Topic: NA - page 46. (Read 893626 times)

Yes i am pretty sure it aint that. Running cmd in admin modes. I just recovered more then just wallet.dat (It contains 2.12 GB) and going to try it again. I will let you know.

Possibly try to run your command prompt as administrator and turn off your virus scanner. Ensure you have the 64 bit version of the program installed if it is a 64 bit windows.
I'm not sure what else to suggest, but the program is at this point not even reaching the part where it tries to recover the wallet.dat (it is failing just to make a copy of the wallet.dat with a different name) and this indicates something external is wrong e.g. unable to even access the file for some reason. (The read only attribute being the most obvious thing here - you are 100% sure the read only attribute is not set?)
If you send me the full debug.log in private perhaps I can pick up some other clues from it.

No

Does the file wallet.1446113146.bak exist afterwards? There is something very strange going on that a basic file rename is failing...

PyWallet gives me the following error
Couldn't open wallet.dat/main. Try quitting Bitcoin and running this again

Same problem;

2015-10-29 10:05:46 Gulden version v1.5.2.0-f0e8ba6 (2015-10-10 12:42:24 -0400)
2015-10-29 10:05:46 Using OpenSSL version OpenSSL 1.0.1k 8 Jan 2015
2015-10-29 10:05:46 Using BerkeleyDB version Berkeley DB 4.8.30: (April  9, 2010)
2015-10-29 10:05:46 Default data directory C:\Users\AKKIE\AppData\Roaming\Gulden
2015-10-29 10:05:46 Using data directory N:\Gulden
2015-10-29 10:05:46 Using config file N:\Gulden\Gulden.conf
2015-10-29 10:05:46 Using at most 125 connections (2048 file descriptors available)
2015-10-29 10:05:46 Using 8 threads for script verification
2015-10-29 10:05:46 Using wallet wallet.dat
2015-10-29 10:05:46 init message: Verifying wallet...
2015-10-29 10:05:46 CDBEnv::Open: LogDir=N:\Gulden\database ErrorFile=N:\Gulden\db.log
2015-10-29 10:05:46 Failed to rename wallet.dat to wallet.1446113146.bak
2015-10-29 10:05:46 GUI: initializeResult : Initialization result:  0
2015-10-29 10:05:46 GUI: requestShutdown : Requesting shutdown
2015-10-29 10:05:46 GUI: shutdown : Running Shutdown in thread
2015-10-29 10:05:46 Shutdown: In progress...
2015-10-29 10:05:46 StopNode()
2015-10-29 10:05:46 Shutdown: done
2015-10-29 10:05:46 GUI: shutdown : Shutdown finished
2015-10-29 10:05:46 GUI: shutdownResult : Shutdown result:  1
2015-10-29 10:05:46 GUI: ~BitcoinApplication : Stopping thread
2015-10-29 10:05:46 GUI: ~BitcoinApplication : Stopped thread


Note : The wallet.dat files i recovered are much different then the one from the new wallet. I can recover all data from the new wallet.dat i created. It seems like the wallet.dat files are not right. The recovered files are build somewhere in 2014. Can it have something to do with the fact there are build in old outdated guldencoin wallets?

Edit :
Older wallets giving the same problem

2015-10-29 10:16:07 Guldencoin version v1.3.1.0-unk-beta (Jan  7 2015, 23:42:14)
2015-10-29 10:16:07 Using OpenSSL version OpenSSL 1.0.1h 5 Jun 2014
2015-10-29 10:16:07 Default data directory C:\Users\AKKIE\AppData\Roaming\Guldencoin
2015-10-29 10:16:07 Using data directory N:\Gulden
2015-10-29 10:16:07 Using at most 125 connections (2048 file descriptors available)
2015-10-29 10:16:07 Using 8 threads for script verification
2015-10-29 10:16:07 init message: Portomonnee aan het controleren...
2015-10-29 10:16:07 dbenv.open LogDir=N:\Gulden\database ErrorFile=N:\Gulden\db.log
2015-10-29 10:16:07 Failed to rename wallet.dat to wallet.1446113767.bak
2015-10-29 10:16:07 Shutdown : In progress...
2015-10-29 10:16:07 StopNode()
2015-10-29 10:16:07 Flushed 0 addresses to peers.dat  0ms
2015-10-29 10:16:07 Shutdown : done

Please try the following:
1) Create a new folder C:\Recover
2) Place just a single wallet.dat in the folder
3) Ensure both the folder and wallet.dat are readable and writeable
4) Run Gulden.exe -datadir=C:\Recover -salvagewallet -debug from the prompt
5) If it fails send me the debug.log

Ok, that sounds plausible.

It is possible as a last resort.
I think it is better to first try and use salvagewallet, from what I can see currently the salvage is not failing but rather it is failing to rename the file (which it does before the salvage even begins) so as a first step it would be best to figure out why this is.

MaNI, maybe this can help? http://forum.bitcoin.org/index.php?topic=8274.0

I wish this was the problem... Unfortunly not!

I hope for Shopem this is it, to be solved.

https://github.com/Gulden/gulden-dev/issues/55

Let this also be a reminder to everyone, please make regular backups of your wallet.dat
Also please report wallet bugs on our github if you find them, the more bug reports the more fixes the better the wallet

Are the files maybe marked as read only? Right click them, go into properties and ensure they are writeable.
Note: this alone might be enough to make the 'corruption' disappear so try this first without the salvage wallet option even.  (That bitcoin-qt reports read only wallet files as corrupted is horrific and something that we must fix - I am going to open a bug on our github for this immediately)

nice, thanks for the continued updates

I recovered multiple wallet.dat and other files

@Shopem, i googled a bit and saw that possibly you can retrieve the private key with a hex-program. I have no experience with that. Once you have the private key you can import that in a new wallet. With bitcoin there is also a py wallet to help with this i saw. Also no experience with that.
I think it is wise to wait for the experts to assist on this.

Did you have only 1 backup file?

Edit: Found also this for bitcoin:
http://forum.bitcoin.org/index.php?topic=8274.0

Maybe MaNI can help further or other experts.

I got 20 wallet.dat files now. Gulden.exe and older wallets keep crashing on that

// Edit :

2015-10-29 08:38:09 CDBEnv::Open: LogDir=C:\Users\AKKIE\AppData\Roaming\Gulden\database ErrorFile=C:\Users\AKKIE\AppData\Roaming\Gulden\db.log
2015-10-29 08:38:09 Failed to rename wallet.dat to wallet.1446107889.bak

1) Make sure you have a safe backup of this file before trying anything further as any further incorrect steps may damage it even more and remove whatever chance of recovery there is. Work only on a copy of the file from now on.
2) Open a command prompt
3) Run command "Gulden.exe -salvagewallet"

Help!

I just recovered my wallet.dat file after a format but when i put it in the right folder and start guldencoin (on windows) it says the wallet.dat file is corrupt. This account holds over 800k NLG so please help!

What pijpenstelen said, I have a few friends that are showing interest in trying out the digital currency world this weekend (due to the latest bitcoin rally) and I will make sure Gulden is part of there portfolios.