Bug#1004126: memtest86+.iso does not boot from USB
On Fri, Jan 21, 2022 at 02:33:44PM +0100, Michael Prokop wrote:
> * Marc Haber [Fri Jan 21, 2022 at 01:03:13PM +0100]:
> > I tried dd'ing the memtest86+.iso to two differen USB sticks. Both don't
> > boot on two different older ThinkPad Notebooks (one T520 and one X121e)
> > - the systems just fall back to the Boot Menu. The Free-as-in-Beer
> > memtest.iso from memtest86.com works fine on both boxes.
>
> I suppose your system runs with EFI, while memtest86+ needs 16-bit
> boot and doesn't work with EFI systems, AFAIK.
memtest86+.elf on the same system runs fine if booted from an USB stick
with grub-pc (not grub-efi). Is that a possible indication that the
system doesn't run with EFI? I'd like to keep it running until tomorrow.
Greetings
Marc
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