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Meta
Category Archives: Linux
Oracle vs. Centos
As a lot of people have noticed Oracle is offering a “conversion” script to move from Centos to Oracle Linux. Of course it is not really a conversion, it only moves the yum repos from Centos to Oracle. The existing … Continue reading
new packages for my default install
In the last couple of week I added 3 new packages to my default install: 1.) atop is a very good extension of top, it includes disk and network utilization among other things. 2.) mosh is a ssh replacement / … Continue reading
yum behind proxy gets “No more mirrors to try”
Have you ever had the problem with “No more mirrors to try” when behind a caching proxy? Especially with rpmfusion? You tried yum clean all, and still you are not able to download the xml or sqlite db? To fix … Continue reading
Enable serial console with systemd
If you need to enable a serial console on a systemd machine like Fedora 16, you have two possibilities. Start it immediately with: systemctl start getty@ttyS0.service or start it at every boot with: ln -s /usr/lib/systemd/system/getty@.service /etc/systemd/system/getty.target.wants/getty@ttyS0.service
Oracle Linux UEK broken
Hi, after my post Centos vs. ScientificLinux which included Oracle Linux, I played around with OL6. The default kernel running is the “Unbreakable Enterprise Kernel” (UEK). This kernel is based on 2.6.39 and is currently the only Linux kernel that is … Continue reading
Centos vs. ScientificLinux
I’ve been asked by a lot of people why I switched from Centos to ScientificLinux. My feeling was that ScientificLinux delivers security updates faster and more reliably, but feeling is not a good adviser when it comes to security. So … Continue reading
Find deleted files that are still in use
When you disc is full and you delete stuff and the disc is still full, have a look at delete files that are still used by a process. Use the command lsof +L1 for this.
sort -h
A friend just showed me this cool new option for sort. You now can sort with -h, which works great with du -h. du -hs * | sort -h Available since RHEL6 and current Fedora. Sorry no RHEL5.
Weekly Series: Tools you need to know
I wanted to write a weekly series for years. A series of all the cool tools that I show to people very often and allways create a jaw drop. Thanks to Michael for asking the question that reminded me of … Continue reading
Update RHEL5 to RHEL6
Officially Red Hat does not support updates from RHEL5 to RHEL6. If you don’t care about support, or you are using Centos or ScientificLinux this is for you. But as always on the internet, I don’t give any warranties and … Continue reading