Nevytvori se zarizeni pro USB disk

Ahoj, situace: pripojim k notebooku externi disk a vse v poradku. Vytvori se vsechna zarizeni v /dev/sdxx + zarizeni pro WD SmartWare CD (virtualni drive obsahujici nedulezita data). Pri znovupripojeni stejneho disku se nevytvori zarizeni v /dev/sdxx, prestoze pomoci fdisk -l prectu korektni partion table. Virtualni zarizeni se vytvori.


$ sudo fdisk -l /dev/sdc



Disk /dev/sdc: 499.4 GB, 499405291520 bytes

255 heads, 63 sectors/track, 60715 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Disk identifier: 0x0009b92b


   Device Boot      Start         End      Blocks   Id  System

/dev/sdc1               1        2550    20482843+   c  W95 FAT32 (LBA)

/dev/sdc2            2551       60715   467210362+   f  W95 Ext'd (LBA)

/dev/sdc5            2551       15298   102398278+   7  HPFS/NTFS

/dev/sdc6           15299       58642   348160648+   7  HPFS/NTFS

Seznam zarizeni v /dev


$ ls -l /dev/sdc*

brw-rw---- 1 root disk 8, 32 2010-01-19 09:36 /dev/sdc

V dmesg jsem nenalezl nic co by me nasmerovalo na problem:


$ dmesg
 
[83334.661324] usb 2-3.4: new high speed USB device using ehci_hcd and address 18

[83334.757641] usb 2-3.4: configuration #1 chosen from 1 choice

[83334.761527] scsi8 : SCSI emulation for USB Mass Storage devices

[83334.761797] usb-storage: device found at 18

[83334.761802] usb-storage: waiting for device to settle before scanning

[83339.760408] usb-storage: device scan complete

[83339.761470] scsi 8:0:0:0: Direct-Access     WD       My Passport 070A 1030 PQ: 0 ANSI: 4

[83339.762465] scsi 8:0:0:1: CD-ROM            WD       Virtual CD 070A  1030 PQ: 0 ANSI: 4

[83339.763326] scsi 8:0:0:2: Enclosure         WD       SES Device       1030 PQ: 0 ANSI: 4

[83339.766714] sd 8:0:0:0: Attached scsi generic sg2 type 0

[83339.771018] sr1: scsi3-mmc drive: 51x/51x caddy

[83339.771285] sr 8:0:0:1: Attached scsi CD-ROM sr1

[83339.771426] sr 8:0:0:1: Attached scsi generic sg3 type 5

[83339.771541] ses 8:0:0:2: Attached Enclosure device

[83339.771649] ses 8:0:0:2: Attached scsi generic sg4 type 13

[83339.780502] sd 8:0:0:0: [sdc] 975400960 512-byte logical blocks: (499 GB/465 GiB)

[83339.786547] sd 8:0:0:0: [sdc] Write Protect is off

[83339.786550] sd 8:0:0:0: [sdc] Mode Sense: 23 00 10 00

[83339.786552] sd 8:0:0:0: [sdc] Assuming drive cache: write through

[83339.790996] sd 8:0:0:0: [sdc] Assuming drive cache: write through

[83339.791000]  sdc: sdc1 sdc2 < sdc5 sdc6 >

[83339.827999] sd 8:0:0:0: [sdc] Assuming drive cache: write through

[83339.828018] sd 8:0:0:0: [sdc] Attached SCSI disk

[83340.199847] UDF-fs: Partition marked readonly; forcing readonly mount

[83340.200430] UDF-fs INFO UDF: Mounting volume 'WD SmartWare', timestamp 2009/09/11 20:33 (103c)

[83400.712254] INFO: task sync:8641 blocked for more than 120 seconds.

[83400.712262] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.

[83400.712270] sync          D c08145c0     0  8641   8634 0x00000000

[83400.712281]  c82d3f2c 00000082 f6588000 c08145c0 d31af3a8 c08145c0 7db235c0 00004afe

[83400.712299]  c08145c0 c08145c0 d31af3a8 c08145c0 00000000 00004afe c08145c0 f64fac40

[83400.712315]  d31af110 c82d3f60 d31af110 e09fde3c c82d3f58 c0570a25 fffeffff e2092800

[83400.712331] Call Trace:

[83400.712348]  [<c0570a25>] rwsem_down_failed_common+0x75/0x1a0

[83400.712358]  [<c0570b9dvgt;] rwsem_down_read_failed+0x1d/0x30

[83400.712367]  [<c0570bf7>] call_rwsem_down_read_failed+0x7/0x10

[83400.712376]  [<c05701b7>] ? down_read+0x17/0x20

[83400.712385]  [<c0207875>] sync_filesystems+0xb5/0x100

[83400.712393]  [<c0207901>] sys_sync+0x11/0x40

[83400.712401]  [<c010336c>] syscall_call+0x7/0xbcode>

Rucni vytvoreni blokoveho zarizeni nepomuze


$ sudo mknod /dev/sdc6 b 8 22

$ sudo mount /dev/sdc6 iii

mount: /dev/sdd6 is not a valid block device

Major a minor numbers jsem vzal s predchoziho uspesneho vytvoreni, ale popravde nejsem o jejich spravnosti presvedcen.

Ubuntu 9.10, WD Passport Essential 500GB updatovany FW na posledni verzi. Diky za kazdy navrh, ci nasmerovani do jakeho logu se podivat apod. Predem dekuje i muj uptime ;-)

Dotaz: Nevytvori se zarizeni pro USB disk

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