https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249320
Bug ID: 249320
Summary: UEFI boot fails without EFI variables set
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
We previously installed boot1.efi as EFI/boot/bootx64.efi in the ESP (on
amd64), later changing to installing EFI/freebsd/loader.efi and setting EFI
variables to make that bootable. Although this change is correct, it introduces
some new boot failure cases.
I encountered this just now, after a failed laptop mainboard. After the tech
replaced the mainboard FreeBSD did not boot from the NVMe device as the EFI
variables did not make it to the nvram on the new board.
For greenfield ESP installations perhaps we can install loader.efi also as
EFI/boot/bootx64.efi, or install a startup.sh that loads
EFI/freebsd/loader.efi.
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