树莓派如何通过 raspi-config 关闭桌面模式 All In One

树莓派如何通过 raspi-config 关闭桌面模式 All In One

树莓派设置启动模式：切换桌面模式和命令行模式

Desktop
Command Line

GUI vs CLI

图形化界面 CLI

$ sudo raspi-config

auto login

命令行

配置文件 (❓没有找到切换 cli/desktop 配置选项)

$ sudo vim /boot/config.txt
# OR
$ sudo code /boot/config.txt

$ sudo reboot
$ sudo shutdwon -h now

bootcode.bin

https://github.com/raspberrypi/firmware/blob/master/boot/bootcode.bin

https://github.com/raspberrypi/firmware/raw/master/boot/bootcode.bin

???

https://www.raspberrypi.com/documentation/computers/config_txt.html#boot-options

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#boot-sequence

https://www.raspberrypi.com/documentation/computers/compute-module.html#bcm283x-boot-process

???

https://www.raspberrypi.com/documentation/computers/config_txt.html#autoboot-txt

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#fail-safe-os-updates-tryboot

https://www.raspberrypi.com/documentation/computers/config_txt.html#conditional-filters

demos

# ❓不好使了
$ ssh pi@rpi3b.local

$ ssh pi@192.168.18.135

# ❓没有找到 cli/desktop 切换选项
$ cat /boot/config.txt

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Raspberry Pi 4 Bootloader Configuration

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-4-bootloader-configuration

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-4-boot-flow

DVFS

DVFS 的讨论仅适用于 Raspberry Pi 4 B 型、Raspberry Pi 400 和计算模块 4。

Raspberry Pi 4 devices implement Dynamic Voltage and Frequency Scaling (DVFS).
This technique allows Raspberry Pi 4 devices to run at lower temperatures whilst still providing the same performance.

Raspberry Pi 4 设备实现动态电压和频率缩放 (DVFS)。
该技术允许 Raspberry Pi 4 设备在较低温度下运行，同时仍提供相同的性能。

dvfs=1 => allow undervoltage / 允许欠压
dvfs=2 => fixed voltage for default operating frequencies
dvfs=3 => scale voltage up on demand for over clocking (default). If over_voltage is specified in config.txt then dynamic voltage scaling is disabled causing the system to revert to dvfs=2.

https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#using-dvfs

$ vcgencmd get_config int

$ vcgencmd get_config int | grep dvfs
dvfs=3

refs

Raspberry Pi command line tools vcgencmd All In One

https://www.cnblogs.com/xgqfrms/p/17455140.html

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