How to repair GRUB from backup?

Posted by titusjaka on Ask Ubuntu See other posts from Ask Ubuntu or by titusjaka
Published on 2013-10-29T12:58:42Z Indexed on 2013/10/29 16:13 UTC
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Filed under:

grub2

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uefi

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boot-repair

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grub-efi

I have Windows 8 and Ubuntu 13.04 in dualboot. But the problem was that Windows didn't boot when GRUB is set as primary bootloader in BIOS. When the Windows EFI partition was checked as primary, Windows booted well.

Then I decided to fix it and installed Boot-Repair. First of all, I made the backup. Then updated the GRUB. The update was successful. But then Windows and Ubuntu didn't boot at all.

I've repaired GRUB using live-USB. Now I can boot Ubuntu, but Windows doesn't boot.

How can I restore boot partitions from Boot-Repair backup (.zip file)?

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