[Bug 1049549] Re: Ubiquity manual partitioning offers to install grub in a way that breaks Windows boot

[mue.de]

I had a functioning dual-boot system with ubuntu-12.04.4 LTS and Windows
Vista (which was previous installed).

I wanted to setup a home-Server with that elder fujitsu-siemens Desktop (pae-capable) and had the problem of too less space at the /home-directory at the original 40GB (!!) drive.
I spent a second sata-drive with 160GB and move the home-Folder to a new partition: everthing worked fine.
Then the root-Partition went out of space: so i decided to move the windows-Partition (8GB) at the end of the first harddisk (with gparted, booted from a live-dvd) to get more room for the ubuntu  root-Partition '/'.
I didn't had problems with gparted so far, but now: none of the systems is bootable anymore.
I just see the grub rescue prompt
[code]
Booting
error: no such partition 
grub rescue> 
[/code]
I tried testdisk and ran the boot_info_script, which results can be found at http://paste.ubuntu.com/7923979/
(the /etc/fstab shows at that point some attached usb-drives, that are normally not mounted)

How can i get the system booting again?

Thanks for any advice

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https://bugs.launchpad.net/bugs/1049549

Title:
  Ubiquity manual partitioning offers to install grub in a way that
  breaks Windows boot

Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  The "Something else" option (= manual partitioning screen) allows the user to change the location where GRUB stage1 will be installed.
  ("Device for bootloader installation" combobox).
  AFAIK, the default entry in this combobox is /dev/sda. Currently the combobox also allows to select any partition (eg /dev/sda1 , /dev/sda2...)

  The following entries break Windows boot and MUST be removed:
  - all partitions (eg /dev/sda1 , /dev/sda2...) containing Windows boot files (bootmgr, ntldr). In other words, all partitions detected as "Windows" by os-prober.

  Probably the problem is the same with systems other than Windows, so I
  recommend to remove all partitions detected by os-prober.

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