[Bug 908109] Re: Oneiric 64-bit installer Grub no HDD boot Lenovo B570

[Brian Visel]

During the installation process, Ubuntu installs the EFI bootloader
instead of the regular PC bootloader.

This results in a system that is broken in one of the following ways, depending on the configuration of your system:
* Boots to windows as if Ubuntu wasn't there (even though it completed installation)
* Fails to boot after completed installation

Workaround:
This should successfully complete the installation process, through a series of manual commands.

* Boot from CD/USB live image
* Connect to the network
* Click on the ubuntu partition you previously installed to, so that it is open in nautilus.
* right-click on this partition in nautilus (it's in the list on the left), and click 'properties'
* copy the name of the mount, and replace "<name of mount>" below with that text.
   It will probably be something like "563451BD58A19D16"
* execute a terminal, and type the following commands.  If any give you an error, stop, and send me a message (don't post here for further support):

cd "/media/<name of mount>"

sudo mount -o bind /proc proc
sudo mount -o bind /sys sys
sudo mount -o bind /dev dev
chroot ./

apt-get update
apt-get install -y grub-pc

exit
sudo umount proc
sudo umount sys
sudo umount dev
sudo sync
sudo shutdown -r now


..at this point, the system should reboot, and give you the choice between Ubuntu and Windows (or just Ubuntu, depending on your install).


** Summary changed:

- Oneiric 64-bit installer Grub no HDD boot Lenovo B570
+ [Oneiric Precise] 64-bit installer incorrectly detects EFI instead of MBR for Grub, boot fails, Lenovo B570

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https://bugs.launchpad.net/bugs/908109

Title:
  [Oneiric Precise] 64-bit installer incorrectly detects EFI instead of
  MBR for Grub, boot fails, Lenovo B570

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  As per the forums, this is a 64-bit laptop, and the 64-bit Live CD
  "Try Ubunut" mode works perfectly on it, but when installed to disk
  the Grub boot loader doesn't work.

  I selected the option to resize the Windows partition and install
  Linux, and it did everything perfectly, but would not boot Linux
  afterwards. The system came up into the Windows 7 black "start in safe
  mode" option screen. If the Active Partition flag for the Windows boot
  partition (/dev/sda1) is turned off, then the system will not boot
  from hard drive at all, and falls through to the next boot option in
  the BIOS, which by default is PXE.

  Also as per the forums, the 32-bit Oneiric installer works fine ... I
  bought the laptop for my 74-year old father for Xmas and he is
  unlikely to care about using all 4GB of RAM, or running 64-bit VMWare
  setups, so I just did the workaround of using the 32-bit installer to
  reformat the Linux / partition (/dev/sda6) and install 32-bit Ubuntu.

  I have included a copy of the partition table, boot block and
  /boot/grub as laid down by the 64-bit installer.

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