<br><div class="gmail_quote"><br>I am using Ubuntu 10.04 and win XP.<br>
<br>
While I was playing some songs from my HD on windows suddent power<br>
got disconnected from my HD. When I plug it again it was not<br>
recognised(on windows). Actually windows even doesn't boot while HD is<br>
plugged in.<br>
<br>
Then I came to Ubuntu(usb still plugged in) but again Ubuntu was<br>
taking a lot of time for booting, then I unplugged HD and system<br>
booted normally. Then I plugged HD again but it was not recognized.<br>
<br>
After that I tried few commands:<br>
<br>
lsusb:<br>
It doesn't give any output when HD is plugged in.<br>
<br>
When plugged out lsusb gives normal output.<br>
<br>
Here are the last few lines of the command 'dmesg' which I think is<br>
showing some errors<br>
****************************************<br>
[ 271.592137] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 14<br>
[ 276.612302] usb 1-1: device descriptor read/8, error -110<br>
[ 281.732305] usb 1-1: device descriptor read/8, error -110<br>
[ 281.948161] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 15<br>
[ 286.968302] usb 1-1: device descriptor read/8, error -110<br>
[ 292.088306] usb 1-1: device descriptor read/8, error -110<br>
[ 292.192166] hub 1-0:1.0: unable to enumerate USB device on port 1<br>
[ 292.460163] usb 2-1: new full speed USB device using uhci_hcd and<br>
address 2<br>
[ 307.572143] usb 2-1: device descriptor read/64, error -110<br>
[ 322.788086] usb 2-1: device descriptor read/64, error -110<br>
[ 323.004171] usb 2-1: new full speed USB device using uhci_hcd and<br>
address 3<br>
[ 335.779414] ADDRCONF(NETDEV_UP): eth0: link is not ready<br>
[ 335.780398] e100: eth0 NIC Link is Up 10 Mbps Full Duplex<br>
[ 335.781854] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready<br>
[ 338.116126] usb 2-1: device descriptor read/64, error -110<br>
[ 353.332130] usb 2-1: device descriptor read/64, error -110<br>
[ 353.548123] usb 2-1: new full speed USB device using uhci_hcd and<br>
address 4<br>
[ 358.569288] usb 2-1: device descriptor read/8, error -110<br>
[ 363.689282] usb 2-1: device descriptor read/8, error -110<br>
[ 363.904192] usb 2-1: new full speed USB device using uhci_hcd and<br>
address 5<br>
[ 368.926285] usb 2-1: device descriptor read/8, error -110<br>
[ 374.045330] usb 2-1: device descriptor read/8, error -110<br>
[ 374.148155] hub 2-0:1.0: unable to enumerate USB device on port 1<br>
[ 885.124101] usb 2-1: new full speed USB device using uhci_hcd and<br>
address 6<br>
[ 899.052171] hub 2-0:1.0: unable to enumerate USB device on port 1<br>
[ 907.060161] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 16<br>
[ 922.172143] usb 1-1: device descriptor read/64, error -110<br>
[ 937.388120] usb 1-1: device descriptor read/64, error -110<br>
[ 937.604146] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 17<br>
[ 942.736400] hub 1-0:1.0: unable to enumerate USB device on port 1<br>
[ 994.604132] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 18<br>
[ 1009.720155] usb 1-1: device descriptor read/64, error -110<br>
[ 1024.936085] usb 1-1: device descriptor read/64, error -110<br>
[ 1025.152147] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 19<br>
[ 1040.264165] usb 1-1: device descriptor read/64, error -110<br>
[ 1044.568405] hub 1-0:1.0: unable to enumerate USB device on port 1<br>
[ 1295.240248] usb 1-1: new high speed USB device using ehci_hcd and<br>
address 20<br>
<br>
*****************************************<br>
<br>
If somebody has any idea where to go from here, please send your<br>
suggestions.<br>
<font color="#888888"><br>
<a href="http://tinyurl.com/ycueutm" target="_blank"></a><br>
</font></div><br><br clear="all"><br>-- <br>Alok Singh Mahor<br>CSE, IIT Delhi<br><a href="http://www.alokmahor.tk">www.alokmahor.tk</a><br><br>Join the next generation of computing, Open Source, and Linux/GNU!<br>