Ubuntu
shim package

  1. Bug #1624096
  2. Comment #11

Comment 11 for bug 1624096

Revision history for this message
Jason Gerard DeRose (jderose) wrote :

@Mathieu - I've been doing some quick experiments with fallback.efi on the ISO, and I'm not sure that alone will fix things.

The problem is that when fallback.efi is present, the installer isn't launching. Instead, OVMF tries to PXE boot (which in my test environment fails because I don't have the needed DHCP/TFTP setup), then OVMF falls back to Shell>

I tried adding /EFI/BOOT/fallback.efi to both the latest Yakkety daily ISO and the 16.04.1 ISO. In both cases, the installer doesn't boot, I end up at Shell>

So although fallback.efi can work around the X64 Exception in the Yakkety version of shim, it still doesn't give you a bootable installer. If there's something obvious I'm missing, please let me know!

Also, do you have any idea why this faulty shim code path is taken when running under QEMU + OVMF, but does not seem to be taken when running on physical hardware?