Getting a new system to see an old disk
Paul Hoffman
phoffman at proper.com
Thu Dec 18 12:19:37 PST 2003
Greetings again. I have a well-running 4.8 system. I have created a
new 4.9 system on a new hard drive, and I want to be able to mount
the old drive so I can copy all the relevant stuff from it. However,
the simple-minded stuff fails. For example, trying to mount the old /
partition on the new /mnt, I get:
mount: /dev/ad1s1a on /mnt: incorrect super block
But the drive is definitely seeable. Here's the output of "disklabel s1a":
# /dev/ad1c:
type: ESDI
disk: ad0s2
label:
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 4856
sectors/unit: 78011640
rpm: 3600
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 262144 0 4.2BSD 2048 16384 94 # (Cyl. 0 - 16*)
b: 1016912 262144 swap # (Cyl. 16*- 79*)
c: 78011640 0 unused 0 0 # (Cyl. 0 - 4855)
e: 524288 1279056 4.2BSD 2048 16384 94 # (Cyl. 79*- 112*)
f: 524288 1803344 4.2BSD 2048 16384 94 # (Cyl. 112*- 144*)
g: 75684008 2327632 4.2BSD 2048 16384 89 # (Cyl. 144*- 4855*)
What do I need to do to make the partitions of this new drive mountable?
--Paul Hoffman
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