Hi there !
Due to some reasons i reinstalled my ubuntu, so i face the backup & restore issue:
i copy all files under ~/.ethereum and moved them to new installed ubuntu with same directory : ~/.ethereum
now i fire up the geth using
geth --rpc console and it starts to sync the blockchain and i set the coinbase,
so if now i mine with ethminer -G , it will mine on the correct blockchain ? and would commit the
mined block to the mainstream blockchain ?
Am i understanding well ?