We recently bought a couple HP blade servers. Two of the server have RHEL AS 4 as OS, and will be hosting our HR application. After one and a half day session of up2date, the two RHEL installation are updated.
..And came the bad news. Apparently the HR application requires a much larger space for installation than previously thought. So I was told to do anything necessary to make the requires space auto-magically exist.. sort of..
My plan is to move some folder from their respective partitions, and merge the into one single large partition. The only available option for that is to move my /usr and /var to “root” (/), user the space for the installation. The merging part can easily be done using LVM2. That wasn’t the case for migrating /usr /var. To do that I have to make sure that all security settings and symlink are preserved.
Now, after searching for sometime on google for hints, this is what I do: (more…)
