I have a single boot Acer laptop where I performed a clean installation of Ubuntu.

After boot it shows a bootable device not found error.

I tried running boot-repair and when it finishes it says that repair was successful, but the error persists.

The laptop did not have any operating system previously installed on it.

I also tried to deactivate UEFI, but the desktop would not load correctly making it impossible to install.

Any ideas on how to fix it?

  • so what error do you get when you boot ?
    – Panther
    Mar 15, 2015 at 23:36
  • 2
    A shot in the dark: Try disabling Secure Boot. Note that Secure Boot is not synonymous with UEFI. In fact, given your configuration, it's best to boot in EFI/UEFI mode, so you should not attempt to disable UEFI (aka enable BIOS, CSM, or legacy support). You might also want to read this page I wrote on EFI-mode installs or this Ubuntu community wiki on the subject.
    – Rod Smith
    Mar 16, 2015 at 1:42
  • bodhi.zazen -> The actual error is literally "Bootable device not". Rod Smith -> I couldn't find an option to disabling secure boot,only to disable UEFI, anyway I'll check it again and I'll post how it went.
    – Era
    Mar 16, 2015 at 9:41
  • Any feed-back on the above? Disabling UEFI is definitely the way to go!
    – Fabby
    Mar 21, 2015 at 15:45
  • Disabling UEFI lead to track pad ad other problems after install. The solution was to set up a bios password and the an option to manually add trusted boot files appeared.
    – Era
    Jun 26, 2015 at 7:41

1 Answer 1


I got it work at Acer Aspire ES1-111-C827. Should be working on other devices, too. Probably the BIOS-entries are a bit different. All you have to do is to register the newly installed UEFI-file as trusted for executing in BIOS-security options.

Before installation goto BIOS-Settings, make sure to have this:

  • Security: set supervisor password;
  • Boot - BootMode: UEFI;
  • Boot - SecureBoot: enabled;

After installation again go to BIOS-Settings

  • Security - Select an UEFI file as trusted for executing, press Enter;
  • HDD0 appears, press Enter;
  • EFI appears, press Enter;
  • Go to <ubuntu> and press Enter;
  • Choose the first entry with .efi (shimx64.efi on my device) and press Enter;
  • Give it a name and press Enter;

Save changes on exiting BIOS and restart. That's it.

Some people report that they still needed to change the boot order.

  • 1
    Acer password setting: acer.custhelp.com/app/answers/detail/a_id/29349
    – oldfred
    Aug 7, 2015 at 15:36
  • 1
    It also worked for me to do all the above steps after installation.
    – david
    Mar 9, 2016 at 21:04
  • I followed the instructions; for some reason I don't get the 'Select UEFI file as trusted' option; although I can create the new boot with shimx64.efi as boot file; but it doesn't start the OS nevertheless.
    – Alex
    Dec 30, 2016 at 0:25
  • Installing with UEFI (without CSM) and SecureMode, and then disabling SecureBoot and switching to UEFI (without CSM) after install made it work for me. Jun 1, 2018 at 5:18

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