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On a brand new DoS only laptop I installed Ubuntu. I got Unable to create disk partitions so I used a Windows7 installation CD to create disk partitions. I ended up erasing the disk with the Ubuntu and now on booting it goes straight to grub rescue where all disk partitions are unknown filesystem. Neither can I seem to install Windows.

Any chance of completely nuking my system and starting afresh?

Fabby
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Vivek Gopinathan
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  • You need to install some OS on the drive... – psusi Nov 03 '15 at 02:34
  • That's another issue. Windows cannot be installed on any of my disks. – Vivek Gopinathan Nov 03 '15 at 02:35
  • Well, we don't support windows here and you haven't given any information at all to indicate what the actual problem you are having is, so... – psusi Nov 03 '15 at 02:37
  • Here's the problem as detailed: – Vivek Gopinathan Nov 03 '15 at 02:42
  • Installed ubuntu on a dos only system. But wanted to create partitions on 500gb disk. Couldn't unmount it on gparted. So used an old Windows 7 installer cd to create partitions. Here I ended up erasing the data on the unmountable partition. But couldn't install Windows either as my disks are mbr not gpt. When I boot now, it goes straight to grub rescue where none of the listed partitions are recognised. – Vivek Gopinathan Nov 03 '15 at 02:46
  • @VivekGopinathan: If the below answer helped you, don't forget to click the grey ☑ at the left of this text, which means Yes, this answer is valid! ;-) – Fabby Nov 05 '15 at 13:11

1 Answers1

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Before you proceed: If you have an UEFI system, this will nuke UEFI too, but rEFInd is a good replacement...

Are you sure? Really sure??? - Well, then just:

  1. Boot the Ubuntu Installation media.
  2. Choose Try Ubuntu.
  3. Start gparted from the dash.

  4. Go to the correct hdd on the top right corner:

    gparted screen

  5. Click: Device.

  6. Click: Partition table.

  7. If you don't care about Windows, choose gpt, otherwise choose msdos in the screen below:

    enter image description here

  8. Click: Apply on the screen above.

  9. Click the Install Ubuntu icon and follow these instructions here.
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Fabby
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