[Bug 392510] Re: Dual-boot install using mdadm root fails to boot

[Christian Gunning]

Yes, i understand that it's a driver for BIOS magic that i'd rather not
use.

> When you create a RAID from the BIOS it does a RAID1 or whatever on the
> entire array using all the drives you select. You cant do a partial bios
> raid setup as this is illogical.

Is there a usage scenario where this causes problems?  It's running,
i'm using it, and it appears to work just fine.  I agree, it's an ugly
hack, but so is BIOS raid...   If it's a dangerous hack, how is this
likely to manifest?

> It is much simpler to just use dmraid instead of mdadm, it will gather
> the raid setup from the bios without you having to do anything.

The "official" ubuntu documentation begs to differ with respect to
both ease and safety:
from https://help.ubuntu.com/community/FakeRaidHowto:
"FakeRAID is not supported by Ubuntu."
"So it secures the system from data loss, but the system can
nonetheless crash. "

Not entirely confidence-inspiring...

-- 
Dual-boot install using mdadm root fails to boot
https://bugs.launchpad.net/bugs/392510
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.

-- 
ubuntu-bugs mailing list
ubuntu-bugs at lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs