Date: Mon, 29 Jan 2001 09:51:01 +0200 From: Danny Braniss <danny@cs.huji.ac.il> To: John Baldwin <jhb@FreeBSD.org> Cc: Terry Lambert <tlambert@primenet.com>, paul@mu.org (Paul Saab), freebsd-stable@FreeBSD.org, hackers@FreeBSD.org Subject: Re: Really odd "BTX halted" problem booting - PXE/diskless Message-ID: <E14N95Z-0004Zw-00@cs.huji.ac.il> In-Reply-To: Your message of Fri, 27 Oct 2000 19:02:03 -0700 (PDT) .
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im now being bitten by this one, but with a twist: on a compaq deskpro workstation it's ok on a dell-precision 420, it bombs. both bioses are configured to boot via the network/pxe. im using the same disks for both boxes. i labeled the disks with: dd if=/dev/zero of=/dev/rda0 bs=1k count=1 disklabel -Brw da0 auto i then went ahead an played with vinum, all went fine on the Compaq, i then wanted to do some comparisons, so i hooked up the disks to the Dell and now BTX bombs. is there a way, that when booting from the net, btx ignores the mbr/fdisk info? danny ps: im looking into the btx stuff, but will take me some time to remeber assembler :-) In message <XFMail.001027190203.jhb@FreeBSD.org>you write: } }On 28-Oct-00 Matt Dillon wrote: }>:> # optional dd if you are paranoid }>:> # dd if=/dev/zero of=/dev/da0 bs=32k count=4 }>:> fdisk -I da0 }>:> disklabel -w -r da0s1 auto }>:> }>:> That's much preferable to having to use sysinstall if all you want to }>:> do is initialize a label on a slice. }>: }>:Yes, this is definitely the desired behavior. }>: }>:-- }>: }>:John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ }> }> John, can you explain how the MBR bootstraps a slice? Should I make }> disklabel zero-out the fdisk partition table area in the slice rather }> then installing the dummy fdisk partition table? That is, for the }> case where -B is used on a slice (da0s1) verses on the whole-disk (da0)? } }Just ignore the slice table within a slice. It is only used when boot1 }is splatted over top of the MBR for the dangerously dedicated mode. It is }unused and ignored otherwise. } }> -Matt } }-- } }John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ }PGP Key: http://www.baldwin.cx/~john/pgpkey.asc }"Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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