Yesterday, after having resized and moved some of my partitions I have successfully enlarged my Ubuntu partition but in the morning I wanted to launch the computer and ... one thing I get is the "blinking beacon".

I have tried booting into Ubuntu 12.04 USB and it worked, the disk is working - I can access it's files but I cannot boot into it.

I have tried using boot-repair but with the automated option I get no luck.

This is the link to it's log http://paste.ubuntu.com/1155008/

Can anyone help me on this ?

I have been thinking on creating separate /boot partition in the beginning of the disk but I have some other Windows related partitions there (e.g. recovery partition) and this might be problematic.

EDIT After clicking Restore MBR in boot-repair I can boot but only to windows:/

Another boot-repair log


I have plugged in a USB stick in and installed my GRUB on it, then I was able to boot my Ubuntu (from hard drive) with GRUB from USB stick.

Now, since I already have access to my system - how can I repair/restore GRUB from here ? (or maybe even from anywhere else ) ?


From your booted Ubuntu install, run sudo grub-install /dev/sda.

While it's possible that you also have a buggy BIOS and need a separate /boot partition that is not what is causing the problem here (if that were the problem, you would still get a grub rescue shell rather than just a blinking cursor) and therefore I would recommend not creating a separate /boot partition (at least until you find that you really do have a buggy BIOS which can't properly handle large disks).


These are 2 more boot recover options: http://www.supergrubdisk.org


As indicated by Boot-Repair in its final window:

The boot files of [Ubuntu 12.04.1 LTS] are far from the start of the disk.
Your BIOS may not detect them. You may want to retry after creating a /boot
partition (EXT4, >200MB, start of the disk). This can be performed via tools
such as gParted. Then select this partition via the [Separate /boot partition:]
option of [Boot Repair]. (https://help.ubuntu.com/community/BootPartition)

If I were you, I would:

  1. backup documents on an external drive (or DVDs)
  2. via Gparted (included in Ubuntu CD) format the sda1 partition (labelled PQSERVICE) into EXT4.
  3. launch Boot-Repair, click Advanced options, go to the GRUB location tab, tick the Separate /boot partition: sda1 option, click Apply. Write the new URL on a paper (indicate it if any problem).
  • This is the option that I wanted to avoid :/ Will the option with separate partition appear when I create a new one/format existing into ext4 (3) ? Because now I cannot see this option in the boot-repair – Patryk Aug 20 '12 at 11:04
  • I think so. Boot-Repair doesn't propose separate /boot in NTFS. – LovinBuntu Aug 20 '12 at 21:37
  • Ok I have found that option when plugged a USB stick in. Please check my update. – Patryk Aug 20 '12 at 21:54

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