Getting the sound to work on Alienware M17xR4 laptop with Ubuntu 12.10

Getting the sound to work on Alienware M17xR4 laptop with Ubuntu 12.10 and kernel 3.6.0-030600-generic.

I've installed kernel 3.6 from the kernel PPA
#  wget -nd http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.6-quantal/linux-image-3.6.0-030600-generic_3.6.0-030600.201209302035_amd64.deb
 #  dpkg -i linux-image-3.6.0-030600-generic_3.6.0-030600.201209302035_amd64.deb

Edit the file /etc/modprobe.d/alsa-base.conf and add a snd-hda intel line at the end.
snd-hda-intel index=0 model=dell-m6-amic

Reboot

Enjoy both speakers, headphones and sound input works.

Lets replicate ZFS with GlusterFS 3.0.8

Lab example cluster of 2x ZFS server nodes ubuntu and ubuntu2 with ZFS distributed via Gluster in RAID1 fashion.
I saw som strange sized files on the glusterfs client when powering down one of the server nodes deliberately.

Installing GlusterFS
# apt-get install libibverbs1
# wget -nd http://download.gluster.com/pub/gluster/glusterfs/3.0/3.0.8/Ubuntu/glusterfs_3.0.8-1_amd64.deb
# dpkg -i glusterfs_3.0.8-1_amd64.deb

Make sure both server/client nodes have the same /etc/host info
root@ubuntu:~# cat /etc/hosts
127.0.0.1 localhost
192.168.1.120 ubuntu
192.168.1.149 ubuntu2


node ubunu
# zpool create tank sdb
node ubunu2
# zpool create tank sdb

node ubuntu
# zfs create tank/neo
node ubuntu2
# zfs create tank/trinity


# glusterfs-volgen -n myvol --raid=1 ubuntu:/tank/neo ubuntu2:/tank/trinity

Copy config files created by volgen
# cp ubuntu-myvol-export.vol /etc/glusterfs/glusterfsd.vol
# scp ubuntu2-myvol-export.vol ubuntu2:/etc/glusterfs/glusterfsd.vol

Start up Gluster

root@ubuntu:~# /etc/init.d/glusterfsd start
* Starting glusterfs server glusterfsd
...done.
root@ubuntu2:~# /etc/init.d/glusterfsd start
* Starting glusterfs server glusterfsd
...done.

# mount -t glusterfs myvol-tcp.vol /mnt/glusterfs/
# echo morpheus > /mnt/glusterfs/test.file

Thanks LLNL & GlusterFS developers

Installing ZFS in Ubuntu 10.04

This a one row install of ZFS in Ubuntu(tested on 10.04)

# apt-get -y install build-essential gawk alien fakeroot linux-headers-$(uname -r) zlib1g-dev uuid-dev libblkid-dev libselinux-dev parted lsscsi && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 1EE8660B && echo deb http://ppa.launchpad.net/dajhorn/zfs/ubuntu $(uname -r) main > /etc/apt/sources.list.d/zfs.list && apt-get update && apt-get -y install zfs

Asterisk recepie for Ubuntu

This guide will show how to install a small asterisk PBX in the cloud on a VPS that you and your friends can use to call each other for free using SIP applications on Android, Iphone and Ipad. I have tested this configuration with Sipdroid(Android) and Acrobits Softphone(Iphone,Ipad).

$ sudo apt-get install puppet

file asterisk.pp, please change node name styx to your hostname, please change secrets

###########

class asterisk

{

package { "asterisk": ensure => installed }

exec { "sip.conf" : command => "/bin/echo '

[general]

port = 5060

bindaddr = 0.0.0.0

context = default

[1000]

type=friend

secret=1000

#qualify=yes ;latency must be under 2000ms.

nat=yes

host=dynamic ; the devices can be registered with different IPs each time

canreinvite=no ; Asterisk by default redirects

context=internal ; the context of the extensions.conf file

[1001]

type=friend

secret=1001

#qualify=yes ;latency must be under 2000ms.

nat=yes

host=dynamic ; the devices can be registered with different IPs each time

canreinvite=no ; Asterisk by default redirects

context=internal ; the context of the extensions.conf file

[1002]

type=friend

secret=1002

#qualify=yes ;latency must be under 2000ms.

nat=yes

host=dynamic ; the devices can be registered with different IPs each time

canreinvite=no ; Asterisk by default redirects

context=internal ; the context of the extensions.conf file

' > /etc/asterisk/sip.conf"

}

exec { "extensions.conf" :

command => "/bin/echo '

[others]

[internal]

exten => 1000,1,Dial(SIP/1000)

exten => 1001,1,Dial(SIP/1001)

exten => 1002,1,Dial(SIP/1002)

' > /etc/asterisk/extensions.conf"

}

}

node styx

{

include asterisk

}

$ sudo puppet -d asterisk.pp

After this you may need to restart asterisk

$ sudo service asterisk restart