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basm alah alrahman alrahim
I just asked the same question at ask.ubuntu and I get the following answer :
I started to make a partition by using the following command:
$ sudo fdisk /dev/sdb
I used fdisk command parameters (or sub commands ) to make a partition /dev/sdb6 [ extended partition ]
Then I made a mount point by using the following commands:
$ sudo mkdir /mnt/Rescue
$ sudo mount /dev/sdb6 /mnt/Rescue
$ sudo chmod +rwx /mnt/Rescue
I then made a menu entry at /etc/grub.d/40_custom file with the following entries
menuentry "Ubuntu-12.04-ISO" {
set isofile="/ubuntu-12.04-desktop-i368.iso"
loopback loop (hd1,6)$isofilelinux
(loop)/casper/vmlinuz.efi boot=casper iso-scan/filename=$isofile noprompt noejectinitrd
(loop)/casper/initrd.lz }
Note: I am using2 hard disks1st one with /dev/sda and the2nd with /dev/sdb