Arch Linux

fettouhi

Member

Registered: 2007-05-07

Posts: 757

[Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

I just bought a brand new DELL Studio desktop and it has 2 500 HD's which I would like to run in RAID 0. I've setup the BIOS to run the RAID 0. Now I want the arch linux installation to recognise the volume. I followed the guide on the wikipage

http://wiki.archlinux.org/index.php/Ins … _Fake-RAID

but /dev/mapper doesn't show anything after modprobing the modules and installing dmraid. My controller is a intel matrix storage controller, so what module should I modprobe because sata_sil isn't the right one.

Regards

André

Last edited by fettouhi (2008-12-15 10:57:18)

iBertus

Member

From: Greenville, NC

Registered: 2004-11-04

Posts: 2,228

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

The easiest way would be to just setup the array with mdadm and forget the Intel specific stuff. The end result will be the same since that RAID controller is fake raid.

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

You say, I should simply use software raid?

Regards

André

Edit: I tried again and it seems like that the dmraid does indeed see my RAID 0 configuration in device /dev/mapper.

Last edited by fettouhi (2008-12-09 10:04:11)

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

Well I finally managed to set up raid via dmraid but I'm having issues with GRUB. I have installed the way it is mentioned in the wiki page. But when I try to boot my arch I get an error 15: file not found. My grub lines say

root (hd0,0)
kernel /boot/vmlinuz26 root=/dev/mapper/iws_baaggideei_Volume03 ro

iws_baaggideei_Volume0 is the RAID 0 partion on my system
iws_baaggideei_Volume01 is /boot (100 MB)
iws_baaggideei_Volume02 is swap (4096 MB)
iws_baaggideei_Volume03 is / (100 GB)
iws_baaggideei_Volume04 is /home (the rest 890 GB)

what am I missing???

I've added dmraid to the HOOKS line in mkcpio... file and also dm_mod and sata_sil in the MODULES line of the mkcpio.

Regards

André

PS. Can anybody post their grub setup with dmraid?

Last edited by fettouhi (2008-12-11 07:45:15)

nowahn

Member

From: elsewhere

Registered: 2008-12-05

Posts: 75

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

you have a separate /boot partition, so your menu.lst must say :

root (hd0,0) # the partition including /boot
kernel /vmlinuz26 ... # without leading /boot
initrd /kernel26.img # without leading /boot

(in grub, / is the root of the partition that was set with the root command, your vmlinuz26 and kernel26.img are in (hd0,0)/, not in (hd0,0)/boot/)

did you install from core CD or from FTP ?
there was a dmraid update few weeks ago that modified device names that dmraid creates :
it add "p" before the number of the partition (your iws...Volume0 don't change, but your iws...Volume0# change to iws...Volume0p#)
if you installed from core CD, you will only need to add this "p" when you will upgrade dmraid (or the full system)
(you will then need to edit both /boot/grub/menu.lst and /etc/fstab)
if you installed from FTP, you need to add this "p" now, as you installed last version of dmraid

---

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fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

I installed from CD, so I used the latest iso there is (2008.06). So I just have to remove the /boot/ from vmlinuz26 and kernel26.img? Thanks for the infor regarding the update of dmraid (I was actually worried about that also).

Regards

André

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

Read the guide wrong. So this is fixed!

Regards

André

loosec

Member

Registered: 2007-03-08

Posts: 134

Re: [Solved] RAID 0 with Arch Linux and Intel Matrix Storage Manager

Nice to know guide still works, been away for some time now, also time for a major reinstall on my part. =;D