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is it possible to update grub from Windows? or is it enough to disable secure boot, boot Linux, upgrade, reenable?
by pas 2y ago
is it possible to update grub from Windows? or is it enough to disable secure boot, boot Linux, upgrade, reenable?
- dwattttt 2y agoI wouldn't try update grub from Windows, but the second strategy would work.
- zokier 2y agoI don't see why you couldn't update grub from Windows, its just EFI binary in ESP after all.
- mjg59 2y agoDistro grub is signed by the distro rather than Microsoft, so coordinating that would be extremely difficult
- ab71e5 2y agoWhy? You could just copy the binary and signature to your EFI partition from Windows? What am I missing here?
- cesarb 2y agoFrom what I understood, the parent's question is not about Microsoft updating grub; it's about a person hit by the bug, and thus in a situation where Windows boots but Linux doesn't, using Windows to copy the correct file (probably extracted from an updated package from the Linux distribution they're using) to the correct place in the EFI partition by hand. (The first obstacle would be that AFAIK the EFI isn't mounted by default on Windows, but I believe it should not be hard to tell Windows to mount it and give it a drive letter.)
- zx8080 2y agoMS could just sign it with whatever three-letter agency certificate they usually cooperate with. /s