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I tired to clean install Ubuntu 14.04 on Dell Latitude E6420, using bootable USB made using universal USB installer.

Installation went OK with no errors but when it rebooted it gives No Boot Device Detected. I configured the BIOS to be UEFI and the SATA controller to be AHCI. Then tired the Legacy instead of UEFI and AHCI remains same but with no luck and got same error.

Can you please help?

Actually I wasn't given any options when I created my USB. And No, I didn't have it installed. I brought a new HD and tried to install several time but the same errors.

RolandiXor
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azyaser
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1 Answers1

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Did you read all these articles?

There are really a lot of possible causes for this behavior. Try to do a complete new install of ubuntu while the BIOS is in legacy mode. Setup the SATA controller as AHCI is fine and should left untouched. Ensure that the harddisk has an MBR partition table! Install the grub loader as a MBR (i.e. /dev/sda) and not as an bootrecord (i.e. /dev/sda1).

To ensure that the disk has a MBR parition table you may boot the ubuntu life system and create a new empty partition table on your harddisk with the fdisk or gparted programs.

You may start an ubuntu live system and open a terminal. Gain root access in the terminal shell by typing

sudo -i

Than try to find out the device name of your hard disk, have a look at the output of

ls -al /dev/disk/by-id/

There should be a line ending up in /dev/sda or /dev/sdb where the left part thereon meets your diskname.

Supposed it is /dev/sda, than you start fdisk:

fdisk /dev/sda

In fdisk you can get an overview about available commands by typing m+return.

Create a new MBR partition table with o+return and write it to the disk and leave the fdisk program with w+return.

Thereafter reboot the system and try again an installation of ubuntu on the disk.

Community
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cmks
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  • I installed using Legacy and AHCI but no boot device error came up too. Can you please explain further the MBR route? I am not an expert in Ubuntu – azyaser Mar 14 '16 at 17:41
  • are you able to start a ubuntu live system from a usb stick and start a shell? – cmks Mar 14 '16 at 17:48
  • If you mean trying Ubuntu and starting the terminal then yes. – azyaser Mar 14 '16 at 17:50
  • I edited the post to give you some hints – cmks Mar 14 '16 at 18:08
  • Hello I tried this and it gave an error that this is not GPT but I clicked yes and wen smooth but ended up with same error. I even tried again with Ubuntu 12.04 with UEFI and AHCI and got same error. I don't know why this is happening this should be a straight forward – azyaser Mar 14 '16 at 19:15