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⇤ ← Revision 1 as of 2021-07-13 14:31:37
Size: 1515
Comment: everything about makarov
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Size: 1815
Comment: stuff to remove
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| * https://sleeplessbeastie.eu/2018/12/31/how-to-disable-onboard-wifi-and-bluetooth-on-raspberry-pi-3/ * {{{ dtoverlay=disable-bt }}} * systemctl disable --now hciuart |
* `dtoverlay=disable-bt` in config.txt * `systemctl disable hciuart --now` * `systemctl disable bluetooth` * reboot then `apt purge bluez bluez-firmware` |
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| * `echo 'APT::Periodic::Enable "0";' > /etc/apt/apt.conf.d/10periodic` |
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| * bluetooth.service | |
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| * Remove the Mopidy stuff that I installed | * Remove the Mopidy stuff that I installed {{{ systemctl disable mopidy --now undo this: usermod -a -G spi,i2c,gpio,video mopidy as root: pip uninstall mopidy-youtube Mopidy-PiDi Mopidy-Local mopidy-raspberry-gpio apt purge mopidy rm /etc/apt/sources.list.d/mopidy.list remove from apt-key }}} |
makarov
- RPi Zero W
- RPi OS buster Lite (based on Debian 10.10)
Linux makarov 5.10.17+ #1421 Thu May 27 13:58:02 BST 2021 armv6l GNU/Linux
- Located wherever I take it
network
Static DHCP assignment in IOT VLAN, it should have minimal access privileges, it literally only needs web access. No IPv6 apart from usual linklocal stuff.
services
- SSH
- Some avahi junk I should probably disable
apps
muzak systemd unit plays music, running as the pi user
frontpanel systemd unit manages the LCD and button inputs
Muzak app
Runs mpv with a playlist of Youtube links, super basic. Audio goes out through an I2S soundcard. Playlist loops forever as you'd expect. Playlist and extra stuff is in /home/pi
Frontpanel app
A python script with some basic GPIO interfacing, controls mpv by talking to its JSON-IPC socket. Displays images and UI on the LCD screen.
Optimisation
Aim to disable as much stuff as possible, to reduce CPU load and boot times.
Try to disable:
- bluetooth
dtoverlay=disable-bt in config.txt
systemctl disable hciuart --now
systemctl disable bluetooth
reboot then apt purge bluez bluez-firmware
- apt-daily-upgrade
echo 'APT::Periodic::Enable "0";' > /etc/apt/apt.conf.d/10periodic
- avahi-daemon.service
- keyboard-setup.service
- Make the filesystems read-only, or at least /boot can be
Remove the Mopidy stuff that I installed
systemctl disable mopidy --now undo this: usermod -a -G spi,i2c,gpio,video mopidy as root: pip uninstall mopidy-youtube Mopidy-PiDi Mopidy-Local mopidy-raspberry-gpio apt purge mopidy rm /etc/apt/sources.list.d/mopidy.list remove from apt-key