Random hangs during installation

[Per Foreby]

Using fai-kernels 1.17+etch2 the installation hangs at random points 
during the installation. Sometimes it hangs during boot, typically at 
"Waiting for /dev to be populated". Other times it hangs during package 
transfer och some other point. As far as I can see, it looks totally 
random, and happens on all sorts of hardware.

The computer is totally hanged (unpingable, keyboard dead.)

If I install a computer lab with 12 computers, typically 5 hang. After 
restarting the five, maybe two hang. An installation that should take 20 
minutes takes hours this way.

I have no custom kernel options, just stock configuration from the 
examples.

Sorry if this is a FAQ, but I don't really have time to keep upp with 
the fai discussions between the major releases.

/Per