Arch Linux

xer01ne

Member

Registered: 2011-02-28

Posts: 46

Booting ISO from Grub2 without Loopback support

I am trying to boot an archlinux install ISO from grub2 menu, but I have no loopback support.  I am not sure how I got to this point, but I installed Ubuntu first (just to test out the system and make sure that UEFI works fine.  Then I booted the ISO file just fine, (I used grub-config to modify the bootup).  During the install, I used cgdisk to redo my partition tables.  After that, cgdisk said something about the partitions not taking effect until I rebooted... after reboot, I now get the grub console and nothing else.  UEFI bios will not allow booting USB, so the only way I can do this is via this grub console.

The only things I did were; create a new partition at the end of the drive to store my ISO file and mkfs.ext4 /dev/sda2... The UEFI partition is still intact from ubuntu (i did not format that one).

I tried following this guide, http://wiki.grml.org/doku.php?id=rescueboot ,but it wasn't successful.

insmod part_msdos
insmod ext2
set root='(hd0,4)'
linux /arch/boot/x86_64/vmlinuz boot=live findiso=/archlinux-2014.01.05-dual.iso toram
initrd /arch/boot/x86_64/archiso.img

When I try to set the linux variables, i get an error that says /arch/boot/x86_64/vmlinuz cant be found.

I tried putting a livecd onto a usb drive, but when I get all of the parameters set and type boot, it just reboots the machine and goes right back to the grub console. 

Any help would be greatly appreciated.

WonderWoofy

Member

From: Los Gatos, CA

Registered: 2012-05-19

Posts: 8,414

Re: Booting ISO from Grub2 without Loopback support

I really don't understand why you would go find some random guide and not check our wiki.

xer01ne

Member

Registered: 2011-02-28

Posts: 46

Re: Booting ISO from Grub2 without Loopback support

That is where I started initially, however, the grub2 console doesn't have loopback support.  (therefor I can't use the loopback command.)