William Case wrote:
You need to contact the people who wrote Grub. They are experts and
can help you. My interest in Grub is way up the food train. I want to
understand how to write things in grub.conf that do what I want. It is
the other end of Grub.
As a result of the ongoing GRUB discussion, I have been trying to trace
the use of GRUB from BIOS to the end of GRUB stage 2. I am particularly
interested in seeing how the MBR is used.
I can create a temporary copy of my MBR using:
# dd if=/dev/sdX of=/tmp/sda-mbr.bin bs=512 count=1
My question is; what program should I use to read this file in a human
meaningful way (hexdump??)? I am trying to see how the MBR names
partitions; and how GRUB uses those names. That is, are the partitions
named in MBR actually named hd0,0 (ie the binary or hex equivalent of
hd0,0) etc. or is there a further translation step required by GRUB?
Does the device/partitioning system used by MBR and GRUB have a name(s)?
(For Internet search purposes).
I am interested in the hardware/software interface of booting. Is there
anything additional I should know about this partition-locating process?
Karl F. Larsen, AKA K5DI