User`s guide

COPY
3. If one of the drives you used contained the system volume, prompts you to
remount the system volume.
A One-Drive COPY/WAIT Operation
If you are using one drive, the COPY/WAIT operation:
1. Prompts you to mount the input volume and then the output volume and
then (if necessary) repeats those steps until the operation has transferrred
whatever you have asked it to transfer between the two volumes.
2. If the one drive you used contained the system volume, you are prompted to
remount the system volume when the COPY operation is complete.
Restriction
The /WAIT option is valid with /INTERCHANGE, /TOPS, and /DOS when you
have two device drives available for the operation, and with /DEVICE when the
input and output devices are different.
RT–11 Command Descriptions 57