Questions tagged [backup]

The process of copying one or more files to an alternate location for safekeeping. Typically refers to the copying of Bitcoin's wallet.dat file but may also refer to the built-in JSON API command to perform such a backup.

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120 views

Lost wallet problem: I have a 240 byte file from a 2013 wallet. Can I access bitcoin with this?

I lost the device with my Android Bitcoin Wallet late 2013. At the time, I had stored a 'wallet backup' file. It has no extension, is 240 bytes, and begins with 'U'. With only that file, is it ...
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38 views

Permission denied when attempting to backup wallet using backupwallet

When I call bitcoin@raspberrypi:~ $ bitcoin-cli backupwallet "backup.dat", I get the following error: error code: -4 error message: Error: Wallet backup failed! ~/.bitcoin/debug.log shows ...
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719 views

Access Bitcoin Wallet with private key

3 years ago i bought a little bit of Bitcoin. Today i found the private key of my wallet. But I cant access it, I need these 12 words (backup) I dont have. Why cant I access my Bitcoin Wallet with ...
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607 views

Multibit Private Key Restore

I backed up my private key and restored it into a new copy of Multibit (difference machine). The import was successful but the public key address has not been updated with my previous address. I've ...
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Does a Bitcoin Core wallet backup cover receiving addresses?

I have a Bitcoin Core wallet installed on my computer (from https://bitcoin.org/en/download). When I create a backup, will it also back up my receiving addresses? For example, I have give my address ...
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bitcoin-qt “backup wallet” vs copying wallet.dat

I am new to bitcoin, I wander what are the differences, and pros/cons (if any) between the file generated by bitcoin-qt when clicking on "backup wallet" vs copying the file "wallet.dat&...
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2answers
115 views

Cannot open wallet dump file (code-8)

Does anyone know why I can't dump info into a text file? It also doesn't allow me to back up my wallet. i am using SNAP
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1answer
109 views

Bitcoin Core Offline Reinstallation

It is possible to reinstall Bitcoin Core Offline? I copied all the files to my external HDD. I use Ubuntu. Thanks
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1answer
338 views

How can I get back my bitcoin from a backup folder

I want to restore my bitcoin wallet which backup in 2013, I have the backup folder and a password(not secure words). Anyone know how to do?
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What's the easiest way to create a backup node?

My node recently had a data corruption and I had to re-sync it which was painful. Presuming I don't use the node as a wallet, what's the easiest way to have a backup with the fully sync'd blockchain? ...
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bitcoin-core/packaging (SNAP version) BACKUP

When I introduce this sentence: bitcoin-core.cli backupwallet wallet.backup it appears the following error: error code: -4 error message: Error: Wallet backup failed! why? When I try to make a ...
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672 views

How to configure the official bitcoin client to conveniently use offline wallets?

This is a follow up question to "How can I keep my wallet secure?" Is there a portable (at least Win32&64/Linux) to configure the official bitcoin client to use only offline wallets to be ...
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is it safe to share the indexes folder between computers?

my understsanding is the indexes folder is created if you have tindex set to 1 and want to keep an index of all transactions. all of the material i've seen (bitcoin core documentation, on this site, ...
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Does restoring wallet.dat require the same paths and configs in servers?

I have a Bitcoin core server (Server 1) which is working well. Now I am testing backing up and restoring its wallet on a new server (Server 2). Imagine that the server 1 has these configs: ...
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How can I keep my wallet secure?

The standard Bitcoin client does not encrypt wallet files, so any malicious user that gains access to this file will be able to transfer all the coins to their own wallet. Furthermore, if I lose the ...
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1answer
444 views

Backup of a bitcoind wallet using the extended private masterkey only

If I understand correctly, bitcoind makes use of a extended private masterkey in order to deterministically generate private/public keys for a wallet. Using the dumpwallet command, I'm able to get ...
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2answers
656 views

Backing up Bitcoin using only private keys?

So I'm really new to Bitcoin and cryptocurrencies, and I don't truly understand realtion between Bitcoin private and public key, and address! I understand that for every private key, there is a ...
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Estate planning: how can I ensure my bitcoins are inheritable?

What are good ways to ensure my bitcoins can be inherited by my family when I die or become permanently incapacitated? I think there are probably two significantly different situations to account for,...
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1answer
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How can I restore my wallet?

I just purchased a new laptop and I want to decommission my old one. I have a back-up of my wallet.dat file copied to my new PC. What do I need to do to restore it to my Bitcoin (Windows) client? ...
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2answers
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How to migrate bitcoin node from one computer to another

In my old computer some addresses have bitcoin and it is showing on blockchain. When i am trying to get balance of the same addresses in my new computer where i have synced bitcoin full node ,I ...
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1answer
1k views

How do I restore a Lightning Node with active channels that has crashed causing data loss? Is it similar to restoring a Bitcoin wallet?

If my lightning node crashes after receiving payments (but before I have closed the channel) can I recover my funds? What happens if I do not have backups of all the channel updates? Is the ...
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How to sync my backed up wallet?

I backed up my wallet from computer A. restored the backup on computer B. then I spent some amount of bitcoin from computer A. Now my restored wallet on computer B shows the old balance which is ...
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Cannot recover my wallet [duplicate]

I have an Android backup that I am sure I am using the right password. I have exported the file, and trying to decrypt it with openssl: openssl enc -d -aes-256-cbc -md md5 -a -in ./...
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1answer
66 views

Question regarding LN node backups

I have LN node running on c-lightning. I am performing ~/.lightning dir backups time-to-time. Let's say after backup i open few new channels and withdraw rest of onchain funds to my electrum. Then i ...
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1answer
115 views

How to migrate lightning nodes?

I am wondering what steps to take to migrate a lighting node to a different server, keeping the pubkey/identity. The safest option is obviously to close the channels first. How is the identitiy pubkey ...
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1answer
324 views

How do I backup my wallet with bitcoin-cli over RPC?

hendry@knuckles ~ $ bitcoin-cli backupwallet /home/hendry/backup.dat error code: -1 error message: boost::filesystem::status: Permission denied: "/home/hendry/backup.dat" Reddit couldn't help me ...
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169 views

Restore backup wallet

In the app "Bitcoin wallet" from " bitcoin wallet developers" you can choose to backup your wallet. It will store this backup on your sd-card. But how can you restore it on another phone? I saved the ...
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Can I log-in to my wallet on new PC using just my wallet number and passphrase? [closed]

I was into bitcoin years back. I just stumbled upon my wallet number and passphrase. Can I use these info and sort of log-in using any client I can download online?
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Software wallets and what happen if you break your computer

I've been reading about wallets, web wallets, software wallets, hardware wallets...and there is one question that I could not clear up from other threads: Your bitcoins are stored in the chain. Use ...
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2answers
233 views

Do wallets save a backup of my private keys and seed?

Let's say that I do not trust a lot in myself and my ability to not screw my computer, so also my private keys. Knowing the concept of wallet HD and having seeds to recover all your private keys ...
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1answer
77 views

Solar Flare wipes all hard drives… What happens?

Imagine, for a moment, that a massive solar flare wipes out all hard drives on planet Earth. All hard drives are wiped clean and with them all records of the Bitcoin blockchain. Would we be able to ...
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3answers
3k views

How do Ledger Backups get stored?

Scenario Say you have configured a ledger wallet with 10 BTC and 10 ETH. You then lose this said wallet but you have the 24 unique words. You buy another ledger wallet enter the 24 words and BAM, ...
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1answer
426 views

Restore lightning network node/channels

If one wanted to restore a lightning network node, what files have to be saved? I read that saving hsm_secret is enough to restore private key(s), but I also read about a problem with channels. How ...
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2answers
980 views

Error: Wallet backup failed! (code -4) when setting up bitcoin-qt for first time

I downloaded and ran bitcoin-qt to play around with. First thing I did was create a wallet passphrase. The second thing I did was try to create a wallet backup. Then I got this message: Error: ...
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Does the backup (Bitcoin QT) saves my BTC if i create thousands of addresses?

I'm using the latest version of Bitcoin QT Just encrypted it and backed it up. If i generate 20.000 addresses, and transfer BTC to this addresses. Would the backup i made recover all my BTC? ...
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1answer
68 views

How can I access the mnemonic in the mobile copay wallet?

I was encourage to download copay in my phone so that someone could give me 0.001 BTC. In that process I did not write down the 12 words. Is there a way to access them in the app? Thanks.
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148 views

why should I backup zcash wallet regularly

On zcash official website, making regular backups of the wallet is recommended. When I use bitcoin, I have a master private key, and all private keys can be generated using the master key. So I can ...
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51 views

Lost usb with wallet backups

I was hoping someone would be able to help please?!! I backed up my litecoin core wallet and neo wallet to my usb- today i took that usb out with me since I had other stuff on it too and needed to ...
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1answer
54 views

How often do I need to backup my Copay wallet? Is a new backup after every transaction necessary?

Is it true that I need to make a backup after each time an amount was sent from a wallet by writing down the 12 words? Unfortunately, I had Copay and saved only before the transaction was sent, and ...
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4k views

Restore encrypted wallet

I need to restore a wallet created with bitcoin-qt which was encrypted. I have the encrypted wallet.dat file only. Do I restore this simply by replacing the current wallet.dat with my backup wallet....
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2k views

Back-up a Coinbase wallet?

Yes I am a newbie trying to get started with Coinbase. I have created a wallet and it seems there is no way to back-up that wallet for safety reasons. I am still confused, can I send an amount from ...
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How to obtain the private key of an Armory wallet?

I have a paper backup, a digital wallet backup and all the passwords: how do I retrieve the private key for a watch-only wallet so I can send some coins out of it (created in armory and imported into, ...
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2answers
61 views

Making a backup of my wallet

Let's suppose I make a backup of my wallet when it has 0.001 BTC, but then I transfer to it 0.001 BTC more (so at the end it has 0.002 BTC) and then my PC dies... If I restore my wallet it will have ...
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4answers
1k views

How to redeem a private key in case it is compromised

I know MtGox allows me to redeem a private key, but that doesn't necessarily ensure that all the value is extracted from that address in a timely manner. Is there no simple way to send the entire ...
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What bitcoin data should I back up?

I have an Electrum bitcoin wallet on my PC. If my house burns and my PC is destroyed and the seed (written on paper) is destroyed, my bitcoins are lost. I want to prevent this situation. What is the ...
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1k views

Is it possible to use the same BIP39 list of seed words to create addresses for different crypto assets?

Currently, as a matter of convenience, I'm holding small about of crypto assets on various exchanges. It's not ideal - I'd much rather store them locally, have access to the private keys, be in full ...
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4answers
152 views

Where to store coins while I do a factory reset on my computer?

My Macbook is having some issues and I have a desktop wallet on it for Bitcoin, Litecoin and Ripple. I have been told to completely redo my laptop with a factory reset. How can I move or save these ...
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394 views

Procedure to restore Bitcoin Core backup

I am looking for the procedure necessary to restore a backup of Bitcoin Core v0.15.1 official release version. Assuming I safely exit Bitcoin Core, take a backup of the ~/.bitcoin folder and put it ...
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7k views

What other wallets can import Qt's backup .dat file?

I've been using Bitcoin Qt on my work computer (my only working computer at the moment) but last week Windows 7 decided that the program's bypassing the firewall to download the blockchain was a ...
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1answer
4k views

What happens if I delete wallet.dat?

I have this question, say I have my coins in my local wallet and 1 of 2 things can happen, say I somehow delete the wallet.dat file or some kind of malware deletes the file. I have the password ...