I´m searching many days but did not a solution.
I am using a iMac 19,2 from 2019.
Normally I use Linux for my daily business.
Now I have tried Haiku on my laptop for a long time and its like… year - I like it
Here is what my problem is:
I create a installation media (tested all things: partition with direct dd of image, live boot from usb, efi boot from external hdd, formated internal hdd with efi partition and tried to boot…)
All the time I try it, I get only a black screen.
I can choose the Haiku EFI-boot via ALT on startup.
After that - nothing.
No logo, no splash - just black.
If I wait about 5 minutes, the iMac simply reboots.
I have tried do blacklist the intel_extreme and many other drivers, without success.
I can´t get in the bootloader with shift or space bar, get only black screen.
I have also installed Haiku from my laptop to external hdd and booted from there same thing.
Also I have installed Haiku via VirtualBox and direct access to the partition on the internal hard drive.
In Virtualbox it boots fine and I can disable all drivers during boot.
But, if I really boot it…
…I must not tell it…
…nothing…
I have currently no idea what to do, because I don´t get any error or some other messages.
Some ideas ?
I have currently installed Linux and can test anything.
Thank you for helping (any sorry for my really bad english )
@Diver: Already tried it.
Yesterday I have removed all usb devices and wiped fully the internal SSD drive to MBR and GPT.
Also resetted the NVRAM of the iMac.
I always getting the same result: nothing.
I think it is as @BlueHorse speak: lack of drivers.
Ah, I must say sorry !
I have a brand iMac from the beginning of 2021 (Intel machine !)
In Linux I get the message, it´s a iMac 19,2 from 2019 but thats incorrect.
The big issue with Mac hardware is it really isn’t “pc compatible”, meaning you have to add a lot of support code for poorly documented things which are non-standard and Apple specific.
A good example (which is likely relevant for your hardware) is the T2 chip. Haiku would need to “unlock” access to the keyboard via the T2 chip. The T2 chip prevented Linux from booting on these Mac’s for a year or two.
I’m not saying it can’t be done… but the hardware is expensive and the Mac doesn’t have traditional serial ports for kernel logs… so a black screen is a black box to debug.
tldr; if you’re not willing to debug this one (or find someone to debug it for you with similar hardware), you might be better off emulating Haiku from OS X.
I know that answer isn’t satisfying, but trying to be realistic