ZoneMinder Forums

I'm attempting to install the newest version of ZM (1.22.3) onto a CentOS Linux server that I have. This server was previously running the 1.22.2 version of the live cd installed on the hard drive, which we implemented to do some impromptu real life testing. Out of the 3 USB webcams we have, 2 of them worked out of the box, however when trying to use version 1.22.3 they were not being recognized as video devices.

Now with the centos being installed, I'm having the same issue with not registering any video devices in /dev/

Since my initial install, I've installed "X Windows" and "Gnome Desktop Environment" as well as gscpa and gv4l via yum. Now my server is booting into a gui with the command 'startx', but still no /dev/video .

I'm not the best with linux and video devices as most of my linux servers are usually run headless, so it's never been an issue. Can anyone shed some light as to why I have no video devices?

You have to rebuild the kernel with v4l enabled. CentOS and RHAS do not enable V4L in their builds nor do they patch or maintain that driver.

I have installed the CentOS PLUS kernel which supposedly enables V4L among other things, however I still cannot get any video devices to show up. I've also had this problem when trying to use the FC6 walk through, and version 1.22.3 of the mandriva live cd...

Any ideas?

Unplug them all, plug one back in and run dmesg in a console.. see what it says about the device. Run lsusb etc.

There are lots of things you can do to diagnose the problem. Deffinaly make sure the kernel is compiled with v4l2, check to make sure USB is working properly.. (you can check this with dmesg again)