stateless linux, and read-only root

For FC6 we're looking at bringing forward and integrating some of the Stateless Linux work. More detail will be up at: http://fedoraproject.org/wiki/StatelessLinux although probably not for a couple of days. One of the main tenets of this is that the system filesystems should be able to run read-only; there's no reason for apps to be writing to the system filesystem in general use. However, tracking this can be difficult; you don't want to force everyone to run read-only just to get data on their workloads. So, what we've worked on is a way to simply log what apps are writing to (or trying to write to) the system filesystems. This is now available at: http://people.redhat.com/notting/rolo/ A readme for this is attached. Basically, we're interested in getting logs from a variety of workloads, ranging from basic desktop to server; with this information, we can make sure that a readonly root scenario works for the majority of use cases that someone might want. Right now, reports can go to this list, in this thread or similar. If we need to set up a separate mechanism for recieving them, we can. Bill