[Bug 1770110] Re: Had windows 10 bootable media later installing ubuntu it is showing error not able to boo other os if using UEFI ubuntu

[Leonidas S. Barbosa]

Hi Himadri,

Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a "regular" (non-security) bug. I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privilege boundaries nor directly cause loss of data/privacy.
Please feel free to report any other bugs you may find.

I think you can try even going through bios (uefi interface) and pick
ubuntu grub2 folder or windows to boot. Or in the worst case you need to
reinstall grub. In order to achieve this you can use a livecd/pendrive
and try to restore your grub settings.

** Information type changed from Private Security to Public

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https://bugs.launchpad.net/bugs/1770110

Title:
  Had windows 10 bootable media later installing ubuntu it is showing
  error not able to boo other os if using UEFI ubuntu

Status in grub-installer package in Ubuntu:
  New

Bug description:
  if any solution you've already please email me so that I can able to
  dual boot in my laptop

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubiquity 2.21.63.2 [modified: lib/partman/automatically_partition/question]
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CasperVersion: 1.376
  Date: Wed May  9 13:27:24 2018
  InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/ubuntu.seed boot=casper only-ubiquity quiet splash ---
  LiveMediaBuild: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
  ProcEnviron:
   LANGUAGE=en_IN
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_IN
  SourcePackage: grub-installer
  UpgradeStatus: No upgrade log present (probably fresh install)

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