Ubuntu Server 12.04 LTS RocketRaid 26xx DKMS Driver

First, grab the build tools and dkms:
sudo apt-get install build-essential dkms libwww-perl

Download the driver source from Highpoint:
lwp-download http://www.highpoint-tech.com/BIOS_Driver/rr26xx/2640X1-2640X4-2642/Linux/rr264x-linux-src-v1.4-120524-1520.tar.gz

Extract the tar:
tar -zxvf rr264x-linux-src-v1.4-120524-1520.tar.gz
cd rr264x-linux-src-v1.4

Create the DKMS configuration file:
cat >dkms.conf

Cut and Paste the following text:
MAKE="make -C product/rr2640/linux KERNDIR=/lib/modules/${kernelver}/build"
CLEAN="make -C product/rr2640/linux/ clean"
Hit "Control-D" (as in Delta) to close the file.

Run these commands:
sudo cp -R . /usr/src/rr264x-1.4
sudo dkms add -m rr264x -v 1.4
sudo dkms build -m rr264x -v 1.4
sudo dkms install -m rr264x -v 1.4

That should be it, I have not tested this from scratch. There are possibly steps missing, but until I have a clean system to test this is all I have for now.

Major help from CharlesA on the Ubuntu forums http://ubuntuforums.org/showpost.php?p=12014967&postcount=8

Mythbuntu 12.04 MythTV audio buffering issue

I was noticing in my mythfrontend logs, this warning:
ALSA: Setting hardware audio buffer size to 128
ALSA: Error opening /proc/asound/card2/pcm9p/sub0/prealloc: Permission denied.
ALSA: Try to manually increase audio buffer with: echo 128 | sudo tee /proc/asound/card2/pcm9p/sub0/prealloc
ALSA: Unable to sufficiently increase ALSA hardware buffer size - underruns are likely

I've read in multiple places that as long as you have sound, and no problems it is safe to ignore. But I personally do not like to see random errors. There was a reason that the developers are telling you to manually run that line. So... off searching I did. I read in a few places that your user account (the main account you log into MythTV with) should be part of the audio group, welp simple enough run
sudo usermod -a -G audio username

But, that doesn't seem to be good enough. It appears that the /proc/asound directory's are all owned by root. So if I do a little chown -R root:audio /proc/asound; bam the error is gone. But if I reboot that front end, it resets it back to root:root. So I need to make the change stick on startup.

First I wrote a small script that will make the change, and make it stick on reboot. I put all my scripts in one place in my home directory called "scripts" (witty, I know).
So I created a file called ~/scripts/asound.sh
nano ~/scripts/asound.sh

Then I add...
/bin/chmod -R ug+rw      /proc/asound
/bin/chown -R root:audio /proc/asound
exit 0

Let's make that file executable
chmod +x ~/scripts/asound.sh

Now add this to /etc/rc.local

This has solved one of my issues where one of my front end's would stutter when you were on the guide screen, and scrolling up/down.