add a news item about the new RTAI kernel

_posts/2015-11-29-new-rtai-kernel.md

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+---
+layout: post
+title: 'New RTAI kernel'
+date: 2015-11-29 10:33:31.000000000 -07:00
+---
+New RTAI kernel packages are available for Debian Jessie, based on Linux
+3.16.7 and RTAI 5.0-test1.
+
+This new realtime kernel is not ready for widespread deployment yet.
+I'm soliciting early testing from developers and advanced users who
+are comfortable manipulating apt sources, installing kernel packages,
+and building linuxcnc from source.
+
+In order to test it, you need to install
+Jessie (i386) using the regular [debian.org
+installer](http://cdimage.debian.org/debian-cd/8.2.0/i386/iso-cd/), add
+"deb http://linuxcnc.org jessie base" to your sources.list, install the
+linux-image and rtai-modules packages from there, and reboot.
+
+There are no debian packages of LinuxCNC for this new platform yet, but
+the branch "rtai-5" in our git repo works on it.
+
+Report any results, success or failure, on IRC (#linuxcnc-devel) or on
+the developers mailing list.