Subject: Re: Booting net NetBSD 2.1 Install gives "Error 3" error.
To: None <netbsd-users@NetBSD.org>
From: None <firstname.lastname@example.org>
Date: 12/10/2005 21:07:00
Hi and thanks for the reply.
I am not entirely sure what output you are after from fdisk. I just then issued the command:
And got the following:
NetBSD disklabel disk geometry:
cylinders: 77545, heads: 16, sectors/track: 63 (1008 sectors/cylinder)
total sectors: 78165360
BIOS disk geometry:
cylinders: 1024, heads: 240, sectors/track: 63 (15120 sectors/cylinder)
total sectors: 78152400
0: NetBSD (sysid 169)
start 63, size 78156162 (38162 MB, Cyls 0-5169/15/1), Active
If what i understand of an extended partition is correct, then i have not used one. I broke the drive up
to contain a single primary partition and installed NetBSD to that partition with 2 "NetBSD Partitions"
one for the swap and another to be mounted at /
I just wiped out the first sector or so then by issuing the command:
dd of=/dev/rwd0d count=4096 if=/dev/zero
After doing that and then doing a re-install (Specifying NetBSD installer to use the whole disk for a
NetBSD partition) i got a different error. It was the BIOS No System disk error. I then ran an old debian
linux install CD and attempted to run fdisk from that on the drive, and it told me that the primary
partition that was setup by NetBSD was outside the physical bounds of the disk. I had created that by
asking the NetBSD installer to "Use the whole disk" for the partition.
So using Linux fdisk, i erased the old MBR and created a new one that the linux fdisk sees as being
inside the physical bounds of the disk. I then restarted the NetBSD installer and reinstalled it on the
partition that i created with the linux fdisk. After re-installing again i got the "Error 3" message.
I do not know what mbr_bootsel or mbr_ext are so i am unsure what the installer uses.
One question from the previus mail i sent:
when at the boot prompt when booting from the cd, if i type:
It says that the device is not configured. Should this be the case?
> You did not show the output of "fdisk". Sometimes it is a good idea
> zero out the 1st sector before installing the mbr via fdisk, as fdisk
> only writes part of this sector. Also I see you are using either
> mbr_bootsel, or mbr_ext. If mbr_ext and you used an extended
> is it possible the extended sector was corrupted?