B    Compact Disc Overview

The operating system software is distributed on four read-only compact discs (CD-ROM):

This appendix describes how to:

B.1    Loading a CD-ROM in a Caddy

A CD-ROM must be placed in a caddy before it can be inserted in an RRD42 or RRD44 disc drive. Caddies are not required for newer, faster types of disc drives. Follow these steps to load a CD-ROM in to a caddy:

  1. Remove the cellophane wrapper (if present) before using the caddy.

  2. Press the tabs on both sides of the caddy and lift the lid.

  3. Remove the CD-ROM from its packaging. Hold the CD-ROM by its edge.

  4. Place the CD-ROM in to the caddy, making sure that the labeled side faces up.

  5. Close the lid of the caddy by pressing both corners down firmly.

Figure B-1 shows how to press the tabs of the caddy and lift the lid.

Figure B-1:  Pressing Tabs and Lifting Lid of a CD-ROM Caddy

Figure B-2 shows how to place the disc in to the caddy.

Figure B-2:  Placing a Disc in to a CD-ROM Caddy

B.2    Inserting a CD-ROM into a Disc Drive

After placing the CD-ROM into a caddy, follow these steps to insert the disc caddy into a disc drive:

  1. Insert the caddy in to the slot in the disc drive. The disc label should be facing up.

  2. Push the caddy in until it stops.

Figure B-3 shows a CD-ROM (in its caddy) being inserted in to a disc drive:

Figure B-3:  Inserting a CD-ROM in to a Disc Drive

B.3    Mounting a CD-ROM

Before you can access the files and directories on a CD-ROM, it must be mounted on a mount point. Follow these steps to mount a CD-ROM:

  1. Log in as root or become superuser.

  2. Enter the following command to find the CD-ROM device name if necessary:

    # ls /dev/disk/cdrom*c
    /dev/disk/cdrom0c
    

  3. Use the mkdir command to make a directory to be the mount point for the CD-ROM. Then mount the CD-ROM using the mount command with the following syntax, substituting the unit number of your CD-ROM drive for the unit_number.

    mount /dev/disk/cdrom<unit_number>c /mount-point

    For example, to mount the CD-ROM in drive /dev/disk/cdrom0c on the directory /cdrom, enter the following commands:

    # mkdir /cdrom
    # mount -r /dev/disk/cdrom0c /cdrom
    

  4. To ensure that the CD-ROM is remounted in the event that your system crashes or is rebooted, add the following line to the /etc/fstab file:

    /dev/disk/cdrom0c       /cdrom   ufs   ro   0  0
    

    The system will mount the CD-ROM on the /cdrom mount point on every system reboot.

B.4    Unmounting a CD-ROM

You must unmount a CD-ROM from its mount point by using the umount command before you can eject it from the disc drive. To unmount a CD-ROM, you must be superuser or root and you must be at least one directory above the mount point of the CD-ROM. Use commands similar to the following to unmount a CD-ROM:

# cd /
# umount /cdrom

If you do not unmount the CD-ROM before trying to remove it, the CD-ROM will not eject from the drive when you press the [EJECT] button. If you are in the directory of the mount point of the CD-ROM when you execute the umount command, you will see the message device busy.

To remove the disc from the disc drive after it is unmounted, press the EJECT button on the disc drive.

If the [EJECT] button is disabled by software or if the drive does not eject the caddy after you press the [EJECT] button, refer to your Optical Disc Drive Owner's Manual for instructions.