Subject: Re: Installboot and the "invalid MBR"
To: None <port-i386@NetBSD.org>
From: Peter Seebach <seebs@plethora.net>
List: port-i386
Date: 10/31/2004 21:19:02
In message <200410312218.i9VMI5ak001232@herd.plethora.net>, Peter Seebach write
s:
>I'm reloading a machine, and I've newfs'd a disk, copied everything over,
>and run installboot. Installboot says it is ignoring the MBR on /dev/wd0a,
>which has "invalid magic". And whatever that means, the NetBSD partition
>isn't bootable; I can point a boot loader at it (Partition Commander, if
>it matters, which can still boot fine to the old disk), and it just does
>nothing at all. Not even the normal boot loader messages.
>
>Is there any likely connection between the apparently bad MBR for this
>partition, and the boot loader not really working? If so, what am I
>to do to fix this? fdisk -c updates the whole disk's boot code, not
>this partition, and I was pretty sure that the entire point of installboot
>was to make the partition bootable.
I have no idea what caused the "invalid MBR" problem, but my REAL problem
is that the boot blocks don't work if /boot is over 32GB past the start of the
disk. Oops!
-s