Update docker on 14.04

http://askubuntu.com/questions/472412/how-do-i-upgrade-docker

# add the new gpg key
$ wget -qO- https://apt.dockerproject.org/gpg | sudo apt-key add -
# edit your /etc/apt/sources.list.d/docker.list
$ vim /etc/apt/sources.list.d/docker.list
# remove the contents and replace with the following depending on your os and version:
# Ubuntu Trusty
deb https://apt.dockerproject.org/repo ubuntu-trusty main


$ sudo apt-get install docker-engine

create a bootable USB stick on Ubuntu

http://www.ubuntu.com/download/desktop/create-a-usb-stick-on-ubuntu

startup disk creator...

Ubuntu 14.04 LTS (Trusty Tahr)

http://releases.ubuntu.com/14.04/

Hadoop 2.x on ubuntu

http://codesfusion.blogspot.com/2013/10/setup-hadoop-2x-220-on-ubuntu.html
http://codesfusion.blogspot.com/2013/11/hadoop-2x-core-hdfs-and-yarn-components.html
http://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/ClusterSetup.html#Web_Interfaces

  Almost the same thing as 1.x, but need to set some environment variables... use start-all.sh/stop-all.sh is fine

$cd ~
$vi .bashrc

paste following to the end of the file

#Hadoop variables
export JAVA_HOME=/usr/lib/jvm/jdk/
export HADOOP_INSTALL=/usr/local/hadoop
export PATH=$PATH:$HADOOP_INSTALL/bin
export PATH=$PATH:$HADOOP_INSTALL/sbin
export HADOOP_MAPRED_HOME=$HADOOP_INSTALL
export HADOOP_COMMON_HOME=$HADOOP_INSTALL
export HADOOP_HDFS_HOME=$HADOOP_INSTALL
export YARN_HOME=$HADOOP_INSTALL
###end of paste

$ cd /usr/local/hadoop/etc/hadoop
$ vi hadoop-env.sh

#modify JAVA_HOME
export JAVA_HOME=/usr/lib/jvm/jdk/

# run grep example...

Hadoop 1.x on Ubuntu

http://hadoop.apache.org/docs/current1/single_node_setup.html#PseudoDistributed
http://wiki.apache.org/hadoop/QuickStart
http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/

1. ssh-keygen, ssh-copy-id
1. install openjdk-7-jdk
2. conf/hadoop-env.sh , JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386
3. conf/core-site.xml, conf/hdfs-site.xml, conf/mapred-site.xml
4. bin/hadoop namenode -format
5. bin/start-all.sh
6. run grep example
7. bin/stop-all.sh

[Note] tested with hadoop-1.2.1, make sure the conf setting is for version 1

HBASE on ubuntu

https://hbase.apache.org/book/quickstart.html

1. install openjdk , JAVA_HOME=/usr/lib/jvm/java-7-openjdk-i386 (conf/hbase-env.sh)
2. bin/start-hbase.sh
3. bin/hbase shell

tweak ubuntu 13.10

http://www.noobslab.com/2013/10/tweaksthings-to-do-after-install-of.html

YouCompleteMe (YCM) for vim

https://github.com/Valloric/YouCompleteMe#ubuntu-linux-x64-super-quick-installation


1. Install Vundel
2. add Bundle 'Valloric/YouCompleteMe' to .vimrc and let use Vundel to install it
3. goto YouCompleteMe folder and ./install.sh

[Note] test on ubuntu 13.10

Ubuntu touch on Nexus 4

https://wiki.ubuntu.com/Touch/Install#Manual_Download_.26_Installation
http://askubuntu.com/questions/316479/what-are-the-3-new-img-files-for-installing-ubuntu-touch-13-10-saucy

1. adb reboot fastboot (or power on + volup + voldown)
2. fastboot flash recovery saucy-preinstalled-recovery-armel+mako.img
3. fastboot flash boot saucy-preinstalled-boot-armhf+mako.img
4. fastboot flash system saucy-preinstalled-system-armel+mako.img

5. boot to recovery

6. Install from zip, saucy-preinstalled-touch-armel+mako.zip

7. boot to recovery

8. Install from zip, saucy-preinstalled-touch-armhf.zip

9. reboot

[Note] The autodeploy.zip seems not work for me, bcz I can not adb when recovery mode, so choose zip by myself

Ubuntu on Nexus 4

http://www.ubuntu.com/phone

Ubuntu 13.10 Saucy Salamander

https://wiki.ubuntu.com/SaucySalamander/ReleaseNotes

Share Ubuntu folder to windows (samba)

https://help.ubuntu.com/10.04/internet/C/networking-shares.html


Still need to set the samba password manually:

sudo smbpasswd -a username

Ubuntu 12.04

Ubuntu sudoer

http://askubuntu.com/questions/7477/how-can-i-add-a-new-user-as-sudoer-using-the-command-line

# adduser xxx
# adduser xxx sudo

Ubuntu on VirtualBox

http://www.psychocats.net/ubuntu/virtualbox/

The next thing to do to make the (currently blank) virtual hard drive useful is to add the downloaded Ubuntu disk image (the .iso) boot on your virtual machine. Click on Settings and Storage. Then, under CD/DVD Device, next to Empty, you'll see a little folder icon. Click that.

Ubuntu 10.10

Ubuntu : sticky note

http://tips.webdesign10.com/ubuntu/tomboy-notes-sticky-notes
http://www.youtube.com/watch?v=XeGIF_Y0pkc

uTouch - Multitouch on Ubuntu

http://www.ehomeupgrade.com/2010/08/19/canonical-announces-the-release-of-utouch-for-ubuntu-os/

Ubuntu : Compile kernel

http://linuxtweaking.blogspot.com/2010/05/how-to-compile-kernel-on-ubuntu-1004.html

Alternative way...

1. cp -vi /boot/config-`uname -r` .config
2. make menuconfig
3. export CONCURRENCY_LEVEL=3
4. make-kpkg clean
fakeroot make-kpkg --initrd --append-to-version=-some-string-here kernel-image kernel-headers
5. sudo update-initramfs -c -k VERSION
6. sudo vi /boot/grub/grub.cfg

Ubuntu : System cleanup

http://techgurulive.com/2009/04/30/how-to-clean-up-unwanted-files-in-ubuntu/


$ sudo deborphan | xargs sudo apt-get -y remove –purge