[TriLUG] USB Mass Storage - changes from R/W to RO

[Carl Crider]

Maybe this will help, we've done this at work to fix a similar Cent OS/USB
issue.

#rmmod ohci_hcd

then

#modprobe ohci_hcd

To make this automatic add "rmmod ohci_hcd" and "modprobe ohci_hcd"
into /etc/rc.local




On 10/31/07, Paul G. Szabady <Paul at thyservice.com> wrote:
>
> Greetings,
>
> I have the same problem on two machines and was hoping someone could shed
> some light.  I have a CentOS 4.5 machine with a 500GB external USB drive
> and a Suse 10 SP1 machine with a 250GB external USB drive.  In both cases,
> I am able to mount the USB drives READ/WRITE but after some random amount
> of time, the mount switches to READONLY, even if it's active.  For
> example, I was copying ~13GB of data from a system drive to the USB drive
> on the Suse/250GB system last night.  After about 2.7GB of data transfer,
> it went belly up.  I have poked around on google, but most of what I find
> pertains to getting the drive up and running, not where it "disappears".
> Has anyone run into this before?
>
> Here's the relevant snippet from my dmesg log, after the USB drive was
> power-cycled and the entry in my fstab.
>
> <dmesg snippet>
>
> usb 1-2: new full speed USB device using ohci_hcd and address 8
> usb 1-2: new device found, idVendor=0bc2, idProduct=3000
> usb 1-2: new device strings: Mfr=1, Product=2, SerialNumber=3
> usb 1-2: Product: FreeAgentDesktop
> usb 1-2: Manufacturer: Seagate
> usb 1-2: SerialNumber:             6RY08BNP
> usb 1-2: configuration #1 chosen from 1 choice
> scsi5 : SCSI emulation for USB Mass Storage devices
> usb-storage: device found at 8
> usb-storage: waiting for device to settle before scanning
>   Vendor: Seagate   Model: FreeAgentDesktop  Rev: 100D
>   Type:   Direct-Access                      ANSI SCSI revision: 04
> SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB)
> sdb: Write Protect is off
> sdb: Mode Sense: 1c 00 00 00
> sdb: assuming drive cache: write through
> SCSI device sdb: 488397168 512-byte hdwr sectors (250059 MB)
> sdb: Write Protect is off
> sdb: Mode Sense: 1c 00 00 00
> sdb: assuming drive cache: write through
> sdb: sdb1
> sd 5:0:0:0: Attached scsi disk sdb
> sd 5:0:0:0: Attached scsi generic sg1 type 0
> usb-storage: device scan complete
> (fs/jbd/recovery.c, 255): journal_recover: JBD: recovery, exit status 0,
> recovered transactions 2 to 5
> (fs/jbd/recovery.c, 257): journal_recover: JBD: Replayed 14 and revoked
> 1/1 blocks
> kjournald starting.  Commit interval 5 seconds
> EXT3 FS on sdb1, internal journal
> EXT3-fs: recovery complete.
> EXT3-fs: mounted filesystem with ordered data mode.
> kjournald starting.  Commit interval 5 seconds
> EXT3 FS on sdb1, internal journal
> EXT3-fs: mounted filesystem with ordered data mode.
> sd 5:0:0:0: Device not ready: <6>: Current: sense key: Not Ready
>     Additional sense: Logical unit not ready, initializing command
> required
> end_request: I/O error, dev sdb, sector 786631
> EXT3-fs error (device sdb1): read_inode_bitmap: Cannot read inode bitmap -
> block_group = 3, inode_bitmap = 98321
> Aborting journal on device sdb1.
> sd 5:0:0:0: Device not ready: <6>: Current: sense key: Not Ready
>     Additional sense: Logical unit not ready, initializing command
> required
> end_request: I/O error, dev sdb, sector 4343
> Buffer I/O error on device sdb1, logical block 535
> lost page write due to I/O error on sdb1
> sd 5:0:0:0: Device not ready: <6>: Current: sense key: Not Ready
>     Additional sense: Logical unit not ready, initializing command
> required
> end_request: I/O error, dev sdb, sector 63
> Buffer I/O error on device sdb1, logical block 0
> lost page write due to I/O error on sdb1
> EXT3-fs error (device sdb1) in ext3_new_inode: IO failure
> journal commit I/O error
> EXT3-fs error (device sdb1) in ext3_create: IO failure
> ext3_abort called.
> EXT3-fs error (device sdb1): ext3_journal_start_sb: Detected aborted
> journal
> Remounting filesystem read-only
>
> </dmesg snippet>
>
> <fstab>
>
> #/dev/sdb1      /mnt/usbdrive   ext3    defaults        1 1
> /dev/sdb1       /mnt/usbdrive   ext3    acl,user_xattr,sync     1 1
>
> </fstab>
>
> I had hoped that maybe using autofs would help in some way, but even that
> didn't seem to make a difference either.
>
> Thoughts?
>
> --
> Paul
> @ Thy Service
>
>
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