UCS 2.4 - Univention

11 Software maintenance
• Search systems lists all systems with the set filter features. System names, UCS versions or system
roles can be combined flexibly as filters. Search filter can be saved permanently.
• Search packages lists all systems where a certain package is installed. This allows searches for
the installation status of individual packages as well as package names. Search filters can be saved
permanently.
The following gives an overview of the search possibilities available for the installation status of
packages:
– The Package selection state influences the action taken when updating a package. Install is
used to select a package for installation. If a package is configured to Hold it will be excluded
from further updates. There are two possibilities for uninstalling a package: A package re-
moved with DeInstall keeps locally created configuration data, whilst a package removed with
PurgePurge is completely deleted.
– The Installation state describes the status of an installed package in relation to upcoming
updates. The normal status is Ok, which leads to a package being updated when a newer
version exists. If a package is configured to Hold it will be excluded from the update.
– The Current package state describes the status of a set-up package. The normal status here
is Installed for installed packages and ConfigFiles for removed packages. All other statuses
appear when the package’s installation was cancelled in different phases.
• Identify problems allows automatic identification of installation problems:
– The installed package version can be compared with the expected package status of any cho-
sen release. This allows the efficient discovery of out-of-date software in large environments.
– Incompletely installed software packages can be identified.
If you do not wish UCS systems to store installation processes in the software monitor (e.g., when there
is no network connection to the database), this can be arranged by setting the Univention Configuration
Registry variable pkgdb/scan to no.
Should storing be reactivated at a later date, the command univention-pkgdb-scan must be executed
to ensure that package versions installed in the meanwhile are also adopted in the database.
As standard only systems from the database server subnet can store their configuration in the soft-
ware monitor. To grant systems from other subnets access, an appropriate network range or network
mask must be entered in the Univention Configuration Registry variables pgsql/pkgdb/network and
pgsql/pkgdb/netmask. An example:
univention-config-registry set pgsql/pkgdb/network=10.200.0.0
univention-config-registry set pgsql/pkgdb/netmask=255.255.0.0
Following these changes the Postgresql service must be restarted (e.g. using the Univention Management
Console).
11.5 Repository management
A repository contains the software packages and updates and makes them available to other UCS sys-
tems. Repositories can be set up on UCS domain controllers and member servers. A server which offers
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