How big is the current bitcoin blockchain? Because it is still donwloading. Right now with about 2-300 MB per minute. Just trying to estimate how long will it take to download the entire blockchain.
Also, on a CentOS server, what is the linux path the blockchain is written to? Where do I need to make sure I have enough space?
The main data folder, I'm not sure but for linux I think it's ~/.bitcoin. If it is, there'll be a folder called blocks and chainstate. (THESE won't be visible while any bitcoin applications are running). If you're running bitcoin-qt, go to help>debug and see what is listed as the datadir.
The current blockchain size I think is about 120-150GB.
IF that's to big, there's always the -prune option, where you have to specify the size (in MB).
E.G: for 10GB, you want -prune=10000
Thanks. Can I still use the wallet if I do not download the entire blockchain?
If you want to not download the blockchain, this is what lightweight wallets were created for. I'd suggest electrum.
If there's already a substantial amount in the wallet, you'll want to export the private keys. I think the command is something like "dumpprivkey address" from the CLI with the address being the address you want the private key of.
You can then either import or sweep the coins into electrum.