I am creating a new alt coin and I want to know how to generate a Blockchain for that coin. I have already created the genesis block for my new alt coin.
you can try the following steps:
After a while (it depends on the difficulty of your altcoin), a new block will be generated by your miner.
Check it by typing "bitcoin-cli getblockcount". Every time a new block is genereated, the value increases by one.
If you're using some form of Proof-of-Work, i believe you have to generate enough transactions that can fill a block. Of course that 1st block will refer to the genesys block. Then other transactions will fill a 2nd block, that will refer to the 1st. And so on.
And voilá, you have the blockchain.
Good luck with your altcoin.