HOWTO: Create Logical Disks under RT-11
Logical disks are a convenient way of getting round the lack of a directory structure in RT-11. A logical disk is a file which can be mounted as a virtual storage device.
To make a logical disk:
- Create an empty file to act as your logical disk:
CREATE [filename]/ALLOCATE:[number of blocks]
For example:
CREATE GAMES.DSK/ALLOCATE:500 - Mount the file as a logic disk:
MOUNT LD[number]: [filename]
For example:
MOUNT LD0: GAMES.DSK - Initialize the new logical disk:
INITIALIZE LD[number]:
For example:
INITIALIZE LD0: - You should now have a working logical disk. Try typing DIR LD[number]: to confirm. You can now subsequently remount this disk at any time using the MOUNT command from step 2.