When you create a channel, you will have the genesis block. Now you have to make this genesis block join the channel and then from the other system run the following commands:
peer channel join -b mychannel.block
peer channel update -o orderer.example.com:7050 -c $CHANNEL_NAME -f ./channel-artifacts/Org1MSPanchors.tx --tls --cafile tlsca.example.com-cert.pem