dmraid not support raid5 by Intel ICH9R

[Jonghyun Kim]

hi. My name is jonghyun.

my english writing is very bad. i'm so sorry. ;;

i want to my 4 harddisks(500GB) to configure raid5.

So kernel is patched dmraid-2.6.23.1.patch for raid5.

i run

1. dmraid -ay.

2. fdisk /dev/dm-2 for partition.

3. mk2fs -j /dev/dm-2 -> stopping os

why??

[dacmaps]

I am trying the same.

ASUS Motherboard with Intel P35 and ICH9R.
I have 4 hard disks and 2 raid sets via Intel Raid Matrix:
One RAID5 with 4 disks.
One RAID0 with 4 disks.

Using dmraid 1.0.0rc13 I can see only the RAID0 array. The RAID5 is not visible.

Searching in the little dmraid documentation I can not find any references to ICH9R RAID5 support, only
"ATARAID types supported: Intel Software RAID"

Any information about RAID5 support in dmraid?

Why is necessary the kernel patch?

Regards.