My blockchain is 5 years behind and my friend is bringing over an up to date chain. Can I just rsync lmdb and it adds the new blocks or is it better to just paste the new chain in place of the old one? I don't think the up to date one is pruned but if it is will that cause problems if I try to rsync it?

On Linux. Thanks.

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[–] anesthesia@monero.town 1 points 8 hours ago

Quickly googled about rsyncing big files. It is aparently slow, as it must checksum the whole file.

My guess would be that: If both blockchains are NOT pruned, then it should be fine but super slow If they are pruned, then since the pruning involves randomness, I guess it would be useless to rsync them. Because the history will be different.

My bet is that a normal copy would be better.