Installation to M.2 storage won't boot?

[Zenja]

Most likely the incorrect disk uuid is set. See the following link for workaround.

Adventures installing Haiku to MacBook Pro (11.3, late 2014, on SSD, EFI)

Here is another useful bit of information. Using Haiku Installer, when it formats a BeFS partition, it doesnt modify the GPT UUID partition code. It still maintained the previous OS partition code, and the EFI loader would struggle to identify a Haiku partition. I had to manually scan for bootable devices every boot, and play with safe mode settings to get 2 in 3 chances of booting. Once I discovered this issue, I used gdisk (a GPT version of fdisk) to modify the GPT UUID partition code to H…

I have Haiku installed on 2 systems over nvme