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power270 · 2016-03-10, 02:05

Any way I can boot ISOs in an EFI firmware. I wanted to boot dban and/or memtest.

SebastianRoth · (This post was last modified: 2016-03-10 08:21 by SebastianRoth.)

(2016-03-10 02:05)power270 Wrote: Any way I can boot ISOs in an EFI firmware. I wanted to boot dban and/or memtest.

Sure... There are numerous examples on how to boot an ISO from iPXE. Start looking for

Code:

chain memdisk iso...

Or you can extract the ISO and boot the kernel/initrd directly. As well a lot of examples available.

The more interesting question: Is iPXE working on your EFI firmware device? iPXE does actually run on a lot of new UEFI machines that I've tried. Even tablets and such. Just give it a try!

power270 · (This post was last modified: 2016-03-10 17:36 by power270.)

I'm booting iso's in BIOS iPXE using chaining with no issues, but its not working in EFI mode. iPXE loads my menu, but errors on memdisk.

Could not boot: Exec format error http://ipxe.org/2e008081

:MemTest
initrd /boot/iso/memtest.iso
chain /boot/x64/memdisk iso raw
boot || goto failed

***NiKiZe*** · (This post was last modified: 2019-02-15 22:29 by NiKiZe.)

Image booting uses INT13 which is BIOS only.
EFI have other mechanisms~~, however that is not implemented yet in ipxe~~.

First of you should as much as possible extract kernels etc instead of loading isos, for memtest, there is even memtest.0 which is a NBP and can return to ipxe when done instead of rebooting.

but memtest is legacy only and can never run in a efi environment.

dban can run the kernel directly, _if_ it is compiled with EFI_STUB enabled.

Update: http://forum.ipxe.org/showthread.php?tid...4#pid13194