Ubuntu installs but no GRUB

[razzmataz1478]

Hi

I have already installed ubuntu before onto my laptop and everything was fine.

Today I got a new PC, an Advent DT1411, and have gone through the process of installing this to dual-boot with Windows 7.

Installation went fine, and after was prompted to restart, so obviously I did.

But...

my PC booted straight into windows, no sign of GRUB whatsoever.

Can anyone help me get GRUB please, or is there a way where my flash drive could trigger the boot into the ubuntu partiton?

Thanks

Ryan

Just for the record, I installed Ubuntu from a USB drive.

[Version Dependency]

You'll need to use a live CD and then run the boot repair tool: https://help.ubuntu.com/community/Boot-Repair


From there, you can install GRUB to any partition.

[razzmataz1478]

You'll need to use a live CD and then run the boot repair tool: https://help.ubuntu.com/community/Boot-Repair


From there, you can install GRUB to any partition.


I have tried this, but when adding the repo I just get stuck on the cursor.

I also tried the live-cd (using a cd) but couldn't get an internet connection.

Anything else I can try?

[dino99]

is that new pc using a bios or uefi ?

https://help.ubuntu.com/community/UEFIBooting

[razzmataz1478]

is that new pc using a bios or uefi ?

https://help.ubuntu.com/community/UEFIBooting

I'll have a look, thanks!

[Version Dependency]

I have tried this, but when adding the repo I just get stuck on the cursor.

I also tried the live-cd (using a cd) but couldn't get an internet connection.

Anything else I can try?

You could download an ISO of a live CD with the boot repair tool already on the disc: http://sourceforge.net/projects/boot-repair-cd/files/

[drs305]

Have you tried booting with the USB device you installed Ubuntu from still attached? It's possible GRUB's boot information was installed on the external device, even though it would point to the internal drive's Ubuntu files.

If the USB device isn't available, BIOS would try booting sda's MBR information, which might still point to Windows.

[razzmataz1478]

I'll have a look, thanks!

In the BIOS(?) I did find some references to UEFI so I think this may be the problem...

[razzmataz1478]

You could download an ISO of a live CD with the boot repair tool already on the disc: http://sourceforge.net/projects/boot-repair-cd/files/

This is what I meant when I said 'live-cd'

[razzmataz1478]

Have you tried booting with the USB device you installed Ubuntu from still attached? It's possible GRUB's boot information was installed on the external device, even though it would point to the internal drive's Ubuntu files.

If the USB device isn't available, BIOS would try booting sda's MBR information, which might still point to Windows.

Booting from USB brings up the installation GRUB

Try Ubuntu without installing
Install Ubuntu
(That other option that I can't remember!)

[razzmataz1478]

is that new pc using a bios or uefi ?

https://help.ubuntu.com/community/UEFIBooting

Sigh. Is there not an easier way of booting using UEFI? Building GRUB etc. I just don't know if I can be bothered to do that.

[drs305]

Are you using UEFI/EFI booting?

I'm not knowledgeable enough about EFI booting to provide instructions. If you are using a normal BIOS/MBR boot you could boot the LiveCD and then install GRUB to the sda MBR.

However, without an Internet connection, I'm not sure I'd recommend it at this point since you will lose your Windows bootloader in the process. With an Internet connection you could restore the Windows bootloader easily via the LiveCD, but without it you would be stuck with no OS if GRUB still didn't work. :-(

[razzmataz1478]

Are you using UEFI/EFI booting?

I'm not knowledgeable enough about EFI booting to provide instructions. If you are using a normal BIOS/MBR boot you could boot the LiveCD and then install GRUB to the sda MBR.

However, without an Internet connection, I'm not sure I'd recommend it at this point since you will lose your Windows bootloader in the process. With an Internet connection you could restore the Windows bootloader easily via the LiveCD, but without it you would be stuck with no OS if GRUB still didn't work. :-(

I think that I'm using UEFI anyway....

Just found this: http://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface#Secure_Boot

Do you think it's worth giving it another shot if I turn off secure boot?

[YannBuntu]

Hello

Boot-Repair-Disk is based on Debian stable, so it may difficult to connect internet because of its old drivers.

Instead, you can use Ubuntu-Secure-Remix, which an Ubuntu 12.04 with pre-installed Boot-Repair.

See https://help.ubuntu.com/community/UbuntuSecureRemix