Mac 0.80b beta - says "database corrupted" and then Bitcoin-Qt quit unexpectedly

I can't run Bitcoin-Qt 0.80 on Mac OS X 10.8 any more.

It starts up then says "System Error: Database Corrupted". I then click OK, and the program "quits unexpectedly"

How do I start again without losing my wallet. Is it just the wallet.dat file that I need to keep, or others as well if I reinstall? I have encrypted the wallet if that makes any difference to the files I need to keep.

There are lots of BC in the wallet. I can't afford to lose them!!

Is there another program I can use just to open the wallet?

pete smith

Posted 2013-03-16T05:00:30.930

Reputation: 69

What files do I need to delete to get the program working again? I tried deleting everything in "chainstate" directory, it ran for a while then crashed again. There are also "blocks" and a "database" directory. I just don't want to delete anything which is going to make my bitcoins disappear. But I need access to the wallet again obviously. – pete smith – 2013-03-16T05:07:47.113

1Do you have a recent backup of your wallet.dat? Any backup within the past 100 transactions would have all your private keys. – Stephen Gornick – 2013-03-16T05:26:50.337

Were you running 0.7 and upgraded to 0.8? https://github.com/bitcoin/bitcoin/issues/2305

– o0'. – 2013-03-16T12:56:04.703

Answers

Joric's fork of pywallet can read a wallet.dat, decrypt it with your pass phrase and then you can export the keys. But if it is corrupted and Bitcoin-Qt can't read it then pywallet may fare no better.

Doesn't hurt to give it a try.

Stephen Gornick

Posted 2013-03-16T05:00:30.930

Reputation: 26 118

1Thanks for the suggestion. What I did in the end was import the wallet into blockchain.info/wallet. That worked very well, even with the encrypted wallet. – pete smith – 2013-03-16T05:43:44.603

1@petesmith please post it as an answer, for future reference – o0'. – 2013-03-16T13:00:50.097

I had the same issue. What i did is:

goto /library/application support/bitcoin/blocks
renamed the index folder to index1
started bitcoin-qt again

The application started reindexing again but my wallet keys are still there.

Sat

Posted 2013-03-16T05:00:30.930

Reputation: 11

You can safely delete any Bitcoin-qt files as long as you let the wallet.dat file stay.

Tom van der Woerdt

Posted 2013-03-16T05:00:30.930

Reputation: 2 397