Category Archives: Fedora

qemu/kvm libvirt and trim with Fedora 25

Hi, after more then 10 years of using VMWare Workstation (Starting with VMWare Workstation 5). I’m in the process of moving to KVM/libvirt, but I want to use qcow2 with trim support. I’m using Fedora 25 with virt-manager to create … Continue reading

Posted in Fedora, Linux, Uncategorized | Tagged | Comments Off on qemu/kvm libvirt and trim with Fedora 25

Citrix Reciever and SELinux

Hi Internet, sorry for the longtime being absent from this blog. But marriage and a child takes time and the blog was the first to go. But I will restart writing blog posts today with a project I started a … Continue reading

Posted in Fedora, Linux | Tagged , | Comments Off on Citrix Reciever and SELinux

We need 64bit, everywhere!

Just bought a new 8TB disk drive. Following my standard procedures I run a badblock -w against the disk as burn in test. Running on Fedora 20 on x86_64 I was surprised to see this: badblocks -v -v -w /dev/sdf … Continue reading

Posted in Enterprise Linux, Fedora, Linux | Tagged | Comments Off on We need 64bit, everywhere!

my T-Shirt

root is god selinux is blasphemy

Posted in Enterprise Linux, Fedora, Linux | Tagged | 2 Comments

yum vs. dnf

Sorry for the long silence. I will try to post more often from now on. I playing around with dnf, which is the package manager that should replace yum in the future and had some very nice insight. [root@mysystem ~]# … Continue reading

Posted in Fedora, Linux, Uncategorized | Tagged | 3 Comments

Bachelor Thesis: Centralized and structured log file analysis with Open Source and Free Software tools

After a lot of hard work I finished my bachelor thesis end of August and gave my colloquium end of September. Because of all the other stuff going on in my life I just have now time to upload my … Continue reading

Posted in Enterprise Linux, Fedora, Linux, logs | Tagged , | 1 Comment

uptime madness, or why do you need to reboot just because you replace the harddiscs?

I just got an new HP Microserver for a customer. I only had two 500GB disc available and installed Centos onto it. But now the 4* 3TB discs have arrived and I need to move everything from the 2 small … Continue reading

Posted in Enterprise Linux, Fedora, Linux | Tagged | 1 Comment

Thank you Seth Vidal, my first ansible playbook

I was shocked when I heard about Seth Vidal’s death. Of course I use yum daily, but it brought tears to my eyes, when I was reading my¬† “my TODO List after a install” and realized that Seth was one … Continue reading

Posted in Enterprise Linux, Fedora, Uncategorized | Tagged | 1 Comment

my TODO List after a install

I had to reinstall a couple of machines recently and I had to do the same thing more then once. So I wrote a script,and for my own future self I post it here, as reference. sed -e ‘s:ONBOOT=no:ONBOOT=yes:’ -i … Continue reading

Posted in Enterprise Linux, Fedora, Linux, Uncategorized | Tagged | 3 Comments

Be carefull when updating from RHEL6.1 to RHEL6.4

If you have a RHEL6.1 and try to update to RHEL6.4, you will get some strange errors, about missing libraries. The reason is that ldconfig will not run anymore, because /etc/ld.so.conf.d/kernel-2.6.32-* sepcifies hwcap 0 till RHEL6.1 and RHEL 6.2 and … Continue reading

Posted in Enterprise Linux, Fedora, Linux | Tagged | Comments Off on Be carefull when updating from RHEL6.1 to RHEL6.4