A little more information regarding this. I forgot to mention in my original report that the drives I was transferring data from are Toshiba 3TB NTFS formatted copying files to Buffalo 3TB drive NTFS formatted.
I did some more testing. I copied a little over 500Gb of data from a 1TB USB drive (NTFS format) to the Buffalo 3TB drive with no issues. There was no freeze. I then tried reversing the copy to copy files from the Buffalo 3TB drive to the Toshiba 3TB drive. I experience the system freeze after about 2 hours copying just as I hit F12 to open guake terminal. Again I could get to a terminal using crtl-alt-F*, could enter my login name, but never presented with a password prompt. So seems the issue is related to large USB drives. I will try formatting one to ext4 over the next few days to see if the issue is specific to NTFS. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1217627 Title: Ubuntu 13.04 freezes when copying large amount of data from one USB drive to another To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1217627/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
