Ubuntu installation issue: Failed to create a file system - SCSI3 failed

Today when I was trying to install ubuntu 12.04 along with windows 7, I was encountering an weird issue again and again which ruined my night. So, I want to share it with you all. The issue was occurring while installer was partitioning the free space.

The error message was saying:

"The ext4 file system creation in partition #6 of SCSI3 (0,0,0)(sda) failed. I click "OK" and the installation stops"

I have fixed this issue by partitioning the free space by my own.

Steps to resolve the issue:

  1. Boot on ubuntu installtion CD/USB stick
  2. Choose "Try without install"
  3. Start terminal
  4. Run "sudo apt-get install gparted" command
  5. Now fire another command to start 'GParted' i.e. "sudo gparted"
  6. Make a 2GB swap partition
  7. With remaining disk, make an ext4fs partition.
  8. Now double click on the icon "install ubuntu 12.04" from your desktop.
  9. It will start ubuntu installer and this time it will not give you file system error.

The above steps resolved my problem.


  1. faild to create ext4 when installing ubuntu 15.04

    1. Hey Subhakanta, Please provide error details. Also, I would recommend you to add complete details of issue with error message on http://www.stackoverflow.com so that I can help you better. Afterwards, we can add URL of the SO question there in comments for further reference.

  2. Is there any way to install any OS onto a OS-less hard disk which has bad sectors?

    1. At the outset, you should try to identify and fix bad sectors on the hard disk. There is a free software which will help you to fix the HD and install the OS. It's "Killdisk". You can download and write it onto a CD.

      Here is the link to download the "killdisk": http://www.killdisk.com/downloadfree.htm

  3. I do the same but getting error libparted error input/output error during read on /dev/sda

  4. I am stuck anybody pls help in this case


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