Re: Some question about Udev

["Kevin P. Fleming" <kpfleming@cox.net>]

> On Tue, 2003-08-05 at 00:10, Greg KH wrote:
> 
>>>1. How does Udev deal with the devices that can't be hot plugged ? such
>>>as IDE disk, sound card.
>>>If we want to use Udev to replace /dev, we must also manager these
>>>devices. But these devices are probed at system boot time and will not
>>>trigger the hotplug script, how could we know the existence of them ? 
>>>Could we call the Udev in the init process and go through /sys to create
>>>all devices' files?
>>
>>udev will be called everytime /sbin/hotplug is called, and that is
>>called every time we find a device during the boot process.  I'll put
>>udev into the initramfs image so it too will be present during that
>>time.  This way we will not miss any events.
> 

Greg, how you do foresee the udev database (the tdb file(s)) and the 
/dev nodes it has created persisting across the mounting of the real 
root filesystem? Even if the root filesystem is mounted elsewhere and 
then pivoted onto /, that still means that udev's "state" is going to 
be effectively relocated.



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