[Bug 908109] Re: [Oneiric Precise] 64-bit installer incorrectly detects EFI instead of MBR for Grub, boot fails, Lenovo B570

[Brian Visel]

**UPDATE FOR INSTRUCTIONS IN POST #6:
There were some mistakes in the list I posted above, but unfortunately, I cannot edit my post.

For instructions on fixing the problem, see:
https://help.ubuntu.com/community/forum/hardware/LenovoB570


** Description changed:

+ There is a wiki article to describe and help fix this issue here:
+ https://help.ubuntu.com/community/forum/hardware/LenovoB570
+ 
  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.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to ubiquity in Ubuntu.
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:
  There is a wiki article to describe and help fix this issue here:
  https://help.ubuntu.com/community/forum/hardware/LenovoB570

  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.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/908109/+subscriptions