pikvm/pages/cookbook.md

Some random and useful recipes

Take a HDMI screenshot via console on Pi-KVM

# curl --unix-socket /run/kvmd/ustreamer.sock http://localhost/snapshot -o screen.jpg

Get installed KVMD version via console

# pacman -Q | grep kvmd

Enable Serial-over-USB connection

Specifically to v2. This can be used for terminal access from the managed server to the Pi-KVM, or for any other purpose that requires a serial connection. In the last case, you only need to perform step 1 and reboot.

1. Edit /etc/kvmd/override.yaml (remove {} if this your first configuration entry) and add these lines:

   otg:
       devices:
           serial:
               enabled: true
   

2. Run the following command:

   # echo ttyGS0 >> /etc/securetty
   

3. Create the directory /etc/systemd/system/getty@ttyGS0.service.d and add a file file named ttyGS0.override into it. Afterwards edit the file and copy this into it:

   [Service]
   TTYReset=no
   TTYVHangup=no
   TTYVTDisallocate=no
   

4. Run these comands:

   # systemctl enable getty@ttyGS0.service
   # reboot
   

5. Once Pi-KVM is rebooted you will have access to a virtual serial port on the server that the USB is connected to. Use mingetty, screen, putty, or something like this to access the kvm from the server. The port is called /dev/ttyAMA0.

Enable Ethernet-over-USB network

See here.

Using Ethernet wiznet w5500 with ZeroW

See here.

Disable mass storage emulation

See here.

Upload .ISO images manually

See here.

Mass Storage Drives

See here.

Create a Microsoft Windows based Flash disk image

See here.

Create a drive image on macOS

See here.