You can visit the Github repository to view the package contents. If you specify the –HEAD (two dashes) parameter for brew install then the latest source-code will be pulled for the miner from Github rather than using the latest official release. Once Homebrew is successfully installed, you can run the following commands to install cgminer and bfgminer: While that was necessary at the time, after some reading and experimenting with Homebrew I was able to create packages (called formulas with Homebrew) for installing cgminer and bfgminer on OS X 10.8. In my previous post I indicated that it was necessary to compile cgminer and bfgminer from their source code in order to install them on OS X. Make sure you address any errors or warnings before proceeding as they may prevent the miners from installing. Open up Terminal.app and run the following command (from the Homebrew homepage):Īfter you install Homebrew, make sure you run the following command (as the installer should instruct you): It is similar to MacPorts for OS X or apt for Linux. Homebrew is a package manager for OS X that provides a sane way of installing *nix tools, libraries, and their dependencies. If the text next to Xcode Command Line Tools says Installed, carry on to the next step. Click the Downloads tab and then click Install next to Command Line Tools. Launch Xcode and then click the Xcode>Preferences menu item. Next you’ll need the Xcode Command Line Tools. Xcode is a free download from the Apple App Store. To get started, you will need to install the Xcode. Both miners offer similar performance in my experience. However, I have had good luck with both tools and have worked with both authors in order to fix a crash ( cgminer, bfgminer) related to multiple GPU’s on OS X and have no complaints whatsoever. Now, I have no dog in this fight, but my understanding is that the teams aren’t on great terms. The bfgminer project is a fork of the cgminer project. These are native C miners and, paired with the right kernels, their performance exceeds the other two miners by quite a wide margin. For that you’ll want to look at cgminer and bfgminer. However, while these miners are relatively easy to install and use, they do not offer the best performance when it comes to hash rates. You can download cgminer 3.5.In my previous two posts in this series I introduced two easy-to-use bitcoin miners for OS X: BitMinter and GUIMiner. Edit and run the included LTC_ONLY.bat file from the cgminer 3.5.0 archive provides, it should autodetect the available devices and start mining on them If you have multiple 1-chip GC3355 DualMiner USB devices connected you may need to repeat the procedure for all of them From the Dropdown list of devices select Dual RS232-HS (Interface 1) and click on Replace Driver with the WinUSB driver selected From the Dropdown list of devices select Dual RS232-HS (Interface 0) and click on Replace Driver with the WinUSB driver selected Select Options and choose List All Devices Download and run the latest version of Zadig In order for this to work properly you will need to replace the USB to COM driver with the WinUSB driver by using the program Zadig. With cgminer 3.1.1 you had to select the virtual COM port that the USB ASIC attaches to when you install its drivers, but the new cgminer 3.5.0 does not use virtual COM port, but addresses the device as a USB one and should be able to autodetect it. Note that this version of cgminer miner is also NOT compatible with the 5-chip GridChip GC3355 ASIC miners! Have in mind that this version of cgminer 3.5.0 is compiled only for use for scrypt mining with the single chip DualMiner USB Scrypt ASIC devices, it will not work on video cards or other ASCI devices. This new version provides more up to date features and should be more stable and user friendly for use, but there is one important difference in the way you need to access your single chip Gridseed USB ASIC with the new cgminer 3.5.0. There is a newer version of cgminer 3.5.0 modified for use with with the single chip DualMiner USB Scrypt ASIC that we have compiled it for windows users and you can download it form the link below. The DualMiner USB Scrypt ASICs using a single GridChip GC3355 processors do come with a modified version of cgminer 3.1.1 supporting the device, but this is already quite old version of the software.
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