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From: "Rodney W. Grimes" <rgrimes@GndRsh.aac.dev.com>
Message-Id: <199611241959.LAA00651@GndRsh.aac.dev.com>
Subject: Re: 2.2-ALPHA install failure
In-Reply-To: <199611241853.AA130971631@hpnmhjw.sr.hp.com> from Darryl Okahata at "Nov 24, 96 10:53:50 am"
To: darrylo@sr.hp.com
Date: Sun, 24 Nov 1996 11:59:10 -0800 (PST)
Cc: jkh@time.cdrom.com, current@freefall.freebsd.org
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> > > Humm... let me see... if I get this right (I don't use sysinstall, but
> > > I have seen this X/1/1 translation thing it does) sysinstall defaults to
> > > a X/1/1 translation, and even goes so far as to write that into the
> > > MBR on a ``dangerously dedicated'' install.
> > 
> > This was what phk recommended as proper "hint" values for libdisk in
> > the dangerously-dedicated case.  What would you suggest instead?
> 
>      How about the values of "historical_bogus_partition_table", as
> given in sys/i386/isa/diskslice_machdep.c?
> 
> 	The data for partition 3 is: 
> 	sysid 165,(FreeBSD/NetBSD/386BSD) 
> 	    start 0, size 50000 (24 Meg), flag 80 
> 	       beg: cyl 0/ sector 1/ head 0; 
> 	       end: cyl 1023/ sector 63/ head 255 
                                     ^^ bogus (ie this means 62 sectors!!)
> 

I would like to also see that corrected/changed to:
 	The data for partition 3 is: 
 	sysid 165,(FreeBSD/NetBSD/386BSD) 
 	    start 0, size 2097152 (1024 Meg), flag 80 
 	       beg: cyl 0/ sector 1/ head 0; 
 	       end: cyl 1023/ sector 32/ head 63
 

Or atleast make size == cyl * sec * head  (ie 1024*64*255 == 16711680)
my reasoning is that any third party fdisk program that sees the current
bogus table likes to try and ``fix it'' and usually ends up doing quite
the wrong thing : -(.

--
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation, Inc.                   Reliable computers for FreeBSD