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Yes, I had tried keys and mouse. I think/guess the problem was some kind of problem with VBox. In any event, I ended up building a new CENTOS8 machine and this time, set the display to not power off, as suggested earlier.
A bit late reply, but do you also try invoke keyboard input from 1. VirtualBox soft keyboard (Input > Keyboard > Soft Keyboard) 2. Any input in menu Input > Keyboard > Insert ... (such as Insert Print Screen or Insert Ctrl-Alt-Del) Installing VirtualBox Guest Addition sometimes helps with input problem, if you haven't do it. Hi ETFbitcoin, I already had the VBox additions installed when this happened. For now, I have turned off the screen power down in the CENTOS desktop, and the screen is staying visible. I feel much better about that  !! Jim |
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That's correct... Bitcoin Core does not support the BIP39 "seed mnemonic"... instead, it relies on making backups of the wallet.dat as the recovery method. Essentially, you just make a copy the wallet.dat file... however, it should be noted that you should not do this while bitcoin core is running!... you could make a corrupt backup if the application is in the middle of writing data when you copy the file. Instead, you should either use the "File -> Backup wallet..." option in the GUI:  or the backupwallet option available on the console or with bitcoin-cli... or shut bitcoin core down and then copy the file manually. Hi HCP, Thanks for the info, esp. about backing up the wallet/wallet.dat! |
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You open your testnet wallet, go to send tab, enter the receiver's testnet address, enter an amount and click send.
Hello Can you please tell me what is testnet wallet, i saw (testnet application + bitcoin wallet application) in Android !? As NotATether said, bitcoin core has the option to work with testnet. Also, electrum does also (./electrum --testnet). I haven't tried any other wallets besides those two (yet). Jim |
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how do I do that?
You open your testnet wallet, go to send tab, enter the receiver's testnet address, enter an amount and click send. Do I just send the BTC back to the tb1qt0lenzq....dhqp4c address?
Yes. send the "testnet" coins ( tbtc) back to tb1q... Hi, Ok, cool! Thanks! |
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Hi,
I was able to request and receive some BTC on testnet, from a faucet, using Bitcoin Core, and I read that I should return the BTC to the faucet after I don't need it, but I was wondering, how do I do that?
The faucet website has this on it:
Donate:
Bitcoin testnet
Replenish the faucet:
tb1qt0lenzq....dhqp4c
Do I just send the BTC back to the tb1qt0lenzq....dhqp4c address?
Thanks,
Jim
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@NotATether already answer the question, but i would suggest you to diagnose the problem since i doubt Bitcoin Core causes black screen.
The black screen is most likely coming from GNOME shell turning off the display due to inactivity. Just open GNOME Settings and go to Power > Power Saving > Blank Screen and set it to "Never" to stop the screen from turning off. Centos 8 has gnome installed by default. If that's the cause, usually you can remove it by move your mouse or press any key on your keyboard. I doubt OP didn't do one of those since he have knowledge to setup CentOS. Hi EFTbitcoin, Yes, I had tried keys and mouse. I think/guess the problem was some kind of problem with VBox. In any event, I ended up building a new CENTOS8 machine and this time, set the display to not power off, as suggested earlier. All, I have to apologize (partly) about my questions. Originally, I had been testing Bitcoin core with testnet first and then also Electrum with testnet, and I got confused between them. Now I have re-done my tests, and realized that the seed (the 12 words) only got created when I was testing with Electrum, and created a new Electrum wallet. When I created the new wallet in Bitcoin Core, it only asked me to create a new password. My apologies that some of what I asked earlier may have confused folks  !! However, now I have a new question: How come there is no seed (the 12 words) when I create the Bitcoin Core wallet? Thanks, Jim EDIT 1: I think I found the answer to my last question above, about Bitcoin Core wallet and seed: https://bitcoin.stackexchange.com/questions/60162/seed-for-bitcoin-core-qtThanks again! Jim |
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@NotATether already answer the question, but i would suggest you to diagnose the problem since i doubt Bitcoin Core causes black screen.
The black screen is most likely coming from GNOME shell turning off the display due to inactivity. Just open GNOME Settings and go to Power > Power Saving > Blank Screen and set it to "Never" to stop the screen from turning off. Centos 8 has gnome installed by default. Hi, Yes, that was what was causing the black screen, exactly! |
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Hi, I am trying to setup and initialize Bitcoin Core v0.21.0 with Testnet on CENTOS 8. The first time I ran: ./bitcoin-qt -testnet I pointed to a dir, /data/mybitcoindir, and I think it was actually running all right, but there was some problem with my machine (I am running this on a VirtualBox VM) and I think the screen went black after awhile and I could not get it to wake up, so I couldn't finish the setup ... So after I disabled the screen blanking, deleted the entire bitcoin dir and untar the tar.gz again, deleted the /data/mybitcoindir directory contents, and tried re-running it and it loaded the entire blockchain(?) but then it said there was no wallet. So I was wondering, is there a way to re-run the "bitcoin-qt -testnet" again? What else do I need to get the files back to the point before when I ran that the 1st time? I noticed that there is a /root/.config/Bitcoin dir, so I am about to try deleting that dir, and then re-running, but meanwhile, I was hoping someone here might know? Thanks, Jim P.S. I know that I can probably blow away the entire VM and start again with a clean CENTOS 8, but it took me a while getting that setup working, so would prefer not to have to do that. Also, I know I should've taken a snapshot before starting the bitcoin install, but it's too late for that now ... |
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