[lfs-dev] udev may be optional in some cases

Bruce Dubbs bruce.dubbs at gmail.com
Fri Sep 21 08:36:52 PDT 2012


Armin K. wrote:
> On 21.09.2012 04:00, Bruce Dubbs wrote:
>> I was thinking about udev a bit and did an experiment.  I disabled udev
>> and udev_retry from the boot process.  The system came up just fine.
>>
>
> Today, udev is necesary for hotplugging the devices and handling the
> modules/symlinks/device node ownership. Udev does not create nodes.
> devtmpfs does that nowadays.

I guess that was my point.

>> The console worked, but I didn't try to disconnect or reconnect the
>> (usb) mouse or keyboard.
>>
>> I tried startxfce and the screen came up, but mouse and keyboard did not
>> work.

> I guess you were using evdev driver which does use udev for finding
> mouse/keyboard devices. Try using -keyboard and -mouse input drivers.
> You'll need to configure them via xorg.conf iirc.

Yes, I was using the evdev driver, but it was just an interesting 
academic exercise.  I don't really need Xorg without udev.

   -- Bruce






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