Howdy, I just got a new 160GB external USB Hard drive from Maxtor (the "One Touch"). At first it seemed to work for me without any trouble. I copied 10GB or so onto it and things look ok. But a few hours later the drive was unmounted. There is one big Linux partition with an ext3 filesystem on the drive. The drive is plugged into a 4-port Kensington USB hub. The first sign of trouble I see are these messages from /var/log/messages: Sep 20 20:01:06 kernel: updfstab: Using deprecated /dev/sg mechanism instead of SG_IO on the actual device Sep 20 20:01:06 kernel: kudzu: Using deprecated /dev/sg mechanism insteadof SG_IO on the actual device Later, these messages show up in /var/log/messages when the drive unmounts: Sep 20 22:02:30 kernel: usb 1-1.2: USB disconnect, address 4 Sep 20 22:09:04 kernel: scsi0 (0:0): rejecting I/O to dead device Sep 20 22:09:04 kernel: EXT3-fs error (device sda1): ext3_find_entry: reading directory #2 offset 0 Sep 20 22:09:04 kernel: Aborting journal on device sda1. Sep 20 22:09:04 kernel: scsi0 (0:0): rejecting I/O to dead device Sep 20 22:09:04 kernel: Buffer I/O error on device sda1, logical block 530 Sep 20 22:09:04 kernel: lost page write due to I/O error on sda1 Sep 20 22:09:04 kernel: scsi0 (0:0): rejecting I/O to dead device Sep 20 22:09:04 kernel: Buffer I/O error on device sda1, logical block 0 Sep 20 22:09:04 kernel: lost page write due to I/O error on sda1 Sep 20 22:10:08 kernel: scsi0 (0:0): rejecting I/O to dead device Sep 20 22:10:08 kernel: EXT3-fs error (device sda1): ext3_find_entry: reading directory #2 offset 0 Sep 20 22:10:08 kernel: scsi0 (0:0): rejecting I/O to dead device Sep 20 22:10:08 kernel: Buffer I/O error on device sda1, logical block 0 Sep 20 22:10:08 kernel: lost page write due to I/O error on sda1 Sep 20 22:10:08 kernel: ext3_abort called. Sep 20 22:10:08 kernel: EXT3-fs abort (device sda1): ext3_journal_start: Detected aborted journal Any idea how I can fix this? After a reboot the drive works again for a little while before unmounting. I have an FC2 system running the stock 2.6.8-1.521 kernel. Help! Appreciated, Allen
