grub: windows doesn't boot, ubuntu in raid1

[fedesuarez]

Hi everybody,

I have three identical HD, first two (sda and sdb) are running software raid1 and the third is running windows. After installing Ubuntu server 8.04 (and then ubuntu-desktop on it) I install grub but when I restart and select to boot up windows I get this message:

Error 13
Invalid or unsupported executable format

I first installed Windows and then moved it to the last SATA connector and installed Ubuntu in the other two hd. Since there is no way to boot windows from grub, I connect only the windows HD and it boots normally.

I was googling a lot but couldn't find the solution for my setup... I have several partitions, here you go my fstab file:


# /dev/md5
UUID=30872970-1837-4310-9fdb-808cefa39ba8 / ext3 relatime,errors=remount-ro 0 1
# /dev/md0
UUID=fed54234-927f-4c4e-91e3-aba0814109cf /boot ext3 relatime 0 2
# /dev/md2
UUID=ca4c0b23-790c-443b-9229-3bde3d4fee7f /home ext3 relatime 0 2
# /dev/md3
UUID=ce230ffd-e60a-41bb-87ee-0b28add96b15 /tmp ext3 relatime 0 2
# /dev/md4
UUID=e9d64782-55e1-45e7-96ad-32b9ef771e47 /var ext3 relatime 0 2
# /dev/md1
UUID=72e50e00-b317-40c8-8968-7dd8b528b7d3 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0



And the menu.lst file is this:

everything commented up to here...
## ## End Default Options ##


title Ubuntu 8.04, kernel 2.6.24-16-server
root (hd0,0)
kernel /vmlinuz-2.6.24-16-server root=/dev/md5 ro quiet splash
initrd /initrd.img-2.6.24-16-server
quiet

title Ubuntu 8.04, kernel 2.6.24-16-server (recovery mode)
root (hd0,0)
kernel /vmlinuz-2.6.24-16-server root=/dev/md5 ro single
initrd /initrd.img-2.6.24-16-server

title Ubuntu 8.04, memtest86+
root (hd0,0)
kernel /memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title Other operating systems:
root


# This entry automatically added by the Debian installer for a non-linux OS
# on /dev/sdc1
title Microsoft Windows XP Professional
root (hd2,0)
savedefault
makeactive
map (hd0) (hd2)
map (hd2) (hd0)
chainloader +1





Besides that, I found some comments to make both raid disks bootable but they don't work... I suppose because of my /boot partition... this is what I should type:


mount /dev/md0 /mnt #I don't do this
chroot /mnt #I do chroot /boot but I have no sh!!!
grub
device (hd0) /dev/sda #this doesn't work either... device doesn't exist.
root(hd0,0)
setup(hd0)
device(hd1) /dev/sdb
root(hd1,0)
setup(hd1)
quit


Ok, that's it up to now. Hope someone can help me!!!! Thanks a lot.

fede.

[fedesuarez]

Ok... I found the problem about booting with the HD running windows. I fixed it with a win98 boot disk and typing the magic words: fdisk /mbr. So, grub configuration was ok.

I think that a possible explanation to the problem is that somehow, the first time I tried to install X on ubuntu server everything crashed and corrupted my disks... that time I did: apt-get install x-window-system-core xserver-xorg gnome-core. (instead of apt-get install ubuntu-desktop)
It seems that it couldn't managed the raid and ubuntu didn't boot anymore, so I re-installed everything but the HD running windows got any problem in the mbr.

Well, I'm still wondering how to boot up my raid with any disk... Can someone help me?

fede.