Neither Windows 8 or BIOS wont boot after linux install.

Dylan-periastron

Reputable
Jun 29, 2014
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4,510
Hello,

I've recently been dual booting windows 8 and fedora 20 (and one point ubuntu). My fedora kernal wouldn't load in GRUB one day so I decided to reinstall fedora using a live usb (My laptop doesn't have a OD). unfortunately when I was freeing up space on my partition I may of deleted something I shouldn't of, because now when I boot up. boot manager only gives me the fedora grub boot option. I can't even access my BIOS or recovery mode. the only command that works on boot is f12 which brings me to a optionless boot manager.

I've been going through forums and forums to figure out what I may have done. but unfortunately I'm a bit new to linux so I'm unable to pin point exactly what I've done wrong. I've installed a windows 8 iso on a live usb and the boot manager (and Grub) won't pick it up. I'm at a loss. luckily my new fedora installation is working and I know my windows partition is still intact since I'm able to mount on it and take files I need.

here's my output for fdisks -l

Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: FAF7B893-EA9B-4853-9CE0-487E0AE01B25

Device Start End Size Type
/dev/sda1 2048 821247 400M Windows recovery environment
/dev/sda2 821248 1230847 200M EFI System
/dev/sda3 1435648 1697791 128M Microsoft reserved
/dev/sda4 1697792 1187741695 565.6G Microsoft basic data
/dev/sda5 1570736128 1775534079 97.7G Microsoft basic data
/dev/sda6 1775536128 1814597631 18.6G Linux filesystem
/dev/sda7 1814597632 1916997631 48.8G Linux filesystem
/dev/sda8 1187741696 1188765695 500M Microsoft basic data
/dev/sda9 1918896128 1953523711 16.5G Windows recovery environment
/dev/sda10 1290141696 1291165695 500M Microsoft basic data
/dev/sda11 1291165696 1570736127 133.3G Linux LVM

Thanks.

 
Solution
Here a site that may help you out with your problem:
http://fosswire.com/post/2009/05/restoring-overwritten-grub/
It appears that you may have overwritten your GRUB

reyomtrebor

Reputable
Jun 28, 2014
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Here a site that may help you out with your problem:
http://fosswire.com/post/2009/05/restoring-overwritten-grub/
It appears that you may have overwritten your GRUB
 
Solution

spankmon

Distinguished
Dec 31, 2011
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18,860
Since Fedora still works... I would open a terminal in Fedora and update grub. sudo update-grub ..then I'd reboot and see if the Windows loader shows up on the grub menu. I haven't used Fedora so don't know if it uses the sudo command, but if it does this might work.
 

stillblue

Honorable
Nov 30, 2012
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11,660
Unless you were in the BIOS you should not have been able to mess with it. You may want to check on flashing a new copy from your computer manufacturer.
If update-grub doesn't fix it install boot-repair or make a live boot-repair CD and use it to fix you up. It has the advantage of creating a report online you can point us to look at if it fails .
 

sulumordna

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Oct 16, 2011
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18,710


if I remember correctly it should be sudo yum update-grub