Re: Problem booting from wd0

[Uwe Dippel <udippel_(_at_)_uniten_(_dot_)_edu_(_dot_)_my>]

On Tue, 14 Jun 2005 12:06:14 -0500, arf wrote:

> Use dd form /dev/zero to wipe MBR and start of disk.
> Check Bios settings - AMI Bios set to "Auto" shows 
> LBA mode and DMA, etc.

I'm not so sure here; what this would be good for.

> Downloaded June 10 snapshot and checked md5 sums.
> 
> Installed without problems. The installboot output
> was:
> boot: /mnt/boot
> proto: /usr/mdec/biosboot
> device: /dev/rwd0c
> /usr/mdec/biosboot: entry point 0 proto bootblock
> size 512
> /mnt/boot is 3 blocks x 16384 bytes fs block shift 2;
> part offset 63; inode block 24, offset 1704
> using MBR partition 0: type 166 (0xa6) offset 63 (0x3f)

what does installboot do here ? Maybe I'm simply lost or stupid.?

You're doing a fresh install, or what ?
How's your disk layout ?
(And, as Nick pointed out, does it boot from diskette / CD ?)
http://www.openbsd.org/faq/faq8.html#Bootloader

http://www.openbsd.org/faq/faq14.html#Boot386
scroll down to 
What can go wrong
and understand how to recreate the MBR.

HTH,

Uwe,

who runs a 160GB hard disk without any hassle on a 1995 P100 MB with a
limit of 8GB hard disk; and a root partition of 150 MB at 'a'. With the
completely wrong geometry. I guess, as long as the '/' is found somehow,
the rest is taken over from the BIOS.