Oh, I see. It seems that this device has a wrecked partitioning schema. It seems you are using the raw device ("sdb" instead of the first partition of the device ("sdb1"). However, there also seems to be a partition table on it:
dmesg: [ 300.939196] sdb: sdb1 [ 300.941070] sdb: p1 exceeds device capacity [ 300.941469] sd 4:0:0:0: [sdb] Attached SCSI removable disk [ 300.941506] sd 4:0:0:0: Attached scsi generic sg3 type 0 [ 301.055047] attempt to access beyond end of device [ 301.055056] sdb: rw=0, want=4294967044, limit=7503872 [ 301.055060] Buffer I/O error on device sdb1, logical block 1073741760 kernel: 04:10:27.415 [I] osspec.c:966: hal_util_find_known_parent: '/sys/block/sdb/sdb1'->'/sys/block/sdb' 04:10:27.415 [I] blockdev.c:874: block_add: sysfs_path=/sys/block/sdb/sdb1 dev=/dev/sdb1 is_part=1, parent=0x08100560 04:10:27.415 [I] blockdev.c:1448: Ignoring hotplug event - cannot read 'size' 04:10:27.415 [W] blockdev.c:1481: Not adding device object Did you ever reformat/repartition this device? Can you please give me the output of sudo fdisk -l /dev/sdb ? Can you mount /dev/sdb1 instead of /dev/sdb? -- Sony Walkman NWZ-A816 not recognized so not mounted. https://bugs.launchpad.net/bugs/303894 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs