Setup Testnet

[prosus-money]

@driquelme

[driquelme]

The error I get when I try to start the linux daemon using the --testnet parameter is:

                                                                     
                            PROSUS MONEY                             
                                                                     
 =================================================================   
                                                                     

2021-Dec-02 14:18:05.738784 INFO    Module folder: ./prosus-daemon
2021-Dec-02 14:18:05.738810 INFO    Starting in testnet mode!
2021-Dec-02 14:18:05.740157 INFO    Initializing p2p server...
2021-Dec-02 14:18:05.740260 INFO    Generated new peer ID: 3899158987322942767
2021-Dec-02 14:18:05.740292 INFO    Network: 44525950-544f-4e4f-5445-001210110110
2021-Dec-02 14:18:05.740322 INFO    Binding on 0.0.0.0:16180
2021-Dec-02 14:18:05.740431 INFO    Net service binded on 0.0.0.0:16180
2021-Dec-02 14:18:05.740459 INFO    P2p server initialized OK
2021-Dec-02 14:18:05.740483 INFO    Initializing core...
2021-Dec-02 14:18:05.740784 INFO    Blockchain not loaded, generating genesis block.
2021-Dec-02 14:18:05.758336 ERROR   Coinbase transaction doesn't use full amount of block reward: spent 8.796093022207, block reward is 70.368744177663
2021-Dec-02 14:18:05.758435 INFO    Block-hash 3bec24663b05b9433e3b226069f6c4a562dbb3ffb62806e2e20c932ff62c0436 has invalid miner transaction
2021-Dec-02 14:18:05.758473 ERROR   Failed to add genesis block to blockchain
2021-Dec-02 14:18:05.758502 ERROR   Failed to initialize blockchain storage
2021-Dec-02 14:18:05.758531 ERROR   Failed to initialize core
2021-Dec-02 14:18:05.758608 INFO    Mining has been stopped, 0 finished
SwappedVector cache hits: 0, misses: 0 (-nan%)
daniel@miner-2:~/prosus.money$ ```

[yerkobits]

Some blockchains like Bitcoin, Ethereum, BSC... have their own testnet network (preconfigured).
Bitcoin: https://blockstream.info/testnet/
Ethereum: https://ropsten.etherscan.io/
BSC: https://testnet.bscscan.com/

Prosusmoney does not have an official testnet, so any developer can create one. Someday (now?) we must create a public testnet, like those other mentioned projects.

In my next comment I leave the guidelines to compile a testnet version.

[yerkobits]

To compile a Prosusmoney Testnet, we need two machines:

Machine 01

• run
  prosus-daemon --print-genesis-tx

• copy and save the hash
  Add this line into your coin configuration file as is: "GENESIS_COINBASE_TX_HEX":"Hash000000001111111000000111110000001110010101010101010",

• Edit the Currency.cpp file, in this line...
  https://github.com/ProsusCorp/prosusmoney/blob/4080794cb80234620f8a988151eea442c8bb150d/cli/src/CryptoNoteCore/Currency.cpp#L80

... with the previous hash saved.

• Edit the CryptoNoteConfig.h file, in this line...
  https://github.com/ProsusCorp/prosusmoney/blob/4080794cb80234620f8a988151eea442c8bb150d/cli/src/CryptoNoteConfig.h#L117

... and change with your host-port value for Machine 2 . For example:
const std::initializer_list<const char*> SEED_NODES = { "192.168.0.20:26180" };

• Edit the CryptoNoteConfig.h file, in this line...
  https://github.com/ProsusCorp/prosusmoney/blob/4080794cb80234620f8a988151eea442c8bb150d/cli/src/CryptoNoteConfig.h#L133

... and erase (or do comment) the chekcpoints.

const std::initializer_list<CheckpointData> CHECKPOINTS = {
//	{ 1000000, "0000000000000000000000000000000000000000000000000000000000000000" }
};

• Compile and build.

---

Machine 02

• Copy all the previous code-source (Machine 01) in a new folder (with a new name).
• Only edit CryptoNoteConfig.h file, in this line...
  https://github.com/ProsusCorp/prosusmoney/blob/4080794cb80234620f8a988151eea442c8bb150d/cli/src/CryptoNoteConfig.h#L117

... change with your host-port value for Machine 1 . For example:
const std::initializer_list<const char*> SEED_NODES = { "192.168.0.10:26180" };

• Compile and build.

[driquelme]

Can we pass the host and port parameters in the command line instead of modifying CryptoNoteConfig.h?

[yerkobits]

Can we pass the host and port parameters in the command line instead of modifying CryptoNoteConfig.h?

Yes, but I recommend testing this on a "Machine 03"

[driquelme]

The following error shows up when connecting with the cli wallet after following the instructions and setting up two daemons.

Error line: Failed to query blocks: NodeErrorCategory:5, Internal node error

In context:

2021-Dec-10 20:59:35.404806 INFO    Starting...
2021-Dec-10 20:59:35.405183 INFO    Removing outdated pool transactions...
2021-Dec-10 20:59:35.406139 INFO    Outdated pool transactions processed
2021-Dec-10 20:59:35.406390 INFO    Generated new wallet: Prosus1kR45Qpz....
2021-Dec-10 20:59:35.406390 INFO    view key: 
2021-Dec-10 20:59:35.408482 ERROR   Failed to query blocks: NodeErrorCategory:5, Internal node error
2021-Dec-10 20:59:35.412070 INFO    **********************************************************************
Your wallet has been generated.

[driquelme]

I followed the instructions and rebuilt everything from scratch, but the error still appears when I generate a wallet.

[driquelme]

Ok so after applying all modifications I got it working. I wasn't using a prosus-wallet that was compiled with the modifications.