[Git-commits] [grml/grml-debootstrap] d0540c: Improve EFI detection by checking for /sys/firmwar...

[Michael Prokop]

  Branch: refs/heads/mika/efi
  Home:   https://github.com/grml/grml-debootstrap
  Commit: d0540ca80b3c17a0d70e39916f189eec8b8ed9ee
      https://github.com/grml/grml-debootstrap/commit/d0540ca80b3c17a0d70e39916f189eec8b8ed9ee
  Author: Michael Prokop <mika at grml.org>
  Date:   2020-10-02 (Fri, 02 Oct 2020)

  Changed paths:
    M grml-debootstrap

  Log Message:
  -----------
  Improve EFI detection by checking for /sys/firmware/efi

It might be possible that we can load the efivars module, while
/sys/firmware/efi still doesn't exist and efibootmgr then fails
to execute.

We noticed this on Hetzner's Dell PowerEdge™ R6515 DX181 server,
which was booted in BIOS mode via PXE, while the hardware itself
is EFI capable. Loading the efivars module worked there, but
invoking efibootmgr then fails, and the resulting system isn't
bootable.

Thanks: Darshaka Pathirana for reporting and feedback