Arch Linux

juan_sck

Member

Registered: 2007-03-06

Posts: 26

problem with Fake-RAID and GRUB

Hello, I am trying to install Arch-64 2008.06 CD on nforce4 Fake-RAID, but I can not make Grub boot it.
I followed this wiki entry http://wiki.archlinux.org/index.php/Ins … _Fake-RAID

At the end Grub seems to install correctly, but when I try boot Arch it says:

root (hd0,1)
  Filesystem type is reiserfs, partition type 0x83
kernel /vmlinuz26 root=/dev/mapper/nvidia_jjcaejaj2 ro

Error 15: File not found

/dev/mapper/nvidia_jjcaejaj is my RAID array, wich has 3 partitions:
1- NTFS
2- Reiserfs -> This is boot partition
3- Swap

I think my problem is the Grub config because it is installed (it runs at start up) and it can boot my windows partition.
I installed Grub on MBR (/dev/mapper/nvidia_jjcaejaj) with following settings:

# (0) Arch Linux
title  Arch Linux
root   (hd0,1)  # I also tryed (hd0,0) as wiki says
kernel /boot/vmlinuz26 root=/dev/mapper/nvidia_jjcaejaj2 ro
initrd /boot/kernel26.img

title Windows
rootnoverify (hd0,0)
chainloader +1

Please somebody help me to make grub work and update wiki entry.

Last edited by juan_sck (2008-06-29 16:59:04)

lilsirecho

Veteran

Registered: 2003-10-24

Posts: 5,000

Re: problem with Fake-RAID and GRUB

I suggest that device-mapper is not in the kernel...check out /var/abs for a PKGBUILD..................

---

Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

juan_sck

Member

Registered: 2007-03-06

Posts: 26

Re: problem with Fake-RAID and GRUB

I suggest that device-mapper is not in the kernel...check out /var/abs for a PKGBUILD..................

I can't probe it, but it should as I edited /etc/mkinitcpio.conf and added dmraid to hooks and dm-mod (the module needed for nforce4) to modules during the install process, and then it bulds the kernel.

lilsirecho

Veteran

Registered: 2003-10-24

Posts: 5,000

Re: problem with Fake-RAID and GRUB

I get a note when I use /sbin/lilo -v to load the new kernel parameters ...the note says to the effect that device-mapper is not in the kernel....therefore, it needs to be built via PKGBUILD.  I assume that it was dropped from the kernel because only a few mobos have fake raid........

If device-mapper is not included in the kernel, then the mkinitcpio hooks won't do a thing and modprobe won't find it either.

There is a PKGBUILD in /var/abs for device-mapper.

I queried TPOWA about this and received no answer as yet.  I have never had /sbin/lilo -v end up with a message of this type until kernel 2.6.25 and it caused a kernel panic.

Good luck with your boot.............

---

Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

lilsirecho

Veteran

Registered: 2003-10-24

Posts: 5,000

Re: problem with Fake-RAID and GRUB

Check this post:

dmraid problem with 2008.06 by st0nedpenguin    (installation)

---

Prediction...This year will be a very odd year!
Hard work does not kill people but why risk it: Charlie Mccarthy
A man is not complete until he is married..then..he is finished.
When ALL is lost, what can be found? Even bytes get lonely for a little bit!     X-ray confirms Iam spineless!

loosec

Member

Registered: 2007-03-08

Posts: 134

Re: problem with Fake-RAID and GRUB

Sorry about not updating the wiki, it's done now however.

I just did a fresh install and found a few new steps that were needed.

Installed on a Silicon Image Chipset and it works perfectly.

I used the Latest Overlord Install image on a USB stick.

It's dm_mod, not dm-mod btw.

Last edited by loosec (2008-06-30 21:42:55)

juan_sck

Member

Registered: 2007-03-06

Posts: 26

Re: problem with Fake-RAID and GRUB

loosec you don't add device-mapper to kernel? you just made the steps on wiki?

in new wiki what do you mean with:

In menu.lst I had to enter (hd0,0) after root on two lines

do you mean this line?
root   (hd0,1)
or this one?
kernel /boot/vmlinuz26 root=/dev/mapper/nvidia_jjcaejaj2 ro

I have also tryed to install arch on first partition. but I still can't boot it.

loosec could you post your menu.lst?

juan_sck

Member

Registered: 2007-03-06

Posts: 26

Re: problem with Fake-RAID and GRUB

I don't know where was the problem, but today I tryed to meke a new install with core CD instead of FTP install and it works.

Thanks for your help dudes.

loosec

Member

Registered: 2007-03-08

Posts: 134

Re: problem with Fake-RAID and GRUB

/boot/grub/menu.lst

title  Arch Linux  [/boot/vmlinuz26]
root   (hd0,0)
kernel /vmlinuz26 root=/dev/mapper/nvidia_ejebcchf5 ro vga=795
initrd /kernel26.img

/etc/fstab

/dev/mapper/nvidia_ejebcchf5 /        ext3    defaults    0    1
/dev/mapper/nvidia_ejebcchf6 swap     swap     defaults    0    0
/dev/mapper/nvidia_ejebcchf1 /boot     ext2     defaults    0    0
/dev/mapper/nvidia_ejebcchf8 /home    ext3    defaults    0    2
/dev/mapper/nvidia_ejebcchf7 /tmp    ext2    defaults    0    0
/dev/mapper/nvidia_ejebcchf9 /mnt/wst/  ntfs-3g    force        0    0
/dev/mapper/nvidia_geceiece5 /mnt/wbig/    ntfs-3g force        0    0

root (hd0,0) <-- this line. (hd0,0) was missing.

SkyValley

Member

Registered: 2008-04-09

Posts: 20

Re: problem with Fake-RAID and GRUB

I'm having this problem too. Is there any solution?

loosec

Member

Registered: 2007-03-08

Posts: 134

Re: problem with Fake-RAID and GRUB

juan_sck seems to have solved it by reinstalling, maybe you could be a bit more specific and post your grub menu.lst and partition table to start with?
I made a clean install with latest usb image and found no problems. Also updated the wiki then.

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: problem with Fake-RAID and GRUB

Why is /boot needed to be added to the GRUB lines if your boot partion is on (hd0,0). This confuses me in the wiki?

Regards

André

nowahn

Member

From: elsewhere

Registered: 2008-12-05

Posts: 75

Re: problem with Fake-RAID and GRUB

Why is /boot needed to be added to the GRUB lines if your boot partion is on (hd0,0)

in grub, / is the root of the partition that was set with the root command.
if you do not have a separate /boot partition, vmlinuz26 is in /boot/ (that is to say in (hd0,#)/boot/, where (hd0,#) is the root partition of your system)
if you have a separate /boot partition, vmlinuz26 is in / (that is to say in (hd0,#)/, where (hd0,#) is the /boot partition of your system)

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take time to daydream, inspiration comes ...

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: problem with Fake-RAID and GRUB

Got it . Many thakns my machine boots now, so I can proceed with the installation, but I get an error upon boot saying "can't parse block device" or something when it is looking at the root partition e.g. /dev/mapper/iws_baaggideei_Volume03. Then it proceeds to boot and says "going back to kernel parameters" is this something I should be worried about/fix?

Regards

André

nowahn

Member

From: elsewhere

Registered: 2008-12-05

Posts: 75

Re: problem with Fake-RAID and GRUB

did you put the "dmraid" hook at the end of the list in /etc/mkinitcpio.conf ?
if it is the case, try to put "dmraid" before "filesystems"

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take time to daydream, inspiration comes ...

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: problem with Fake-RAID and GRUB

Yes, I put dmraid at the end of the HOOK line in the /etc/mkinitcpio.conf file. I'll try your suggestion when I get home from work.

Regards

André

fettouhi

Member

Registered: 2007-05-07

Posts: 757

Re: problem with Fake-RAID and GRUB

Reinstalled and but dmraid before filesystems. Now the errors are gone, THANKS.

Regards

André