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Latitude E5570: help required to install Big Sur


volad_m
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help me pls to install macos on e5570. I have a i5 6440hq, intel hd530 gpu, 8gb ram, ac8260 wifi&bluetooth, 256gb ssd

Can not make usb bootable with opencore and macOS bigsur (((

opencore bootloader doesn't show me macOS install option(

I have a one partition on usb drive a folder structure is:

[EFI]

[com.apple.recovery.boot]

 

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I've checked all these BIOS settings, but still have this issue

I'm planning to install masOS over Windows with formatting all available space. Also I tried to download BaseSystem.dmg a 3 times to avoid checksum error and using damaged images, but still see same Opencore bootloader image with NONAME and error

00:000 00:000 OCB: DMG has been altered
00:009 00:009 OCB: LoadImage failed - Unsupported

 

All my tries was with EFI from topic starter. Just downloaded/copied it to USB flash drive and created folder com.apple.recovery.boot. Then put BaseSystem.dmg and BaseSystem.chunklist to this folder

 

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