Comment 5 for bug 191564

Yes. Partman-dmraid as of intrepid is now retired. The functions it had, and their replacements are as follows:

* Partman-dmraid added a dmraid commit option to the top of the manual partitioning menu, since dmraid devices were being treated as standard device-mapper devices. You would have to set up your partitions under the main dmraid device node first, run this commit option, and then set up the other dmraid nodes which were treated as device mapper devices for the filesystems you wanted. As a result of libparted knowing how to work with device mapper devices belonging to dmraid arrays, this is no longer needed.
* Partman-dmraid set the sataraid flag for any device that was part of a dmraid array. This has now been moved to partman-base, in init.d/parted.
* A warning was displayed to alert the user to the fact that dmraid support is experimental, and only if the dmraid=true flag was present on the kernel command line. Since libparted and other parts of partman handle dmraid a lot better, this is no longer needed.

Hope this clears things up.