Robert Heller wrote:
At Tue, 29 May 2018 06:47:06 -0700 CentOS mailing list centos@centos.org wrote:
On 05/29/2018 06:33 AM, Robert Heller wrote:
The UUID in the EFI boot options is 99E275E7-75A0-4B37-A2E6-C5385E600CB, which does not to match anything, but the system is only happy booting the old disk...
And at this point, it will only boot in legacy mode off the old disk.
That's what I meant, I think.'?'? Legacy mode is BIOS-compatible.'?'? If you're booting in legacy mode, you can't access the UEFI variables. The old disk probably has GRUB installed on the first block.'?'? It might be booting in legacy mode *because* the UEFI boot option's UUID doesn't match your partition.
OK, I think at this point it is not wanting to even boot the old disk in EFI mode. Maybe because the old disk is no longer in SATA port 0
(/dev/sda).
It is not wanting to boot the new disk in EFI mode and won't boot from the Optical disk in EFI mode (at least I cannot figure out how to do that).
<snip> Y'know, what you just wrote above... that makes it sound like you need to go into the BIOS and reset the boot order.
mark