Re: [OSR-devel] Remounting New Root After Booting

[Gordan B. <go...@bo...>]

On Thu, 11 Oct 2007, Marc Grimme wrote:

>>>>>>>> And, obviously, I'd need to make all this happen before the normal
>>>>>>>> boot process tries to mount the root disk.
>>>>>>>
>>>>>>> Do it before or right after scsi-start is called.
>>>>>>
>>>>>> I can't find any reference to "scsi-start". Where does this happen?
>>>>>
>>>>> It's scsi_start in linux.generic.sh Line 239.
>>>>
>>>> D'oh! What a difference an _ makes.
>>>>
>>>> I think the iSCSI stuff should be added before the dm_start stuff, which
>>>> is just before the scsi_start.
>>>>
>>>> Right, that seems to have worked. Almost there. Now I get:
>>>>
>>>> Mounting LABEL=/ on /mnt/newroot..device not found error [FAILED]
>>>> Mounting /cdsl.local on /cluster/cdsl/3..no cdsldir found
>>>> "/mnt/mewroot//cluster/cdsl"
>>>> Could not mount cdsl /cdsl.local to /cluster/cdsl/3. Exiting
>>>>
>>>> Where does it get the LABEL=/ from? I'm pretty sure I didn't set any.
>>>
>>> Concerning LABEL=/
>>> I think you should check you bootloader config and change root=LABEL=/ to
>>> root=/dev/sd.. That should do it.
>>
>> What files is that in?
>
> this is setup by your root environment. Normally in grub. There should be
> something comparable on your pxe environment if you use it.
> default from redhat:
> [root@mobilix-01 ~]# cat /proc/cmdline
> ro root=LABEL=/ rhgb quiet
> sharedroot cluster:
> [root@axqa03_1 ~]# cat /proc/cmdline
> root=/dev/vg_axqa03_sr/lv_sharedroot com-step com-debug

Oh, THAT root= parameter! Right. I'm feeling really stupid now. :'(

Gordan