Bug#537041: /dev/ch* not created for tape library

[Moritz Muehlenhoff <jmm@inutil.org>]

On Thu, Jul 16, 2009 at 10:55:50AM +0200, Laurent Bigonville wrote:
> reassign 537041 linux-2.6 2.6.26-17
> 
> Le Wed, 15 Jul 2009 10:40:36 +0200,
> md@Linux.IT (Marco d'Itri) a écrit :
> 
> > On Jul 15, Laurent Bigonville <bigon@debian.org> wrote:
> > 
> > > Actually it looks like a /dev/sch0 device is created but I get the
> > > same error: /dev/ch0 is not an sg device, or old sg driver
> > So the driver does not create the device and when you create it
> > manually it does not work. Are you actually sure that this device
> > exists and works with modern kernels?
> > Anyway, either you show that this is an udev bug or you reassign it to
> > the kernel or close it.
> > 
> 
> The device is created with the name /dev/sch0 but looks like there is
> another issue.
> 
> Reassign to the kernel

Support for proper udev autoloading seems to have only been added
as of commit 
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=95f6c83f6c57be92c67247802d0f699137957457

As for Lenny, did you follow the instructions given in
Documentation/scsi/scsi-changer.txt, especially the troubleshooting
section? Maybe it provides some more hints where the problem may be
coming from.

Cheers,
        Moritz