[Bug 1201257] Re: Secure Boot doesn't work with ASUS S56CB

[Şâkir Aşçı]

> In the meantime, after installation you can do the following:
> 
>  sudo apt-get install grub-efi-amd64-signed shim-signed
>  sudo grub-install --uefi-secure-boot

I want to continue with these commands but won't they install Ubuntu
bootloader (GRUB) as default and overwrite Windows 8's UEFI/MBR (or
whatever it's called)?

When I purchased computer it came without any installation media, so if
I lose entry to Windows, I'll not be able to fix it (I'm not sure
whether there's a way without a Windows DVD and the fact that they don't
give one is really awful). I am afraid of not being able to start
Ubuntu, and in addition not being able to reach Windows 8. So, that was
the reason for not installing Ubuntu's GRUB on /dev/sda. Can you suggest
me another way which doesn't erase Windows' bootloader?

And also, thank you for all the help!

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https://bugs.launchpad.net/bugs/1201257

Title:
  Secure Boot doesn't work with ASUS S56CB

Status in “shim” package in Ubuntu:
  Incomplete

Bug description:
  Here are the information and the exact steps I followed:

  - My laptop is ASUS S56CB with Windows 8 pre-installed.
  - Prepared partitions using Windows' own disk management utility.
  - I prepared a Ubuntu 13.04 (64 bit) ISO to boot with a USB.
  - Disabled Fast Boot. When I tried to install Ubuntu in UEFI mode, Secure Boot didn't allow, then I also disabled Secure Boot.
  - Everything went fine and installation started. I continued in the normal way till the partition point.
  - I created an EFI partition, "swap", "root" and "home" partitions and set the bootloader to be installed on the EFI partition. I don't want to use Ubuntu's GRUB loader, so I didn't install GRUB on dev/sda, but on dev/sda5 as the Ubuntu EFI partition was there.
  - Installation finished, and I opened Windows 8. Using EasyBCD, I created a new boot entry and rebooted to see if it would load Ubuntu.
  - When I choose Ubuntu entry, I get this error:

  File :\NST\AutoNeoGrub0.mbr
  Status: 0xc000007b

  If I try starting Ubuntu from UEFI (by pressing Esc while the computer
  boots), I'm able to boot into Ubuntu. However, as I stated it doesn't
  work in Windows 8's boot menu.

  The problem related to Windows 8's boot menu not starting is another
  issue, but the real problem is that Ubuntu cannot be installed in this
  computer without disabling Secure Boot.

  Regards,
  Şâkir Aşçı

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: shim (not installed)
  ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
  Uname: Linux 3.8.0-19-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8
  Architecture: amd64
  Date: Mon Jul 15 06:37:37 2013
  InstallationDate: Installed on 2013-07-15 (0 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=tr_TR.UTF-8
   SHELL=/bin/bash
  SourcePackage: shim
  UpgradeStatus: No upgrade log present (probably fresh install)

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