cvs commit: src/sys/boot/i386/boot0 boot0.S

Andre Oppermann andre at freebsd.org
Thu Apr 21 15:53:36 PDT 2005


Warner Losh wrote:
> 
> > On Thu, Apr 21, 2005 at 09:00:26PM +0200, Dag-Erling Smørgrav wrote..
> > > Wilko Bulte <wb at freebie.xs4all.nl> writes:
> > > > On Thu, Apr 21, 2005 at 03:42:28PM +0000, David E. O'Brien wrote..
> > > > >   Log:
> > > > >   MFC: rev 1.14: remove type 0x4 (FAT12 <32MB) to make room for type 0x7 (NTFS).
> > > > As a matter of curiosity, how does this impact people with minimal FreeBSD
> > > > systems running out of (granted...) very small flashroms for example?
> > >
> > > Last I checked, you can't boot FreeBSD off a FAT partition.
> >
> > Eh um..  <runs to the fridge for a beer>
> 
> But DOS will boot from a FAT partition.  Scott is right that this
> changes changes the DOS to ??? in that case...

As usual we seem to spend to much time on non-issues...  So here I am ;-)

On very small flashes with FAT12 on them you probably don't have multi
boot capabilites very simply for space reasons.  On larger flashes/disks
you will have multi boot here or there but you won't have FAT12 on that
partition because it too big for it.  99.9999% chance you have FAT16 or
FAT32 on those.

Final words: This changs affects not one living soul.

[Maybe it does after all.  There is a very high probablility that BDE
 has got an old i386SX16 with an MFM/RLL controller and a 20MB disk
 somewhere running buildworld -j16 in enless loops while measuring
 interrupt latency with WITNESS enabled and testing different assembler
 versions of bcopy on it and dual booting to DOS from time to time to
 run some bad sector marker program]  ;-)

-- 
Andre


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