pxeloader problem: BTX halted

[Lawrence Farr]

Just to add a "Me Too", I can swap back to a 5.2 pxeboot to get any of my
systems to boot, but recent builds give a BTX halted error. I have no idea
when it stopped working though.

Lawrence Farr
EPC Direct Limited  

> -----Original Message-----
> From: owner-freebsd-current at freebsd.org 
> [mailto:owner-freebsd-current at freebsd.org] On Behalf Of Ruslan Ermilov
> Sent: 27 February 2004 08:07
> To: Brooks Davis
> Cc: Bjoern A. Zeeb; current at FreeBSD.org; John Baldwin
> Subject: Re: pxeloader problem: BTX halted
> 
> On Thu, Feb 26, 2004 at 05:22:33PM -0800, Brooks Davis wrote:
> [...]
> > This commit broke PXE booting:
> > 
> > -----
> > ru          2004/02/09 06:11:58 PST
> > 
> >   FreeBSD src repository
> > 
> >   Modified files:
> >     sys/boot/i386        Makefile.inc
> >     sys/boot/i386/boot0  Makefile
> >     sys/boot/i386/boot2  Makefile
> >     sys/boot/i386/btx/btx Makefile
> >     sys/boot/i386/btx/btxldr Makefile
> >     sys/boot/i386/btx/lib Makefile
> >     sys/boot/i386/cdboot Makefile
> >     sys/boot/i386/kgzldr Makefile
> >     sys/boot/i386/loader Makefile
> >     sys/boot/i386/mbr    Makefile
> >     sys/boot/i386/pxeldr Makefile
> >   Log:
> >   - Factor out -nostdlib to an upper level Makefile.inc.
> >  
> >   - Now that bsd.prog.mk deals with programs linked with -nostdlib
> >     better, and has a notion of an "internal" program, use PROG
> >     where possible.  This has a good impact on the contents of
> >     .depend files and causes programs to be linked with cc(1).
> > 
> >   XXX: boot2 couldn't be converted as it's actually two programs.
> > 
> >   Tested on:      i386, amd64
> > -----
> > 
> > I verified this with a binary search using perforce syncing 
> against a
> > local checkout of //depot/vendor/freebsd/src/.  At 2004/02/09:06:15
> > pxeldr works.  At 2004/02/09:06:16 it dies.  The only files 
> that change
> > in this time frame are these files in sys/boot.
> > 
> > Specifically the problem is rev 1.73 of 
> sys/boot/i386/loader/Makefile.  A
> > tip of tree checkout with rev 1.73 removed PE boots.
> > 
> So, does backing it out solve your problem, if you downgrade only
> sys/boot/ to the date prior to this commit?  I doubt it, because
> I've verified that my changes produce identical binaries.  The
> only difference now is because vers.o and ../btx/lib/crt.o are
> linked into the loader.sym binary in a slightly different order.
> By making some insignificant changes to loader/Makefile I've been
> able to verify that I still get the identical binaries (for all
> of sys/boot/i386/) with my changes, after I saw your first
> complaint in this thread.
> 
> 
> Cheers,
> -- 
> Ruslan Ermilov
> FreeBSD committer
> ru at FreeBSD.org
>