Raspberry Pi Tweaks

In this article, you will learn how to troubleshoot and configure Wi-Fi connections on a Raspberry Pi. You will discover how to work with 5G connectivity, adjust frequencies, scan for SSIDs, update login credentials, and recover the DHCPCD service. Additionally, you will set Wi-Fi connection details specifically for use with Docker.

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openai says i should edit /etc/wpa_supplicant/wpa_supplicant.conf like this to connect to 5G wifi:

network={
ssid="<SSID>"
psk="<password>"
frequency=5180
}

also set frequency of wifi card like this:

sudo ifdown wlan0 && sudo ifup wlan0
sudo iw dev wlan0 set freq 5180

unplug ethernet, then we are golden.

traceroute baidu.com

how to check avaliable wifi ssids without network-manager:

sudo iwlist wlan0 scan | grep ESSID

default login (maybe not):

username: pi
password: raspberry

in order to start sshd, touch ssh under boot partition

recover dhcpcd service:

sudo systemctl enable dhcpcd.service
sudo systemctl restart dhcpcd.service

config the password with proot -S <path_to_rootfs> -b <boot_partition>:/boot -q qemu-arm /usr/bin/bash and passwd

you’ve installed raspap on this device. you use the default credentials. this shit will not connect to our wifi automatically, thus block your way of running docker containers on it with only macbook.

seriously? do you really need docker on macos? or just on raspberry pi?

change apt sources:

sudo sed -i 's|raspbian.raspberrypi.org|mirrors.ustc.edu.cn/raspbian|g' /etc/apt/sources.list
sudo sed -i 's|mirrordirector.raspbian.org|mirrors.ustc.edu.cn/raspbian|g' /etc/apt/sources.list
sudo sed -i 's|archive.raspbian.org|mirrors.ustc.edu.cn/raspbian|g' /etc/apt/sources.list
sudo sed -i 's|archive.raspberrypi.org/debian|mirrors.ustc.edu.cn/archive.raspberrypi.org/debian|g' /etc/apt/sources.list.d/raspi.list

using nmcli to scan and connect wifi

sudo nmcli dev wifi rescan
sudo nmcli dev wifi connect <SSID> password <PASSWORD>

sharing network:

ssh -R 1080 pi@10.42.0.33

edit /etc/network/interfaces:

auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 10.42.0.33
netmask 255.255.255.0
gateway 10.42.0.1
allow-hotplug wlan0
auto wlan0
iface wlan0 inet dhcp
#wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
wpa-ssid "<SSID>"
wpa-psk "<PASSWORD>"

install packages:

sudo apt-get -o Acquire::http::proxy="socks5h://127.0.0.1:1080/"  -o Acquire::Check-Valid-Until=false -o Acquire::Check-Date=false update --allow-releaseinfo-change
sudo apt-get -o Acquire::http::proxy="socks5h://127.0.0.1:1080/"  -o Acquire::Check-Valid-Until=false -o Acquire::Check-Date=false upgrade -y