I have a mid-2015 MacBook Pro (15'') running macOS 11. Recently, I wanted to set up a dual-boot with Debian. It worked and I could boot on the two systems. I've done some sh... weird things and now the EFI of Debian isn't recognized by the system, also the Mac APFS Partition is unmounted, and not mountable because the Recovery system OF THE MAC (not the one on the Macintosh APFS Partition) is from 2015 so pre-APFS. I'm stuck with this screen or the old Recovery partition. I have on another disk a disk image of the COMPLETE Macintosh Partition (not only the data). Can someone help me to mount the disk image in APFS and put it on my mac (making it bootable) ? Thanks !!!!
PS: Yes, it's the same problem as this question, but the answer isn't understandable. So don't give me some commands without explanations, please.
PPS: If you need more infos, ask under this post.