Crashing PROXMOX USB Coral TPU passthrough aid

[Wolk9]

My Proxmox Server with my Frigate LXC that I installed with this script:

https://community-scripts.github.io/ProxmoxVE/scripts?id=frigate

is constantly crashing out of the blue, due to some unknown issue within the frigate LXC.

I created a script that helps me out with adjusting the randomly changed Bus number of the USB Coral TPU after reboot so that even my grandmother can spin up the server again without configuring the whole shebang after a crash:

nano /usr/local/bin/update_lxc_config.sh

# Path to the LXC config file, please adjust to your frigate container number
lxc_config="/etc/pve/lxc/102.conf"

# Check if the last line in the config is already the correct mount entry
last_line=$(tail -n 1 "$lxc_config")

# Remove the last line and append the new mount entry
if [[ "$last_line" =~ lxc.mount.entry:.* ]]; then
  # If the last line contains the mount entry, remove it
  sed -i '$d' "$lxc_config"
fi

# Append the new mount entry with the correct bus number
echo "lxc.mount.entry: /dev/bus/usb/00$bus_number dev/bus/usb/00$bus_number none bind,optional,create=dir 0,0" >> "$lxc_config"

echo "Successfully updated the LXC config file with bus number 00$bus_number."

then make the sh executable with:

chmod +x /usr/local/bin/update_lxc_config.sh

then create a service:

nano /etc/systemd/system/update_lxc_config.service

with the following instructions:

[Unit]
Description=Update LXC config for Coral TPU
After=network.target

[Service]
Type=oneshot
ExecStart=/usr/local/bin/update_lxc_config.sh
RemainAfterExit=true

[Install]
WantedBy=multi-user.target

then reload and enable the service with the following commands:

systemctl daemon-reload
systemctl enable update_lxc_config.service
systemctl start update_lxc_config.service

check the status after a reboot:

systemctl status update_lxc_config.service

this will do the trick for you for the USB Coral TPU passtrough, even if you are not around and your spouse or kids are restarting the proxmox server.