прозреваю, что у тебя тупорылая акневинда.
Ставь linux и все заработает.
[592584.496020] usb 3-2: new high speed USB device using ehci_hcd and address 4
[592584.631725] usb 3-2: configuration #1 chosen from 1 choice
[592584.632316] scsi24 : SCSI emulation for USB Mass Storage devices
[592584.636182] usb 3-2: New USB device found, idVendor=0e21, idProduct=0800
[592584.636187] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[592584.636188] usb 3-2: Product: COWON D2
[592584.636190] usb 3-2: Manufacturer: COWON Systems, Inc.
[592584.636191] usb 3-2: SerialNumber: 0283310056F839B3808077811214T5CM
[592584.636960] usb-storage: device found at 4
[592584.636963] usb-storage: waiting for device to settle before scanning
[592589.636102] usb-storage: device scan complete
[592589.636466] scsi 24:0:0:0: Direct-Access COWON D2 0100 PQ: 0 ANSI: 0
[592589.636835] scsi 24:0:0:1: Direct-Access COWON D2 0100 PQ: 0 ANSI: 0
[592589.637961] sd 24:0:0:0: [sdg] 15990784 512-byte hardware sectors (8187 MB)
[592589.638331] sd 24:0:0:0: [sdg] Write Protect is off
[592589.638335] sd 24:0:0:0: [sdg] Mode Sense: 37 00 00 08
[592589.638337] sd 24:0:0:0: [sdg] Assuming drive cache: write through
[592589.639831] sd 24:0:0:0: [sdg] 15990784 512-byte hardware sectors (8187 MB)
[592589.640204] sd 24:0:0:0: [sdg] Write Protect is off
[592589.640207] sd 24:0:0:0: [sdg] Mode Sense: 37 00 00 08
[592589.640208] sd 24:0:0:0: [sdg] Assuming drive cache: write through
[592589.640211] sdg:
[592589.641395] sd 24:0:0:0: [sdg] Attached SCSI removable disk
[592589.644702] sd 24:0:0:1: [sdh] Attached SCSI removable disk