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I am having some trouble booting into Ubuntu (dual-boot laptop), please find summary below:

Overview of machine & installations

  • I have dual booted my Lenovo Ideapad 110 with Windows 8.1 and Ubuntu 20.04 (about two years ago).
  • I have recently updated the partition size for Ubuntu as shown in the image below (71.94GB = Ubuntu and 391.42GB = Windows).

Image of partition breakdown (GParted)

Image of partition breakdown (Windows Disk Manager)

Overview of Problem

After increasing my partition size everything worked for a few weeks (I was able to long into both Windows and Ubuntu using the Grub menu when starting my laptop).

However, a few days ago I tried booting into Ubuntu (after booting Windows) but noticed the following:

  • The Grub menu was missing and the only screen at startup is the Windows Boot Manager (where it only gives me the option to log into Windows).
  • An error pops up "ubuntu boot failed" when trying to boot into Ubuntu using the Boot Manager (after pressing the esc key while in the Windows Boot Manager).
  • My System Utility: Boot menu does display both Windows and Ubuntu (EFI).

Questions

  1. Why did the Grub menu disappear?
  2. Would it be possible to boot into Ubuntu ?
  3. If not, is there a way to access my data that was saved in Ubuntu?
user1118319
  • 3

1 Answers1

1

Firstly, please try Grub Repair as detailed here

Boot into a live session. Open a terminal and enter the following commands:

sudo apt-add-repository ppa:yannubuntu/boot-repair

sudo apt-get update

sudo apt-get install -y boot-repair

boot-repair

You should then get this Grub_repair

Boot Repair will begin working. It may ask you to open a Terminal and copy/paste a few commands into it.

Just follow the instructions that appear on your screen. Perform the instructions Boot Repair wants you to and click "Forward" to continue through the wizard. The tool will walk you through everything you need to do.

Restart your computer after the Boot Repair tool finishes applying its changes. Ubuntu should boot up normally.

NB! As always, Windows Fast Start (in your Windows Settings) should be turned off. In the UEFI, secure boot should be turned off and UEFI enabled.

In any event, you can recover your data, both Linux and Windows, while in an Ubuntu (or other Linux) live session. All files are accessible. Just copy it to an external hard drive. Note: you can't access Linux files while booted into Windows.