I turned the power switch for the drive on and then off during the following console session.
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david@achernar:~$ tail -f /var/log/messages
tail: cannot open `/var/log/messages' for reading: Permission denied
david@achernar:~$ sudo tail -f /var/log/messages
[sudo] password for david:
Dec 25 13:12:22 achernar kernel: Bluetooth: RFCOMM socket layer initialized
Dec 25 13:12:22 achernar kernel: Bluetooth: RFCOMM ver 1.11
Dec 25 13:12:22 achernar kernel: Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Dec 25 13:12:22 achernar kernel: Bluetooth: BNEP filters: protocol multicast
Dec 25 13:12:24 achernar kernel: IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready
Dec 25 13:12:24 achernar kernel: IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Dec 25 13:12:24 achernar kernel: NET: Registered protocol family 17
Dec 25 13:12:25 achernar kernel: e1000e: eth1 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
Dec 25 13:12:25 achernar kernel: e1000e 0000:00:19.0: eth1: 10/100 speed: disabling TSO
Dec 25 13:12:25 achernar kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
Dec 25 18:17:23 achernar kernel: usb 1-5: new high-speed USB device number 2 using ehci_hcd
Dec 25 18:17:23 achernar kernel: usb 1-5: New USB device found, idVendor=4971, idProduct=a001
Dec 25 18:17:23 achernar kernel: usb 1-5: New USB device strings: Mfr=56, Product=78, SerialNumber=100
Dec 25 18:17:23 achernar kernel: usb 1-5: Product: USB2.0 Storage Device
Dec 25 18:17:23 achernar kernel: usb 1-5: Manufacturer: Cypress Semiconductor
Dec 25 18:17:23 achernar kernel: usb 1-5: SerialNumber: 060E0A40CF35
Dec 25 18:17:23 achernar kernel: scsi7 : usb-storage 1-5:1.0
Dec 25 18:17:23 achernar mtp-probe: checking bus 1, device 2: "/sys/devices/pci0000:00/0000:00:1a.7/usb1/1-5"
Dec 25 18:17:23 achernar mtp-probe: bus: 1, device: 2 was not an MTP device
Dec 25 18:17:45 achernar kernel: usb 1-5: reset high-speed USB device number 2 using ehci_hcd
Dec 25 18:17:56 achernar kernel: usb 1-5: reset high-speed USB device number 2 using ehci_hcd
Dec 25 18:18:01 achernar kernel: usb 1-5: reset high-speed USB device number 2 using ehci_hcd
Dec 25 18:18:11 achernar kernel: usb 1-5: reset high-speed USB device number 2 using ehci_hcd
Dec 25 18:18:11 achernar kernel: scsi 7:0:0:0: Device offlined - not ready after error recovery
Dec 25 18:18:39 achernar kernel: usb 1-5: USB disconnect, device number 2
sudo lsusb does not find the hard drive.
My machine is a dual boot with Windows 7. Booting in Windows, the drive is also not recognized.
Any clue is welcome. TIA