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Until now I had 2 NTFS partitions on my harddrive. Now I wanted to install Ubuntu 12.04, so i freed 100GB from the end of my harddrive, created a new ext4 partition, and installed Ubuntu 12.04 on it.

That's how my partitions table look:

/dev/sda1 - 98.81GB NTFS
/dev/sda5 - 732.71GB NTFS
/dev/sda6 - 100.00GB EXT4

The GRUB has written the data to the harddrive's MBR, however it seems that it can't access the /dev/sda6/ partition. IT boots up to resuce mode, and when I type ls I can only see (hd0) and (hd0,ms-dos).

  1. Is it because the boot files are on an extended partition? If so, how can I make it a primary partition without reformatting my harddrive?
  2. If grub support extended partitions, where am I wrong?

Thanks.

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  • I would recommend repairing grub: howtoubuntu.org/…
    – Lewis Goddard
    Sep 19, 2012 at 19:59
  • grub is installed correctly. I tried doing what is shown on this guide but nothing changed. still booting into resuce mode.
    – iTayb
    Sep 20, 2012 at 19:29
  • Is this still a problem? I can add a bounty if it is.
    – Lewis Goddard
    Sep 25, 2012 at 12:37

1 Answer 1

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It seems that GRUB doesn't support extended partitions.

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  • GRUB does support booting to installations located within extended partitions: many if not most Ubuntu and other GNU/Linux installs using GRUB meet that description, as well as almost every Ubuntu system installed automatically (i.e., without manual partitioning) alongside another OS (such as Windows).
    – Eliah Kagan
    Aug 9, 2014 at 12:21

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