Raspibolt Upgrade

** BACKUP BEFORE UPGRADE
* Log in as user "admin".  
* Backup essential files on external hard disk  
  ```sh
  $ sudo su - bitcoin
  $ mkdir backup_hdd
  $ tar cvf backup_hdd/bitcoin.tar .bitcoin/bitcoin.conf .bitcoin/wallet.dat .bitcoin/peers.dat .bitcoin/banlist.dat
  $ tar cvf backup_hdd/lnd.tar .lnd/lnd.conf
  $ exit
  ```
* Shutdown system
  ```sh
  $ sudo shutdown now
  ```
* Remove the microSD card and connect it to your regular computer  
* Follow [this guide to create a disk image:](https://lifehacker.com/how-to-clone-your-raspberry-pi-sd-card-for-super-easy-r-1261113524).  

---

** LINUX UPGRADE  
* Log in as user "admin".  
* It is important to keep the system up-to-date with security patches and application updates. The “Advanced Packaging Tool” (apt) makes this easy. Do this regularly every few months to get security related updates.  
* To reduce the potential for data corruption, we don’t want any of the services running while working through this upgrade.  

* Stop and disable each service:  
  ```sh
  $ sudo systemctl stop btcrpcexplorer
  $ sudo systemctl stop electrs
  $ sudo systemctl stop lnd
  $ sudo systemctl stop bitcoind
  $ sudo systemctl stop tor
  $ sudo systemctl disable btcrpcexplorer.service
  $ sudo systemctl disable electrs.service
  $ sudo systemctl disable lnd.service
  $ sudo systemctl disable bitcoind.service
  $ sudo systemctl disable tor.service
  ```
  
* Enter the folowing command ```sudo raspi-config```, then choose ```8 Update```.
	
* Check if there is any bootloader update:  
  ```sh
  $ sudo rpi-eeprom-update
  ```
* If there is any bootloader update, enter the folowing command ```sudo raspi-config```, then choose ```6 Advanced options```, then ```A7 Boot ROM Version``` and then ```E1 Latest```, to update the Bootloader of the Raspberry. It will t the system afterwards.    
* Wait 5 minutes to give it enough time to install the new bootloader.
* Restart the Raspberry once again after installing the bootloader, just to be sure: ```sudo reboot```.  

* Install system updates and reboot:
  ```sh
  $ sudo apt update
  $ sudo apt --fix-broken install
  $ sudo apt full-upgrade
  $ sudo apt install raspi-config rpi-eeprom avahi-daemon nyx iftop htop git curl bash-completion jq qrencode dphys-swapfile hdparm --install-recommends
  $ sudo reboot
  $ sudo apt --fix-broken install
  $ sudo apt autoremove
  ```
  
* Start and enable each service:  
  ```sh
  $ sudo systemctl enable tor.service
  $ sudo systemctl enable bitcoind.service
  $ sudo systemctl enable lnd.service
  $ sudo systemctl enable electrs.service
  $ sudo systemctl enable btcrpcexplorer.service
  $ sudo systemctl start tor
  $ sudo systemctl start bitcoind
  $ sudo systemctl start lnd
  $ sudo systemctl start electrs
  $ sudo systemctl start btcrpcexplorer
  ```

* Reboot the system, just to check everything starts up after a reboot: ```sudo reboot```.  

* Wait for some minutes for the services to stabilize, check services are up and sync: ```raspibolt```.  

---

** BITCOIN CORE UPGRADE
* [Updating to a new release](https://github.com/bitcoin/bitcoin/releases) should be straight-forward, but make sure to [check out the change log first](https://github.com/bitcoin/bitcoin/tree/master/doc/release-notes).  

* Log in as user "admin".  

* Stop and disable each service:  
  ```sh
  $ sudo systemctl stop btcrpcexplorer
  $ sudo systemctl stop electrs
  $ sudo systemctl stop lnd
  $ sudo systemctl stop bitcoind
  $ sudo systemctl stop tor
  $ sudo systemctl disable btcrpcexplorer.service
  $ sudo systemctl disable electrs.service
  $ sudo systemctl disable lnd.service
  $ sudo systemctl disable bitcoind.service
  $ sudo systemctl disable tor.service
  ```
PENDIENTE DESGLOSAR
	-Download, verify, extract and install the Bitcoin Core binaries as described in the Bitcoin section of this guide.
	-Take care choosing ARM32 or ARM64 bits.
	https://regiregi22.github.io/RaspiNail/raspibolt_30_bitcoin.html

* Reboot the system: ```sudo reboot```.  

* Start and enable each service:  
  ```sh
  $ sudo systemctl enable tor.service
  $ sudo systemctl enable bitcoind.service
  $ sudo systemctl enable lnd.service
  $ sudo systemctl enable electrs.service
  $ sudo systemctl enable btcrpcexplorer.service
  $ sudo systemctl start tor
  $ sudo systemctl start bitcoind
  $ sudo systemctl start lnd
  $ sudo systemctl start electrs
  $ sudo systemctl start btcrpcexplorer
  ```

---

** ELECTRS UPGRADE

* [Updating to a new release](https://github.com/romanz/electrs/releases) should be straight-forward, but make sure to [check out the change log first](https://github.com/romanz/electrs/blob/master/RELEASE-NOTES.md).  

* Log in as user "admin".  

* Check what version you have vs that available as lastest release:  
  ```sh
  $ cd /home/admin/rust
  $ currentelectrs=$(head -n 1 electrs/RELEASE-NOTES.md | awk '{print "v"$2}')
  $ echo "Current = ${currentelectrs}"
  $ electrsgit=$(curl -s https://api.github.com/repos/romanz/electrs/tags | jq -r '.[0].name')
  $ echo "Available = ${electrsgit}"
  ```

* If the available version is newer, then you can proceed with the following.  

* Stop and disable each service:  
  ```sh
  $ sudo systemctl stop btcrpcexplorer
  $ sudo systemctl stop electrs
  $ sudo systemctl stop lnd
  $ sudo systemctl stop bitcoind
  $ sudo systemctl stop tor
  $ sudo systemctl disable btcrpcexplorer.service
  $ sudo systemctl disable electrs.service
  $ sudo systemctl disable lnd.service
  $ sudo systemctl disable bitcoind.service
  $ sudo systemctl disable tor.service
  ```
  
  ```sh
  $ # backup the current one
  $ mv electrs electrs-v${currentelectrs};

  $ # clone the most recent tagged version
  $ git clone --branch ${electrsgit} https://github.com/romanz/electrs.git

  $ # Build it
  $ cd electrs
  $ cargo build --locked --release

  $ # Stop the service, copy the binary over, and start the service back up
  $ sudo systemctl stop electrs
  $ sudo cp ./target/release/electrs /usr/local/bin/
  ```
  
* Start and enable each service:  
  ```sh
  $ sudo systemctl enable tor.service
  $ sudo systemctl enable bitcoind.service
  $ sudo systemctl enable lnd.service
  $ sudo systemctl enable electrs.service
  $ sudo systemctl enable btcrpcexplorer.service
  $ sudo systemctl start tor
  $ sudo systemctl start bitcoind
  $ sudo systemctl start lnd
  $ sudo systemctl start electrs
  $ sudo systemctl start btcrpcexplorer
  ```
---

** BTC RPC EXPLORER UPGRADE  

* [Updating to a new release](https://github.com/janoside/btc-rpc-explorer/releases) should be straight-forward, but make sure to [check out the change log first](https://github.com/janoside/btc-rpc-explorer/blob/master/CHANGELOG.md).

* Log in as user "admin".  

* Stop and disable each service:  
  ```sh
  $ sudo systemctl stop btcrpcexplorer
  $ sudo systemctl stop electrs
  $ sudo systemctl stop lnd
  $ sudo systemctl stop bitcoind
  $ sudo systemctl stop tor
  $ sudo systemctl disable btcrpcexplorer.service
  $ sudo systemctl disable electrs.service
  $ sudo systemctl disable lnd.service
  $ sudo systemctl disable bitcoind.service
  $ sudo systemctl disable tor.service
  ```
  
* Open a “btcrpcexplorer” user session.
  ```sh
  $ sudo su - btcrpcexplorer
  ```
  
* Fetch the latest GitHub repository information and check out [the newest release](https://github.com/janoside/btc-rpc-explorer/releases):
  ```sh
  # Get the latest version:
  $ cd ~/btc-rpc-explorer
  $ git fetch
  $ git checkout v3.2.0
  ```
  
  ```sh  
  # If the checkout gives an error, enter:
  $ git stash
  ```
  
  ```sh
  # Install the new version:
  $ npm install
  $ npm fund
  $ npm audit fix
  $ exit
  ```
  
* Start and enable each service:  
  ```sh
  $ sudo systemctl enable tor.service
  $ sudo systemctl enable bitcoind.service
  $ sudo systemctl enable lnd.service
  $ sudo systemctl enable electrs.service
  $ sudo systemctl enable btcrpcexplorer.service
  $ sudo systemctl start tor
  $ sudo systemctl start bitcoind
  $ sudo systemctl start lnd
  $ sudo systemctl start electrs
  $ sudo systemctl start btcrpcexplorer
  ```