Quote:
Originally Posted by spiderpig
The author advocates using dump & restore on each partition, but if cloning the entire drive is the goal, why not simply back up the c partition?
|
dump and
restore act on filesystems.From the
dump man page
Code:
NAME
dump - filesystem backup
Label "c" does not have a filesystem, it is just a virtual label encompassing the complete disk, which could have other operating systems installed.
From one of my systems
Code:
$ disklabel wd0
# Inside MBR partition 0: type A6 start 63 size 81915372
# /dev/rwd0c:
type: ESDI
disk: ESDI/IDE disk
label: WDC WD3200AAKS-2
flags:
bytes/sector: 512
sectors/track: 63
tracks/cylinder: 255
sectors/cylinder: 16065
cylinders: 38913
total sectors: 625142448
rpm: 3600
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: 81787372 63 4.2BSD 2048 16384 1
b: 128000 81787435 swap
c: 625142448 0 unused 0 0
i: 204796620 163830870 unknown
j: 256509855 368627490 MSDOS
See, no
fstype defined for label "c"
I have some other OS's installed
Code:
]fdisk wd0
Disk: wd0 geometry: 38913/255/63 [625142448 Sectors]
Offset: 0 Signature: 0xAA55
Starting Ending LBA Info:
#: id C H S - C H S [ start: size ]
------------------------------------------------------------------------
*0: A6 0 1 1 - 5098 254 63 [ 63: 81915372 ] OpenBSD
1: A9 5099 0 1 - 10197 254 63 [ 81915435: 81915435 ] NetBSD
2: A5 10198 0 1 - 22945 254 63 [ 163830870: 204796620 ] FreeBSD
3: 05 22946 0 1 - 38912 254 63 [ 368627490: 256509855 ] Extended DOS
These all lie within the boundaries of the label "c" size of 625,142,448 sectors.
dump is not so smart it can backup NetBSD, FreeBSD and the extended DOS partitions in one go