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Also, the PiSugar 3 functions as an external watchdog reset for the Raspberry Pi.

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4G modem

If the Netrabrick lid loses communications with the internet, a 4G modem can be activated by the lid to notify about the communications failure.

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6. Unmount partition and insert the memory card on the Raspberry Pi Zero 2W. Power on the Netrabrick.

7. Connect via ssh

   Code Block

   ssh -p 2001 root@192.168.0.86 root@192.168.0.86's password: _____ _ _ ____ ____ __ | __ (_)| |/ /\ \ / / \/ | | |__) | | ' / \ \ / /| \ / | | ___/ || < \ \/ / | |\/| | | | | || . \ \ / | | | | |_| |_||_|\_\ \/ |_| |_| Welcome to PiKVM - The Open Source KVM over IP on Raspberry Pi ____________________________________________________________________________ The root filesystem of PiKVM is mounted in the read-only mode by default. Use command "rw" to remount it in the RW-mode and "ro" to switch it back. If the filesystem is busy and doesn't switch to the RO-mode, use "reboot" to reboot the device, don't leave it in the RW-mode. Useful commands: * Preventing kernel messages in the console: dmesg -n 1 * Changing the Web UI password: kvmd-htpasswd set admin * Changing the root password: passwd Links: * Official website: https://pikvm.org * Documentation: https://docs.pikvm.org * Auth & 2FA: https://docs.pikvm.org/auth * Networking: https://wiki.archlinux.org/title/systemd-networkd

8. Change the root password and web admin password
   

   Code Block

   [root@pikvm ~]# rw + mount -o remount,rw / + mount -o remount,rw /boot + set +x === PiKVM is in Read-Write mode === [root@pikvm ~]# passwd root New password: Retype new password: passwd: password updated successfully [root@pikvm ~]# kvmd-htpasswd set admin Password: Repeat: # Note: Users logged in with this username will stay logged in. # To invalidate their cookies you need to restart kvmd & kvmd-nginx: # systemctl restart kvmd kvmd-nginx # Be careful, this will break your connection to the PiKVM # and may affect the GPIO relays state. Also don't forget to edit # the files /etc/kvmd/{vncpasswd,ipmipasswd} and restart # the corresponding services kvmd-vnc & kvmd-ipmi if necessary.

10. Activate 2FA authentication with your favorite authenticator app:

    Code Block
    [root@pikvm ~]# kvmd-totp init

11. Connect via browser to the PiKVM address: 192.168.0.86. (Accept the unsecured connection, as we have not yet added a SSL certificate) using password

Install and configure Wireguard

1. Update the repo

2. Install wireguard

3. Create the config file

4. Start and test

5. Configure auto-start

6. Configure the wireguard client

Install and configure Lets Encrypt Certificates for the PiKVM

Configuring PiSugar

Add a pisugar user to the PiKVM (Raspberry Pi):

1. Connect via ssh to the PiKVM device.

2. Add a pisugar user:

[root@pikvm ~]# rw         
+ mount -o remount,rw /
+ mount -o remount,rw /boot
+ set +x
=== PiKVM is in Read-Write mode ===

useradd --system -s /usr/bin/bash pisugar
usermod -d /opt/pisugar -m pisugar
passwd pisugar

3. Add pisugar to /etc/sudoers

4. Download latest pisugar-archlinux_<version>_all.tar.gz from https://github.com/PiSugar/pisugar-power-manager-rs/releases

su - pisugar
tar -xvf pisugar-archlinux_<version>_all.tar.gz

5. Edit the PKBUILD to support the RPi Zero 2W:

   Code Block
   arch=('arm' 'armhf' 'aarch64' 'x86_64')

Attaching the lid and connecting external cables

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