Nov 25 17:45:27 localhost kernel: usb 1-2: new full speed USB device using ohci_hcd and address 4
Nov 25 17:45:28 localhost kernel: scsi2 : SCSI emulation for USB Mass Storage devices
Nov 25 17:45:33 localhost kernel:   Vendor: CRUCIAL   Model: USB Flash DiskRev: 2.00
Nov 25 17:45:33 localhost kernel:   Type:   Direct-AccessANSI SCSI revision: 02
Nov 25 17:45:33 localhost kernel: sda: Unit Not Ready, sense:
Nov 25 17:45:33 localhost kernel: : Current: sense key: Unit Attention
Nov 25 17:45:33 localhost kernel:     Additional sense: Not ready to ready change, medium may have changed
Nov 25 17:45:33 localhost kernel: sda : READ CAPACITY failed.
Nov 25 17:45:33 localhost kernel: sda : status=1, message=00, host=0, driver=08
Nov 25 17:45:33 localhost kernel: sd: Current: sense key: Unit Attention
Nov 25 17:45:33 localhost kernel:     Additional sense: Not ready to ready change, medium may have changed
Nov 25 17:45:33 localhost kernel: sda: test WP failed, assume Write Enabled
Nov 25 17:45:33 localhost kernel: sda: assuming drive cache: write through
Nov 25 17:45:33 localhost kernel: sda: Unit Not Ready, sense:
Nov 25 17:45:33 localhost kernel: : Current: sense key: Unit Attention
Nov 25 17:45:33 localhost kernel:     Additional sense: Not ready to ready change, medium may have changed
Nov 25 17:45:33 localhost kernel: sda : READ CAPACITY failed.
Nov 25 17:45:33 localhost kernel: sda : status=1, message=00, host=0, driver=08
Nov 25 17:45:33 localhost kernel: sd: Current: sense key: Unit Attention
Nov 25 17:45:33 localhost kernel:     Additional sense: Not ready to ready change, medium may have changed
Nov 25 17:45:33 localhost kernel: sda: test WP failed, assume Write Enabled
Nov 25 17:45:33 localhost kernel: sda: assuming drive cache: write through
Nov 25 17:45:33 localhost kernel: sda: Unit Not Ready, sense:
Nov 25 17:45:33 localhost kernel: : Current: sense key: Unit Attention
Nov 25 17:45:33 localhost kernel:     Additional sense: Not ready to ready change, medium may have changed
Nov 25 17:45:33 localhost kernel: sda : READ CAPACITY failed.
Nov 25 17:45:33 localhost kernel: sda : status=1, message=00, host=0, driver=08
Nov 25 17:45:33 localhost kernel: sd: Current: sense key: Unit Attention
Nov 25 17:45:33 localhost kernel:     Additional sense: Not ready to ready change, medium may have changed
Nov 25 17:45:33 localhost kernel: sda: test WP failed, assume Write Enabled
Nov 25 17:45:33 localhost kernel: sda: assuming drive cache: write through
Nov 25 17:45:33 localhost kernel:  sda:end_request: I/O error, dev sda, sector0
Nov 25 17:45:33 localhost kernel: Buffer I/O error on device sda, logical block 0
Nov 25 17:45:33 localhost last message repeated 2 times
Nov 25 17:45:33 localhost kernel:  unable to read partition table
Nov 25 17:45:33 localhost kernel: Attached scsi removable disk sda at scsi2, channel 0, id 0, lun 0
Nov 25 17:45:33 localhost scsi.agent[4692]: disk at /devices/pci0000:00/0000:00:07.4/usb1/1-2/1-2:1.0/host2/target2:0:0/2:0:0:0
Nov 25 17:45:55 localhost kernel: usb 1-2: USB disconnect, address 4