Error Reading from Database

[cr1776]

I can.
1) Open folder with wallet.dat
2) Delete everything except wallet.dat
3) Run Bitcoin-qt
4) Open debug console
4a) Enter walletpassphrase YOUR_PASSWORD 600
5) Enter dumpprivkey YOUR_BITCOIN_ADDRESS
6) Copy a output
7) Create file 1.txt(or any name)
Paste the output in the file
9) Save file as 1.key
10) Open Multibit
11) Tools -> Import private keys -> Import from ...
12) Choose 1.key
13) Press Import private keys

Added the part that unlocks the wallet.dat

Do you have skype? btw my bitcoin core wont open... so I cant do that. I'd pay someone a few bucks to walk me through on skype
PM me

The solution above in the steps listed, should help you open bitcoin core.  It will delete the DB and start over.  You do not need to let it complete, just start up, export the key and then stop.

If the problem is the database and not Bitcoin Core itself corrupted on the disk, then follow the steps above and you will be fine.

Just be SURE you have a few extra backups of the wallet.dat - 1. in case your hard disk has more issues, 2. in case you mistype something.

[shorena]

-snip-
Do you have skype? btw my bitcoin core wont open... so I cant do that. I'd pay someone a few bucks to walk me through on skype
PM me

Nope, I dont use skype sorry. Try the steps fsb4000 and I listed. If it still isnt working by tomorrow I could offer that you send me the wallet.dat via mail and I send you the coins to your new wallet address, but not today. I have to get some sleep.

[HeapinCoins]

-snip-
Do you have skype? btw my bitcoin core wont open... so I cant do that. I'd pay someone a few bucks to walk me through on skype
PM me

Nope, I dont use skype sorry. Try the steps fsb4000 and I listed. If it still isnt working by tomorrow I could offer that you send me the wallet.dat via mail and I send you the coins to your new wallet address, but not today. I have to get some sleep.

will do thx dude

[bbopa637]

HELP please, my latest BTC wallet 12.0 Windows 7 x64 not working for about 1 week, -rescan and -repair didn't help, chkdsk shows no errors, in log file
2016-03-25 09:34:49 LevelDB read failure: Corruption: block checksum mismatch
2016-03-25 09:34:49 Corruption: block checksum mismatch
2016-03-25 09:52:57 UPnP Port Mapping successful.
*
2016-03-25 14:53:38 UPnP Port Mapping successful.
2016-03-25 15:03:06 Error reading from database: Database corrupted
I don't want to delete all 60+ GB, last time I do that it was downlading for about 2 weeks! Please tell me how can I know which exactly file is corrupted? In order to delete it.

[Hannu]

What it is a page of the linux libraries Ubuntu / raspberry (raspnode / full node), etc.  That maybe is the solution?