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My question isn't actually about dual-booting them. I have a dual-boot set up and running perfectly. There is only one flaw I was looking for an answer to. Since I haven't had any success through others asking this and using their answers I'd figure I'd ask myself. Both OS's boot perfectly fine there are no errors. I do however have to boot through the BIOS everytime if I would like to switch OS's. While this isn't necessarily a problem, it is a huge nuisance to have to rapidly press delete everytime I would rather boot into Ubuntu than Windows. I'm not necessarily looking for a Graphical boot manager. More like the boot manager rEEfit that is used to assist in selecting which OS to boot into on MAC OSX. I have tried easyBCD, and it flat out just doesn't work, it'll boot into windows fine, but it gives me EFI errors if I select Ubuntu. Maybe I'm just using it wrong I don't know. If anyone can offer any help please do!

My dual-boot is Windows 8 and Ubuntu 12.04 LTS.

Casey
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2 Answers2

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First and foremost

You have to make sure your EUFI is disabled at the BIOS. The EUFI stands for Unified Extensible Firmware Interface. To do that visit this link

Second thing to do

Download grub repair and run it and follow the on-screen instructions.

To do that visit this link

On the final note

You need to restart your system for changes to take effect.

Community
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all4naija
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Windows will only boot with UEFI, so you need UEFI enabled. Some only boot Windows with secure boot on, others will boot UEFI both Windows & Ubuntu with secure boot off. Some also have a modified UEFI that only boots the Windows efi file. The link to Boot-Repair will fix those issues. But you have to have both systems booting with UEFI either both UEFI or both UEFI secure boot. You cannot convert Windows to BIOS/CSM unless you have another licensed install and totally reinstall in BIOS with MBR partitioning.

Same link as posted before. Boot Repair -Also handles LVM, GPT, separate /boot and UEFI dual boot.: https://help.ubuntu.com/community/Boot-Repair

oldfred
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