AIX Preservation Installation

The Preservation Installation method is chosen when a version of BOS is

installed on a system where you want to preserve the user data in the root

volume group.

Note:

Preservation Installation overwrites the /usr, /tmp, /var, and /(root) file systems by default, so any user data in these directories is lost. These file systems are removed and recreated, so any other LPPs or filesets that you installed on the system will also be lost.

A Preservation Installation will only save all the non-system logical volumes and file systems on rootvg (for example, /home), or any user-created logical volumes.

In order to preserve data, the Preservation Installation uses the /etc/preserve.list file to list the system files to be copied and saved during the installation.

Add the full path names of any additional files that you want to save during the Preservation Installation to the preserve.list file.

This file does not exist on systems prior to AIX Version 4.1, so in this case you must explicitly create it.

You can modify the preserve.list file and copy it to a diskette to be used during BOS installation.

If a preserve.list file exists on diskette, the installation program uses this information instead of the default /etc/preserve.list file.

Ensure that you have sufficient disk space in the /tmp file system to store all the

files listed in the /etc/preserve.list file.

A system configuration must be redone after performing a Preservation Installation.

Additionally, you must reinstall any applications that were installed in your rootvg after the Preservation Install has completed.

After a Preservation Installation, you must also reconfigure devices, as well as recreate users and groups.

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