The initial command to start the private network is shown as follows:
$ ./geth init ~/ethpriv/privategenesis.json --datadir ~/ethpriv/
It is assumed that in the home directory there is a directory named ethereprivate which contains the privategenesis.json file.
This will produce an output similar to what is shown in the following screenshot:
Private network initialization
This output indicates that a genesis block has been created successfully. In order for geth to start, the following command can be issued:
$ ./geth --datadir ~/etherprivate/ --networkid 786 --rpc --rpcapi 'web3,eth,net,debug,personal' --rpccorsdomain ...
