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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How can I recover a Core Lightning node as safely as possible if the backups might be out of date?

Suppose my Core Lightning node has suffered a catastrophic failure. I have a copy of the HSM secret. I also have copies of the emergency.recover file and the backup file maintained by the backup ...
Steve's user avatar
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What if I delete the wallet file but still have my private key

I am just trying to learn more about bitcoin. My question is what if i delete the wallet file from my computer but I still have my private key, still I be able to access my wallet?
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Age OLd bitcoin core wallet ".dat or .bak or nothing or Dumpwallet .txt or dumping pywallet "recorder type wallet ??

I have one wallet.dat "or lot of wallet", but he's valids ! why, when I loadwallet or import my dumpwallet file, My bitcoins... With old age, on old wallet bitcoin-qt (bitcoin core) version ,...
BTCStackEforCarl815's user avatar
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1 answer
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'lightningd.sqlite3' and 'emergency.recover' are binary files, why use diff then?

It is written in the documentation for core-lightning: Copy the contents of the $LIGHTNINGDIR to the BTRFS mount point. Copy the entire directory, then chown -R the copy to the user who will run the ...
John Smith's user avatar
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What are 'accounts.sqlite3' and 'emergency.recover' and why might I want to back them up?

accounts.sqlite3 and emergency.recover are created in my ~/.lightning/bitcoin when I launch lightningd - they weren't created there some years ago. What are accounts.sqlite3 and emergency.recover and ...
John Smith's user avatar
3 votes
1 answer
157 views

Can 2-of-3 multisig funds be recovered without one of the xpubs?

In a 2-of-3 multisig, the address list is derived from the combination of the three xpub keys. What happens if you lose one of the keys and its xpub? Technically, you'd be able to sign transactions. ...
Oliver Offing's user avatar
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Does bitcoin core save the seed in a brand new descriptor wallet when it gets created?

When I create a brand new descriptor wallet in Bitoin Core 24.x, does it save the seed anywhere, and if so, can I export/import it? I understand that exporting descriptors only is not the same as ...
Meglio's user avatar
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Descriptor Wallets are way more confusing than legacy [duplicate]

how do you dump backup into a json file? then how do you load the json file into backup? " How to create the descriptors wallet? createwallet("my_wallet", False, False, "", ...
bitcoin core nooob's user avatar
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1 answer
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Why isn't the backed up sqlite3 exactly same as the lightningd.sqlite3?

In the backing up page of C-Lightning, it says: The main and backup files will not be identical at every byte, but they will still contain the same data. Is there any specific reason this happens? ...
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Is spitting a BIP39 seed phrase in half meaningly less secure than splitting the entropy in half?

One way to create a distribution, 2-of-3 backup of your seed phrase ABC is to store the following in three separate places: AB BC CA Any two of these lists is sufficient to reconstructed the entire ...
satsflat's user avatar
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Easier way of backing up/remembering a bitcoin private key

This is a bit of a general question, knowing already of HD wallets and the mnemonic system for creating, backing-up and using the bitcoin blockchain. However say you have for example a cold/paper ...
fredsta98's user avatar
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How does bitcoin wallet's backup restore forwarding transactions?

I've installed bitcoin wallet on my phone and had some transactions. I backed up my wallet and after backing up did some other transactions. I supposed that the back up just would restore my wallet ...
Amir reza Riahi's user avatar
2 votes
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56 views

Bitcoin core imported wallet

I have a friend that has an issue with his core: He generated a wallet with coldcard, imported in bitcoin core.. received on both bech32 addresses and nested ones. Lost access to that pc and now when ...
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Would it be possible to not be able to send funds from a wallet?

I was reading this blog post by Jameson Lopp on the best practices to back up a seed phrase https://blog.lopp.net/how-to-back-up-a-seed-phrase/ In the "Test your backup section", he wrote: &...
Solal's user avatar
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BIP85: Is the list of mnemonic sentences deterministically ordered?

There aren't many working implementations of BIP85 yet. Ian Coleman's, Grondilu just added support to their Bitcoin Bash Tools, COLDCARDwallet, AirGap Vault and the Python demonstration library https:/...
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Restore blockchain.com wallet(s) in case the company goes away?

So I have some funds on an blockchain.com wallet. Actually it's multiple wallets (some ETH, some BTC) I followed the backup procedure and wrote 12 English words on a sheet of paper. There is an answer ...
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Replicate bitcoin core for backup

I want to know if possible to have the same bitcoin core and his same wallet running at the same time in two different machines, can I use the same RPC user/pass, I have o machine running but I want ...
Chacalum's user avatar
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Should I use one `hsm_secret` for both the mainnet and the testnet?

When I launch lightningd it generates hsm_secret in ~/.lightning/bitcoin whereas launching lightningd with network=testnet generates hsm_secret in ~/.lightning/testnet. These two files seem to be ...
John Smith's user avatar
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Is it doable to get the private keys from a Bisq wallet?

I do not mean getting the seed phrase - this I've already backed up. I do not see such a possibility from Bisq's GUI. Is it doable to get the private key of a particular address of a Bisq wallet (much ...
John Smith's user avatar
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How do I backup wallet for first time

I tried to send Crypto to my brand new digital wallet. I was informed I must backup wallet first. How do I back up my digital wallet for first use?
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How to create a physical/paper backup for bitcoin-core wallet?

I am using bitcoin-core for my offline storage. In electrum I can do a paper backup by writing down the mnemonics. bitcoin-core seems to be using a different mechanism to generate the wallet. What I ...
bbnn's user avatar
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How to share your wallet key/seed in case you are hit by a bus

This very useful answer says: Share overlapping parts of your private-key or seed phrase with several family members with instructions on what to do if you are hit by a bus this afternoon. This ...
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Unuseful backup

I know wallet.dat needs to do back up every time after I am going a transaction, 'because the backup will become unuseful. After what else cases do I need to do backup again? What cases do my last ...
B L's user avatar
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View backed up wallet.dat using sqlite browser

I backed up my wallet.dat using the command as mentioned in the api ref: bitcoin-cli -rpcport=18332 -rpcuser=user -rpcpassword=password backupwallet "/bitcoin/backup.dat" I would like to ...
leo_cape's user avatar
1 vote
1 answer
160 views

What does the Bitcoin Core wallet backup do?

I set a password to encrypt my wallet, all good. But I can't seem to backup my wallet. I try and nothing happens. Does the backup function give me keys or the seed words?
Jonsey's user avatar
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2 votes
3 answers
514 views

Paper backup of Core descriptor wallet

As I understand it, using dumpwallet for a non-descriptor wallet in Core will give you the wallet seed in WIF format. This seed can then be used with sethdseed in a new wallet, thereby recovering the ...
jimmy's user avatar
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3 votes
1 answer
382 views

What software can I use to calculate my private key from a seed (e.g. Trezor or Ledger)?

I want to make sure I can use my seed from Trezor or Ledger (or others) in a backup process without using an actual Trezor or Ledger to do it. I have to find out my private key. I probably also need ...
bomben's user avatar
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1 answer
212 views

One seed phrase created two wallets with two script types

I have a wallet on blockchain.com and it is saved with the backup phrase. Due to issues I was not able to buy anything there, so I created an account at coinbase. This lead to the usage of coinbase ...
Irgendw Pointer's user avatar
10 votes
1 answer
2k views

In a multisig wallet setup what needs to be backed up and why?

In a multisig wallet setup what needs to be backed up and why?
Michael Folkson's user avatar
1 vote
1 answer
391 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 ...
Vanderlow's user avatar
2 votes
2 answers
2k 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 ...
ndemarco's user avatar
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0 answers
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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 ...
Kristian's user avatar
3 votes
1 answer
220 views

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&...
Reimundo Heluani's user avatar
1 vote
2 answers
543 views

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? ...
diddy's user avatar
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1 vote
3 answers
2k 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
themagician's user avatar
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1 answer
223 views

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, ...
kittyminky's user avatar
0 votes
1 answer
78 views

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: ...
Mohammad Saberi's user avatar
6 votes
2 answers
500 views

c-lightning node backup-restore

How do I restore a c-lightning node from a backed up hsm_secret ? I have tried running lightningd by replacing the generated hsm_secret with the backed-up one. It shows no output and no channel. How ...
Prashanth C's user avatar
2 votes
1 answer
2k 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 ...
electrotype's user avatar
0 votes
0 answers
61 views

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 ...
Meysam Feghhi's user avatar
2 votes
2 answers
5k 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 ...
daiiiii's user avatar
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0 votes
0 answers
17 views

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 ./...
Igor Simoes's user avatar
1 vote
1 answer
149 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 ...
baysx's user avatar
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0 votes
1 answer
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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 ...
hendry's user avatar
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2 votes
1 answer
168 views

How do non-deterministic wallets violate the principle of address reuse?

In chapter 5 of Mastering Bitcoin, Andreas writes: "The disadvantage of random keys is that if you generate many of them you must keep copies of all of them, meaning that the wallet must be backed up ...
timothyylim's user avatar
0 votes
2 answers
528 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 ...
3Chicken's user avatar
1 vote
2 answers
1k views

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 ...
3Chicken's user avatar
0 votes
1 answer
252 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 ...
Scott's user avatar
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4 votes
1 answer
613 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 ...
Bruce Wayne's user avatar
5 votes
1 answer
203 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 ...
S van Staa's user avatar