Importing a Chain from Geth

When coming from Geth, be aware that the --geth option provides you with the highest degree of compatibility to Geth's behaviour, even at the cost of speed, security, functionality and standardisation.

Parity version 1.3 and above (SnapSync)

If you don't care about historical transaction information, just use our [state-snapshotting](Getting Synced) to get synced really fast.

Parity version 1.2 and above

On 1.2 and above, use Geth's export feature along with Parity's import:

mkfifo /tmp/chain.rlp && geth export /tmp/chain.rlp &;

sleep 1 && parity import /tmp/chain.rlp

Parity versions 1.0 and 1.1

Prior to 1.2, you need to run Parity and then have Geth connect to it. First run Parity without peer discovery and with a simple node key:

echo 00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 > /tmp/nodekey
parity --no-discovery --bootnodes "" --node-key $(cat /tmp/nodekey)

Then run Geth telling it to connect to Parity:

geth --bootnodes "enode://$(cat /tmp/nodekey)@127.0.0.1:30303" --nodiscover --maxpeers 1