I've been trying to dual boot Ubuntu 14.04 and Windows 8, on my HP Pavillion g6-2320. The installation got complete the first time, but Windows got booted. I tried installing again, but got errors,

grub-efi amd64-signed failed to install into /target/

grub-install /dev/sda failed

during different combinations of enabling/disabling Secure Boot/ Legacy Mode

I installed reFind Bootloader but still it didn't work. Now I used BootRepair, and I got reFind , with options for Windows and Ubuntu. But after using Windows once, now Windows gets booted by default - no reFind. I can still access reFind from BootOptions but now both its options load Windows 8. I can access Ubuntu by choosing the option from BootOptions. How to display grub/reFind screen on system startup ?

But in all cases where I'm accessing Ubuntu, the option "install release" is present. So is Ubuntu really installed in my system ? Ubuntu with install release option

I'm okay even with a solution requiring a reinstall of Ubuntu if other methods are hard. But do give me any advice on partitioning or Legacy/Secure boot, which would help me install Ubuntu without using bootrepair.



You will have to create a 'boot' partition while installing Ubuntu so that grub may be installed in it. Otherwise, although Ubuntu may be installed, you will not be able to boot into it.

For instructions, refer to this page.

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  • Thanks, but I'm still facing issues. On doing boot-repair after making a boot partition, I was asked to type the following commands sudo chroot "/mnt/boot-sav/sda4" dpkg --configure -a sudo chroot "/mnt/boot-sav/sda4" apt-get install -fy sudo chroot "/mnt/boot-sav/sda4" apt-get purge -y --force-yes grub* shim-signed linux-signed* And then sudo chroot "/mnt/boot-sav/sda4" apt-get install -y --force-yes grub-efi-amd64-signed shim-signed linux-signed-generic But boot-repair gives error messages. Please look into this drive.google.com/… – abhivij Nov 18 '14 at 4:46

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