I am putting the block-chain on a external drive and i was looking to save some space and speed it up by defraging it. When i opened up the windows built in dive optimisation thing and analysed it it said it was 70% fragmented. That is alot and i am not sure weather its picking up the block-chain and thinking its fragmented or it is actually that bad (I shouldn't be because i formatted the drive before i started this a few days ago).

After many mistakes I finally managed to get this working with my Antminer U2. If anyone else is trying this then this is what i did to get it to work(If you have a different device it might be different but Antminers should be very close if not the same):

[SSH to rasberry pi]
sudo apt-get update
sudo apt-get upgrade
sudo apt-get install libusb-1.0-0-dev libusb-1.0-0 libcurl4-openssl-dev libncurses5-dev libudev-dev libtool automake pkg-config libjansson-dev tmux
cd
sudo git clone https://github.com/ckolivas/cgminer.git
cd cgminer
sudo ./autogen.sh
./configure --enable-icarus
sudo make
sudo make install
tmux
cd
cd cgminer
cgminer
[Enter pool url]
[Enter pool username.workername]
[Enter password]
If you encounter any errors tell me and i can try and help.

Yeah i am just going to do bitcoins instead because i found loads of hardware that i can afford

Has anyone found cheap (£30-£50) litecoin mining. I am new to litecoin mining and right now im using a gpu(ik its not profitable.) I can only find hardware for bitcoins. Correct me if i am wrong but i don't think that would work.

I have just started mining litecoin on my AMD graphics card to learn about how it is done. Sometimes my hash rate is displayed and i get shares and sometimes it is 0 even though it shows that the miner is active . Is this normal? If not can somebody tell me how to fix it?