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

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

On Thu, 11 Oct 2007, Marc Grimme wrote:

>> Right, that seems to have worked. Almost there. Now I get:
>>
>> Mounting LABEL=/ on /mnt/newroot..device not found error [FAILED]
>
> hmm. That looks weired. Have a look at /var/log/comoonics-boot.log or send it
> and I can tell you more.
>
>> 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.
>
> That's new for me as well.

Where does the initrd get the root fs to mount? fstab? It looks like 
the RHEL5 install put the labels on for me.

>>>>>> Or will specifying the iscsi stuff in cluster.conf make all this work?
>>>>>> Given that the iscsi components weren't in the standard initrd, I'm
>>>>>> not too convinced this will work (although there's a distinct
>>>>>> possibility that this is totally unrelated and irrelevant in this
>>>>>> case).
>>>>>
>>>>> Yes I agree. Make it work for you and we'll integrate it so it'll only
>>>>> be called if iscsi is selected.
>>>>
>>>> LOL! I must say I'm not used to getting integrated into the development
>>>> effort this quickly. Not that I don't mind. :-)
>>>
>>> We'll integrate it in preview and tag it as experimental. But as iscsi
>>> integration is on our list but only in next major version we are happy to
>>> use anything that is provided by others.
>>
>> It surprises me that the whole concept didn't start with iSCSI. How else
>> can you provide a shared GFS root for a cluster? NBDs? Shared SCSI bus (2
>> controllers in 2 machines with the drives shared on the chain)?
>
> We started with SAN based on FibreChannel. Cause initially there was something
> we found quite nice which was called DMEP or DLOCKs or something that did the
> locking inside the SCSI-Protocol. But it didn't work out.
>
> iSCSI wasn't there and gnbd either. There was only FibreChannel or a shared
> parallel scsi bus.

Ah, I see! So, what you're really saying is that getting iSCSI to work is 
actually quite important. :-) Well, with a bit of luck, and help from you, 
I'll probably have it up and running by the time the day is up. :-)

Speaking of which - would you prefer a patch for all the changes I made, 
or would a tar ball of the modified files suffice for inclusion in the 
rpms in the repository?

Gordan