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DavideNovice

Bootable USB transform from UEFI to Legacy

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Dear All,  first of all sorry for any silly question but I am new in the apple environment.   
I have a bootable USB containing Mojave 10.14 already installed,  this USB boot from my normal PC (MBO : MSI Z97 G7,  CPU:I7 4790K, GPU:GTX108 Ti, STORAGE:SSD 860 Samsung), but I would like to instal on a old server SUPERMICRO (MBO :X8DTN+-F , CPU 2 x XEON X5680 , GPU : GTX1070TI, STORAGE: SSD 850 SAMSUNG 500GB) . 

The problem is that the SUPERMICRO BIOS (altredy updated) do not support UEFI but only LEGACY, for this reason my USB key does not boot. 

Is there any way in which I can use this key (even cloning on a new one) to obtain a bootable for LEGACY PC ?  

I am not able to build another key since I bought this key already done last year, and I do no have enought skill to download Mojave, Clover, Clover config, etc. .. to make a new bootable usb..  If someone can help me I will be very grateful. 

 

Thanks in advance

Davide

 

 

 

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Posted (edited)

No support for Pascal graphics card in Catalina. You'd be without graphics acceleration so it'd be kinda of a waste for such high performance cards...

 

Systems with legacy BIOS can run Catalina without issues. Just install Clover in legacy mode. That's all. You can find details in a few guides of mine here or here for instance.

 

If you don't want to re-do your existing key by fear of losing a good working one, you could simply use another small one, format it FAT32 and install Clover (and only clover) in legacy mode on it and the required bootpack files (Clover config, kexts, ACPI tables). You'd boot it, then insert your Catalina USB installer to install Catalina on your SuperMicro server.

 

Good luck!

Edited by Hervé

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