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I tried to make a live Ubuntu USB. By following these instructions. Can I install Ubuntu to my 32 GB USB pen drive? And now my laptop won't load win 10 or Ubuntu. It's stuck on GRUB.

So I believe that the root file is on the USB and I can't get grub to detect the flash drive. When I do "ls" all I get is is "hd0" with 5 gpt (0-4). On gpt1 I have Microsoft, Boot, and Ubuntu.

I'm at a loss for what to do.

Edit: on hd0,1 I have three files efi, boot, system volume information

In the efi file i have Microsoft, Boot, and Ubuntu

Preston Cox
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1 Answers1

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If it's just your MBR or grub at fault (and you didn't accidentally wipe your os), try booting on a LiveCD and run boot-repair, that should fix grub and add existing operating systems it can find back to the menu.

With the Ubuntu LiveCD, open a terminal and run 

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

then start it with 

boot-repair

There are advanced options available, but the automated ("Recommended repair") option works in most cases.

canofcolliders
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  • When I was playing with Ubuntu before this happened to boot off of USB I had to load windows, open settings, select update and security, and then it would allow me to boot from USB or CD. It never gives me a chance to load from CD before that point. And when I use the "ls" command it says error from cd0. I'll try making a live CD though and get back to you on it. – Preston Cox Apr 14 '17 at 18:06
  • Did as recommended and it no longer says error on CD but I can't seem to get it to boot. It now has cd0, cd0 apple1, cd0 apple2, cd0 msdos2. Only apple2 can be read and it doesnt have a root file. All the others return unknown filesystem. – Preston Cox Apr 14 '17 at 21:09
  • Hm, that is very strange, when you were on the livecd, did your drives show up there? This might help https://help.ubuntu.com/community/Grub2/Installing#Fixing_a_Broken_System – canofcolliders Apr 15 '17 at 08:30