how not to initialize HD
jb.123abc at yahoo.com
Mon Aug 2 08:54:39 UTC 2010
Paul Cartwright <fedora <at> pcartwright.com> writes:
what a nice and educational set of outputs.
I think some final thoughts are justified.
Anybody who tries to diminish the value of cfdisk, also in diagnosing problems
(by ignoring its warning/error messages), is misleading.
$ man fdisk # note the source
There are several *fdisk programs around. Each has its problems and
strengths. Try them in the order cfdisk, fdisk, sfdisk. (Indeed,
cfdisk is a beautiful program that has strict requirements on the par-
tition tables it accepts, and produces high quality partition tables.
Use it if you can.
>> # cfdisk -Ps
>> FATAL ERROR: Bad primary partition <number>: Partition ends in the final
>> partial cylinder
>> # fdisk -l
>> /dev/sda7 11919 12162 1951744 82 Linux swap /
>> Solaris /dev/sda8 8095 11918 30716248+ c W95 FAT32
After (anaconda delivered a working/error free disk):
> # cfdisk -Ps
> Partition Table for /dev/sda
Also note the following in 'cfdisk -Ps' output:
- entries are in disk order (as opposed to 'fdisk -l')
- it shows Unusable (damaged space)
- it shows Free Space
There is something else in Paul's post us ...
# fdisk -l
> Disk /dev/sdb: 2055 MB, 2055019520 bytes
> 64 heads, 62 sectors/track, 1011 cylinders
> Units = cylinders of 3968 * 512 = 2031616 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
> Disk identifier: 0xb0bcd68e
> Device Boot Start End Blocks Id System
> /dev/sdb1 1 1011 2005793 b W95 FAT32
What is it ?
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