21.2 Activating and Deactivating ISO Image Files as NSS Volumes (NetWare)

In NetWare 6.5 Support Pack 2 and later, the cddvd.nss module allows you to activate a CD or DVD image file as a read-only NSS volume, if the source file resides on an existing NSS volume.

21.2.1 Guidelines for Using Image Files as NSS Volumes

The image volume functions the same as any other NSS volume, except that it is read-only. While the image is mounted as a volume, you can mount and dismount the volume like a normal volume. You cannot modify the ISO file when it is in use as a mounted disk.

IMPORTANT:While the image file is mounted as a volume, make sure you access it and its contents only as a mounted volume. Accessing the image file itself as a file causes it to be immediately dismounted and removed as a volume.

While the CD or DVD image file is mounted on the server as an NSS volume, the image file is immediately dismounted and removed as an NSS volume if the following occurs:

  • The NSS volume that contains the image source file is dismounted, deactivated, or deleted.

    If the image file is removed as a volume, mount the parent volume, then mount the image file as a volume.

  • Accessing the image file itself by any application. This includes selecting the image file in a file browser as a file on the parent volume, or backing up the parent volume.

    If the image file is removed as a volume, close the application or browser that is accessing the file, then mount the image file as a volume.

21.2.2 Mounting an Image Volume

Prerequisite

The image files must reside on an existing NSS volume on NetWare, and that volume must be mounted.

Procedure

To activate a CD or DVD image file as an NSS volume on NetWare, use the MountImageVolume switch.

NOTE:It is not possible to mount ISO files that reside on another server this way. Use NFS, CIFS, or similar protocols to do that.

  1. At the server console prompt, enter 

    nss /MountImageVolume=path_imagefilename

    Replace path_imagefilename with the path on the NSS volume where the image file resides, including its filename. For example:

    nss /MountImageVolume=nssvol:\suse10_1.iso

21.2.3 Removing an Image Volume

To deactivate a CD or DVD image file as an NSS volume on NetWare, use the RemoveImageVolume switch. This removes the image volume, but it does not delete the image file itself.

  1. At the server console prompt, enter

    nss /RemoveImageVolume=path_imagefilename

    Replace path_imagefilename with the path on the NSS volume where the image file resides, including its filename. For example:

    nss /RemoveImageVolume=nssvol:\suse10_1.iso