How can I check simplest way am I synced with blockchain? When I executed geth attach command and typed in:
100 * eth.syncing.currentBlock / eth.syncing.highestBlock
The outcome sounds about 99.99335...
For an hour I'm waiting on the same block which is not equal to highest block. Should I still wait or am I already synced an I'm able to start mining?
eth.syncing
will give you current block and highest block.