However, I am uneasy about this very speculative solution.

I have had some success by repartitioning the drive into two main partitions of about equal size (460GB) on the drive at the beginning and end with a medium sized partition in the middle (as it seems that this error is occurring at around the 'middle' of the drive size). Obviously the expected behaviour from copying is not to have the computer hard-lock requiring a forced reboot.įor obvious reasons (Terminal being locked, applications won't start) it is hard to diagnose the problem.Īny insight would be greatly appreciated. I have Spotlight disabled for the external drive, if that makes any difference. Disk utility reveals no issues with the destination drive. One can still access the Finder, and even read from the drive, but relaunching Finder causes it to display seemingly indefinitely 'Application not responding' and in any case one cannot start new applications.Īfter rebooting, the destination has received most of the data. In particular the dialog entitled 'Copy' remains open, clicking the 'Stop copy' 'X' button causes an indefinite pause with 'Stopping. Note that roughly the same result occurs when attempting the same copy in Finder. one must hard-restart by holding the power button) variations on ejecting (before Finder locks) and unplugging the USB cable appear to have no effect on the inevitability of this result.

Relaunching Finder causes the menu bar at the top and the dock to disappear.

Executing 'Force Quit' on Terminal quits the Terminal, but it cannot be reopened.

'Invalid argument' (because the destination no longer exists).

The copy fails for an item and all subsequent items, complaining with various errors including:.

If possible, always eject a disk before unplugging it or turning it off.' (There were no physical events that took place that would have resulted in a disconnection) A message pops up in a dialog box that says 'The disk was not ejected properly.I am copying using cp or mv on the command line a large amount (>500gb) of files each sized between 600MB and 2.6GB to an external drive (a Thermaltake BlacX Duet), but after a significant but inconsistent amount of transfer (e.g.

Thermaltake blacx duet not recognized