@CaseySJ I have recently bought a new NVMe of a new kind; SK Hynix P31 Gold 1TB. By new kind I mean it is the first one of its kind with 128 layers of NAND. Anyway long story short, when I plug it in on the MB, macos does not boot.
Here is a screenshot of the boot screen after adding -v to the boot arguments:
View attachment 489884
We can see that there is an AppleNVME failed assertion and a panic a bit further up (following the applenvmerequesttimer call).
I have 2 samsung evo+ (1TB and 250GB), 1TB WD SN750 on a pciex4 adapter card and this new one. My intention was that given this new NVMe drive is currently the second fastest NVMe on the market with very low temperature, to clone my current boot NVME drive on that ssd and reformat the current macos drive (1TB) for windows 10. Windows 10 is currently installed on the evo+ 250gb and I am running out of disk space (thanks to MS flight sim which takes 110GB).
Any suggestion regarding the above issue with this SSD?
Hynix is a well known brand for memory but it is the first time they venture in the NVMe market and as such their website has not support page for firmware update.
Note that this drive boots fine with windows 10 via OC multiboot.
Thanks
PS: I tried the new NVMe drive in all MB M2 slots as well as the PCIe x4 adaptor. Same pb except when it is in the adapter card. When it is inserted in the M2 slot on that card, the SSD is not detected at all whether it is in the BIOS or Windows 10.
PS #1: just found out this reply from Hynix on the web:
"Thank you for reaching out to SK Hynix support team.
Unfortunately, SK Hynix Gold P31 is not compatible with MacOS.
We sincerely apologize for the inconvenience this may cause you.
Best regards,
SK Hynix support team."
IT turns out that the controller itself is not supported. I have found some patches that rehabman wrote 3 years ago for SSD drives that were causing issues (Hynix was one of them, not with this model but with standard SSDs) but it is too old to use.
is there a way in that case in OC to ignore/exclude this NVMe drive while booting macos but keeping it when booting windows? That would be a shame not to be able to use this SSD