Bitcoin Forum

I have read the adfruit guide with an lcd screen ansd tried to modify it to work via ssh only but can not get my block eruptors mining. This is what I do:
Or to delete the download and start again with the make while in the topmost cgminer directory
This will delete the entire directory
cd ..

then type rm -rf /cgminer-3.1.1

You probably have all the files but start here anyway

sudo apt-get install libusb-1.0-0-dev libusb-1.0-0 libcurl4-openssl-dev libncurses5-dev libudev-dev

wget http://ck.kolivas.org/apps/cgminer/3.1/ ... .1.tar.bz2    2 & 3!!

tar xvf cgminer-3.1.1.tar.bz2

cd cgminer-3.1.1

./configure --enable-icarus

make


Crucial to look for any errors after the config and then after you run make

We can now test it with   

export DISPLAY=:0


./cgminer   SEE BELOW 1 if nothing

It won't work but it should say can't find any usb devices then continue on by making the conf file and run the last command.

sudo nano cgminer.conf
stratum.bitcoin.cz:3333
.worker1
password


copy the file in and put in your settings now ready to run

./cgminer-3.1.1/cgminer --config /home/pi/cgminer.conf -S /dev/ttyUSB0 -S /dev/ttyUSB1 >/dev/null 2>&1&

troubleshouting
dmesg | grep -i usb

 dmesg | grep -i tty



Those two should show a lot of info maybe copy it all into a doc. Run one and look over the lines for anything suspicious like failures, etc then do the same for tty.



Q: On linux I can see the /dev/ttyUSB* devices for my Icarus FPGAs, but
 cgminer can't mine on them

A: Make sure you have the required priviledges to access the /dev/ttyUSB* devices:

                      sudo ls -las /dev/ttyUSB*

will give output like:

 0 crw-rw---- 1 root dialout 188, 0 2012-09-11 13:49 /dev/ttyUSB0
 
This means your account must have the group 'dialout' or root privileges

To see what groups an account has

                      groups <username>

To permanently give your account the 'dialout' group:
 
                      sudo usermod -G dialout -a `whoami`

Then logout and back in again

1. The first part

./cgminer

It doesn't show any errors? I can't figure out what it's doing it should return something.

You can type

ps aux | grep cgminer

As seen in this pic

 

the second line root 4097, root 4098 look for a line that has cgminer at the end (example shows python Piminer.py look in that spot for cgminer)

Like this one
 

After root is the PID use this line to kill cgminer if it is running

sudo kill 4097

In the first example PiMiner.py is running under the PID of 4097 find the PID of cgminer and kill it.

Also the instructions do show that the conf file is not in the cgminer directory you point to it in the run line

--config /home/pi/cgminer.conf

I missed that part (they do make good tutorials but if you skip a line it's can get messy it seems like you followed it word for word but are getting something not expected)
2.
wget http://ck.kolivas.org/apps/cgminer/3.1/ ... .1.tar.bz2
3. wget http://ck.kolivas.org/apps/cgminer/3.1/ ... .1.tar.bz2




But  everytime I try and run ./cgminer-3.1.1/cgminer --config /home/pi/cgminer.conf -S /dev/ttyUSB0 >/dev/null 2>&1&

Nothing happens apart from

[1] 2191


Does anyone have any ideas please :(

I'll just mention the obvious that you won't get any output if you're redirecting to /dev/null. If you do want to run it in the background and see the output I'd suggest using a log file eg.


./cgminer-3.1.1/cgminer --config /home/pi/cgminer.conf -S /dev/ttyUSB0 >cgminer.log 2>&1&

Then "tail -f cgminer.log" to monitor its progress.

But this doesn't solve your original problem of getting it to mine (sorry).

PS. Its a bit difficult to see from your post which parts you've quoted from the tutorial and which you've actually written yourself, but just to be sure, have you actually tried running the miner interactively ie without the redirects and the final & which places it in background?

./cgminer-3.1.1/cgminer --config /home/pi/cgminer.conf -S /dev/ttyUSB0