[ale] initramfs capable of a multi-device btrfs / new initramfs with dracut help?

[Brian Pitts]

On 07/19/2010 12:32 AM, Michael B. Trausch wrote:
> On Sat, 2010-07-17 at 18:21 -0400, Brian Pitts wrote:
>> On 07/17/2010 02:47 PM, Michael Trausch wrote:
>>> You would configure the array in mdadm.conf (either
>> in /etc/mdadm.conf or
>>> /etc/mdadm/mdadm.conf) and the use mdadm to start up the array, for
>> example:
>>>
>>> ARRAY /dev/md0 level=raid6 metadata=1.1 num-devices=5
>>> UUID=3b4045f1:253f01cd:de8
>>> 023f1:8438c90d name=fennel:ATS_SRVR_R6_0
>>>
>>> And:
>>>
>>> mdadm --assemble /dev/md0 --uuid=3b4045f1:253f01cd:de8023f1:8438c90d
>>
>> What if / is on the RAID?
> 
> Well, that depends.

Thanks for the response, but I think I already understood that part.

I guess my question was that, if your array has to be configured in /etc
rather than autodetected, how is that configuration transferred into the
initramfs (which we'll assume is on a non-RAID /boot)? This may be a
questions with as many answers as there are distros.

GRUB2 supposedly supports booting from any RAID level linux supports.

http://www.mail-archive.com/grub-devel@gnu.org/msg08345.html

-- 
All the best,
Brian Pitts