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OpenBSD disklabel

  • 20-03-2006 6:41pm
    #1
    larryone
    Registered Users, Registered Users 2 Posts: 1,105 ✭✭✭


    Anyone know how to diagnose disklabel problems???


    disklabel: warning, partition c: size % cylinder-size != 0


Comments

  • #2
    krinDar
    Closed Accounts Posts: 96 ✭✭krinDar


    larryone wrote:
    disklabel: warning, partition c: size % cylinder-size != 0

    The problem is that the size of the C: partition does not fill a
    complete cylinder.

    Can you put up the output of the partition table ?


  • #3
    larryone
    Registered Users, Registered Users 2 Posts: 1,105 ✭✭✭larryone


    It's a disk from an Alpha server that I need to get data from... The Alpha server no longer boots, and I dont have the time right now to diagnose the problem. So I took the disk and lashed it into a Sun Ultra60, which is also running OpenBSD. My problem is that I cant remember all of the details of the partitioning that the disk had...
    machine$ disklabel sd1
# /dev/rsd1c:
type: SCSI
disk: SCSI disk
label: RZ2DD-LS (C) DEC
flags:
bytes/sector: 512
sectors/track: 168
tracks/cylinder: 20
sectors/cylinder: 3360
cylinders: 5273
total sectors: 17773524
rpm: 10045
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0

3 partitions:
#             size        offset  fstype [fsize bsize  cpg]
  c:      17773524             0  unused      0     0      # Cyl     0 -  5289*
disklabel: warning, partition c: size % cylinder-size != 0
machine$
machine$ disklabel -r sd1
disklabel: no disklabel found. scanning.
disklabel: no disk label
machine$


  • #4
    larryone
    Registered Users, Registered Users 2 Posts: 1,105 ✭✭✭larryone


    I also have a complete dd from the disk on aother machine - considering trying to dig through that to get the data out of it, but I'm not really sure yet how to go about doing that...


  • #5
    larryone
    Registered Users, Registered Users 2 Posts: 1,105 ✭✭✭larryone


    If I edit the disklabel so it has the size of "c" is sectors per cylinder times the number of cylinders, I get this:
    machine$ disklabel sd1
# /dev/rsd1c:
type: SCSI
disk: SCSI disk
label: RZ2DD-LS (C) DEC
flags:
bytes/sector: 512
sectors/track: 168
tracks/cylinder: 20
sectors/cylinder: 3360
cylinders: 5273
total sectors: 17717280
rpm: 10045
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]
  c:      17717280             0  unused      0     0      # Cyl     0 -  5272
machine$
    But I know theat there is an "a" "b" and "d" on the disk, possibly others... the copy of disklabel on the system now gives me this, and trying to read the disklabel straight from the disk fails...


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