>>> NAME USED AVAIL REFER MOUNTPOINT
>>>> rpool 2.61G 31.8G 56.5K /rpool
>>>> rpool at install 19K - 55.5K -
>>>> rpool/ROOT 2.61G 31.8G 18K /rpool/ROOT
>>>> rpool/ROOT at install 0 - 18K -
>>>> rpool/ROOT/opensolaris 3.38M 31.8G 2.53G legacy
>>>> rpool/ROOT/opensolaris/opt 0 31.8G 4.59M /opt
>>>> rpool/export 102K 31.8G 67K /export
>>>> rpool/export at install 17K - 19K -
>>>> rpool/export/home 18K 31.8G 18K /export/home
>>>> rpool/export/home at install 0 - 18K -
>>>> -bash-3.2# ls
>>>> -bash-3.2# zpool export rpool
>>>> -bash-3.2# zfs list
>>>> no datasets available
>>>> -bash-3.2# zpool list
>>>> no pools available
>>>> ###############################################
>>>>
>>>> 4. Then I reboot from previously installed OS, but it is panic.
>>>> Here is what is displayed:
>>>> ###############################################
>>>> pani[cpu0]/thread=fec1dc60: cannot mount root path /ramdisk:a
>>>>
>>>> fec3652c genunix:rootconf+fc (c0f040, 1, fec1d3d0)
>>>> fec36550 genunix:vfs_mountroot+54 (fe800010, fec32350,)
>>>> fec36564 genunix:main+b4()
>>>>
>>>> panic: entering debugger (no dump device, continue to reboot)
>>>> Loaded modules: [ scsi_vhci uppc zfs specfs pcplusmp random 
>>>> cpu.generic ]
>>>> kmdb: target stopped at:
>>>> kmdb_enter+0xa: pushl %eax
>>>> ###############################################
>>>>
>>>> Thanks
>>>> Jason
>>>> _______________________________________________
>>>> caiman-discuss mailing list
>>>> caiman-discuss at opensolaris.org
>>>> http://mail.opensolaris.org/mailman/listinfo/caiman-discuss
>>>>       
>>> _______________________________________________
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>>> indiana-discuss at opensolaris.org
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>>>   
>
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