I accidentally deleted everything in usr/bin (and possibly more) and trying to recover my Ubuntu.

First, I tried to chroot with a bootable USB but my USB was not recognized by Grub. I have just bought my ASUS zenbook and only had 2 files in my Ubuntu, so I decided to reinstall it.

So, I deleted the Ubuntu partition and inserted my bootable USB. Now, I see a new black page saying GNU Grub with minimal bash in white and cannot access Windows.

I checked my bootable USB on another machine, and it is perfectly working there. What should I do to reinstall Ubuntu?

  • Have you checked your BIOS and see if your USB Device is listed above Internal Hard Disk in boot order? Nov 19, 2017 at 9:46
  • Why do you need to delete Ubuntu partition just install on top of it! In any case chack the boot order Nov 19, 2017 at 9:47
  • @George Because I read so. How to check my boot order if I only see Grub?
    – Heuyie
    Nov 19, 2017 at 9:55
  • @ManishKumarBisht Thanks for your comment. How to get to Bios from Grub?
    – Heuyie
    Nov 19, 2017 at 9:55
  • 1
    @George I have been pressing all those but I did not know that I need to press them before it gets to Grub. Now, I was able to change boot order. Thanks.
    – Heuyie
    Nov 19, 2017 at 10:24

1 Answer 1


I needed to press esc before Grub shows up to change boot orders!

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