7

Type "ldconfig" to update the links


7

I set up my rasp pi b+ and U3 mining rig using the instructions in this forum post, with screen and cgminer. The command relevant to over clocking the raspi that I used is the following: sudo ./cgminer --bmsc-options 115200:0.57 -o POOL -u USERNAME -p PASSWORD --bmsc-voltage 0800 --bmsc-freq 1286 Those last two options (bmsc-voltage and bmsc-freq) are ...


5

You can try to "auto-manually" add your GPUs to bfgminer by pressing M then + and then typing auto, or you can use the -S opencl:auto option when launching bfgminer. NOTE: Not all graphics cards are compatible; various software is required (e.g., AMD APP sdk); it is not recommended to use GPUs for bitcoin mining with bfgminer. According to README.GPU, the ...


4

bfgminer is a fork of cgminer. bfgminer allows the use of Get Block Template (less trust in the pool), but they're otherwise functionally the same.


3

-S all will attempt autodetection.


3

Each column is as follows: The number of devices and processors currently mining Hottest temperature reported by any processor 5 second exponentially decaying average hash rate An all time average hash rate An all time average hash rate based on actual nonces found, adjusted for pool reject and stale rate The number of Accepted shares The ...


3

Put start cmd /k bfgminer -S opencl:auto in a batch file.


3

The following program will show you the OpenCL-capable devices on a given Macintosh: // clang -framework OpenCL dumpcl.c -o dumpcl && ./dumpcl # include <stdio.h> # include <stdlib.h> # include <OpenCL/opencl.h> int main(int argc, char* const argv[]) { cl_uint num_devices, i; clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, 0, ...


3

Bitcoin mining is principally an integer maths task, not a graphics task. It just so happens that the hundreds of processors found on modern graphics cards can sometimes be suitable for parallel calculation of the bitcoin task, at upwards of a hundred times the best available rate from four cpu calculations. See wiki reports on bitcoin hardware for ...


3

You can run a miner on a CPU, you just won't generate any measurable revenue. But as an experiment, it's certainly possible to do. I run cgminer on a CPU as an integration test for one of my node.js modules. This is a rough outline of the steps you can go through to install an older, CPU-supported version of cgminer on your computer: https://github.com/...


3

Now, if I discover a block, won't both my localhost GBT "pool" and the remote pool claim it as theirs? No. That isn't possible. Changing the coinbase transaction (what controls where a block reward goes) invalidates the block. All that happens is that the block propagates slightly faster. Cheating on pooled mining This appears to be known as the "...


3

You are using an ancient version of bfgminer CPU mining was disabled by default even in bfgminer 3.10.0, your gpu doesn't seem to get detected You're about 4 years late for CPU mining and 3 years late for GPU mining: Even if you get bfgminer to run, your PC will not be powerful enough to even find shares that would be accepted by a pool. See e.g. Can I do ...


2

This is covered in the included README document.


2

It could be bitcoind: Long Polling is enabled on BFGMiner by default (at least on *NIX), as it's rather useful for pooled mining. But bitcoind seems to not support it yet, so you'll need to disable it. That can be done with switch --no-longpoll And you might try --no-getwork And/or --no-gbt It could be a driver: The Block Erupter COM can be downloaded ...


2

Download the bfgminer source code, extract the source, change directory into it. Then: $ dpkg-buildpackage -uc -us -rfakeroot And it'll build a package you can install on Debian Wheezy. You will need to install "dpkg-dev" for dpkg-buildpackage and all the build dependencies, which you'll find out by running the dpkb-buildpackage command.


2

GNU Screen is often the ideal tool to run interactive programs in the background. You can also run it with --syslog and/or --api-listen to have a more traditional daemon-type process.


2

You need to use cgminer-3.7.2 or earlier. For some reason, GPU mining was removed from subsequent versions. Cgminer is the best available miner for your purposes. Con Kolivas is one of the world's great programmers, and we are lucky to be able to use his software. Please also be sure to read the file SCRYPT-README to get reasonable performance.


2

CGMiner has removed GPU support, but BFGMiner has not. You can use an older version of CGMiner (i.e., v3.7.2) or GUIMiner or RPCMiner.A GPU is still useful for mining alternate coins such as litecoin, especially if you have a high-end AMD card.


2

The version you are using is the latest version It supports OpenCL GPUs. Which includes Intel HD Graphics 4000. There is no information of Bfgminer discontinuing GPU support anytime soon.


2

It appears that the worker with the more shares/utility is solving low difficulty pool shares, where the other 3 are probably mining at a more appropriate difficulty level. Utility is the measure of how many shares are submitted per minute (diff1*pool difficulty mining at). That suggests further that the unit is working on lower difficulty shares than the ...


2

You are likely running into power limits. Your USB hubs must be powered properly, able to supply the full current all of these devices need to operate.


2

You might be connected to both pools, but only working for one: When you mine, the block you are trying to find contains a recipient address for the block reward. Therefore, a block can only contribute to one mining pool (i.e. the one that would be receiving the reward, if the block was successful). Whenever you find a block, the #allblocks mentioned in the ...


2

I have 2 u3 antminers running on a raspberry pi b+ I could not get my u3 any faster until i used minera software,set to cgminer (offical) with command: --au3-volt 830 --au3-freq 250.0 In the settings menu it will run at 62-63 GH/s. you can download it hear http://getminera.com/


2

According to the release notes, current versions of bfgminer only support FPGA and ASIC mining hardware out of the box. It sounds like you don't have any such devices. CPU and GPU mining are not enabled by default, since they are not economically viable. See the files README.CPU and README.GPU for information about how to enable them if you really want to.


2

Bfgminer is the mining application, the line with the stratum output is the pool that the miner is configured to use. Your address would be a bitcoin address that you own. The worker name and password would be credentials to access your account at the mining pool although most often the password is not used or is substituted with x.


1

Try: "scan" : [ "antminer:clock=x0781" ]


1

This happens with all pools. Some pools measure over a long time and get a fairly accurate hashrate, but it is very slow to react to changes (stop mining, add hashpower, etc.). Other pools measure over a short time and get a more inaccurate hashrate, but one that reflects changes faster. The estimated hashrate isn't affected much by rejected work, unless ...


1

If your device has a temp sensor it will show in the API output and in the Text User Interface that is default when running at the command line


1

I do this by running two copies of BFGMiner and using the --scan parameter to specify which devices are used by each miner. In my case, I have a bunch of USB Block Erupters and a BE Cube. One BFGMiner specifies '--scan none' and '--http-port 8330' to support the BE Cube (which connects over the local network). The other BFGMiner specifies '--scan-...


1

It seems that CPU based mining is not viable any more. Even going to other cryptocurrency, which difficulty level should rise quicker as people mining bitcoin using hardware will mine these too. Ah well, missed the bus :)


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