CentOS7门罗币配置

首先关闭CentOS的SELinux功能和防火墙

建议升级gcc到7.3

安装环境

yum install centos-release-scl epel-release
yum install cmake3 devtoolset-7-gcc* hwloc-devel libmicrohttpd-devel openssl-devel make git -y
scl enable devtoolset-7 bash
git clone https://github.com/fireice-uk/xmr-stak.git
mkdir xmr-stak/build
cd xmr-stak/build
cmake3 -DCMAKE_LINK_STATIC=ON -DXMR-STAK_COMPILE=generic -DCUDA_ENABLE=OFF -DOpenCL_ENABLE=OFF ..
make install

如果出现错误

[root@xuan xmr-stak]# cmake3 . -DCUDA_ENABLE=OFF -DOpenCL_ENABLE=OFF
CMake Error at CMakeLists.txt:36 (message):
  g++ version must be at least 5.1!


-- Configuring incomplete, errors occurred!
See also "/root/xmr/xmr-stak/CMakeFiles/CMakeOutput.log".

但是查看g++的版本却是

[root@xuan build]# g++ --version
g++ (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

这种情况可能是操作中，把GCC旧版本的4.8.5的信息记录到CMakeCache.txt，升级后GCC 7.3.1后，CMakeCache.txt中的历史信息影响cmake的判断，因此需要把CMakeCache.txt文件删除，并重新执行命令：cmake … 。

编译好了以后,我们就到 bulud/bin 目录下面执行 ./xmr-stak 就可以了 .如图

[root@xuan bin]# ./xmr-stak 

Use simple setup method? (Y/n)
y
Configuration stored in file 'config.txt'
Please enter:
- Please enter the currency that you want to mine: 
    - bbscoin
    - bittube
    - cryptonight
    - cryptonight_bittube2
    - cryptonight_masari
    - cryptonight_haven
    - cryptonight_heavy
    - cryptonight_lite
    - cryptonight_lite_v7
    - cryptonight_lite_v7_xor
    - cryptonight_r
    - cryptonight_superfast
    - cryptonight_turtle
    - cryptonight_v7
    - cryptonight_v8
    - cryptonight_v8_double
    - cryptonight_v8_half
    - cryptonight_v8_reversewaltz
    - cryptonight_v8_zelerius
    - cryptonight_v7_stellite
    - cryptonight_gpu
    - cryptonight_conceal
    - graft
    - haven
    - lethean
    - masari
    - qrl
    - ryo
    - torque
    - plenteum
    - zelerius

输入相关信息后就进行挖矿了，如果后面要修改配置，可以编辑pools.txt，config.txt后重新启动就可以了

但是如果需要后台常驻挖矿，可以先安装screen，之后再screen中运行挖矿程序：
yum -y install screen
screen
./xmr-stak
之后ctrl+A，松开后按下d，实现后台挖矿。如果要查看screen的运行程序，可以输入

screen -ls

查看挖矿效率，可以进入nanopool，在右上角粘贴进自己的钱包地址之后搜索来查看挖矿结果
https://xmr.nanopool.org/#

# 后台运行
nohup ~/xmr-stak/build/bin/xmr-stak &

# 关闭
ps -a|grep xmr
kill PID

pool.supportxmr.com:5555

修改cpu
vim /root/xmr-stak/build/bin/cpu.txt
# 将cpu的0 1线程用来挖矿，具体的可以根据情况设置，安装时会自动配置，可不更改
"cpu_threads_conf" :
[
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 0 },
{ "low_power_mode" : false, "no_prefetch" : true, "affine_to_cpu" : 1 },
],

总结：cpu方式效率太低了，基本挖不到。

参考：

https://blog.csdn.net/Doudou_Mylove/article/details/109443322

https://zhuanlan.zhihu.com/p/32378890

https://article.itxueyuan.com/E0mnr

https://mengniuge.com/monero-new.html