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I accidentally deleted my Linux partition from Windows, and when I restarted I always see the grub rescue screen. I did try setting root to each of the partitions, but I always got the unknown filesystem error. I found that the most suggested fix is to boot from a live CD/USB, but I can't perform that as well.

Bargain23
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2 Answers2

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Try to Boot from live Ubuntu CD/USB, Install GRUB2 in proper Partition To fix the problem.

this link fix my same problem. https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows

or if not correct it see http://howtoubuntu.org/how-to-repair-restore-reinstall-grub-2-with-a-ubuntu-live-cd

to manually install GRUB2 in Terminal.

EsmaeelE
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You are getting a error because grub cannot find the linux. You need to boot into BIOS and manually select the boot option (USB). Once you do that re-install linux and it should update your grub config so that the new linux will be loaded

Joe
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  • i'm trying to figure out how to boot from BIOS in my Lenovo laptop. I tried clicking "Esc" and all of the "F" keys but to no avail. – Bargain23 Jun 09 '17 at 15:17
  • https://www.lifewire.com/bios-setup-utility-access-keys-for-popular-computer-systems-2624463 try this. Slam those keys immediately – Joe Jun 09 '17 at 15:19