Recently, I stumbled upon the following issue while installing a Python utility on an older CentOS system: 1# python setup.py install 2Traceback (most recent call last): 3 File "setup.py", line 102, in 4 'katprep_snapshot=katprep.snapshot:cli', 5 File "/usr/lib64/python2.7/distutils/core.py", …

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Doing a recent Puppet agent upgrade from version 3.x to 4.x I stumbled upon the following errors: 1Puppet (warning): Unable to fetch my node definition, but the agent run will continue: 2Puppet (warning): Could not find terminus rest for indirection node 3/File[/var/lib/puppet/lib] (err): Failed to generate additional …

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VirtualBox enjoys great popularity where it is required to virtualize common operating systems for conventional use-cases at no cost. In comparison with other hypervisors such as VMware Workstation, VirtualBox only offers basic graphics acceleration - which is sufficient for classic desktop applications. During a …

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Leveraging SNMP is often a pain when appropriate MIB files (Management Information Base) are missing - e.g. because the manufacturer did not document them or only offer them at fee. When utilizing a Perl program recently, I stumbled upon the following issue: Cannot find module (SNMPv2-SMI): After ensuring that missing …

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Recently I needed access to a HP Management Processor (MP) without knowing the appropriate IP address. A possibility is to utilize a serial connection to the MP - but this is kinda complicated if you don't have any physical system access. A smarter approach is to find out the IP address using the running operating …

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It is a common procedure to use templates ("golden images") when deploying virtual machines. Recently I had an issue when deploying SLES machines - newly registered systems within SUSE Manager replaced older one. The management agent was installed within the template. For classic systems (registered via RHNSD …

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Recently I had some issues with a Linux cluster running Corosync, Pacemaker and Apache. I was unable to run the redskin as ressource - starting always failed with "invalid parameter": 1# crm resource start apache 2# crm status 3... 42 nodes configured 55 resources configured 6 7Online: [ deb9-node2 deb9-node1 …

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When installing Spacewalk 2.7 under CentOS 7.4 along with PostgreSQL 9.2.23, I recently stumbled upon the following error: 1# spacewalk-setup 2* Setting up SELinux.. 3** Database: Setting up database connection for PostgreSQL backend. 4** Database: Installing the database: 5** Database: This is a long process that is …

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Every Linux user knows the following scenario: a running process should be moved to another terminal. An example: an application update takes longer than expected and the status should be monitored on the go in GNU Screen. It's just nasty, if you forgot to prepare this prior to that. Happily, there are plenty tools for …

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When reinstalling one of my homelab vSphere cluster nodes I noticed again, that the Intel driver ixgbe is not part of the ESXi base image. This driver is needed for my Supermicro mainboard X10SDV-TP8F in order to enable 10G networking. On the VMware download section there is an appropriate download for ESXi 6.0. …

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