2.1 New and Complete
Overwrite Installation
Use the Migration Installation method to upgrade AIX to a
different version or release to while preserving the
existing root volume group.
The following can be said about a migration installation:
- During a Migration installation, the installation process determines which
optional software products must be installed on AIX Version 4.3. AIX Version
3.2, AIX Version 4.1, or AIX Version 4.2 software that exists on the system and
has been replaced by new software in AIX Version 4.3 is installed at the AIX
Version 4.3 level.
- This method preserves all file systems except /tmp,
as well as the root volume group, logical volumes, and system configuration
files. In most cases, user configuration files from the previous version of a
product are saved.
- Non-software products remain on the system.
- When migrating from Version 3.2, all files in
/usr/lib/drivers, /usr/lib/microcode, /usr/lib/methods, and /dev are removed
from the system, so software support for non-IBM device drivers must be
reinstalled.
2.3 Preservation
Installation