Subject: bin/11729: upgrade to 1.5 from 1.3 leaves machine unbootable.
To: None <>
From: Charlie Root <>
List: netbsd-bugs
Date: 12/13/2000 09:45:19
>Number:         11729
>Category:       bin
>Synopsis:       upgrade from 1.3 to 1.5 leaves machine unbootable
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Dec 13 09:45:00 PST 2000
>Originator:     Charlie Root
>Release:        1.5<NetBSD-current source date>
System: NetBSD polaris 1.5_ALPHA2 NetBSD 1.5_ALPHA2 (POLARIS) #1: Wed Dec 13 00:45:28 MST 2000 root@polaris:/usr/src/sys/arch/i386/compile/POLARIS i386

Upgraded machine from 1.3 to 1.5 with sysinst.  machine attempted to boot
and was found to be totally unbootable from the BIOS.  (i386).
In order to fix this, I had to use fdisk to set the partition active, and
write the MBR out again.

Included is my fdisk output:
NetBSD disklabel disk geometry:
cylinders: 16383 heads: 16 sectors/track: 63 (1008 sectors/cylinder)

BIOS disk geometry:
cylinders: 1023 heads: 16 sectors/track: 63 (1008 sectors/cylinder)

Partition table:
3: sysid 169 (NetBSD)
    start 63, size 1032129 (503 MB), flag 0x80
        beg: cylinder    0, head   1, sector  1
        end: cylinder 1023, head  15, sector 63

Upgrade, reboot, cry.
Sysinst should make sure if there is only one netbsd parition on the disk,
that it is marked active.