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Ok, I'm going completely insane here.  I have a 1.7 TB disk, that I'm
desparately trying to disklabel.  So:

# disklabel ld0
disklabel: Invalid signature in mbr record 0
# /dev/rld0d:
type: ld
disk: unknown
label: fictitious
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: -869262
total sectors: -876216576
rpm: 7200
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0=20

4 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 a: 3418750720         0     4.2BSD      0     0     0  #
 d: 3418750720         0     unused      0     0        #
disklabel: boot block size 0
disklabel: super block size 0
#=20

Note how the 'size' is correct, but 'cylinders' and 'total sectors' is
wrong.  Ok, so I guess I edit the label to adjust it:

disklabel -e ld0

I make some modifications, and of course, when I write and quite:

disklabel: line 10: bad cylinders: -869262
disklabel: line 11: bad total sectors: -876216576
disklabel: cylinders/unit 0
disklabel: partition a: partition extends past end of unit
disklabel: partition d: partition extends past end of unit
re-edit the label? [y]:=20

Ok, so I think: how about I correct the faulty fields?  I fix 'total
sectors' and 'cylinders' to '3418750720' and '3391617' respectively.

Write and quit and all looks ok.  But then:

# disklabel ld0
disklabel: Invalid signature in mbr record 0
# /dev/rld0d:
type: ld
disk: unknown
label: fictitious
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 16
sectors/cylinder: 1008
cylinders: 3391617
total sectors: 2147483647
rpm: 7200
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0           # microseconds
track-to-track seek: 0  # microseconds
drivedata: 0=20

4 partitions:
#        size    offset     fstype [fsize bsize cpg/sgs]
 a: 2147483647         0     4.2BSD      0     0     0  #
 d: 2147483647         0     unused      0     0        #



So I can simply use the one large partition, create a filesystem from
the initial disklabel and it will correctly create a ~1.7TB filesystem.
But apparently it's impossible to partition this disk.

??

Help!

Thanks,
-Jan

--=20
Probability factor of one to one. We have normality. I repeat, we have=20
normality. Anything you still can't cope with is therefore your own lookout.

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