Hi Curtis,

Went back today and got you some more info.

r...@debian:~# ls -la /dev/mapper
total 0
drwxr-xr-x       2      root    root    200     2010-07-08 11:13        .
drwxr-xr-x      16      root    root   3300     2010-07-08 11:13        ..
crw-------       1      root    root 10, 59     2010-07-08 11:10        control
lrwxrwxrwx       1      root    root      7     2010-07-08 11:08        
pdc_jcchiiab -> ../dm-0
lrwxrwxrwx       1      root    root      7     2010-07-08 11:13        
pdc_jcchiiab1 -> ../dm-1
lrwxrwxrwx       1      root    root      7     2010-07-08 11:13        
pdc_jcchiiab2 -> ../dm-2
lrwxrwxrwx       1      root    root      7     2010-07-08 11:13        
pdc_jcchiiab3 -> ../dm-3
lrwxrwxrwx       1      root    root      7     2010-07-08 11:13        
pdc_jcchiiab5 -> ../dm-5
lrwxrwxrwx       1      root    root      7     2010-07-08 11:13        
pdc_jcchiiab6 -> ../dm-6
lrwxrwxrwx       1      root    root      7     2010-07-08 11:13        
pdc_jcchiiab7 -> ../dm-7

GParted sees 3 disks:
        /dev/sda
        /dev/sdb
these are the physical disks forming the striped set, and
        /dev/mapper/pdc_jcchiiab
this is the logical disk made up by the striped set, on which the partitions 
are:
        /dev/mapper/pdc_jcchiiabp1
        /dev/mapper/pdc_jcchiiabp2
        /dev/mapper/pdc_jcchiiabp5
        /dev/mapper/pdc_jcchiiabp6
        /dev/mapper/pdc_jcchiiabp7
        /dev/mapper/pdc_jcchiiabp3
Note the use of a 'p' before the partition number
pdc_jcchiiab1
pdc_jcchiiabp1 (etc)

I got a bit more adventurous and started parted from the command line.
        select /dev/dm-0
        print
gives a correct overview of 80GB total disk space and the partitions within 
(you want that output as well?)

Then I tried fdisk from the command line
        fdisk -l /dev/dm-0
which gave me:
Device          Boot    Start   End     Blocks          id      System
/dev/dm0p1      *       1       2432    19531259        7       HPFS/NTFS
Partition 1 does not end on cylinder boundary.
/dev/dm0p2              2432    3897    11765505        5       Extended
Partition 2 does not end on cylinder boundary.
Partition 2 does not start on physical sector boundary.
/dev/dm0p3              3897    2432    46868224        7       HPFS/NTFS
Partition 3 does not end on cylinder boundary.
/dev/dm0p5              2432    3040     4882688        83      Linux
/dev/dm0p6              3040    3648     4882688        83      Liunx
/dev/dm0p7              3648    3897     1999872        82      Liunx Swap / 
Solaris

Again we see an extra p in the device name and also a 0 instead of a -
/dev/dm-1
/dev/dm0p1 (etc)

I did not perform other actions with either parted or fdisk for now. No 
modifications, no writing, nada.
Restarting went OK, btw. On the previous CD's it hung and I had to reset the pc 
manually.

cheers
Tom

-- 
Gparted does not list dmraid devices
https://bugs.launchpad.net/bugs/554582
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