sales@ubuntu:~$ dmesg | tail -30
[ 51.480916] sd 10:0:0:0: Attached scsi generic sg3 type 0
[ 51.494973] sd 10:0:0:0: [sdb] Attached SCSI removable disk
[ 66.210702] ISO 9660 Extensions: Microsoft Joliet Level 3
[ 66.220345] ISOFS: changing to secondary root
[ 542.843803] usb 2-3: USB disconnect, address 4
[ 594.428044] usb 2-3: new high speed USB device using ehci_hcd and address 5
[ 594.571379] usb 2-3: configuration #1 chosen from 1 choice
[ 594.577765] scsi11 : SCSI emulation for USB Mass Storage devices
[ 594.579986] usb 2-3: USB disconnect, address 5
[ 594.580271] usb-storage: device found at 5
[ 594.580273] usb-storage: waiting for device to settle before scanning
[ 601.280041] usb 2-3: new high speed USB device using ehci_hcd and address 6
[ 601.423370] usb 2-3: configuration #1 chosen from 1 choice
[ 601.431802] scsi14 : SCSI emulation for USB Mass Storage devices
[ 601.434796] usb-storage: device found at 6
[ 601.434799] usb-storage: waiting for device to settle before scanning
[ 601.435298] scsi15 : SCSI emulation for USB Mass Storage devices
[ 601.437321] usb-storage: device found at 6
[ 601.437323] usb-storage: waiting for device to settle before scanning
[ 606.435942] usb-storage: device scan complete
[ 606.438302] usb-storage: device scan complete
[ 606.438424] scsi 14:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
[ 606.440623] scsi 15:0:0:0: Direct-Access HUAWEI MMC Storage 2.31 PQ: 0 ANSI: 2
[ 606.459651] sr1: scsi-1 drive
[ 606.459773] sr 14:0:0:0: Attached scsi CD-ROM sr1
[ 606.459840] sr 14:0:0:0: Attached scsi generic sg2 type 5
[ 606.463478] sd 15:0:0:0: Attached scsi generic sg3 type 0
[ 606.479296] sd 15:0:0:0: [sdb] Attached SCSI removable disk
[ 621.114287] ISO 9660 Extensions: Microsoft Joliet Level 3
[ 621.119165] ISOFS: changing to secondary root
sales@ubuntu:~$ tail -30 /var/log/syslog
Jul 26 12:15:42 ubuntu ntfs-3g[1606]: Global ownership and permissions enforced, configuration type 1
Jul 26 12:17:01 ubuntu CRON[1668]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly)
Jul 26 12:20:04 ubuntu AptDaemon: INFO: Quiting due to inactivity
Jul 26 12:20:04 ubuntu AptDaemon: INFO: Shutdown was requested
Jul 26 12:22:37 ubuntu kernel: [ 542.843803] usb 2-3: USB disconnect, address 4
Jul 26 12:23:29 ubuntu kernel: [ 594.428044] usb 2-3: new high speed USB device using ehci_hcd and address 5
Jul 26 12:23:29 ubuntu kernel: [ 594.571379] usb 2-3: configuration #1 chosen from 1 choice
Jul 26 12:23:29 ubuntu kernel: [ 594.577765] scsi11 : SCSI emulation for USB Mass Storage devices
Jul 26 12:23:29 ubuntu kernel: [ 594.579986] usb 2-3: USB disconnect, address 5
Jul 26 12:23:29 ubuntu kernel: [ 594.580271] usb-storage: device found at 5
Jul 26 12:23:29 ubuntu kernel: [ 594.580273] usb-storage: waiting for device to settle before scanning
Jul 26 12:23:36 ubuntu kernel: [ 601.280041] usb 2-3: new high speed USB device using ehci_hcd and address 6
Jul 26 12:23:36 ubuntu kernel: [ 601.423370] usb 2-3: configuration #1 chosen from 1 choice
Jul 26 12:23:36 ubuntu kernel: [ 601.431802] scsi14 : SCSI emulation for USB Mass Storage devices
Jul 26 12:23:36 ubuntu kernel: [ 601.434796] usb-storage: device found at 6
Jul 26 12:23:36 ubuntu kernel: [ 601.434799] usb-storage: waiting for device to settle before scanning
Jul 26 12:23:36 ubuntu kernel: [ 601.435298] scsi15 : SCSI emulation for USB Mass Storage devices
Jul 26 12:23:36 ubuntu kernel: [ 601.437321] usb-storage: device found at 6
Jul 26 12:23:36 ubuntu kernel: [ 601.437323] usb-storage: waiting for device to settle before scanning
Jul 26 12:23:41 ubuntu kernel: [ 606.435942] usb-storage: device scan complete
Jul 26 12:23:41 ubuntu kernel: [ 606.438302] usb-storage: device scan complete
Jul 26 12:23:41 ubuntu kernel: [ 606.438424] scsi 14:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2
Jul 26 12:23:41 ubuntu kernel: [ 606.440623] scsi 15:0:0:0: Direct-Access HUAWEI MMC Storage 2.31 PQ: 0 ANSI: 2
Jul 26 12:23:41 ubuntu kernel: [ 606.459651] sr1: scsi-1 drive
Jul 26 12:23:41 ubuntu kernel: [ 606.459773] sr 14:0:0:0: Attached scsi CD-ROM sr1
Jul 26 12:23:41 ubuntu kernel: [ 606.459840] sr 14:0:0:0: Attached scsi generic sg2 type 5
Jul 26 12:23:41 ubuntu kernel: [ 606.463478] sd 15:0:0:0: Attached scsi generic sg3 type 0
Jul 26 12:23:41 ubuntu kernel: [ 606.479296] sd 15:0:0:0: [sdb] Attached SCSI removable disk
Jul 26 12:23:56 ubuntu kernel: [ 621.114287] ISO 9660 Extensions: Microsoft Joliet Level 3
Jul 26 12:23:56 ubuntu kernel: [ 621.119165] ISOFS: changing to secondary root
sales@ubuntu:~$