[Bug 1143359] Re: Dell Latittude 6340u - Systems will not boot in uEFI mode

[Ivan Hu]

Please try to set Bios default, and make sure the Ubuntu UEFI boot entry is deleted. And install the Ubuntu again.
If you install in  Legacy PXE boot mode, the Ubuntu UEFI boot entry won't be created, only boot from legacy mode.
If you install in the UEFI mode, the Ubuntu UEFI boot entry will be created, and check if it can be boot.

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https://bugs.launchpad.net/bugs/1143359

Title:
  Dell Latittude 6340u - Systems will not boot in uEFI mode

Status in “grub2” package in Ubuntu:
  New

Bug description:
  After installing 12.04.2 onto two different Dell Latittude 6430u
  machines, neither would boot in uEFI mode.

  On looking at the boot options, there was an Ubuntu uEFI boot entry
  but it was not bootable.  To work around this, I had to set the boot
  mode to "Legacy mode, Secure Boot OFF".  At this point, the systems
  both were bootable.

  Prior to this, while in uEFI boot mode, the systems complained about
  no boot device available.

  both systems were installed via PXE using legacy PXE boot mode.

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