What I'd really like to do is run through the entire setup again, using the latest version of LTSP (4.0) and a newer Linux distro, documenting everything as I go. The Redhat 8 + LTSP 3.0 combo still has some rough edges... like the NIS daemon not restarting automatically after a server reboot (which is fortunately a pertty rare occurence). I probably won't have time to do this until mid-August at the earliest.
If you want to give it a shot before then, download LTSP from ltsp.org; they've got some pretty good documentation on their site as well (though it is of course not specific to F@h). The hardest part was getting the NFS and NIS services both set up properly on the server; these are required in order for the LTSP nodes to share the server's disk.
There are two BIOS settings you need to change on the diskless nodes. First, you need to configure the BIOS such that the mobo will power up as soon as AC is applied to the PSU; this way you don't need to connect anything to the power switch header on the mobo -- the only physical connections to the mobo are the power supply and the network cable. The other change is to enable the onboard NIC's boot ROM, so that the board will boot over the LAN.
I test each board outside of the crate first, with a monitor and keyboard directly attached. Once it is booting LTSP and running the F@h client successfully, it gets mounted in the crate, and any further interaction with it is strictly over the network, using the rsh
(remote shell) command.
Currently, I just power the nodes up, wait for them to boot, and start the folding client manually. I also monitor them manually, by occasionally checking their log files. Longer-term, I'd like to create some scripts that run on the server which will automatically fire up F@h when nodes are powered up, monitor the nodes & alert me if one of them goes down, etc...
Just out of curiosity emkubed, why do you want it to be mobile? So you can easily stash it somewhere out of the way? Throw in a wireless access point, and you could be untethered from the LAN as well!