Hi Xavier, and thanks! On Mon, Apr 15, 2019 at 09:16:29AM +0200, Xavier Bestel wrote: >FWIW the log during the latest upgrade attempt was a bit more verbose, >here it is: > >Setting up shim-signed (1.28+nmu3+0.9+1474479173.6c180c6-1) ... >Installing for x86_64-efi platform. >grub-install: warning: efivarfs_get_variable: >open(/sys/firmware/efi/efivars/blk0-47c7b225-c42a-11d2-8e57-00a0c969723b): No >such file or directory. >grub-install: warning: efi_get_variable: ops->get_variable failed: No such >file or directory. >grub-install: warning: is_gpt_valid: GUID Partition Table Header signature is >wrong: 8e7c00bcd08ec033 != 5452415020494645: Invalid argument. >grub-install: warning: is_gpt_valid: GUID Partition Table Header signature is >wrong: 4441454856495250 != 5452415020494645: Invalid argument. >grub-install: warning: msdos_disk_get_extended_partition_info: extended >partition info is not supported: Function not implemented. >grub-install: warning: msdos_disk_get_partition_info: could not get extended >partition info: Function not implemented. >grub-install: warning: get_partition_info: neither MBR nor GPT is valid: >Function not implemented. >grub-install: warning: make_hd_dn: could not get partition info: Function not >implemented. >grub-install: warning: efi_va_generate_file_device_path_from_esp: could not >make HD() DP node: Function not implemented. >grub-install: warning: efi_generate_file_device_path_from_esp: could not >generate File DP from ESP: Function not implemented. >grub-install: error: failed to register the EFI boot entry: Function not >implemented. >dpkg: error processing package shim-signed (--configure): > installed shim-signed package post-installation script subprocess returned > error exit status 1 >Errors were encountered while processing: > shim-signed
Wow, your system really does not do want to do UEFI variables. Just to check - you're using a Debian kernel, yes? Could you check what the system says about UEFI at boot as well, please? -- Steve McIntyre, Cambridge, UK. st...@einval.com "Because heaters aren't purple!" -- Catherine Pitt