Roadmaps on the Red Hat Summit 2010 in Boston

Finally Red Hat disclosed the agenda of its summit in 2010. For more informations see http://www.redhat.com/promo/summit/2010/agenda/. RHEL6? Tim Burke of Red Hat will talk about the new features of RHEL6. It sounds like the present, not the future. Does this mean I’m right with my guess that RHEL6 will be released end of June like I wrote in earlier blog article? Roadmaps Count how many times the word “Roadmap” appears in the agenda. It seems to get even more interesting ….Read More

Where the heck is RHEL6?

Release cycle slowed down In the past Red Hat has released a new version of its Red Hat Enterprise Linux (RHEL) roughly every two years. RHEL5 was released on march 2007. Compared to the past release cycle, RHEL6 is overdue since one year. Official information There is only little known about the upcoming features of RHEL6. On the Red Hat Summit 2009, there was a presentation held by Tim Burke which gives just some hints that RHEL6 is actually approaching, ….Read More

Managing CentOS with Spacewalk

Red Hat RHN Satellite In 2003 Red Hat released its RHN Satellite server as a closed source management tool for RHEL and only for RHEL (okay, a legacy support for managing Solaris is available). The satellite is very useful tool for managing systems. Unfortunately it has a quite expensive price tag on it. According to the Red Hats RHN FAQ the bill is USD 13,500/year. Additionally to the RHN satellite subscription fee you need at least a subscription for the ….Read More

Confused about write barriers on file systems…

As ext3 is already known as a very robust file system why is the default mount option still barrier=0? The problem is LVM and the device mapper. They  do not support barriers. When mounting ext3 on a LV, the option barrier=1 it should be ignored and a warning written. So far so good. Trying this brings a lot of confusion. According to a Red Hat bugzilla entry one should get a warning, but no signs of that neither in /var/log/messages nor ….Read More