At Tue, 29 May 2018 06:47:06 -0700 CentOS mailing list <centos@xxxxxxxxxx> 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). > > You might want to disable legacy mode entirely. Boot a rescue disk if > needed, and fix the boot option from there. > _______________________________________________ > CentOS mailing list > CentOS@xxxxxxxxxx > https://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Custom Software Services http://www.deepsoft.com/ -- Linux Administration Services heller@xxxxxxxxxxxx -- Webhosting Services
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