MP 1,1-5,1 HID: Legacy shim 2 - Still waiting for root device

[olixsm]

Hello Everyone,
After 2 days to search a solution to my problem, I need help please.

I installed a 2024 Samsung EVO 500Gb SSD in a Mac Pro 4.1->5.1 and installed Mojave on it.
When I start, the boot work correctly until the end of the process, everything is fine...
Every time I make a restart, the boot fail and stop on HID: Legacy shim 2 (two lines like that)
After one minut, the screen show the round crossed sign and a message : Still waiting for root device.
If I boot on another SSD (Western Digital 120Gb) with the same installed Mojave, the problem doesn't exist anymore
It's the same without Opencore installed and without Opencore installed.
Any ideas ?
Thank you so much

 

[Bigwaff]

Have you reviewed this thread?

PCIe SSDs - NVMe & AHCI

This is a general info thread for blade SSDs that can be used in the Mac Pro. This is a WikiPost so anyone with the proper credentials may edit it. NVMe SSDs can be used as a boot drive in the MP5,1 and MP6,1 with the latest firmware installed (beginning with version 140.0.0.0.0 for MP5,1 and...

forums.macrumors.com

 

[olixsm]

Have you reviewed this thread?

PCIe SSDs - NVMe & AHCI

This is a general info thread for blade SSDs that can be used in the Mac Pro. This is a WikiPost so anyone with the proper credentials may edit it. NVMe SSDs can be used as a boot drive in the MP5,1 and MP6,1 with the latest firmware installed (beginning with version 140.0.0.0.0 for MP5,1 and...

forums.macrumors.com

Thank you for this information, I go to look at now

 

[Macschrauber]

Maybe a 870 evo what suffer from not warm booting?

Sometimes it works, using them on the 2nd DVD plug.

Caution! Troubles with 870 evo drives on cMP 5,1 !

Hi people, I wanted to install Mojave on a new 870 evo drive and it was a desaster ! In difference to my 860 ‘s the installer didn’t reboot into the 2’nd phase . I had to hard reboot ? Later on , the drive even had’nt been recognized . That happened also after starting from another mojave drive...

forums.macrumors.com

 

[olixsm]

Maybe a 870 evo what suffer from not warm booting?

Sometimes it works, using them on the 2nd DVD plug.

Caution! Troubles with 870 evo drives on cMP 5,1 !

Hi people, I wanted to install Mojave on a new 870 evo drive and it was a desaster ! In difference to my 860 ‘s the installer didn’t reboot into the 2’nd phase . I had to hard reboot ? Later on , the drive even had’nt been recognized . That happened also after starting from another mojave drive...

forums.macrumors.com

Thank you so much, I try now

 

[olixsm]

Sometimes it works, using them on the 2nd DVD plug.

Just tried and... it's works 😁 !!!