[Bug 1080058] [NEW] Unable to install on Ubuntu with EFI and GPT, but GPT disk is not the boot disk

[Calabacin]

Public bug reported:

I have a computer with several disks and with Windows 7 64bit installed.
The boot disk is an SSD and the home, tmp, and swap partitions are in a
3TB GPT disk. During install I chose manual partitioning, and created
all partitions, both on the SSD and on the GPT disk.

Install did everything flawlessly, and then several things have happened (tried installing several times):
1.- grub was installed but ubuntu would reboot during the early boot
2.- Reinstalled and managed to boot, but then the next day it would reboot just like in step 1 (I hadn't tried to boot after doing all updates before)
3.- Reinstalled. Now grub would not work. Tried to fix that by booting to the CD and installing grub on almost all disks. It worked, but then Ubuntu would reboot as before
4.- Reinstalled one last time, but now grub does not work. It says it cannot find i386-pc/normal.mod

I cannot exit step 4 now, and my Windows 7 is unbootable. I can access
all disks from my boot-cd, so I can send any file you may need.

When trying to install, sometimes the cd would not boot, and I would fix
that by choosing EFI-cd-boot from the bios. Some other times I did not
choose that but it booted sometimes (maybe kept that boot config).

I have installed lots of Ubuntus and have found almost all posible
problem, but this is new to me and I cannot figure out how to fix it.
I'm thinking it may be related to using a GPT disk, but I'm not sure.

I'm attaching /var/log/installer/syslog found on the installation disk
(/dev/sda1), I am getting this file and sending this report from the
Ubuntu boot cd (no other way to use my computer at this time). If you
want me to install again, and then, without rebooting, get the logs, I
can do that without problem.

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "var_log_installer_syslog.txt"
   https://bugs.launchpad.net/bugs/1080058/+attachment/3436568/+files/var_log_installer_syslog.txt

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https://bugs.launchpad.net/bugs/1080058

Title:
  Unable to install on Ubuntu with EFI and GPT, but GPT disk is not the
  boot disk

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  I have a computer with several disks and with Windows 7 64bit
  installed. The boot disk is an SSD and the home, tmp, and swap
  partitions are in a 3TB GPT disk. During install I chose manual
  partitioning, and created all partitions, both on the SSD and on the
  GPT disk.

  Install did everything flawlessly, and then several things have happened (tried installing several times):
  1.- grub was installed but ubuntu would reboot during the early boot
  2.- Reinstalled and managed to boot, but then the next day it would reboot just like in step 1 (I hadn't tried to boot after doing all updates before)
  3.- Reinstalled. Now grub would not work. Tried to fix that by booting to the CD and installing grub on almost all disks. It worked, but then Ubuntu would reboot as before
  4.- Reinstalled one last time, but now grub does not work. It says it cannot find i386-pc/normal.mod

  I cannot exit step 4 now, and my Windows 7 is unbootable. I can access
  all disks from my boot-cd, so I can send any file you may need.

  When trying to install, sometimes the cd would not boot, and I would
  fix that by choosing EFI-cd-boot from the bios. Some other times I did
  not choose that but it booted sometimes (maybe kept that boot config).

  I have installed lots of Ubuntus and have found almost all posible
  problem, but this is new to me and I cannot figure out how to fix it.
  I'm thinking it may be related to using a GPT disk, but I'm not sure.

  I'm attaching /var/log/installer/syslog found on the installation disk
  (/dev/sda1), I am getting this file and sending this report from the
  Ubuntu boot cd (no other way to use my computer at this time). If you
  want me to install again, and then, without rebooting, get the logs, I
  can do that without problem.

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