Arch Linux

Reasons

Member

From: Washington

Registered: 2007-11-04

Posts: 572

{SOLVED}Raid install, root device not found

I've been trying to get arch to install with raid in this layout, with ext2 partitions:

/dev/sda1 /dev/sdb1 --> /dev/md1 (raid1 for /boot)
/dev/sda3 /dev/sdb3 -->/dev/md3  (raid0 for /)

I had it working with gentoo, so after the arch wiki failed me, I went to theirs:
http://www.gentoo.org/doc/en/gentoo-x86 … nstall.xml

but when I boot, either way, I get root device not found. I made sure that I had the raid hook before filesystems and that I loaded the modules in /etc/mkinitcpio.conf. I'm not sure what I missed. To fix this, is there a way to mount my installation through the install disk and work on it and what did I do wrong?

Last edited by Reasons (2009-04-03 01:27:34)

fukawi2

Ex-Administratorino

From: .vic.au

Registered: 2007-09-28

Posts: 6,231

Website

Re: {SOLVED}Raid install, root device not found

http://wiki.archlinux.org/index.php/Ins … _a_Live_CD

If you want to mount your RAID partition from a Live CD, use

mdadm --assemble /dev/md0 /dev/sda3 /dev/sdb3 /dev/sdc3

(or whatever mdX and drives apply to you)

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Reasons

Member

From: Washington

Registered: 2007-11-04

Posts: 572

Re: {SOLVED}Raid install, root device not found

I caught that right after. For some reason I have yet to discover, the kernel didn't get rebuild after I edited mkinitcpio. All fixed now, for now.