Recently erased a folder called nastest, but the name now reappears in the /Volumes directory, and the file interferes with backup and file sync operations.
The file is not erasable, and does not allow for permissions to be changed even as a sudo user in Terminal.
However, starting the machine from the startup DVD, and running Terminal makes it possible to erase the file.
Restarting the machine from the startup DVD, and checking again shows no sign of nastest. The removal works when the startup disk is the DVD.
Changing back to the HD in the machine, nastest reappears again in /Volumes with a create time equal to the time of the boot.
My conclusion is that some process has a list of disks which should be included /Volumes at startup or when a disk is added (plug in a USB drive for instance), and that for some reason nastest is included (erroneously!).
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