The first step is to look at the menu.lst and see what drive is listed. Check both the current disk and the mirror.
Doesn't seem to have any drive listed except the Windows partition
title Ubuntu 9.04, kernel 2.6.28-11-generic
uuid 4a1a1f31-cbeb-4329-8eaa-92a8d6ff72a2
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=4a1a1f31-cbeb-4329-8eaa-92a8d6ff72a2 ro quiet splash
initrd /boot/initrd.img-2.6.28-11-generic
quiet
title Ubuntu 9.04, kernel 2.6.28-11-generic (recovery mode)
uuid 4a1a1f31-cbeb-4329-8eaa-92a8d6ff72a2
kernel /boot/vmlinuz-2.6.28-11-generic root=UUID=4a1a1f31-cbeb-4329-8eaa-92a8d6ff72a2 ro single
initrd /boot/initrd.img-2.6.28-11-generic
title Ubuntu 9.04, memtest86+
uuid 4a1a1f31-cbeb-4329-8eaa-92a8d6ff72a2
kernel /boot/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/sda1
title Windows NT/2000/XP (loader)
root (hd0,0)
savedefault
makeactive
chainloader +1
You can add an additional entry in the mirror to point to the real disk, also change the default to be something else and a long time until it boots that OS, so that you are aware of what it is doing.
i'm not sure to understand how to do this, im quit new with linux
When you boot into the mirror, what is the real disk named? (from root you can do "fdisk -l" to list all the partitions).
Master diskDisk /dev/sda: 500.1 GB, 500107862016 bytes
Disk identifier: 0xd6ded6de
Device Boot Start End Blocks Id System
/dev/sda1 * 1 40544 325669648+ 7 HPFS/NTFS
/dev/sda2 40545 60801 162714352+ 5 Extended
/dev/sda5 40545 59974 156071443+ 83 Linux
/dev/sda6 59975 60801 6642846 82 Linux swap / Solaris
Clone diskDisk /dev/sdb: 500.1 GB, 500107862016 bytes
Disk identifier: 0x7281076d
Device Boot Start End Blocks Id System
/dev/sdb1 * 1 40544 325669648+ 7 HPFS/NTFS
/dev/sdb2 40545 60801 162714352+ 5 Extended
/dev/sdb5 40545 59974 156071443+ 83 Linux
/dev/sdb6 59975 60801 6642846 82 Linux swap / Solaris
USB disk Disk /dev/sdc: 320.0 GB, 320072933376 bytes
Disk identifier: 0x000decdf
Device Boot Start End Blocks Id System
/dev/sdc1 1 22403 179952066 7 HPFS/NTFS
/dev/sdc2 22404 38912 132608542+ f W95 Ext'd (LBA)
/dev/sdc5 22404 38912 132608511 7 HPFS/NTFS
Someone just suggested me to use the following command
sudo tune2fs -U random /dev/sdb1