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I have posted a thread sometime ago about 18.104.22.168 hang at /etc/rc.d/rc.hotplug while boot-up
In actually case it didn't hang. It just seems to hang. It takes EXTREMLY LONG TIME to get pass the /etc/rc.d/rc.hotplug. I discovered this because there was a blackout which outlast my UPS. After I return to my comp after a few days. It manage to boot-up successfully.
A comparison with 2.6.7, 22.214.171.124 is eternity.
I used the same config file from 2.6.7 to compile 126.96.36.199. And also reconfigure it from scratch with the same results.
I agree with gbonvehi about loading modules in rc.modules.
Compile your kernel with hotplugging support on (but not PCI hotplugging - unless you know for sure you can hot swap PCI cards ). It also very useful to compile your USB controller and the HID driver directly into your kernel, because you always want to be able to use your USB keyboard and mouse to talk to your machine. Not so important if you have PS/2 ports and devices available as well.
Maybe I'm wrong but I think hotplug is a misnomer for rc.hotplug and /etc/hotplug. At the least it is wrong that the /etc/hotplug/*.rc scripts refer to recovering "hotplug" events that couldn't be handled earlier in the boot process. Now, detecting a PCI device that was inserted before power on is not hotplugging! PCI is not hot pluggable on 99.9999% of computers -- it requires specialist equipment. You can't just insert a device into an ordinary PCI slot on a running machine
I think the main job of the rc.hotplug is to pick up on lost plug and play (not hotplug) events during boot up, which couldn't be handled previously in the boot process. USB hotplugging (connecting and disconnecting devices on a running machine) works without this script, at least as long as the drivers are already running.
So isn't rc.hotplug just automatic hardware detection that gets your system up and running, but can be discarded if you optimise your kernel and startup scripts? Like Gentoo (genkern vs manual kernel compile)? Or does it do something else which carboncopy and myself should keep in mind?
Last edited by worldwiderob; 09-30-2004 at 03:50 PM.