Hi,
I have been trying to follow the backup/restore procedures for
recovering the an OpenBSD installation to a different machine an ran
into some problems.
Used http://www.openbsd.org/faq/faq14.html#Backup to create a backup
using dump of my partitions - went fine
Went through the restore procedures on the second machine used the
entire disk for the installation and created the disklabels. See
below...
> fdisk sd0
Disk: sd0 geometry: 4427/255/63 [71119755 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
------------------------------------------------------------------------
0: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
1: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
2: 00 0 0 0 - 0 0 0 [ 0: 0 ] unused
*3: A6 0 1 1 - 4426 254 63 [ 63: 71119692 ] OpenBSD
>disklabel sd0
# /dev/rsd0c:
type: SCSI
disk: SCSI disk
label: MAP3367NC
flags:
bytes/sector: 512
sectors/track: 739
tracks/cylinder: 2
sectors/cylinder: 1478
cylinders: 48122
total sectors: 71132959
rpm: 10025
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # microseconds
track-to-track seek: 0 # microseconds
drivedata: 0
16 partitions:
# size offset fstype [fsize bsize cpg]
a: 301449 63 4.2BSD 2048 16384 208 # (Cyl.
0*- 203)
b: 614848 301512 swap # (Cyl. 204
- 619)
c: 71132959 0 unused 0 0 # (Cyl. 0
- 48127*)
d: 239436 916360 4.2BSD 2048 16384 176 # (Cyl. 620
- 781)
e: 4194564 1155796 4.2BSD 2048 16384 416 # (Cyl. 782
- 3619)
f: 4194564 5350360 4.2BSD 2048 16384 416 # (Cyl. 3620
- 6457)
g: 20551590 9544924 4.2BSD 2048 16384 416 # (Cyl. 6458
- 20362)
Made the disk bootable wrote the MBR using the /usr/mdec utilities -
went fine
When rebooting into single user mode to restore the rest of the
partitions I get to the ddb> with the following error:
...
biomask ef65 netmask ef65 ttymask ffe7
pctr: 686-class user-level performance counters enabled
mtrr: Pentium Pro MTRR support
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02
panic: cannot open disk, 0x400/0xd00, error 6
Stopped at debugger+0x4: leave
...
I am unable to post capture more details at the moment but I will if
they are needed
I tried a couple of things:
1. New installation from CD 3.6 (just checking to see if this is a
hardware problem) - works fine
2. Used the install script to partition and label the disk (in case I
messed something up) - still same problem and after the recover
procedure.
3. Tried using the boot file from the image without writing the new
MBR - did not get to stage 1 as expected.
I seem to be missing something in the process; help is appreciated.
Thanks.
Dede
