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X.25/ACC Update Guide > Chapter 3 Upgrade procedure

Backing up your X.25 Classic sub-system

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HP recommends that you backup your X.25 sub-system configuration before you install the new software. This will enable you to restore your system in the event of difficulties.

The X.25 sub-system consists of libraries and related commands which can be installed, removed, and configured independently of HP-UX.

To perform a backup of your X.25 sub-system:

  1. Create a temporary directory such as /var/x25_classic/ to store your old X.25 sub-system.

  2. Copy all of your current configuration files to this temporary directory.

    cp /stand/system /var/x25_classic/system
    cp /stand/build/space.h /var/x25_classic/space.h
  3. Copy the entire contents of your X.25 configuration directory to the same directory.

    cp /etc/x25/* /var/x25_classic/
  4. Make a backup copy of your current HP-UX kernel.

    cp /stand/vmunix /stand/vmunix.prev

You now have everything you need to restore your X.25 sub-system.

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