Hey all, Trying to be a helpful chap, I looked into a verbosity level 2 (-v2) output of efibootmgr, which is what's executed by the post-installation script of the grub-efi-amd64-signed package:
$ sudo efibootmgr -v2 -c -d /dev/sdb -p 2 -w -L ubuntu -l \EFI\ubuntu\shimx64.efi Could not prepare Boot variable: Invalid argument error trace: util.h:325 get_file(): could not open file "/sys/devices/pci0000:00/firmware_node/uid" for reading: No such file or directory util.h:325 get_file(): could not open file "/sys/devices/pci0000:00/firmware_node/uid" for reading: No such file or directory util.h:325 get_file(): could not open file "/sys/devices/pci0000:00/firmware_node/uid" for reading: No such file or directory efivarfs.c:435 efivarfs_set_variable(): writing to fd 3 failed: Invalid argument lib.c:76 _efi_set_variable_mode(): ops->set_variable() failed: Invalid argument efibootmgr.c:323 make_var(): efi_set_variable failed: Invalid argument efibootmgr.c:333 make_var(): Could not set variable Boot0005: Invalid argument ...and I submit that this is likely caused by the bug in the efivar package documented as recently fixed at https://github.com/rhboot/efivar/issues/120, as it talks about the fact that the uid node doesn't exist, only hid and cid (in my case, Ubuntu 19.04 on a HP Probook 6550b with kernel 5.0.0-21-generic, it's hid only). I have libefivar1 version 37-2 installed. ** Bug watch added: github.com/rhboot/efivar/issues #120 https://github.com/rhboot/efivar/issues/120 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1826050 Title: package grub-efi-amd64-signed 1.115+2.02+dfsg1-12ubuntu2 failed to install/upgrade: installed grub-efi-amd64-signed package post- installation script subprocess returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1826050/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
