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Please see this video for bios error messages.

I bought a Lenovo Ideapad 100S 11IBY that has 32bit-uefi boot. It came with Windows 10 but b it is a Intel Atom laptop and I wanted to install lxde Linux on it to use its resources well.

After a lot of online research I managed to create a UEFI 32-bit bootable lubuntu USB using linuxium (lubuntu with kernel patch for baytrail processor), and it worked!

I was happy with the installation but yesterday I decided I wanted to install mate desktop environment through terminal. After a reboot the laptop never booted to Ubuntu.

These Error messages appear again and again.:

Ubuntu failed to boot

and

boot device missing

I have tried all sorts of 32bit uefi bootable usbs, windows 10 recovery USB, and windows 10 installation USB but nothing boots.

On the boot menu I just see two repeated optiond, both options say "Ubuntu" and both fail to boot.

Can someone help me either installing back windows 10 or somehow get PST the boot errors? See the linked video at the top for error messages on my screen.

Mostafa Ahangarha
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SlothForeva
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1 Answers1

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I'm not 100% certain, but my hunch is that your package update pulled in an update of GRUB that broke your installation. Perhaps this was a switch from an EFI-mode to a BIOS-mode GRUB, with corresponding changes to GRUB's configuration file that broke the EFI-mode GRUB; or perhaps it was a more general GRUB breakage.

My suggestion, at least for a short-term fix, is to use my rEFInd boot manager:

  1. Download the USB flash drive or CD-R image of rEFInd from its downloads page.
  2. Prepare a boot medium with the image you obtain.
  3. Disable Secure Boot on the computer. (It can be done with Secure Boot active, but doing so would require jumping through quite a few extra hoops.)
  4. Boot to the rEFInd USB drive or CD-R.
  5. rEFInd should appear and enable you to boot both Windows and Ubuntu. (There may be extra boot options, some of which might not work.) Test to be sure that both Windows and Ubuntu can boot.
  6. If you can boot both Windows and Ubuntu, you can either:
    • Use the ability to boot both OSes as a temporary breather while you attempt to better diagnose and fix the problem. You might use grub-install or Boot Repair to re-install GRUB, for instance. (I don't know how well Boot Repair would work on a 32-bit UEFI system, though.)
    • Install rEFInd to your hard disk by using the PPA or Debian package (or the standard Ubuntu repos, if you're using Ubuntu 17.04). This will then bypass GRUB on a permanent basis.

Note that this is not guaranteed to work. Even if it fails, though, it may provide helpful clues in the form of error messages or symptoms. Up until step #6, when you run commands to repair GRUB or install rEFInd on your hard disk, this process is relatively safe; booting rEFInd from a USB drive or CD-R is very unlikely to create new problems, since rEFInd run in this way won't write anything to the hard disk.

Rod Smith
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