I'm backing up to a NTFS partition on an external USB drive with dump. I'm
seeing failures in /var/log/messages reading sector 0xFFFFFFF that cause
the verify pass to fail. Are there any known problems in the USB driver?
Kernel via uname -a:
Linux segw2.mpa.lan 2.6.18-92.1.6.el5 #1 SMP Wed Jun 25 13:49:24 EDT 2008
i686 i686 i386 GNU/Linux
Message reported. (Note the number 268435455, which is 0xFFFFFFF, and
occurs every time I see this happen. But a subsequent attempt to read this
region with dd succeeds, so it appears to be intermittent, or dependent on
some other precondition.)
Sep 7 10:48:39 segw2 kernel: sd 5:0:0:0: Device not ready: <6>: Current:
sense key: Not Ready
Sep 7 10:48:39 segw2 kernel: Add. Sense: Logical unit not ready, cause
not reportable
Sep 7 10:48:39 segw2 kernel:
Sep 7 10:48:39 segw2 kernel: end_request: I/O error, dev sdb, sector
268435455
Sep 7 10:48:39 segw2 kernel: Buffer I/O error on device sdb1, logical
block 33554424
Sep 7 10:48:39 segw2 kernel: sd 5:0:0:0: Device not ready: <6>: Current:
sense key: Not Ready
Sep 7 10:48:39 segw2 kernel: Add. Sense: Logical unit not ready, cause
not reportable
Sep 7 10:48:39 segw2 kernel:
Sep 7 10:48:39 segw2 kernel: end_request: I/O error, dev sdb, sector
268435455
Sep 7 10:48:39 segw2 kernel: Buffer I/O error on device sdb1, logical
block 33554424
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