Datasheet
“main” (Installation and Administration) — 2004/6/25 — 13:29 — page 63 — #89
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YaST — Configuration
Help ‘Help’ ➝ ‘Overview’ provides a brief explanation of the package
manager functionality. A detailed description of the various package
flags is available under ‘Symbols’. If you prefer to operate programs
without using the mouse, click ‘Keys’ to view a list of shortcuts.
Dependency Check
‘Check Dependencies’ and ‘Autocheck’ are located in the information win-
dow. If you click ‘Check Dependencies’, the package manger checks if the
current package selection results in any unresolved package dependencies
or conflicts. In the event of unresolved dependencies, the required addi-
tional packages are selected automatically. For package conflicts, the pack-
age manager opens a dialog that shows the conflict and offers various op-
tions for solving the problem.
If you activate ‘Autocheck’, any change of a package status triggers an au-
tomatic check. This is a useful feature, as the consistency of the package
selection is monitored permanently. However, this process consumes re-
sources and can slow down the package manager. For this reason, the au-
tocheck is not activated by default. In either case, a consistency check is
performed when you confirm your selection with ‘Accept’.
In the following example, sendmail and postfix may not be installed
concurrently. Figure 2.5 on the next page shows the conflict message
prompting you to make a decision. postfix is already installed. Accord-
ingly, you can refrain from installing sendmail, remove postfix, or take
the risk and ignore the conflict.
Caution
Handling Package Conflicts
It is advised to follow the suggestions of YaST when handling
package conflicts, because otherwise the stability and functional-
ity of your system could be endangered by the existing conflict.
Caution
2.3.5 System Update
This module enables an update of the version installed on your system.
During operation, you can only update application software, not the SUSE
LINUX base system. To update the base system, boot the computer from an
installation medium, such as the CD. When selecting the installation mode
in YaST, select ‘Update an Existing System’ instead of ‘New Installation’.
63SUSE LINUX Enterprise Server