Need grub interface -- define specifics

[Bryan J. Smith]

ndbecker2 at verizon.net wrote:  
> I found it was very difficult to find information on how to repair this. 
> The grub info itself has lots of detail, but is remarkably short on basic
> howto.
> Anyway, what Fedora can really use is a way to rerun grub-install, possibly
> with changed parameters.
> I am a highly experienced user, but I have to do grub-install just
> infrequently enough that it's always a major PIA to dig up the info on how
> to do it.

>From my understanding, this is caused by differences in BIOS disk number
to Linux disk device mappings.  It's difficult to compensate for this issue
automatically, regardless of LILO or GRUB.

Maybe there is a way to automatically extract the BIOS disk number and then
re-create the mapping file.  But when do you do it?  Sometimes people just
swap disks once, but should it be run automatically then?

Detail what it _should_ do _exactly_ and then I can better tell you if it is
feasible or not.

-- Bryan

P.S.  The only alternative is to do what Windows does.  Have a "dumb" MBR
boot the "active" primary partition on BIOS disk 80h, and _hope_ there is a
driver for it in the root C:\.  Heck, XP doesn't even let you change ATA
drivers.  I had to hack the registry manually once to do this when I changed
a mainboard (after a SiS chipset mainboard blew and a ViA chipset mainboard
was put in -- not good when you're 1,100 miles from home with 1 computer ;-).


-- 
Bryan J. Smith, E.I. -- b.j.smith at ieee.org