GParted requires both dmraid and kpartx to properly function with
FAKERAID. The Ubuntu 10.04 Live CD did not ship with kpartx and this is
why GParted will not automatically detect FAKERAID setups.
The kpartx application is required to create the proper device names
when the dmraid command does not create the proper name.
The general rule of thumb or convention for partition names used by
libparted is as follows:
1) If the device name ends in a letter, then for the partition name simply
append the partition number/
E.g.,
Device name = /dev/mapper/isw_cjbdddajhi_Volume
Partition name = /dev/mapper/isw_cjbdddajhi_Volume3
2) If the device name ends in a number, then for the partition name append the
letter 'p' and the partition number.
E.g.,
Device name = /dev/mapper/isw_cjbdddajhi_Vol6
Partition name = /dev/mapper/isw_cjbdddajhi_Vol6p3
Older versions of dmraid always appended the partition number only. I
think newer versions of dmraid might always append the letter 'p' and
the partition number, though I have not extensively tested this theory.
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Gparted not usable on fakeraid arrays
https://bugs.launchpad.net/bugs/600729
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