OS not detected by Ubuntu during installation!

[Alicia143]

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I have a windows 7 laptop and wanted to install ubuntu alongside windows, but when i try to install ubuntu does not detect my windows. Even Gparted Partition manager shows my HDD as unallocated.
Thanks in advance.

[Kh@LnaYak]

Originally Posted by Alicia143

I have a windows 7 laptop and wanted to install ubuntu alongside windows, but when i try to install ubuntu does not detect my windows. Even Gparted Partition manager shows my HDD as unallocated.
Thanks in advance.

In that case you ca try out the below workarounds.

• Try using a LiveCD and then check out the GParted is appearing and then post a screenshot of the same.
• Run the below command using the and post back what you get.
• Check if the disk is being reported as Basic or Dynamic in the Windows Disk Management utility.

just answer me these things so that i can have a better idea of the issue that you are facing.

[Alicia143]

Even Gparted shows that the Hard Disk as unallocated, and which command are you talking about ?

[Alicia143]

Also, the Disk is reported as Basic in Disk Management

[BahaDurr]

Originally Posted by Alicia143

Even Gparted shows that the Hard Disk as unallocated, and which command are you talking about ?

I think he is talking about the "sudo fdisk -l" command. Better copy and paste the output of the following command.

[john.raj01@yahoo.com]

It's a good possibility that Sony's custom BIOS chip is programmed to look for a certain file on the operating system installation. If it doesn't see that file, it gives you that error. This was a common practice by some manufacturers years ago to force users to use ONLY their Microsoft licensed version of the OS.