2.2 Migration
Installation
Use the Preservation Installation method when a version
of BOS is installed on your system and you want to preserve
the user data in the root volume group.
The following can be said about a preservation installation:
- The /etc/preserve.list file
contains a list of system files to be copied and saved during a preservation
BOS installation. The /etc/filesystems file is listed by default. Add the full
path names of any additional files that you want to save during the
Preservation Installation to the preserve.list file. You must create the
/etc/preserve.list file on an AIX Version 3.1 machine. On an AIX Version 4.1 or
later system, edit the file that exists on your system.
- Ensure that you have sufficient disk space in the
/tmp file system to store the files listed in the /etc/preserve.list file.
- This method 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. Think of a preservation
install as an overwrite installation for these flle systems. System
configuration must be done after doing a Preservation
Installation.
2.4 The lppchk Command,
Verifying Installed Software