eosio.system合约部署
eos版本：v1.0.5
操作系统：centos 7
环境：私有链
目的
由于正式链的ram，net带宽，cpu带宽太宝贵，对于测试的同学建议先在私链上进行测试，避免浪费EOS币。
部署
部署是以私有链并且没有创建任何账号和合约为例，如果已经创建账号和部署智能合约，请对号入座跳着看。

//重复1，2创建必备账号
//eosio.token
//eosio.system
//eosio.ram
//eosio.ramfee
//eosio.stake
//默认在代码根目录下执行
//1.创建密钥对
cleos create key
Private key: 5KKibeZ9KX2bR3MZQnTRVx5aGgpGqtsuitkr21FkpwRERuRk4Ym
Public key: EOS7d1YqzyP52FBkfmyu5pLVPpKjWZ4Ld3DZg8997eFLLZWLb7QUL
//2.创建账号
cleos create account eosio eosio.token ${publicKey} ${publicKey}
//部署eosio.token，发布代币
cleos set contract eosio.token ../../contracts/eosio.token/
cleos push action eosio.token create '["eosio","1000000000.0000 EOS",0,0,0]' -p eosio.token
cleos push action eosio.token issue '["eosio","1000000000.0000 EOS","issue"]' -p eosio
//部署eosio.system，报错如下,要保证开头注明的四个账号已经创建
cleos set contract eosio ../../contracts/eosio.system/ -p eosio
Reading WAST/WASM from ../../contracts/eosio.system/eosio.system.wasm...
Using already assembled WASM...
Publishing contract...
Error 3080006: transaction took too long
//注意
./eosio_build.sh -s "EOS"  购买资源的币种，要使用默认的币种，不写则为SYS
//创建交易账号
cleos system newaccount --stake-net "10.0000 SYS" --stake-cpu "10.0000 SYS" --buy-ram-kbytes 3 eosio eosiotest EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV  EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
//查看账号信息,输出资源信息则为部署成功
cleos get account eosiotest
permissions:
     owner     1:    1 EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
        active     1:    1 EOS6MRyAjQq8ud7hVNYcfnVPJqcVpscN5So8BhtHuGYqET5GDW5CV
memory:
     quota:     2.973 KiB    used:     2.926 KiB  
net bandwidth:
     delegated:      10.0000 EOS           (total staked delegated to account from others)
     used:                 0 bytes
     available:        8.145 TiB  
     limit:            8.145 TiB  
cpu bandwidth:
     delegated:      10.0000 EOS           (total staked delegated to account from others)
     used:                 0 us   
     available:        473.5 hr   
     limit:            473.5 hr
     
//给账号转账
cleos push action eosio.token transfer '["eosio","eosiotest","100.0000 SYS",""]' -p eosio
//再将eosiotest转账到eosio，验证资源是否减少
cleos push action eosio.token transfer '["eosiotest","eosio","100.0000 SYS",""]' -p eosio
//再次查看账号信息，发现资源变少
cleos get account eosiotest
问题汇总
Q：部署合约报错：unable to find key
A：4.0以后默认系统币名字是SYS,所以需要发布的代币修改成SYS，或者修改eosio_build.sh脚本中默认名称，重新进行编译（参考下图）

Q：transaction took too long
A：nodeos程序启动时添加max-transaction-time或者修改config.ini对应属性，重新启动nodeos
Q：to account does not exist
A：在部署system合约之前，必须创建三个账号eosio.ram，eosio.ramfee，eosio.stake