hd is detected as raid although isn't

[paul!]

hi guys,

I've an asrock dual sata II mainboard, with 2 sata and 1 sataII port, and fedora 12 installed on one of the sata hds.
my problem is that one of the sata hds is always detected as "jmicron_raid_member", although I do NOT have any raid configured. (windows works...).
Even if I change the sata ports the same hd is always detected as "jimicron raid". However I can mount the first partition of this hd, but not the 2nd.

# fdisk -l
   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        6528    52428800    7  HPFS/NTFS
/dev/sdb2            6528       38914   260139008    7  HPFS/NTFS

Disk /dev/dm-0: 100.0 GB, 100025761792 bytes
255 heads, 63 sectors/track, 12160 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xd05b4856

     Device Boot      Start         End      Blocks   Id  System
/dev/dm-0p1   *           1        6528    52428800    7  HPFS/NTFS
/dev/dm-0p2            6528       38914   260139008    7  HPFS/NTFS

Disk /dev/dm-1: 53.7 GB, 53687091200 bytes
255 heads, 63 sectors/track, 6527 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x6e697373

This doesn't look like a partition table
Probably you selected the wrong device.

     Device Boot      Start         End      Blocks   Id  System
/dev/dm-1p1   ?      120528      234814   918008208   4f  QNX4.x 3rd part
Partition 1 does not end on cylinder boundary.
/dev/dm-1p2   ?      119381      153271   272218546+  73  Unknown
Partition 2 does not end on cylinder boundary.
/dev/dm-1p3   ?      113202      147075   272087568   2b  Unknown
Partition 3 does not end on cylinder boundary.
/dev/dm-1p4   ?      177064      177067       27487   61  SpeedStor
Partition 4 does not end on cylinder boundary.

It's /dev/sdb. If I try to mount /dev/sdb2 it says there is no /dev/sdb2.

# blkid
/dev/mapper/jmicron_kbg4p1: LABEL="Windows 7" UUID="D6C8A022C8A002BB" TYPE="ntfs" 
/dev/sdb: TYPE="jmicron_raid_member"

Mounting UUID="D6C8A022C8A002BB" ( = /dev/sdb1) works.


Can I get the 2nd partition mounted somehow?
Thanks in advantage!

[Kano]

Be sure that raid funktion is disabled in bios, then use

dmraid -Er

as root, that deletes the raid signature, if you really disabled raid in bios it will not return.

[paul!]

Thanks very much, that and a reboot did the trick.
Spend hours googeling, but you gotta know what to google for.

[Kano]

I don't need to google that because many Kanotix users had a similar problem. That also happens when a hd is taken out of a system with a raid controller. The signature is never erased, win does not care about it, but when you use a system with preinstalled dmraid then you have got those issues. dmraid can access motherboard raids even without the need of the correct bios/chipset version (just not boot in that case), ideal for rescue but in many more cases you just want to delete the signature.