[NTLUG:Discuss] questions about intalling Grub and MBR

Chris Cox cjcox at acm.org
Thu Apr 19 00:32:08 CDT 2007


terry wrote:
> You have 2 logical choices:
> 
> 1) Have the bootloader write to MBR of each separate drive as you add
> new drives and install new OS's on subsequent drives.  (Modern
> computers have BIOS options to designate [any] drive to boot to, and
> that's what you'll do to select which OS to boot [in this case].)

Be careful here.  While you may be able to boot a particular drive
it doesn't mean necessarily that the driver ordering rearranged.
You can use a grub option however to force the hex id to be
that of the "primary" drive.

> 
> 2) Overwrite sda's MBR  with new grub installation with each new
> install and just keep including boot instructions for previous
> installations.
> 
> Choice #2 is best / easiest but the choice is yours.

I like #2 better as well.  #1 can be very very confusing.



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