Guide for Raspberry Pi

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Here's a quick start start script for 32bit Raspberry Pi OS that you can run that automates the instructions below to download and copy all files and start the Hydra wallet in daemon Mainnet mode:
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wget -O - https://raw.githubusercontent.com/meshungina/hydra/main/install-run-gui-wallet-pi.sh | bash
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Once done please see: Getting information through the cli​
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Manual installation:
Step 1 - Download
Before starting ensure that your system is up to date by executing:
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sudo apt-get install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils git cmake libboost-all-dev libgmp3-dev
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sudo apt-get install software-properties-common
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sudo apt-get update
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sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler qrencode
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Select the latest wallet version from the link below:
​Latest Releases​
Here you will find wallets for different types of operating systems. You will need to download the arm-linux version for your Raspberry.
Create a directory called Hydra and download the zip file to it:
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mkdir ~/Hydra
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cd ~/Hydra/
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wget -N https://github.com/Hydra-Chain/node/releases/download/hydra_v0.18.5.6/hydra-0.18.5.6-arm-linux-gnueabihf.zip
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Make sure to replace the above link with the newest version available.
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Step 2 - Unzip
Extract the archive
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unzip -o hydra-0.18.5.6-arm-linux-gnueabihf.zip
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Your file may be named differently, depending on the wallet version.
Step 2b - Copy config file
Note: For the current Hydra testnet you will also need to copy the latest hydra.conf file from the zip and place into the /.hydra/ folder. This is a different directory from ~/Hydra. Notice there is a dot before the name and it is lower case. 
Create ~/.hydra folder then and copy the hydra.conf from the current directory into it.
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mkdir ~/.hydra
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cp ~/Hydra/hydra.conf ~/.hydra
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Step 3 - Run
The binaries will then be in ~/Hydra/bin/ where you can cd into with 
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cd ~/Hydra/bin/ 
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Either run the command-line daemon (add '-testnet' if you wish to connect to testnet):
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./hydrad -daemon
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Call the daemon using(add '-testnet' if you are connected to testnet): 
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./hydra-cli getinfo
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Or you can run the GUI(add '-testnet' if you are connecting to testnet):
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./hydra-qt
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If you are updating your node and experience issues try starting with these flags to rebuild:
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 -rescan -reindex
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If you are experiencing errors with libboost you can try fixing it with these commands:
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sudo apt-get update
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sudo apt upgrade -y
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sudo apt-get install git autoconf libtool libboost-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev libboost-chrono-dev libboost-random-dev libssl-dev libevent-dev libboost-test-dev
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The node runs on port TCP 13333 for the Hydra Testnet and TCP 3338 for Mainnet. You may need to open these ports on the router and operating system. For additional information please see the Firewall Settings section.
 Setup for 64 bit Ubuntu Desktop 20.10 for pi
Here's a quick start script for Arm 64 bit devices. You can run that automates the instructions below to download and copy all files and run the Hydra wallet daemon in Mainnet:
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wget -O - https://raw.githubusercontent.com/meshungina/hydra/main/install-run-gui-wallet.20.10PI64.sh | bash
Copied!
Manual installation
Step 1 - Download
Before starting ensure that your system is up to date:
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sudo apt update -y
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sudo apt upgrade -y
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sudo apt -y install build-essential libtool autotools-dev automake pkg-config libssl-dev libevent-dev bsdmainutils git cmake libboost-all-dev libgmp3-dev libzmq3-dev
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sudo apt-get -y install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler qrencode
Copied!
Select the latest wallet version from the link below:
​Latest Releases​
Here you will find wallets for different types of operating systems. You will need to download the aarch64 version for your Raspberry or other arm device running 64 bit OS.
Create a directory called Hydra and download the zip file to it:
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mkdir ~/Hydra
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wget -N https://github.com/Hydra-Chain/node/releases/download/hydra_v0.18.5.6/hydra-0.18.5.6-aarch64-linux-gnu.zip -P ~/Hydra
Copied!
Make sure to replace the above link with the newest version available.
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Step 2 - Unzip
Extract the archive
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unzip -o hydra-0.18.5.6-aarch64-linux-gnu.zip
Copied!
Your file may be named differently, depending on the wallet version.
Step 2b - Copy config file
Note: For the current Hydra testnet you will also need to copy the latest hydra.conf file from the ~/Hydra directory and place it into the /.hydra/ folder. This is a different directory from ~/Hydra - Notice there is a dot before the name and it is in lower case. 
Create .hydra folder and copy the hydra.conf file into it.
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mkdir ~/.hydra
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cp ~/Hydra/hydra.conf ~/.hydra
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You can now navigate to where the Hydra binaries are to initialize them:
Step 3 - Run
If you have unzipped the file in the ~/hydra folder the binaries will then be in ~/Hydra/bin/ where you can cd into with 
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cd ~/Hydra/bin/ 
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Either run the command-line daemon (add '-testnet' if you want to connect to testnet):
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./hydrad -daemon
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Call the daemon using(add'-testnet' if you are connected to testnet):: 
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./hydra-cli getinfo
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Or you can run the GUI(add '-testnet' if you want to connect to testnet):
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./hydra-qt
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It is recommended when updating binaries to start with these additional flags the first time:
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-rescan -reindex
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 If you are experiencing errors with libboost you can try fixing it with these commands:
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sudo apt-get update
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sudo apt upgrade -y
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sudo apt-get install git autoconf libtool libboost-dev libboost-system-dev libboost-filesystem-dev libboost-thread-dev libboost-chrono-dev libboost-random-dev libssl-dev libevent-dev libboost-test-dev
Copied!
The node runs on port TCP 13333 for the Hydra Testnet and TCP 3338 for Mainnet. You may need to open these ports on the router and operating system. For additional information please see the Firewall Settings section.
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Getting information through the cli
General wallet information balance/staking
You can view your Coin balance and amount currently staked with the following command:
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./hydra-cli getwalletinfo
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Retrieving your LOC token balance through the cli:
This is slightly involved, first we'll need to find out the HEX equivalent of our address. We can do this through the cli with this command:
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./hydra-cli gethexaddress <YOURADDRESS>
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We can then call the contract with the "getbalance" identifier appended, which is 70a08231and replacing the last part <YOURHEXADDRESS> with your own hex address here: 
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./hydra-cli callcontract 4ab26aaa1803daa638910d71075c06386e391147 70a08231000000000000000000000000<YOURHEXADDRESS> | grep -e "output"
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Finally convert the "output" section of the response from hex to decimal to arrive at your LOC balance. 
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echo $((0x<YOUROUTPUT>))
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Below is a full example:
Amount displayed is adjusted by 8 decimal places. It is 64,172.22773141.
Time until expected block creation
To see expected time enter the following command:
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./hydra-cli getstakinginfo
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Note below the section "expectedtime". 
The "expectedtime" can be converted to human readable format using the following command (replace 351955with your expectedtime value:
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secs=351955 && echo $(($secs/86400))d $(($(($secs - $secs/86400*86400))/3600))h:$(($(($secs - $secs/86400*86400))%3600/60))m
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Update Hydra on Raspberry PI
Please follow these steps: 
Close the wallet (./hydra-cli stop or clicking X in the Hydra gui)
Ensure that you have a backup copy of your wallet.dat file and data folder (.hydra) before you proceed. Updating the client generally does not touch the wallet or blockchain data but it is good practise to always have the latest backup in case something goes wrong.
Download the latest version for your operating system from https://github.com/Hydra-Chain/node/releases and replace the files in the corresponding folders.
Voila! you've updated Hydra to the latest version available!
When updating your node to avoid any issues, it is recommended to add the flags -reindex -rescan
Links
The Webwallet can be found at: https://webwallet.hydrachain.org/​
The Testnet Explorer can be viewed at: https://testexplorer.hydrachain.org/​
The Testnet Faucet is at: https://faucet.hydrachain.org/​
The Mainnet Explorer can be viewed at: https://explorer.hydachain.org/​
Desktop wallet basic usage
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