From owner-freebsd-hackers Mon Aug 26 23:21:55 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id XAA15475 for hackers-outgoing; Mon, 26 Aug 1996 23:21:55 -0700 (PDT) Received: from irz301.inf.tu-dresden.de (irz301.inf.tu-dresden.de [141.76.1.11]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id XAA15468 for ; Mon, 26 Aug 1996 23:21:50 -0700 (PDT) Received: from sax.sax.de (sax.sax.de [193.175.26.33]) by irz301.inf.tu-dresden.de (8.6.12/8.6.12-s1) with ESMTP id IAA04453; Tue, 27 Aug 1996 08:21:35 +0200 Received: (from uucp@localhost) by sax.sax.de (8.6.12/8.6.12-s1) with UUCP id IAA12097; Tue, 27 Aug 1996 08:21:35 +0200 Received: (from j@localhost) by uriah.heep.sax.de (8.7.5/8.6.9) id HAA22579; Tue, 27 Aug 1996 07:24:18 +0200 (MET DST) From: J Wunsch Message-Id: <199608270524.HAA22579@uriah.heep.sax.de> Subject: Re: 2.1.5 install failure: booting from fd0 in stead of sd0 To: freebsd-hackers@freebsd.org (FreeBSD hackers) Date: Tue, 27 Aug 1996 07:24:18 +0200 (MET DST) Cc: guido@gvr.win.tue.nl (Guido van Rooij) Reply-To: joerg_wunsch@uriah.heep.sax.de (Joerg Wunsch) In-Reply-To: <199608261923.VAA09844@gvr.win.tue.nl> from Guido van Rooij at "Aug 26, 96 09:23:29 pm" X-Phone: +49-351-2012 669 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E X-Mailer: ELM [version 2.4ME+ PL17 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Guido van Rooij wrote: > When trying to boot, it says it is using dosdev:0 biosdev: 0 unit: 0 ^^ > major: 2. Herein lies the rub. dosdev == 0 means it's a floppy disk. boot.c converts this into `maj = 2'. Only if the 0x80 flag is set, it will move to maj = 0 (wd) or maj = 4 (sd). If i read the code right, it looks as if your BIOS doesn't pass the correct value in %dl down to the bootstrap. (It apparently passes 0 there as opposed to the boot drive BIOS ID.) Call it ``broken''... Your only chance short of replacing the BIOS is to hack the bootcode on your harddisk so it will never try booting off a floppy again. -- cheers, J"org joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE Never trust an operating system you don't have sources for. ;-)