slub_debug=FPReboot the Raspberry Pi once you’ve added that flag to your /boot/cmdline.txt file.
sudo shutdown -r nowLog back in with the pi user once the Raspberry Pi is finished rebooting.
sudo apt-get install git build-essential libtool libcurl4-openssl-dev libncurses5-dev libudev-dev autoconf automakeNext, clone the git repository for cgminer-gc3355
git clone https://github.com/dtbartle/cgminer-gc3355.gitNext, we’ll build cgminer.
cd cgminer-gc3355 autoreconf -i ./configure --enable-scrypt --enable-gridseed makeOnce the make command finishes, we’re ready to run the mining software. You can also run make install if you want to install the software, but running it out of the build directory works just fine. Plug in the power supply for your ASIC, and connect the ASIC to it. Connect the USB cable to the ASIC and to your Raspberry Pi. Run the mining software by running the following command. The -o option specifies your pool URL, the -u option specifies your username and the workername that you set up for the pool, and the -p option is the password for your worker. There are a couple of options available that are specific to the gridseed ASICs, and those will be placed after --gridseed-options. The freq=850 option sets the clock frequency of the ASIC to 850 MHz. There are other clock options available, but 850 seems to be working best for me. I was getting hardware errors at 900, and a lower average hash rate. I am getting about 360 KH/s with the clock frequency set to 850.
sudo ./cgminer -o stratum+tcp://www.redbaron.us:3333 -u Username.Workername -p yourworkerpassword --gridseed-options freq=850This command needs to be run with sudo in order to access the USB hardware. You can also create another user specifically for mining, or grant the pi user the appropriate permissions if you don’t want to run cgminer as root. When you run this command, you should see output from cgminer showing that it is communicating with the mining pool, and something showing your hash rate. If you’ve gotten this far, and you’re seeing output from cgminer showing a hash rate, congratulations, you’re mining defcoins with your ASIC! There are just a couple more steps to do if you want to let your Raspberry Pi and ASIC continue mining without needing you to be logged in.
echo “nohup /home/pi/cgminer-gc3355/cgminer --real-quiet -o stratum+tcp://www.redbaron.us:3333 -u Username.Workername -p yourworkerpassword --gridseed-options freq=850 &” > /home/pi/startMiner.sh chmod a+x /home/pi/startMiner.shIf you run this command with sudo startMiner.sh, cgminer will run in the background, and will continue running after you log out. If you want to have this run when your Raspberry Pi boots, modify your /etc/rc.local script so that it executes this startMiner.sh script. Your /etc/rc.local file will end up looking like this:
# Print the IP address _IP=$(hostname -I) || true if [ "$_IP" ]; then printf "My IP address is %s\n" "$_IP" fi /home/pi/startMiner.sh exit 0That’s it! You should now have a Raspberry Pi controlling a defcoin mining ASIC, that starts mining as soon as it boots up. For more reading, check out some of the links below.
GAW Miners, GAW Labs, related companies, and Josh Garza are a recurring theme here. The company, GAW Miners, started as a hardware reseller, focused on Scrypt mining, but eventually expanding to SHA256 and Bitcoin.After that, the company seemed to go off the tracks when it launched it’s cloud-mining “Hashlet”. Bitcoin is a distributed, worldwide, decentralized digital money. Bitcoins are issued and managed without any central authority whatsoever: there is no government, company, or bank in charge of Bitcoin. You might be interested in Bitcoin if you like cryptography, distributed peer-to-peer systems, or economics. Bitcoin Wisdom Bitcoin Average Bitcoin Charts Bitcoinity (Markets) Bitcoinity (Data) Bitcoin-Analytics Btc Charts Investing (btc-usd) CNN (xbt) Bfxdata Cryptowat.ch Cryptonica Bitcointicker.co Coinorama Hypron's Chart Layouts Bitcoin Ticker Zero Block Trade Block (Markets) Bitcoin Discussion General discussion about the Bitcoin ecosystem that doesn't fit better elsewhere. News, the Bitcoin community, innovations, the general environment, etc. Discussion of specific Bitcoin-related services usually belongs in other sections. suchmoon from BitcoinTalk who created the thread that exposed GAWMiners as a fraud has recently posted about scrypt.cc: Like the other failed services the company has a very active referral program promoted by true believers who do not seem to care they are promoting an HYIP as long as they get their investment back before the company fails.
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