Migration from PoA to PoS


This section guides you through the migration from PoA to PoS IBFT modes, and vice versa, for a running cluster - without the need to reset the blockchain.

How to migrate to PoS

You will need to stop all nodes, add fork configuration into genesis.json by ibft switch command, and restart the nodes.
kalychain ibft switch --chain ./genesis.json --type PoS --deployment 3888 --from 200
To switch to PoS, you will need to specify 2 block heights: deployment and from. deployment is the height to deploy the ValidatorSet contract and from is the height of beginning of PoS. The ValidatorSet contract will be deployed at the address 0x0000000000000000000000000000000000001001 at the deployment, like as the case of pre-deployed contract.
Please check Proof of Stake for more details about ValidatorSet contract.
:::warning Validators need to stake manually Each validator needs to stake after contract is deployed at deployment and before from in order to be a validator at the beginning of PoS. Each validator will update own validator set by the set in the ValidatorSet contract at the beginning of PoS.
To find out more about ValidatorSet, visit the Set up and use Proof of Stake . :::