hotplug in initrd/initramfs?

hotplug in initrd/initramfs?

[Andreas Jellinghaus]

Hi,

as far as I can tell, the kernel doesn't call
/sbin/hotplug while in initrd/initramfs.

root@earth:/initrd# ls -l sbin/hotplug 
-rwxr-xr-x  1 root root 126 Dec 15 14:42 sbin/hotplug*
root@earth:/initrd# cat sbin/hotplug 
#!/bin/sh

( echo -- hp $$ begin (initrd) --
  echo $0: $*
  export 
  echo -- hp $$ end (initrd) -- ) > /dev/console

exit 1
root@earth:/initrd# 

works fine in the real /root so I can see every event
happening. but during initrd/initramfs nothing happends.
this is fatal to me, as I need hotplug for usb devices
during that stage. 

Anything I can do about it? or if it should work / I have
a bug: any idea how to see what is going wrong?

thanks for your help.

Regards, Andreas



-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

Re: hotplug in initrd/initramfs?

[Dave Dodge]

On Wed, Dec 15, 2004 at 03:37:04PM +0100, Andreas Jellinghaus wrote:
> as far as I can tell, the kernel doesn't call
> /sbin/hotplug while in initrd/initramfs.

Note that this is just guesswork and I haven't tried any of it:

There was a code change in April 2004 which might have something to do
with this.  Check the call_usermodehelper function near the end of
kernel/kmod.c and see if it has this (the new code):

	if (!khelper_wq)
		return -EBUSY

If the code instead mentions "system_running", I think you'll need a
newer kernel.  The new khelper stuff probably showed up around 2.6.6.

                                                  -Dave Dodge


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now. 
http://productguide.itmanagersjournal.com/
_______________________________________________
Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
Linux-hotplug-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel