I get 5000000000000000000 wei from eth.getBalance(eth.accounts[0]), but metamask and etherscan only have 0 wei

[LeftH0ok]

my command

geth console

miner.start(n)

miner.stop()

eth.getBalance(eth.accounts[0])

5000000000000000000

other info

> admin.nodeInfo
{
  enode: "enode://eaa060201315abd56b97ae1bee780078d149f512d54058c4b0ade2a0234768b45a134c24bca9d7c50d7984f27dd6c40f29c12dfafdb63f382c16bfd607a11e98@113.116.33.137:30303",
  enr: "enr:-Ka4QIlu_7P5_ZW-twy-sClnoqg0iyHe_XPELKZntg9zcgN4f846OkG3gVhxK4YMn_l7Um8X4n-kGPMU_ora_19xTZmGAYTg_t22g2V0aMrJhPxk7ASDEYwwgmlkgnY0gmlwhHF0IYmJc2VjcDI1NmsxoQLqoGAgExWr1WuXrhvueAB40Un1EtVAWMSwreKgI0dotIRzbmFwwIN0Y3CCdl-DdWRwgnZf",
  id: "92493d7eb3fd38e865bad06272ea6fa5121d2c9df514d17599dd60d81a795ffb",
  ip: "113.116.33.137",
  listenAddr: "[::]:30303",
  name: "Geth/v1.10.26-stable-e5eb32ac/linux-amd64/go1.18.5",
  ports: {
    discovery: 30303,
    listener: 30303
  },
  protocols: {
    eth: {
      config: {
        arrowGlacierBlock: 13773000,
        berlinBlock: 12244000,
        byzantiumBlock: 4370000,
        chainId: 1,
        constantinopleBlock: 7280000,
        daoForkBlock: 1920000,
        daoForkSupport: true,
        eip150Block: 2463000,
        eip150Hash: "0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0",
        eip155Block: 2675000,
        eip158Block: 2675000,
        ethash: {},
        grayGlacierBlock: 15050000,
        homesteadBlock: 1150000,
        istanbulBlock: 9069000,
        londonBlock: 12965000,
        muirGlacierBlock: 9200000,
        petersburgBlock: 7280000,
        terminalTotalDifficulty: 5.875e+22,
        terminalTotalDifficultyPassed: true
      },
      difficulty: 34351349760,
      genesis: "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
      head: "0x7538e0ccb20ceadf067eb4cdf21473239452a9dd7b9fe1fb59f01b8eea287896",
      network: 1
    },
    snap: {}
  }
}

------------------------------

> web3.version.getNetwork(function(err, version) {console.log(version);})
1
undefined

[LeftH0ok]

what should i do

[karalabe]

Your chain has nit finished syncing, so you just mined block #1 :) You need to syn first before "mining". Also, Ethereum switched over to PoS, so there's no PoW mining any more on mainnet.