[Bug 1066173] Re: whole disk install puts grub in wrong place

[Len Ovens]

On Sat, October 13, 2012 8:11 am, Jean-Baptiste Lallement wrote:
> I did the following test:
> 1. Plugged an external drive on a system with an existing installation of
> Ubuntu
> 2. In partman I selected 'Entire drive'
> 3. On the confirmation page, I selected the external drive (sdc) and
> proceeded with installation
> 4. Proceeded with installation and rebooted
> => Boot ok with external drive plugged
> 5. Unplug external drive and boot
> => Dropped to grub rescue mode

The problem is with removable drives. May of todays systems will boot from
the external drive by default because they have no floppy or cd/dvd drive.
So in my case even with the external drive plugged in it failed to reboot
because the BIOS was looking for a bootable external drive. The only way I
could reboot was to tell the bios to select the internal drive even though
the external drive was plugged in, but that was only good for one boot. I
had to reset the bios at every boot. So in the case of a USB drive Grub
has to go on the external drive to boot correctly at all with a netbook
for example. (both of the ones I have here Acer and HP show the same
thing)

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https://bugs.launchpad.net/bugs/1066173

Title:
  whole disk install puts grub in wrong place

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  For test case "Install (entire disk) in Ubuntu Studio DVD i386 for
  Quantal Final " Oct12.1. When installing onto a second drive
  (removable in this case) The boot information goes on the internal
  drive instead of the install drive. When the second drive is removed
  the internal drive can no longer be booted because grub is looking for
  the external drive.

  One of two things should happen (in my opinion):

  a) grub should be installed on the same drive as the new install.

  b) when choosing drive to install to, a place to select where grub is
  to be installed should be provided.

  and now to go repair grub on my machine...

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