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List:       netbsd-bugs
Subject:    Re: port-i386/40752: x86 bootloader panic()/exit() loop
From:       "Jared D. McNeill" <jmcneill () invisible ! ca>
Date:       2009-02-26 15:05:03
Message-ID: 20090226150503.A7D1C63BD40 () www ! NetBSD ! org
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The following reply was made to PR port-i386/40752; it has been noted by GNATS.

From: "Jared D. McNeill" <jmcneill@invisible.ca>
To: gnats-bugs@NetBSD.org
Cc: port-i386-maintainer@netbsd.org, gnats-admin@netbsd.org, 
 netbsd-bugs@netbsd.org
Subject: Re: port-i386/40752: x86 bootloader panic()/exit() loop
Date: Thu, 26 Feb 2009 10:00:20 -0500

 Matthias Drochner wrote:
 > The following reply was made to PR port-i386/40752; it has been noted by GNATS.
 > 
 > From: Matthias Drochner <M.Drochner@fz-juelich.de>
 > To: "Jared D. McNeill" <jmcneill@invisible.ca>
 > Cc: gnats-bugs@NetBSD.org, port-i386-maintainer@NetBSD.org,
 > 	gnats-admin@NetBSD.org, netbsd-bugs@NetBSD.org
 > Subject: Re: port-i386/40752: x86 bootloader panic()/exit() loop 
 > Date: Thu, 26 Feb 2009 15:51:27 +0100
 > 
 >  jmcneill@invisible.ca said:
 >  > ``Ralf Brown's Interrupt List'' says about int 0x18: 
 >  > [...]
 >  
 >  There has been some research ~10 years ago when the
 >  boot code was reworked.
 >  PCs now usually try the next of the list of
 >  boot devices if a boot loader terminates with
 >  int 0x18, do the "press any key to reboot" prompt
 >  if none is left. So this would fit into the
 >  usual semantics.
 >  (This is only for biosboot; it only rarely works
 >  for network boot ROMs, and of course not from DOS.
 >  That's why the "exit" code needs to be booter
 >  specific rather than a generic library function.)
 
 Great. Is there a command at the boot prompt to do this as well? I can 
 see how that could come in handy.
 
 Cheers,
 Jared
 
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