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fedora 25 dual boot

asked 2017-08-30 12:33:46 -0500

Bill B gravatar image

I am a notice linux user but enjoyed having my desktop boot with the ability to have linux on 1 drive or Windows on the other. When I installed Fedora 24, the install script noted that I had a Windows disk and asked if I wanted a dual boot system. Yes, and it was fine.

The computer eventually crashed in a big way and I have a new desktop. I have a 700 GB HD for linux and a 2 TB disk for Windows. Installed Fedora 26 onto the 700GB drive and the installation did not give me the option of having a dual boot system. So naturally when I boot I go straight to Windows.

Being a novice I am thinking that 24 produced a grub file on the Windows disk and that is what gave me the option.

Anyway I can reproduce this for 26?


Bill B.

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Check booting settings in BIOS, you want disk with Fedora to be the first boot device. Then grub will load and let you choose between Fedora and Windows.

ozeszty gravatar imageozeszty ( 2017-08-31 04:14:46 -0500 )edit

You have to check if your system starts as legacy bios or uefi. If you are on uefi, verify on partition section if anaconda will use the boot up partition. Also, if you installed windows on uefi mode, don't change into legacy bios because there is no mbr and partitions are on gpt.

alextheoto gravatar imagealextheoto ( 2017-08-31 12:39:52 -0500 )edit

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answered 2017-08-31 10:05:11 -0500

Sardathrion gravatar image

updated 2017-08-31 10:07:46 -0500

I had a very similar problem which resulted in Windows trashing the MBR. The "solution" was to reinstall Windows 10 with UEFI enabled and then re-install Fedora with UEFI enabled. This solved it. It was a right pain. Thankfully, I had backups of all my data so it did not take long to restore both machines to what they were before.

As per another comment, make sure that the BIOS is booting from the Linux disk and not Windows…

You could also run a Fedora live distribution and attempt to repair the MBR… I have had mixed success with that.

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Asked: 2017-08-30 12:33:46 -0500

Seen: 76 times

Last updated: Aug 31 '17