[systemd-devel] What does udevd do

[Greg KH]

On Sun, May 31, 2015 at 10:26:46AM +0800, cee1 wrote:
> 2015-05-31 5:52 GMT+08:00 Lennart Poettering <lennart at poettering.net>:
> >> Then udevd is only responsible for
> >> 1) Making nodes, and doing other device initialization stuffs.
> >
> > udev does not create device nodes. That's the job of devtmpfs in the
> > kernel. udev will however apply access modes/acls/fix ownership create
> > symlinks and so on.
> 
> That means ** all ** dev nodes are there when devtmpfs is mounted?

Yes.

> I thought devtmpfs makes a limited number of nodes for early boot-up.

Nope, try it out and see for yourself :)

greg k-h