createfrom [from-address] upgrade [upgrade-name] false [new-params]

Question

./multichain-cli.exe msis001 createfrom 1ApCtNaicZ6uYwtsoaZezPiR5ixSbmt6DJV1wz upgrade pow false {"pow-minimum-bits":9}
{"method":"createfrom","params":["1ApCtNaicZ6uYwtsoaZezPiR5ixSbmt6DJV1wz","upgrade","pow",false,"{pow-minimum-bits:9}"],"id":"65795770-1647503153","chain_name":"msisthesis001"}

error code: -8
error message:
Invalid custom fields, expecting object

 

When trying to change parameters, I am getting this error, Kindly suggest what I am missing, I tried the url https://www.multichain.com/developers/upgrading-nodes-chains/  to reach to this point and now stucked. If an example is shared, it would help a lot

Answer 1

First, because you are on Windows, you need to escape on the command line differently,. So on Windows the command would be:

multichain-cli.exe msis001 createfrom 1ApCtNaicZ6uYwtsoaZezPiR5ixSbmt6DJV1wz upgrade pow false "{\"pow-minimum-bits\":9}"

Second, please note that the pow-minimum-bits parameter is not upgradable. You can see the upgradable parameters labelled on this page: https://www.multichain.com/developers/blockchain-parameters/

Comments

Thanks for the prompt response, and details related to the updaradable modules, and way to perform it