Doubt about the deseed / reseed command

[dimasmjunior]

Hi guys,

    The documentation for Electrum mentions that I can create an offline wallet: https://en.bitcoin.it/wiki/Electrum#Offline_wallet. It says:

step 2: extract the seed from your wallet file:
[offline]$ electrum -o -w wallet deseed
This will remove the seed from 'wallet', and save it to a file named 'wallet.seed'

    This does not happen in the latest version. Instead only a file named electrum.dat.seedless is created. Without the wallet.seed it's impossible to 'reseed' a synced wallet and make offline transactions. Also the --help option does not mention any reseed command. Has things changed and the documentation is stale? Am I missing something? What is the correct way of doing this?

Thanks in advance.

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[Tachikoma]

Here is how I do it.

I have a totally offline computer which I installed Electrum on and generate my offline wallet seed. I exported this wallets Master Public Key through settings->export.

I created a deseeded (read-only) wallet using the MPK on my online computer. Whenever I need to touch the funds in my offline wallet I first create a transaction from the deseeded wallet which I store on a usb drive. (You can do this by simply making a payment from "Send" tab it will save it as a file). I hook up the usb drive to my offline computer and use Electrum there to sign the transaction, after which I transfer it back to the online pc to broadcast it over the network.

[btcven]

^
Maybe Electrum' documentation need to be updated with the MPK option for offline and online wallets.

[ThomasV]

sorry, the documentation on the wiki is deprecated.
please use the doc included in the package: https://github.com/spesmilo/electrum/tree/master/docs

[dimasmjunior]

Thank you all. I'll try the updated documentation.

It would be very nice if electrum generated a file to make the process easier. Something like:

Code:

electrum maketx <addr> <value> unsigned.tx

And then, on the offline node:

Code:

electrum signtx unsigned.tx signed.tx

And finally:

Code:

electrum sendtx signed.tx

I understand that using stream redirection can alleviate the problem on the final step, but the signing would still be very messy. It would be nice to have a simpler command line interface.

[btcven]

Thank you all. I'll try the updated documentation.

It would be very nice if electrum generated a file to make the process easier. Something like:

Code:

electrum maketx <addr> <value> unsigned.tx

And then, on the offline node:

Code:

electrum signtx unsigned.tx signed.tx

And finally:

Code:

electrum sendtx signed.tx

I understand that using stream redirection can alleviate the problem on the final step, but the signing would still be very messy. It would be nice to have a simpler command line interface.

The up to date documentations will be placed in the website in a matter of hours.

[Tachikoma]

Thank you all. I'll try the updated documentation.

It would be very nice if electrum generated a file to make the process easier. Something like:

Code:

electrum maketx <addr> <value> unsigned.tx

And then, on the offline node:

Code:

electrum signtx unsigned.tx signed.tx

And finally:

Code:

electrum sendtx signed.tx

I understand that using stream redirection can alleviate the problem on the final step, but the signing would still be very messy. It would be nice to have a simpler command line interface.

You can also do all the steps from the GUI, can't get much easier then that