On Thu, 19 Sep 2019, Jerry Geis wrote:
I installed my first UEFI disk yesterday. Seemed to go fine. CentOS 7.6
x86_64
I then took that disk "out" of that machine and put it another machine - it
seems to not even boot.
I put the original disk back in that machine and it boots fine.
I put the UEFI disk back in the machine I built it on and it works fine.
They are similar machines either and i3 and i7.
Shouldn't that work? Build a UEFI disk on machine A - move it to machine B?
I think the issue is that the UEFI firmware doesn't know which UEFI boot loader
to load. I think this should help:
https://noobient.com/2017/09/27/fixing-the-efi-bootloader-on-centos-7/
Boot into rescue mode, and run:
efibootmgr --create --label CentOS --disk /dev/sda1 --loader
"\EFI\centos\shim.efi"
I think you then should end up in a happy place. You can probably add that
entry by hand within the UEFI config itself.
HTH,
jh
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