I run proxmox 8 on an old 2015 ish Macbook Pro. 16GB memory, silent, 500GB SSD, it’s a good machine. When Proxmox 9 came out, I wanted to upgrade it to 9. Proxmox has an upgrade guide. Followed it, everything went fine. After reboot and upon ssh, I realized, root was mounted read-only.1
Starting with Macbook M1s, you cannot simply delete partitions in the hard disk. If you are one of those that installs linux and edits partitions, you might get into a stage where you cannot create/edit partitions anymore. Diskutil commands also will not help you. As a last resort, you might want to reset the hard-disk and its not easy as in the old models. To make matters worse, you’re probably in recovery mode.