아래 링크 참고

https://bindio-coding.tistory.com/entry/우분투Ubuntu-2204-멀티부팅듀얼부팅-설치-2-Ubuntu-설치

Good basic knowledge before downloading

GPT 추천 installation Type

100GB 정보 partition 했을때 “installation type”

device for boot loader installation (whole drive, 그래야 부팅할때 os 선택가능)

겪었던 이슈와 해결법: sudo upgrade을 한 이후로 부팅이 안되는 문제를 겪었음,최신 kernal들이 호환성 이슈가 있는거 같음 (아래는 문제가 생기는 이유 설명과 잘 작동하는 6.8.0-56 커널로 유지 시키는 방법)

⚠️ Why reboot can break after apt upgrade

• On Ubuntu 22.04 HWE (what you’re running now), apt upgrade often pulls in new kernel versions (e.g. 6.8.0-XX → 6.11.x later).
• If your Wi-Fi/Ethernet or GPU drivers don’t like the new kernel, the system may fail to boot or networking may stop working.
• That’s why your old install got messed up after upgrading.

해결법 (업그레이드 안하고, 실수로 sudo upgrade해도 막히게 아래 명령을 터미널에 넣기

✅ How to stay safe

If you want to keep your current working kernel (6.8.0-56) and still install apps without worrying about kernel updates, you can hold the kernel packages:

sudo apt-mark hold linux-image-generic linux-headers-generic