After os level update it might happen that not all filesets are installed correctly what results in a lower oslevel than we attempted to update to. For example if we update from TL5 to TL7 on AIX 6.1. The oslevel command may return that we are on TL 6 instead of TL 7.

# oslevel -s
6100-06-06-1140

Instfix may help us to nail down the missing filesets

# instfix -i | grep ML
    All filesets for 6100-00_AIX_ML were found.
    All filesets for 6100-01_AIX_ML were found.
    All filesets for 6100-02_AIX_ML were found.
    All filesets for 6100-03_AIX_ML were found.
    All filesets for 6100-04_AIX_ML were found.
    All filesets for 6100-05_AIX_ML were found.
    All filesets for 6100-06_AIX_ML were found.
    Not all filesets for 6100-07_AIX_ML were found.

Do display the missing filesets that are holding us back from TL7 use:

# instfix -icqk 6100-07_AIX_ML | grep :-:
6100-07_AIX_ML:openssh.base.client:5.8.0.6101:5.4.0.6100:-:AIX 6100-07 Update
6100-07_AIX_ML:openssh.base.server:5.8.0.6101:5.4.0.6100:-:AIX 6100-07 Update
6100-07_AIX_ML:openssh.man.en_US:5.8.0.6101:5.4.0.6100:-:AIX 6100-07 Update
6100-07_AIX_ML:openssl.base:0.9.8.1800:0.9.8.1300:-:AIX 6100-07 Update
6100-07_AIX_ML:openssl.license:0.9.8.1800:0.9.8.1300:-:AIX 6100-07 Update
6100-07_AIX_ML:openssl.man.en_US:0.9.8.1800:0.9.8.1300:-:AIX 6100-07 Updat