fatal error when try to serve geth in ipc

Question

I have initialized my own genesis block and started
geth --datadir pom

Then I want to use "personal" so I started
geth --nodiscover --ipcpath pom/geth.ipc --networkid 31337 --rpc --rpcaddr 192.168.225.235 --rpcport 22000 --rpcapi admin,db,eth,debug,miner,net,shh,txpool,personal,web3,quorum,raft --port 21000

and I'm receiving the error
Fatal: Error starting protocol stack: genesis mismatch: 0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3 (leveldb) !=  (ancients)

I don't understand this error and I'm searching the google and some link says re initialize the chain. So I have deleted and initialize the genesis many times. Can someone help to solve this error? Thank you.

Giuseppe Bertone · Answer

With
$ geth --datadir pom

you are not initializing a custom chain, you are just starting the client on the Mainnet using a custom folder.
To inizialize a custom network you need to use the init parameter with a genesis file, like this:
$ geth --datadir pom init [yourGenesisFile.json]

And after that you need to pass the custom folder value - pom in your case - even when running the client, so your command will become:
$ geth --datadir pom --nodiscover --ipcpath pom/geth.ipc --networkid 31337 --rpc --rpcaddr 192.168.225.235 --rpcport 22000 --rpcapi admin,db,eth,debug,miner,net,shh,txpool,personal,web3,quorum,raft --port 21000

fatal error when try to serve geth in ipc

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