On Fri, Feb 22, 2008 at 10:37:29AM -0800, H. Peter Anvin wrote: > Robert Millan wrote: > >On Thu, Feb 21, 2008 at 03:57:03PM -0800, H. Peter Anvin wrote: > >>Is there any specification for this? > >> > >>This seems like a specific boot GUID, but is there any documentation as > >>to handover protocols, cross-OS support, etc; or is this a "Grub2-only > >>standard"? > > > >GRUB goes its own way, just like on DOS labels, and extends this with info > >about which drive contains /boot/grub/, etc. Otherwise, it can work the > >same > >as on "standard" MBRs for DOS labels (same entry point, etc). > > > >You might be interested in: > > > > http://aybabtu.com/mbr-gpt/ > > > >So, setting the "boot_bios" flag on GPT is essentially the same thing as > >setting the "bootable" flag on a DOS label. > > > > Yuck, this is a total mess. It's not a "bootable" flag, then, it's a > "I'm Grub" flag.
Not really. For example, you can do: grub-install /dev/sda3 # this won't touch your MBR! dd if=mbr-gpt of=/dev/sda and it works. There's nothing GRUB-specific in it; the MBR just loads the first sector of /dev/sda3 at 0x7c00, sets appropiate %dl register and jumps to it. As long as the code in /dev/sda3 knows what to do on GPT, everything should be fine. -- Robert Millan <GPLv2> I know my rights; I want my phone call! <DRM> What use is a phone call… if you are unable to speak? (as seen on /.) _______________________________________________ parted-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/parted-devel
