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mrjayviper

How to create a UEFI USB installer?

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I want to use UEFI OSX booting on my S2600CP2 board. It's currently booting using legacy. I also have no problems creating a legacy USB installer.


I know the board supports UEFI as I can boot Ubuntu (both USB installer and installed Ubuntu into an SSD) using UEFI. Windows also boots on UEFI (shows up as Windows Boot Manager or something like).


I tried these 2 guides when creating the installer:


1. I followed this guide (https://github.com/Pavo-IM/CloverInstall/wiki/Yosemite) when creating a bootable UEFI clover USB installer.

2. Dual CPU.dmg guide from rampagedev


Observations:

1. When booting the OSX USB installer, there's no UEFI label unlike in Ubuntu. I have no choice but to select the USB stick from the selection and when it tries to boot, all I see is the cursor blinking.

2. The USB stick was formatted using GPT (confirmed with diskutil list)


Any ideas what I could be doing wrong? Thanks a lot!


ps. From what I can remember all SATA ports on the board are configured as AHCI. not sure if this matters.

hackintosh (trying): HP Z820 + 2x E5-2643 V1 + AMD 5700XT + 64GB

main desktop: iMac 5k 2017

main laptop: MBP 15in 2017

spare laptop: MBP 13in 2016

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for install UEFI just use it in clover

1337021852_MaLd0n2018-07-18s10_33_58.png.4349cc77bba24786919466c93f2d63d8.png

 

some mobos intel have a problems and we need activate partition

u can use it, boot in legacy and uefi

1577673743_MaLd0n2018-07-18s10_35_15.png.6319f7e4977eb64e3ec6f3bcc88528ef.png

1676193676_MaLd0n2018-07-18s10_35_21.png.946057cbb29ddb6f2fcd91d68385756e.png

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