From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0) modprobe fails to load ppp module when built into kernel - modutils should *not* be looking for ppp module if it is compiled in and not referenced in modules.conf Reproducible: Always Steps to Reproduce: 1. Build new kernel with PPP support built in rather than as a module 2. ifup ppp0 and ifdown ppp0 3. [watch messages log] Actual Results: Logged Feb 17 05:11:21 tornado modprobe: modprobe: Can't locate module ppp0 Expected Results: This warning message should not have been printed; modprobe should not be looking for this module Adding alias char-major-108 ppp_generic off alias /dev/ppp ppp_generic off to modules.conf worked around the issue, modutils has the alias "alias /dev/ppp ppp_generic" built in by default, an off statement in modules.conf was required I imagine this would be an issue with other components built into the kernel as well that were originally packaged as modules
The alias is needed if it's compiled as a module, though, and that's the default configuration.