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Re: Booting win98 from an extended partition
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From: |
Jochen Hoenicke |
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Subject: |
Re: Booting win98 from an extended partition |
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Date: |
Fri, 12 Jan 2001 14:30:43 +0100 (MET) |
On Jan 12, OKUJI Yoshinori wrote:
> From: "Ingo Korb" <address@hidden>
>
> > By the way, I just checked the in-memory image of the Win9x boot sector
> > after it is loaded by the OS/2 boot manager. It seems that the BM does
> > the same as the patch you sent me, but additionally it sets the byte
> > at offset 0x25 to 0x85 (from 0x00) - does that byte even have a
> > documented function?
>
> No. The byte is reserved, AFAIK.
0x24-0x27 is the 32 bit fat length for FAT32 in case the 16 bit
fat_length at 0x16 is zero. Maybe the windows boot sector just copies
the fat_length to have it always in the same space.
Jochen