Brazilian makes a tutorial on how to run a Bitcoin full node on an Android phone; Check step by step

Charlie Taylor

Running a Bitcoin full node, that is, a complete copy of the blockchain of the most important cryptocurrency in the world, is simpler than many imagine, as Brazilian bitcoiner Ricardo Reis proves. showed on Twitter how it is possible to help strengthen the security of the Bitcoin network and run a full node using a Samsung Android cell phone, model J9, which he bought used for R$350. In the process, the cell phone has the task of running the software of the Bitcoin. The device can be replaced by a tablet, computer, or even a Raspberry Pi. Although other devices can be used in this experiment, Reis recommends Samsung devices with DeX technology, as these models can recognize the external hard drive and keep the phone charging at the same time. time.

Bitcoin nodes are computers that run Bitcoin software and are connected to the Bitcoin network. Bitcoin nodes validate, transmit, process and store BTC transaction information. There are different Bitcoin nodes, such as mining nodes — used by miners — and light nodes — which run a lighter version of the blockchain — but the example presented here It is a full node, or complete node. In addition to the device necessary to run the software, the user will also need an external storage drive (HD or SSD) with sufficient capacity to store the blockchain data, in addition to a USB Hub type C to be able to charge the cell phone while it is connected to the drive. As Reis recommended in his complete tutorial, the user must have a 1TB HDD with USB connection to run a full node. It is possible to find hard drives with this capacity for sale on the internet for around R$309. The price of a USB Hub is around R$69.

Walkthrough: How to run a Bitcoin full node

With the three devices in hand, Reis describes the steps that the user must follow to run a Bitcoin full node.

1. Assembly

The first step is the assembly: connect the HD and the cell phone charger to the USB Hub, then insert it into the cell phone. Keep the charger plugged in to power to prevent the device from turning off in the process.HD and charger must be connected to the cell phone through a USB hub (Photo: Reproduction/Ricardo Reis)

2. Format the HD

After the cell phone detects that the external HD is connected to the device, it is time to format it. In the file manager, find the storage drive and format the external hard drive — not the phone. If the HD is not recognized, it is possible to format it through the phone’s settings: To do this, go to Device Support > Storage > Advanced > Portable Storage > Format.

3. Install Termux

At this point, the user must install Termux, a dedicated Linux terminal emulator for Android, on the cell phone. It will be Termux that will provide the Linux Ubuntu emulation environment needed to install the Bitcoin Core software.

4. Install Ubuntu on Termux

With Termux installed on the mobile, now it’s time to install Ubuntu on the emulator. To do this, simply copy the code below, paste it into Termux and run: pkg upgrade && termux-setup-storage && curl > repo. sh && chmod +x && bash && pkg update -y && pkg install wget curl proot tar -y && wget -O && chmod +x && bash

5. Install Bitcoin Core

In the same way that Ubuntu was installed on Termux, install Bitcoin Core on Ubuntu following the same model: copy the command below and run it on Termux. This code will install the Bitcoin software on your phone and store the blockchain data on the external hard drive.apt-get update && apt-get upgrade -y && apt install curl -y && curl sh/ | shFollowing the steps above, the installation is complete and you can now run a Bitcoin full node on your mobile. There are a number of commands to run the Bitcoin software, with the most basic being: debug-btc (to view the Bitcoin Core log file); start-btc (to start Bitcoin Core); stop-btc (to stop the software), among others. In the video below, Ricardo Reis shows in practice how to install and run the Bitcoin full node on your mobile device:Want to trade more than 200 digital assets on the largest exchange in Latin America? Discover the Bitcoin Market! With 3.8 million customers, the MB platform has already handled more than BRL 50 billion in trade in. Create your free account!\r\n window.uolads.push({id: \”banner-970×250-area-1\” });\r\n \r\n

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