I think your askubuntu is a BIOS based install of Windows 8, not a secure boot UEFI install.
There is a bug on locked efi partitions and no good solution. I have not looked lately but bug report...
Type: Posts; User: oldfred; Keyword(s):
I think your askubuntu is a BIOS based install of Windows 8, not a secure boot UEFI install.
There is a bug on locked efi partitions and no good solution. I have not looked lately but bug report...