On Thu, Jan 06, 2011 at 11:11:15AM -0500, Phillip Susi wrote: > IIRC, EFI provides filesystem IO support,
Only for filesystems EFI supports, which is typically a much smaller range than GRUB. You're basically only guaranteed to get FAT, and as far as I can tell it's only designed for reading from EFI System Partitions or the equivalent. > so I was wondering: does grub-efi use the EFI file IO calls, or does > it still use its built in partition and fs parsing modules, and only > rely on EFI for the low level disk block IO? GRUB uses its own partition and file handling. > It seems like you would want to build the grub fs modules as EFI drivers > to extent the entire EFI system if needed, and rely on EFI for file IO. It doesn't seem worth it given the extremely limited scope of the EFI File Protocol. It would be substantial work for little benefit, and GRUB's own drivers probably work better for reading from general filesystems anyway. -- Colin Watson [cjwat...@ubuntu.com] _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org http://lists.gnu.org/mailman/listinfo/grub-devel
