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Merge pull request #321 from jodobear/patch-1

Update FAQ.md
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Christian Rotzoll 6 years ago
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      FAQ.md

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FAQ.md

@ -63,13 +63,13 @@ Copying a already synced blockchain from another computer (for example your Lapt
One requirement is that the blockchain is from another bitcoin-core client with version greater or equal to 0.17.1 with transaction index switched on (`txindex=1` in the `bitcoin.conf`).
But we dont copy the data via USB to the device, because the HDD needs to be formatted in EXT4 and that is usually not read/writeable by Windows or Mac computers. So I will explain a way to copy the data thru your local network. This should work from Windows, Mac, Linux and even from another already synced RaspiBlitz.
But we dont copy the data via USB to the device, because the HDD needs to be formatted in EXT4 and that is usually not read/writeable by Windows or Mac computers. So I will explain a way to copy the data through your local network. This should work from Windows, Mac, Linux and even from another already synced RaspiBlitz.
Both computers (your RaspberryPi and the other computer with the full blockchain on) need to be connected to the same local network. Make sure that bitcoin is stoped on the computer containing the blockchain. If your blockchain source is another RaspiBlitz run on the terminal `sudo systemctl stop bitcoind` and then go to the directory where the blochcian data is with `cd /mnt/hdd/bitcoin` - when copy/transfer is done later reboot a RaspiBlitz source with `sudo shutdown -r now`.
If everything of the above is prepared, start the setup of the new RaspiBlitz with a fresh SD card (like explained in the README) - its OK that there is no blockchain data on your HDD yet - just follow the setup. When you get to the setup-point `Getting the Blockchain` choose the COPY option. Starting from version 1.0 of the RaspiBlitz this will give you further detailed instructions how to transfere the blockchain data onto your RaspiBlitz. In short: On your computer with the blockchain data source you will execute SCP commands, that will copy the data over your Local Network to your RaspiBlitz.
If everything of the above is prepared, start the setup of the new RaspiBlitz with a fresh SD card (like explained in the README) - its OK that there is no blockchain data on your HDD yet - just follow the setup. When you get to the setup-point `Getting the Blockchain` choose the COPY option. Starting from version 1.0 of the RaspiBlitz this will give you further detailed instructions how to transfer the blockchain data onto your RaspiBlitz. In short: On your computer with the blockchain data source you will execute SCP commands, that will copy the data over your Local Network to your RaspiBlitz.
Once you finished all the transferes the Raspiblitz will make a quick-check on the data - but that will not guarantee that everything in detail was OK with the transfere. Check further FAQ answeres if you get stuck or see a final sync with a value below 90%.
Once you finished all the transferes the Raspiblitz will make a quick-check on the data - but that will not guarantee that everything in detail was OK with the transfer. Check further FAQ answeres if you get stuck or see a final sync with a value below 90%.
**If you want to replace a corrupted blockchain this way:** *Go to terminal - maybe with CTRL+c. Then call `/home/admin/50copyHDD.sh` use the displayed SCP commands to copy over the fresh blockchain. Press ENTER when all is copied, so that the script can quick check the data. Then make a reboot `sudo shutdown -r now`*
@ -512,6 +512,6 @@ When the HDD is clean, then flash a new RaspiBlitz sd card and your setup should
You could try to re-index, but that can take some very long time - multiple days or even weeks.
Another option would be to delete the old blockchain and get a new one. See for details the FAQ question: [I have the full blockchain on another computer. How do I copy it to the RaspiBlitz?](FAQ.md#i-have-the-full-blockchain-on-another-computer-how-do-i-copy-it-to-the-raspiblitz)
Another option would be to delete the old blockchain and get a new one. See for details the FAQ question: [I have the full blockchain on another computer. How do I copy it to the RaspiBlitz?](FAQ.md#i-have-the-full-blockchain-on-another-computer-how-do-i-copy-it-to-the-raspiblitz). And even if you are not able to delete the data, first rename the undeletable folders and then follow the instructions.
Also make sure to check again on your power supply - it needs to deliver equal or more then 3A and should deliver a stable current. If you think your HDD is degrading - maybe this is a good time to replace it. See for details the FAQ question: [How can I recover my coins from a failing RaspiBlitz?](FAQ.md#how-can-i-recover-my-coins-from-a-failing-raspiblitz)
Also make sure to check again on your power supply - it needs to deliver equal or more then 3A and should deliver a stable current. If you think your HDD is degrading - maybe this is a good time to replace it. See for details the FAQ question: [How can I recover my coins from a failing RaspiBlitz?](FAQ.md#how-can-i-recover-my-coins-from-a-failing-raspiblitz)

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