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Author Topic: Cannot restore wallet  (Read 644 times)
Mugabuga
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July 12, 2012, 09:24:26 PM
 #1

I have a really old wallet.dat file that I'm trying to restore, and whenever I put it in the data folder, bitcoin fails to start and gives me this error:
http://i.imgur.com/kc0WP.png

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There are several different types of Bitcoin clients. The most secure are full nodes like Bitcoin-Qt, which will follow the rules of the network no matter what miners do. Even if every miner decided to create 1000 bitcoins per block, full nodes would stick to the rules and reject those blocks.
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rxw
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July 13, 2012, 02:49:02 AM
 #2

Maybe try using an older version of bitcoin? they should all be backwards compatible, but give it a shot anyways. As a last resort you should be able to extract the priv keys from that file and put them in a newly created wallet.dat
anu
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July 13, 2012, 02:40:25 PM
 #3

Maybe try using an older version of bitcoin? they should all be backwards compatible, but give it a shot anyways. As a last resort you should be able to extract the priv keys from that file and put them in a newly created wallet.dat

If this doesn't help you can try Gavin's Bitcoin Tools:
https://github.com/gavinandresen/bitcointools
to extract the keys.

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exotime
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July 17, 2012, 06:05:57 PM
 #4

Do you have any other copies of the wallet file you can compare it with, to ensure your "really old copy" is still bit-for-bit accurate?

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VelvetLeaf
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July 18, 2012, 12:33:39 AM
 #5

Export your private key to the new wallet with PyWallet or dumpprivkey/importprivkey pair API

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