Project: CGMiner 3.4.0 with USB Block Erupters on a 5W pogoplug mobile

Intro
I don't know if anyone needs this, but I'm a supernoob and it took me a while to piece this together. I did not come up with any of this. I used archlinuxarm.org, archlinux.org, cgminer's readme, and some other stuff. If you deserve credit and I forgot, sorry - feel free to take it :-)

Apologies if this is useless - I'm only posting because I needed a guide this simple. It's probable that no one else does. This is my first post - take it easy on me Undecided

Constructive criticism is always welcome.

WARNING: following these directions will void warranties, destroy cities, and ultimately cause an early apocalypse.

Synopsis
I wanted a standalone, low-wattage miner that could scale and was fun to experiment with. I wanted it to restart mining when interrupted. I didn't want to buy a raspberry pi because I figured I'd destroy a few pieces of technology accidentally so I opted for things I could mostly get locally. I decided on a pogoplug mobile (as of 8/30, available via ebay at $15 each free shipping) and a powered usb hub.

Background

I am new to most concepts here, including linux, bitcoin, and cryptography
I don't fully understand how bitcoin works, but I understand enough to appreciate and enjoy it
I've used ubuntu in the past, and I understand (VERY) basic bash commands

My (Humble) Setup

USB Block Erupters
USB 2.0 Powered Hub from Office Depot (~$27 US with tax - find a better hub!)
1 PogoPlug Mobile from Radio Shack (On sale $21.39 US with tax)
8 GB USB thumb drive (On sale $5.32 US with tax at WalWart)

What I Did
Step 1 - Arch Linux

Register device via pogoplug.com/activatep
Enable SSH: my.pogoplug.com -> security tab -> checkbox
Plug in new USB Drive for arch installation (no usb hub)
Power On
Check Router DCHP Clients Table for IP Address of "Pogoplug Mobile"
SSH into pogoplug (I used putty for Winblows 8 )
Stop pogoplug software

Code:

killall hbwd

Start fdisk to partition usb2 or sata drive:

Code:

/sbin/fdisk /dev/sda

Type o (clear partition table)
Type p (list partition table - confirm there are none)
Type n (new partition)
Type p (primary)
Type 1 (first partition)
Press enter, accepting default value
Press enter again, accepting default value
Type w (exit, writing changes)
Create ext3 filesystem

Code:

cd /tmp
wget http://archlinuxarm.org/os/pogoplug/mke2fs
chmod +x mke2fs
./mke2fs -j /dev/sda1
mkdir alarm
mount /dev/sda1 alarm

Download and install Arch Linux ARM:

Code:

cd alarm
wget http://archlinuxarm.org/os/ArchLinuxARM-armv5te-latest.tar.gz
tar -xzvf ArchLinuxARM-armv5te-latest.tar.gz  # This will take a long time
rm ArchLinuxARM-armv5te-latest.tar.gz
sync  # Takes a while if you are using a flash drive

Unmount Drive:

Code:

cd ..
umount alarm

Install U-boot bootloader and reboot

Code:

cd /tmp
wget http://archlinuxarm.org/os/ppv4/ppv4-install.sh
chmod +x ppv4-install.sh
./ppv4-install.sh
/sbin/reboot

Step 2 - Install wget, screen, and base-devel

Wait for pogoplug to restart, then ssh in (check router again - it's now called "alarm", not "pogoplug mobile") with user/pass root
Install the following packages with pacman (it will ask you y or n questions)

Code:

pacman -S wget
pacman -Syu base-devel
pacman -S screen

Step 3 - libusb/cgminer

Code:

cd /home
mkdir miner
cd miner
mkdir cgminer
cd cgminer
wget http://ck.kolivas.org/apps/cgminer/cgminer-3.4.0.tar.bz2
tar xvjf cgminer-3.4.0.tar.bz2
cd cgminer-3.4.0
mkdir libusb
cd libusb
wget http://sourceforge.net/projects/libusb/files/libusb-1.0/libusb-1.0.16-rc10/libusb-1.0.16-rc10.tar.bz2
tar xvjf libusb-1.0.16-rc10.tar.bz2
cd libusb-1.0.16-rc10
./configure
make 
cd ../..

Build cgminer

Code:

CFLAGS="-O2 -Wall -march=native" LIBUSB_CFLAGS="-I./libusb/libusb-1.0.16-rc10/libusb" LIBUSB_LIBS="./libusb/libusb-1.0.16-rc10/libusb/.libs/libusb-1.0.a -ludev" ./configure --enable-icarus
make install

turn off pogoplug, Plug in usb hub, plug in usb drive
start cgminer - replace with your options

Code:

cgminer -o URL:PORT -u USER -p PASS --lowmem # ONE POOL

Code:

cgminer -o URL1:PORT1 -u USER1 -p PASS1 -o URL2:PORT2 -u USER2 -p PASS2 --lowmem # TWO OR MORE POOLS

Plug in Block Erupters (They should appear and start hashing - ensure they're working)
Press s for settings
Press w for write
For file name, type /home/miner/cgminer.conf
Press q to quit

Step 4 - Create startup scripts and enable them

Switch to the miner directory and start a new file:

Code:

cd /home/miner
nano auto.sh

Type the following into nano, then press CTRL+o (to write the file Out) then CTRL+x (to eXit nano):

Code:

#!/bin/sh
screen -dmS miner /home/miner/cgminer/cgminer-3.4.0/cgminer --config /home/miner/cgminer.conf

Create service file

Code:

cd /usr/lib/systemd/system
nano cgminer.service

Enter the following, then CTRL+o, then CTRL+x:

Code:

[Unit]
Description=Start cgminer

[Service]
User=root
Type=oneshot
ExecStart=/bin/sh /home/miner/auto.sh

[Install]
WantedBy=multi-user.target
Enable the service:

Then enable the service:

Code:

systemctl enable cgminer.service

Finally, change your root password:

Code:

passwd

Results
When you turn the pogoplug on, it will automatically start mining. To see what's up with cgminer, ssh in and type screen -r to reattach the screen session. When you're done, Press CTRL+A then CTRL+D to detach.

Hope this helps at least one person.