4.1.3 Preservation Installation

4.2 Understanding Maintenance Levels

Once you have installed the base operating system, you can determine the maintenance level of your AIX system. For this, use the oslevel command. The general syntax of the oslevel command is as follows:

oslevel [ -l Level | -g | -q ]

A brief description of the oslevel command flags is given in Table 19.


Table 19: oslevel Command Flags

To see what is the current maintenance level of your system, use the oslevel command as follows: # oslevel

4.3.2.0

The product name and level number identify a software product. The level of a software product in AIX Version 4.3 is defined as vv.rr.mmmm.ffff, where:

vv

Is a numeric field of one to two digits that identifies the version number.

rr

Is a numeric field of one to two digits that identifies the release number.

mmmm

Is a numeric field of one to four digits that identifies the modification level.

ffff

Is a numeric field of one to four digits that identifies the fix level.

For example, bos.net.tcp.client 4.1.0.0 is a fileset, and bos.net.tcp.client 4.1.0.1 is an update to that fileset. If there is another fileset update, bos.net.tcp.client 4.1.0.2 is generated. This update will contain all the fixes that were in the bos.net.tcp.client 4.1.0.1. If a cumulative AIX update is generated, the mod level of the fileset will increment resulting in bos.net.tcp.client 4.1.1.0, which would contain all previous fixes.

4.3 Software Packaging