Bug#1031183: grub-installer: postinst fails if efivarfs cannot be mounted

[Roland Clobus]

Control: affects 1039710 grub-installer

Hello Arnaud,

This looks to be very similar that I reported in the first part of https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1039710

On BIOS-boots the EFI /sys mount is not present.

With kind regards,
Roland Clobus

On 12/07/2023 16:30, Arnaud Rebillout wrote:

The postinst still fails at this point. The error can be reproduced from the console:

   mkdir -p /target/sys/firmware/efi/efivars




Do you want me to submit a patch?

  mkdir: can't create directory '/target/sys/firmware/efi': Operation not permitted I suppose the mkdir call must also be allowed to fail when fstype is efivarfs (following the same logic that is already used for mount). NB: the issue only affects a BIOS VM. If I boot a UEFI VM, everything works fine.

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