Pi-Hole: Cómo actualizar a la última versión – Nota rápida

Saludos amigos, os conté hace un tiempo cómo monitorizar Pi-Hole con nuestro típico TIG Stack (Telegraf, InfluxDB, y Grafana). Pero nunca os he contado cómo actualizarlo a la última versión.
Pi-Hole suele sacar actualizaciones cada mes más o menos, si nos vamos a nuestra hermosa interfaz podremos ver que tenemos una nueva actualización abajo del todo:
Para actualizar, que es realmente sencillo, nos iremos por SSH a nuestro servidor de Pi-Hole y lanzaremos el siguiente comando:

pihole -up 1

Sencillo, ¿verdad? Otra razón más para amar este fantástico proyecto, el output del comando tiene que ser algo similar a esto, que en consola tiene hasta colores y demás, muy atractivo:

  [i] Checking for updates...
  [i] Pi-hole Core:     update available
  [i] Web Interface:    update available
  [i] FTL:              update available

  [i] Pi-hole core files out of date, updating local repo.
  [✓] Check for existing repository in /etc/.pihole
  [i] Update repo in /etc/.pihole...HEAD is now at cbc3fbd Merge pull request #3989 from pi-hole/release/v5.2.3
  [✓] Update repo in /etc/.pihole

  [i] If you had made any changes in '/etc/.pihole/', they have been stashed using 'git stash'

  [i] Pi-hole Web Admin files out of date, updating local repo.
  [✓] Check for existing repository in /var/www/html/admin
  [i] Update repo in /var/www/html/admin...HEAD is now at 3ff33a3 Merge pull request #1704 from pi-hole/release/v5.3
  [✓] Update repo in /var/www/html/admin

  [i] If you had made any changes in '/var/www/html/admin/', they have been stashed using 'git stash'

  [i] FTL out of date, it will be updated by the installer.

  [✓] Root user check

        .;;,.
        .ccccc:,.
         :cccclll:.      ..,,
          :ccccclll.   ;ooodc
           'ccll:;ll .oooodc
             .;cll.;;looo:.
                 .. ','.
                .',,,,,,'.
              .',,,,,,,,,,.
            .',,,,,,,,,,,,....
          ....''',,,,,,,'.......
        .........  ....  .........
        ..........      ..........
        ..........      ..........
        .........  ....  .........
          ........,,,,,,,'......
            ....',,,,,,,,,,,,.
               .',,,,,,,,,'.
                .',,,,,,'.
                  ..'''.

  [✓] Update local cache of available packages
  [i] Existing PHP installation detected : PHP version 7.4.3
  [i] Performing unattended setup, no whiptail dialogs will be displayed

  [✓] Checking apt-get for upgraded packages... 19 updates available
  [i] It is recommended to update your OS after installing the Pi-hole!

  [i] Installer Dependency checks...
  [✓] Checking for dhcpcd5
  [✓] Checking for git
  [✓] Checking for iproute2
  [✓] Checking for whiptail
  [✓] Checking for dnsutils

  [✓] Supported OS detected
  [i] SELinux not detected
  [i] Performing reconfiguration, skipping download of local repos
  [✓] Resetting repository within /etc/.pihole...
  [✓] Resetting repository within /var/www/html/admin...
  [i] Main Dependency checks...
  [✓] Checking for cron
  [✓] Checking for curl
  [✓] Checking for iputils-ping
  [✓] Checking for lsof
  [✓] Checking for netcat
  [✓] Checking for psmisc
  [✓] Checking for sudo
  [✓] Checking for unzip
  [✓] Checking for wget
  [✓] Checking for idn2
  [✓] Checking for sqlite3
  [✓] Checking for libcap2-bin
  [✓] Checking for dns-root-data
  [✓] Checking for libcap2
  [✓] Checking for lighttpd
  [✓] Checking for php7.4-common
  [✓] Checking for php7.4-cgi
  [✓] Checking for php7.4-sqlite3
  [✓] Checking for php7.4-xml
  [✓] Checking for php7.4-json
  [✓] Checking for php7.4-intl

  [✓] Enabling lighttpd service to start on reboot...
  [✓] Checking for user 'pihole'

  [i] FTL Checks...

  [✓] Detected x86_64 processor
  [i] Checking for existing FTL binary...
  [✓] Downloading and Installing FTL
  [✓] Installing scripts from /etc/.pihole

  [i] Installing configs from /etc/.pihole...
  [i] Existing dnsmasq.conf found... it is not a Pi-hole file, leaving alone!
  [✓] Copying 01-pihole.conf to /etc/dnsmasq.d/01-pihole.conf

  [i] Installing blocking page...
  [✓] Creating directory for blocking page, and copying files
  [i] Backing up index.lighttpd.html
      No default index.lighttpd.html file found... not backing up

  [✓] Installing sudoer file

  [✓] Installing latest Cron script

  [✓] Installing latest logrotate script
  [i] Backing up /etc/dnsmasq.conf to /etc/dnsmasq.conf.old
  [✓] man pages installed and database updated
  [i] Testing if systemd-resolved is enabled
  [i] Systemd-resolved does not need to be restarted
  [✓] Restarting lighttpd service...
  [✓] Enabling lighttpd service to start on reboot...
  [i] Restarting services...
  [✓] Enabling pihole-FTL service to start on reboot...
  [✓] Restarting pihole-FTL service...
  [✓] Deleting existing list cache
  [i] Neutrino emissions detected...
  [✓] Pulling blocklist source list into range

  [✓] Preparing new gravity database
  [i] Using libz compression

  [i] Target: https://raw.githubusercontent.com/StevenBlack/hosts/master/hosts
  [✓] Status: Retrieval successful
  [i] Received 58568 domains

  [i] Target: https://mirror1.malwaredomains.com/files/justdomains
  [✗] Status: Not found
  [✗] List download failed: no cached list available

  [i] Target: https://www.sunshine.it/blacklist.txt
  [✓] Status: Retrieval successful
  [i] Received 82108 domains

  [✓] Storing downloaded domains in new gravity database
  [✓] Building tree
  [✓] Swapping databases
  [i] Number of gravity domains: 140676 (131363 unique domains)
  [i] Number of exact blacklisted domains: 6
  [i] Number of regex blacklist filters: 0
  [i] Number of exact whitelisted domains: 16
  [i] Number of regex whitelist filters: 1
  [✓] Flushing DNS cache
  [✓] Cleaning up stray matter

  [✓] DNS service is listening
     [✓] UDP (IPv4)
     [✓] TCP (IPv4)
     [✓] UDP (IPv6)
     [✓] TCP (IPv6)

  [✓] Pi-hole blocking is enabled

  [i] The install log is located at: /etc/pihole/install.log
Update Complete! 

  Current Pi-hole version is v5.2.3.
  Current AdminLTE version is v5.3.
  Current FTL version is v5.4.

Eso es todo amigos, una entrada sencilla, rápida, pero que seguro que os salva de googlear y perder tiempo buscándolo.

Una vez actualizamos, si nos vamos a nuestra interfaz web ya podremos ver la nueva versión: