Re: grub-pc mdadm root
On Sat, Jan 14, 2012 at 2:35 PM, Marc Auslander <marcausl@gmail.com> wrote:
> Tom H <tomh0665@gmail.com> writes:
>> On Fri, Jan 13, 2012 at 4:08 PM, Marc Auslander <marcausl@gmail.com> wrote:
>>> I'm still having no luck booting an mdadm 1.2 root.
>>>
>>> grub2 works - I get into the boot kernel and initram. But when it
>>> comes to mount the real kernel, I fall into initramfs shell with a
>>> message that the kernel can't be found. And it can't, because the
>>> raid root device hasn't been assembled. (No raid devices exist in
>>> /dev).
>>>
>>> I can assemble it in initramfs shell using mdadm, so all the stuff is there.
>>>
>>> So I really need to see any grub.cfg stanza that actually works -
>>> mostly to see what vmlinuz parameters are needed.
>>
>> It think that it's your initrd that needs some attention...
>>
>> Anyway, from a wheezy install:
>
> Thanks for the help.
>
> That's essentially what my grub stanza does. I've run
> update-initramfs. So I don't know what "attention" my initrd needs at
> this point.
> This is squeeze - is it possible that the newer kernel has code to
> assemble early?
I've got servers running squeeze with grub2 and mdadm.
> Is there some other "option" or setting which causes it to assemble early?
Can you unpack your initrd and check whether you have an "mdadm"
script in the "scripts" directory, an mdadm rule in the "udev"
directory, and an "/etc/mdadm/mdadm.conf"? (I can't access a Debian
box at the moment or I would've given you exact paths to the first
two; sorry.)
> Also, are you using md version 1.2 raid.
Yes; it's the d-i default for squeeze and wheezy.
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