wrong hdX designation in grub.cfg

[Chris Murphy]

A normally working grub.cfg contains this entry:

          search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt4 
--hint-efi=hd0,gpt4 --hint-baremetal=ahci0,gpt4  
d7bc9d0e-7706-44f9-b1a7-ff24b7c360a7

hd0,gpt4 seems to be wrong. At a grub prompt, there is one hd0 entry, and 
multiple hd1,gptY entries. These correspond to the partitionless Firewire 
drive, and the internal drive respectively. It seems like the firmware presents 
the Firewire drive to grub first and therefore is hd0 in grub. But once booted 
to linux, the internal drive ends up being treated as hd0 by grub-mkconfig.

Firmware bug? Or grub bug?

Chris Murphy