freebsd stable - Nov 2005 - Unable to set device characteristics with devd

I've been trying to use devd for a number of things, but have not gotten
far.

One issue is when I attach an ATAPI disk:
attach 100 {
        device-name "acd0";
        action "/bin/chmod 666 /dev/$device-name";
}

I have similar statements for my second hard drive (ad2s2).

By using the -D option I see the device attach, but the chmod returns
an error indicating that /dev/acd0 does not exist. I get similar results
for other devices.

Is there a delay between the attach event and the creation of the /dev
entry? Am I missing something here? Maybe I should use devfs for this.
-- 
R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman@es.net			Phone: +1 510 486-8634

From: Kevin Oberman
> 
> I've been trying to use devd for a number of things, but have 
> not gotten
> far.
> 
> One issue is when I attach an ATAPI disk:
> attach 100 {
>         device-name "acd0";
>         action "/bin/chmod 666 /dev/$device-name";
> }
> 
> I have similar statements for my second hard drive (ad2s2).
> 
> By using the -D option I see the device attach, but the chmod returns
> an error indicating that /dev/acd0 does not exist. I get 
> similar results for other devices.
> 
> Is there a delay between the attach event and the creation of the /dev
> entry? Am I missing something here? Maybe I should use devfs for this.
The normal tools (chmod, chown, etc.) don't work on devfs.  You need to
create devfs rules to change permissions, ownership, etc. on device nodes.

See devfs.rules(5) and devfs.conf(5).