Michael Reed wrote:
What are the various protocols in use for booting from GPT partitions
on BIOS systems? Trying to standardize on one could be a "good thing".
So far, the only supported protocol is to have the bootable partition(s)
present inth the MBR. Data-only partitions can be present in the GPT only.
This works with Windows as well as existing Linux bootloaders, but does
not support booting from > 2 TB, obviously.
My thoughts immediately come to this as one possibility. Use the GPT PMBR
to define a bootable paritition and reserve the rest of the disk. I know
that isn't the spec, but for linux one could use the "gpt" kernel command
line option to override the test for a valid PMBR. This non-standard usage
of the PMBR is likely only an issue on EFI based systems, and those wouldn't
require the hack....
This is what Windows requires, with the slight exception that I think it
wants the partition present in *both* the MBR and GPT. Could be wrong.
-hpa
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