Got to Step 3-3:
But get the following error ... any thoughts?

pi@raspberrypi ~ $ cd cgminer
pi@raspberrypi ~/cgminer $ sudo chmod +x autogen.sh
pi@raspberrypi ~/cgminer $ ./autogen.sh
./autogen.sh: 6: ./autogen.sh: autoreconf: not found
Configuring...
./autogen.sh: 10: ./autogen.sh: /home/pi/cgminer/configure: Permission denied




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Step 3-3:
Install some packages  needed by dualminer source code
sudo apt-get update
sudo apt-get install libudev-dev libcurl4-openssl-dev
sudo apt-get install vim(Optinal : edit file tool )
Then you can get dualminer https://github.com/dualminer
git clone git://github.com/dualminer/dualminer-cgminer.git cgminer
cd cgminer
sudo chmod +x autogen.sh
./autogen.sh

------------------------------
pi@raspberrypi ~ $ git clone git://github.com/dualminer/dualminer-cgminer.git cgminer
Cloning into 'cgminer'...
remote: Reusing existing pack: 254, done.
remote: Total 254 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (254/254), 3.88 MiB | 1.24 MiB/s, done.
Resolving deltas: 100% (27/27), done.
Checking out files: 100% (221/221), done.
pi@raspberrypi ~ $ cd cgminer
pi@raspberrypi ~/cgminer $ sudo chmod +x autogen.sh
pi@raspberrypi ~/cgminer $ ./autogen.sh
./autogen.sh: 6: ./autogen.sh: autoreconf: not found
Configuring...
./autogen.sh: 10: ./autogen.sh: /home/pi/cgminer/configure: Permission denied