Finally I have been able to recover a copy of the wallet from a very old usb. It works!!!!

Always always always make copies of your wallet.dat!!!!

I was pretty scared because I thought that I have lost my BTC.

thank for your help

Yes I have read them, but I have already tried everything with pywallet and bitcoin core console and nothing works.

It is a bitcoin core wallet. This is the only program that I use.

With bitcoin core)

loadwallet wallet.dat

Wallet file verification failed. Failed to load database path '/home/.bitcoin/wallet.dat'. Data is not in recognized format. (code -18)

With pywallet)

python3 pywallet.py --dumpwallet  --wallet=/home/pywallet/wallet.dat --passphrase=mypassword

22, 'Invalid argument -- BDB0210 /home/pywallet/wallet.dat: metadata page checksum error'

So It clear that there is something wrong with the file, but no totally wrong because BTCrecover is able to identify the correct password.

Thank you

I was asking to use BTCrecover because It was able to identify the correct password that I already know that is correct. How it was able to do that if the file is corrupted? So I think that BTCrecover may be is able to extract private keys. But, as you said, It cant do that with bitcoin core wallet.dat. I dont know why not.

I have used  --dump-privkeys with --correct-wallet-password and --wallet args, but BTCrecover said "This wallet type does not currently support dumping the decrypted private keys"  

Thank you

I used pywallet but I get this:

python3 pywallet.py --dumpwallet  --wallet=/home/pywallet/wallet.dat --passphrase=mypassword


22, 'Invalid argument -- BDB0210 /home/pywallet/wallet.dat: metadata page checksum error'


Thank you

Is there any command to be able to export privatekeys from a wallet.dat using BTCrecover?

I am not able to do it using Bitcoin-qt or pywallet with an old wallet.dat from 2018.

Thank you.