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cant boot on Dell optiplex 9020

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I would try a 16gb USB drive. Some systems can't handle 32gb for install drives.


Are you using the safe mode and npci and nv_disable boot flags ?

are you always stopping at the exact same spot or is a different error each time?
 
i tested it with 32 and 8 G and the same ,

is always same error .
 
i tested it with 32 and 8 G and the same ,

is always same error .

try booting with CPUS=1 and also make sure your bios settings are correct. this page gives you a lot of things that you can try to see if you can get past that error?


http://www.tonymacx86.com/el-capita...apitan-install-problems.html#CategoryNoClover

also try this thread which talks about disabling your CPU EIST in Bios

http://www.tonymacx86.com/el-capita...after-osx-el-capitan-booting.html#post1114387

Make sure you have vt-D and CFG lock disabled. It sounds like your bios settings may be the issue. but you just have to figure out how to make it work on your system using these two threads above.
 
i dont have CFG lock i have CPU XD , SHOULD I DISABLE IT ?
 
i dont have CFG lock i have CPU XD , SHOULD I DISABLE IT ?

No idea. Post screen shots of your bios screens. Are you sure you are running the latest bios version? You might need to m-flash your bios for these settings to appear.
 
THANKS FOR YOUR TIME , Problem is work after disable USB3
 
THANKS FOR YOUR TIME , Problem is work after disable USB3

That is excellent!! Happy to hear.

Let us know if you need any more help! Glad you got it working.
 
  • Remove everything inside EFI/CLOVER/ from the system drive, and replace it with everything inside EFI/CLOVER/ from the USB drive
but it is not work ,

No bootable devices found
 
  • Remove everything inside EFI/CLOVER/ from the system drive, and replace it with everything inside EFI/CLOVER/ from the USB drive
but it is not work ,

No bootable devices found

Try booting back in with USB in computer. Then install clover on target drive. You will need to reformat EFI for ESP. Look in the clover notes and you'll see the terminal command you need to run.

Do you have carbon copy cloner? You might want to try and clone drive to another HD and see if it'll boot up from there?
 
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