I have a private blockchain with two accounts in my genesis.json file and tried to unlock both. I tried multiple methods and all failed. I tried
geth --networkid 42 --datadir "~/data/privateEthereum/client" --nodiscover --rpc --rpcport "8042" --port "30303" --ipcpath "~/Library/Ethereum/geth.ipc" --maxpeers 3 --nat=any --rpccorsdomain "*" --unlock "0 1" --password "password0.txt password1.txt"
Solutions?