On Wed, 2005-07-27 at 10:51 -0600, lin q wrote:
> MBR refers to the very 1st sector in 1st cylindar on 1st head and 1st track 
> whatsoever, so there is only 1 MBR in one disk. And if we think about GRUB 
> case, it has 2 part boot code, stage1 and stage2.
> 
> Stage 1 is in MBR together with the partition table. Stage 2 actually does 
> not matter whether it is in an active partition, is that right? Because 
> inside Stage1 there is some "hard link" pointer linking to stage 2, so stage 
> 2 can always be loaded.
> 
> If the above flow is correct, then "Active partition" does not role in 
> booting.

What you say makes sense, but to be honest you have gone beyond my
understanding of the boot process.  All I know is that if I do not
specify as active the partition that I want to boot, BIOS reports that
it cannot find a boot device.  This is true regardless of whether the
drive in question is fully Linux, fully Winduhs, or dual-boot.

-- 
Peter B. Steiger
Cheyenne, WY


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