kubicle

One fine day I get an email from an engineer. Apparently he removed glibc, no idea what he was doing but I was asked to somehow rebuild the box and preserve data. The problem was, we weren’t able to log into the system. Single user mode didn’t work either so now I’m [...]

Having to install any software and then configuring it so that it fits into your environment can be a pain in the butt. Especially if you have to roll it out to hundreds of servers. One such software is nagios’ nrpe client. After every install, I had to modify the nrpe.conf file to allow [...]

The other day I had to modify the resolv.conf file on all my servers. That’s 117 virtual machines, 40 physical servers along with another 20 located off-site. With ten servers I probably could’ve gotten away with copying the modified version onto each server using a for loop from the command line. Tedious [...]

This is how you create a minimal boot disk to get RH’s installation going.
You’ll need a repository to where your images reside (via HTTP or NFS).
Copy the “isolinux” folder to a temporary space.

cp -r
/isolinux/ /tmp/isolinux (i placed it inside /tmp)

Change to the /tmp directory and give the items the following permissions

chmod u+w isolinux/*

Create the ISO

mkisofs [...]