Hadders wrote:
Tim wrote:
On Sun, 2006-12-17 at 11:29 +0900, Hadders wrote:
Okay, so Grub clearly upset Vista by "switching"/"hiding" things.
The hide option modifies the partition tables on the drive - changing
the partition *type* from one that the system might read, to a hidden
type. Perhaps your other OS didn't like the type?
I'm not sure of the value of hiding a partition. It shouldn't be
necessary for booting from another drive. You should just be able to
select the drive to boot from. If you find some things insist that they
must be on drive 0 when they're on drive 1, there's the map option to
pretend they're plugged in the other way around.
map (hd0) (hd1)
map (hd1) (hd0)
(If I recall correctly... Consult the grub info file to be sure.)
wicked! that's fixed the Vista problem too.
A quick scan of the device with fdisk showed that it has a "hidden NTFS
partition", changing it back to "7" HPFS/NTFS and voila, I'm back in
business, now I understand what Grub did.
Thanks heaps!
Now, the question is what does the map command do? just a memory swap?
or something actual?
Thanks
There are hexadecimal codes which drive 0 and drive 1 use for drive
recognition through BIOS. The command does what it says and switches the
identity so the OS sees hd0 as hd1 and hd1 as hd0.
Someone might have a more technical explanation.
Jim
--
Computers can figure out all kinds of problems, except the things in
the world that just don't add up.
