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Author Topic: Bitcoin-QT: System Error: Database Corrupted  (Read 13934 times)
Cryptoweez
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February 07, 2014, 07:08:52 AM
 #21

I'm having this issue while trying to open my bitcoin QT wallet: erreur système :CDB() : cannot open database file wallet.dat, error -30974
Does my issue is in the same "kind" of issue mention in this post?
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November 18, 2014, 03:37:00 PM
 #22

I imagine there are fewer and fewer blockchains at  home all the time given its size.

I maintain two blockchains having Bitcoin-QT on two machines.  This morning I got a payout and soon after that blockchain came up corrupted.  So, I know the corruption is in the last block.

Can I go into the database and remove the last block, then remove the lock on the directory, delete the wallet, and have the blockchain start building from just before the deleted block?

I realize that all the other times this has happened I have had to wipe the whole thing then after copying the blockchain from the other machine, rebuilt from that but it takes weeks even when building from a current blockchain.

soy

Okay, this is odd.  I had deleted the wallet and removed the lock then tried but got a corrupt database message again.  Then I put the machine on another sub-net here, removed the lock and the wallet and tried again.  This time the Bitcoin-QT opened just fine and caught up the blockchain!  Putting the wallet having the new payout on the other machine with a blockchain, it opened perfectly with the correct balance and is up to date.  So, all fixed and I don't know why.



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HeroCat
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November 19, 2014, 10:16:49 AM
 #23

In your place I would use Blockchain online wallet together with Multibit wallet or only Multibit wallet - it is much more simple. At this stage BTC network is expanded a lot, so Multibit is good choice.
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November 19, 2014, 10:49:26 AM
 #24

I faced the similar problem too. I was bit worried at the time. Used a different wallet to recover. Cheesy Grin

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