Can't mount external USB HDD drive :(

[alecs]

Hi all! Can someone help with such a problem ...

When i plug in my usb drive /dev/sdc1 is not generated at all!
Only /dev/sdc :(
This device works ok in 9.04. Everything ok with my kingston usb flash 4
Gb stick. 
	Also should notice that i had to install from alternate, cause desktop
installer didn't see my Seagate 320Gb sata drive(not usb, internal
drive)

dmesg says:
[ 145.840719] scsi 7:0:0:0: Direct-Access StoreJet Transcend PQ: 0 ANSI:
2 CCS
[ 145.841044] sd 7:0:0:0: Attached scsi generic sg3 type 0
[ 145.843331] sd 7:0:0:0: [sdc] 625142448 512-byte logical blocks: (320
GB/298 GiB)
[ 145.844421] sd 7:0:0:0: [sdc] Write Protect is off
[ 145.844424] sd 7:0:0:0: [sdc] Mode Sense: 34 00 00 00
[ 145.844426] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[ 145.845955] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[ 145.845963] sdc: sdc1
[ 145.870826] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[ 145.870830] sd 7:0:0:0: [sdc] Attached SCSI disk
[ 146.387521] device-mapper: table: 252:0: striped: Couldn't parse
stripe destination
[ 146.387524] device-mapper: ioctl: error adding target to table

blkid /dev/sdc
/dev/sdc: TYPE="nvidia_raid_member"

cat /proc/scsi/usb-storage/7 
Host scsi7: usb-storage
Vendor: JMicron
Product: StoreJet Transcend
Serial Number: 33271F131A00
Protocol: Transparent SCSI
Transport: Bulk
Quirks: