On Fri, 20 Mar 2020, Richard Henwood wrote:

Hi All,

I have Ubuntu installed from Dmitri's installer. update-grub2 works well from that OS. I now have Fedora Rawhide in a separate partition and I would like to do have Fedora take over efi management. I have read through a bit about EFI management on Linux and it looks like efibootmgr is the primary tool.

Using efibootmgr from both Ubuntu 19.10 and Fedora Rawhide and I get identical errors:

$ efibootmgr -c -d /dev/sda -p 1 -l \EFI\fedora\grubaa64.efi -L skipping unreadable variable "Boot0000": Invalid argument Could not prepare Boot variable: Invalid argument

Does anyone have a suggestion for the next steps for me to try?

From my notes:

- ISSUE: Laptop F/W does not allow boot order/image updates - LOG: https://paste.ubuntu.com/p/fPd5WhFC5N/ - ERROR MSG: "Skipping unreadable variable "Boot0000": Invalid argument" - WORKAROUND: Using '--removable' flag prevents attempted update - ISSUE: This is not a reliable solution - SOLUTION: Use '--no-nvram' flag during grub-efi-arm64 package's postinst

Also:

https://github.com/aarch64-laptops/grub/commit/5b387fea63fac82352831b722bd7d... https://github.com/aarch64-laptops/grub/commit/a6538ffdd9cc79599ca32cf4be372...

Hi Ard,

Yes, I'm running as root. Lee's guidance on --no-nvram seems to open a new avenue of exploration, but happy to hear other suggestions...

r,

On Fri, 2020-03-20 at 14:52 -0400, Ard Biesheuvel wrote: hello Richard,

are you running it as root?

On Fri, Mar 20, 2020, 11:26 Richard Henwood <Richard.Henwood@arm.commailto:Richard.Henwood@arm.com> wrote: Hi All,

I have Ubuntu installed from Dmitri's installer. update-grub2 works well from that OS. I now have Fedora Rawhide in a separate partition and I would like to do have Fedora take over efi management. I have read through a bit about EFI management on Linux and it looks like efibootmgr is the primary tool.

Using efibootmgr from both Ubuntu 19.10 and Fedora Rawhide and I get identical errors:

$ efibootmgr -c -d /dev/sda -p 1 -l \EFI\fedora\grubaa64.efi -L skipping unreadable variable "Boot0000": Invalid argument Could not prepare Boot variable: Invalid argument

Does anyone have a suggestion for the next steps for me to try?

best regards, Richard

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