Table of Contents
SUSE LINUX provides the option of updating an existing system without completely reinstalling it. There are two types of updates: updating individual software packages and updating the entire system. Packages can also be installed by hand using the package manager RPM.
Software tends to “grow” from version to version. Therefore, take a look at the available partition space with df before updating. If you suspect you are running short of disk space, secure your data before updating and repartition your system. There is no general rule of thumb regarding how much space each partition should have. Space requirements depend on your particular partitioning profile, the software selected, and the version numbers of SUSE LINUX.
Read the README file or, in DOS or Windows, the README.DOS file on the CD. This file contains any changes made after this manual went to print.
Before updating, copy the old configuration files to a separate medium, such as streamer, removable hard disk, or ZIP drive, to secure the data. This primarily applies to files stored in /etc as well as some of the directories and files in /var and /opt. You may also want to write the user data in /home (the HOME directories) to a backup medium. Back up this data as root. Only root has read permission for all local files.
Before starting your update, make note of the root partition. The command df / lists the device name of the root partition. In Example 4.1. “List with df -h”, the root partition to write down is /dev/hda2 (mounted as /).
Before updating the system, make sure /etc/passwd and /etc/group do not contain any syntax errors. For this purpose, start the verification utilities pwck and grpck as root and eliminate any reported errors.
Following the preparation procedure outlined in 4.1.1. “Preparations”, you can now update your system:
Boot the system as for the installation, described in 1.1. “System Start-up for Installation”. In YaST, choose a language and select . Do not select .
YaST determines whether there are multiple root partitions. If there is only one, continue with the next step. If there are several, select the right partition and confirm with 4.1.1. “Preparations”). YaST reads the old fstab on this partition to analyze and mount the file systems listed there.(/dev/hda7 was selected in the example in
In the following dialog, either choose to update only the software that is already installed or to add new software components to the system (upgrade mode). It is advisable to accept the suggested composition, for example,. Adjustments can be made later with YaST.
If you encounter difficulties with the automatic hardware detection of YaST, initialize the update from linuxrc. See 3.1. “linuxrc” for information.
Regardless of your overall updated environment, you can always update individual packages. From this point on, however, it is your responsibility to ensure that your system remains consistent. Update advice can be found at http://www.suse.de/en/support/download/updates/.
Select components from the YaST package selection list according to your needs. If you select a package essential for the overall operation of the system, YaST issues a warning. Such packages should be updated only in the update mode. For example, many packages contain shared libraries. If you update these programs and applications in the running system, things might malfunction.