On Wed, 2002-02-20 at 22:14, mdevin wrote: > I need to change the ownership of my 2nd serial port for nut to work > properly with my ups. I am using devfs which is enabled at boot. > > I can set the ownership with a command like: > chown root.nut /dev/tts/1 > That works no problem, but I need it to continue to have those > ownerships when the computer is rebooted. > > Now, I have looked in /etc/devfs but there are several files here which > it seems I can edit. > > For example there is a file called /etc/devfs/perms, but this seems to > register old style device names and is used by devfsd. > > There is also another file called: /etc/devfs/conf.d/devfs_extra_perms > And it seems most probable since it has the following lines in it: > # serial devices (temporary - later I will make a hack to the MAKEDEV parsing) > REGISTER ^tts/[^/]*$ PERMISSIONS root.dialout 0660 > > But again I am not sure if this is where I need to change it since it > seems to be a file that is generated by a package and will thus be > overwritten later when the package is updated. > > Also, I would prefer to change the devfs configuration rather than just > the devfsd one. Since I may be able to do without devfsd if I can get > everything configured properly. > > Can someone tell me the correct Debian way of changeing device > ownerships permanently. > > Cheers. > Mark.
devfsd.conf contains these lines: # Include the compatibility symlinks OPTIONAL_INCLUDE /etc/devfs/compat_symlinks # Include the standard permissions settings for devices INCLUDE /etc/devfs/perms # Include package-generated files from /etc/devfs/conf.d OPTIONAL_INCLUDE /etc/devfs/conf.d Which should allow you to place your own file in the conf.d directory that will be applied after the perms file is parsed. I created a file in the conf.d directory for my system that contains the following lines: REGISTER ^tts/0 PERMISSIONS root.nut 0660 REGISTER ^ttyS0 PERMISSIONS root.nut 0660 Just alter to suit your needs. You'll probably want to restart devsd to make sure it will work. For some reason I remember having to run update-devfsd to cement the changes. I don't completely understand it all but I think this is what you need to do. I've got nut and devfsd working well together. --mike
