*BSD News Article 67667


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From: j@uriah.heep.sax.de (J Wunsch)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: can not boot without a floppy
Date: 4 May 1996 11:19:37 GMT
Organization: Private BSD site, Dresden
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mi@aldan.algebra.com (Mikhail Teterin) wrote:

(``dangerously dedicated'' setup)

> Nobody ever asked me about a boot-manager, but now I can only

That's quite natural, the BSD bootstrap forms the MBR, so there is no
space for any boot manager.

> boot using the install-floppy and typing wd(0,a)/kernel every
> time... How to set the MBR, so that it will work correctly?

What happens when trying to boot?

Since the BSD bootstrap is identical with the MBR, you can re-install
it with ``disklabel -B wd0''.  However (!), be aware that this will
clobber your fdisk table on the drive.  Not that you really need it,
but the default installation always assumes a `sliced' disk and uses
slice names in /etc/fstab.  You have to convert them into non-sliced
names before rebooting:

Previously (example):

/dev/sd0a	/	ufs	rw  7 1
/dev/sd0s1b	none	swap	sw
/dev/sd1s1a	/usr	ufs	rw 14 2

Non-sliced version:

/dev/sd0a	/	ufs	rw  7 1
/dev/sd0b	none	swap	sw
/dev/sd1a	/usr	ufs	rw 14 2

-- 
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. ;-)