참고: https://elinux.org/RPi_U-Boot https://pranavlavhate761157457.wordpress.com/2018/05/14/porting-of-u-boot-on-raspberrypi-3/ PXE PXE Preboot Execution Environment Archive network booting을 위해, standard networking protocol(IP, UDP, DHCP, TFTP)들이 사용 Server Pi Client Pi (network boot) 로 이루어져 있다. PXE boot flow 출처: https://cdn.linuxhit.com/wp-content/uploads/2019

raspberrypi boot SoC Pi 3B Raspberry Pi 3 Specifications Category|Elements :---|:--- SoC|Broadcom BCM2837 CPU|4× ARM Cortex-A53, 1.2GHz GPU|Broadcom VideoCore IV RAM|1GB LPDDR2 (900 MHz) Networking|10/100 Ethernet, 2.4GHz 802.11n wireless Bluetooth|Bluetooth 4.1 Classic, Bluetooth Low Energy Storage|microSD GPIO|40-pin header, populated Ports| HDMI, 3.5mm analogue audio-video jack, 4× USB 2.0, Ethernet, Camera Serial Interface (CSI), Display Serial Interface (DSI) http://archive.

raspberrypi4-64 bit full: https://downloads.raspberrypi.org/raspios_arm64/images/ lite: https://downloads.raspberrypi.org/raspioslitearm64/images/ 이미지 설치 후, 확인 micro SD에 Raspberrypi4-64 라즈비안 이미지를 설치 후, /boot 파티션이 잡힌다. $ sudo gdisk /dev/mmcblk0p1으로 보니까 파티션 테이블 스캔 결과 MBR이다.![](https://images.velog.io/

Environment HW 1-1. raspberry pi 3 b+ OS 2-1. raspbian-lite sources.list Package Mirror Archive: https://www.raspbian.org/RaspbianMirrors https://dailylime.kr/2021/01/%ED%8A%9C%ED%86%A0%EB%A6%AC%EC%96%BC-docker%EB%A1%9C-apt-mirror-%EB%AF%B8%EB%9F%AC%EC%84%9C%EB%B2%84%EB%A5%BC-%EA%B5%AC%EC%B6%95%ED%95%B4%EB%B3%B4%EC%9E%90/