A friend of mine called me recently stating that he had a very stripped down (No GUI, minimal packages) version of SUSE linux and wished to install the Apache Web Server. The problem seemed simple enough but the method he chose was a recipe for frustration. He attempted to install the software using source packages he found online. In his attempts at compilation, it complained of requiring other packages such as
apr-utils and even after installing these dependencies it still complained of others.
His distress call was noted and was quite inevitable as an all too familiar dependency hell memory had emerged. I quickly assured him that packages are the way to go, and beyond that, a repository whereby the dependencies would also be resolved without intervention is your best bet.
Package Management commands vary between Linux Distributions but the basic concepts will remain the same
Configure the repository from which the packages can be obtained
Query the repository to ensure that the required package(s) exist(s)
Install the required packages
The repository chosen depends on the version of the Operating System (OS), in this case my friend was using SUSE Linux 11.1.
To add a repo execute the following as the root user.
zypper ar -f http://download.opensuse.org/distribution/11.4/repo/oss/ opensusepack
The above command adds a repository called
opensusepack with files contained at the location
http://download.opensuse.org/distribution/11.4/repo/oss/. It tells the system that when using
zypper to add packages it can locate them along with any dependencies at that online location.
Querying the Repository
zypper search apache
The above command searches configured repositories for any packages containing
Finally to install the Apache Web Server
zypper install apache
In summary, once the repository is configured, we can search for and install any packages that are located in the repository. All necessary dependency and GPG key checks are done automatically and we can immediately begin using the newly installed software.
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