Category Archives: Linux

Everything about Linux, doesn’t matter which version.

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

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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

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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

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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

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Memorymangement is harder than it is known.

After I thought I understood memory manager after all, this comes along. I have a behavior I can’t understand or explain. Let’s see if anyone can solve the puzzle. You have a machine, lets say with 8GB Ram. You only … Continue reading

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RHEL6.4 and NX

Be careful if you update to RHEL6.4 and you are using NX. RHEL6.4 removes the  keymap.dir and this breaks NX at the moment. To fix this, simply do a touch /usr/share/X11/xkb/keymap.dir. It looks like that RedHat will not fix this, … Continue reading

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Todo after a Fedora upgrade

Even with the new fedup tool to upgrade. There are a couple of commands I use always after an upgrade. I suggest you use them too: yum distro-sync package-cleanup –problems package-cleanup –orphans rpmconf -a -fvimdiff rpmorphan Helps to keep your … Continue reading

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

ArgoEclipse is dead and broken

If you are using ArgoUML and thought “Hey, its written with Eclipse, lets try using it inside Eclipse”. I’m pretty sure you search found ArogEclipse. Please be aware this project looks very dead. I tried to open an perfectly good … Continue reading

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Two enterprise Linux boxes are talking to each other, or not

I setup a  RedHat Enterprise Box that should serve as a httpd server for a Suse Enterprise Server zypper repository and it don’t work. Simple curl also don’t work. If you use curl -1 or curl -3 it works like … Continue reading

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Enterprise Software

I have seen a lot of broken and bad RPM packages. From vmware packages that contains one big tarfile and the rpm-postscript uncompressed this into a directory. To test scripts from Oracle DB 11.2 that does not detect the 32bit … Continue reading

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