During a recent system update that I started using Spacewalk I stumbled upon the following error message:

1Fatal error in Python code occurred [[6]]

After some troubleshooting I came up that I upgraded my spacewalk server to the most recenet release a couple of days ago. During this update I forgot to update also the …

Often configuration files are also updated during the installation of newer RPM packages. Using the package manager yum you're informed about that like this:

1# yum update
2...
3  Updating   : osad-5.11.33-1.el6.noarch                                  13/32
4warning: /etc/sysconfig/rhn/osad.conf created as …

To find out the World Wide Name / World Wide Identifier of a Fibre channel controller under Linux you actually have multiple possibilities.

A very common way is to read the /sys directory. In this virtual file system there are e.g. special files which contain further information about the hardware. Below the folder …

Sometimes it is necessary to patch the Linux source code - e.g. after new drivers or security bugfixes have been applied.

As a rule this task is done by your chosen distributor - but maybe you don't want to wait for that (or you like doing this on your own).

I'm currently preparing myself for the LPIC-2 certification - …

When updating the GRUB2 package on a clean install of CRUX Linux I recently stumbled upon the following error:

1# prt-get update grub2
2...
3Pkgfile: line 28: ./grub-mkfont: No such file or directory"

The solution for this issue was simple - the freetype package was missing. This package is needed for generating …

Sometimes it is necessary to break down the patch status of the Linux landscape.

Especially if the administrator's work is subjected to security standards a constant documentation of maintenance tasks is often necessary.

Using Spacewalk, Red Hat Satellite or SUSE Manager available patches are described as errata. Those …

Recently I finished my first ArchLinux installation since 2010. Many things have change since I used the distro the last time and I felt a little bit helpless first.

The former ArchLinux installer isn't used anymore - the experienced Linux user has to prepare the hard drives for the installation on his own. The …

Recently I had a issue when trying to use the OSA dispatcher integrated in Spacewalk, Red Hat Satellite and SUSE Manager. The software was unable to push actions to registered client systems - it seems that there was a problem with the appropriate service:

1# service jabberd status
2router dead but subsys locked
3sm …

Recently I stumped upon the following error while creating GPG keys for signing self-created RPM packages :

1can't connect to `/home/su-rpmdev/.gnupg/S.gpg-agent': No such file or directory
2gpg-agent[14392]: command get_passphrase failed: Operation cancelled
3gpg: cancelled by user
4gpg: Key generation …