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I have just upgraded my PC to Windows 10 after facing some problems like "grub rescue" but after upgrading ,every time I start PC I have to write 

prefix=(hd0,gpt6)/boot/grub

root=hd0,gpt6 Insmod normal Normal

so how can I solve this problem?

Runa
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  • sudo grub-install /dev/sdX – jet Jul 31 '16 at 03:34
  • You need to reconfigure grub to use the correct partition at boot: http://askubuntu.com/questions/654386/windows-10-upgrade-lead-into-grub-rescue/655027#655027 – nobody Jul 31 '16 at 06:51

1 Answers1

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Either Use A Live Ubuntu USB or boot into ubuntu and run command Open a terminal, and add the Boot Repair PPA

$ sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

Install Boot Repair

$ sudo apt-get install -y boot-repair && boot-repair

Update the GRUB 2 configuration file

$ sudo update-grub

Reinstall GRUB 2 to the drive's MBR or equivalent

Install to the drive, not to the partition. Example: sda, not sda1

$ sudo grub-install /dev/sdX

Inspect the GRUB 2 configuration file. The default is /boot/grub/grub.cfg

for more information visit how to update GRUB2

Brij Raj Kishore
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