Genesis block and validator software version mismatches are hard to detect.

[aeyakovenko]

Problem

User reported error:

I have got some test tokens, but stuck at connecting to the TDS cluster:

ERROR solana_core::validator] Failed to load genesis from "/root/validator-ledger": Unable to deserialize "/root/validator-ledger/genesis.bin": Io(Custom { kind: Unexp
ectedEof, error: "" })

When booting 0.21.5 on 0.22 genesis.

Proposed Solution

Track genesis block versions.

[mvines]

ABI management, #7738, should help here to detect when the genesis block binary format changes.

[mvines]

Fixed by not changing the genesis format anymore :)