0
votes
1answer
70 views

How to log into Windows if I have deleted the EFI partition?

I've run into a problem while experimenting. I deleted my EFI partition while installing Ubuntu. I had Windows 8.1 pre-installed. I installed Ubuntu 14.04 LTS. Ubuntu runs fine. But there are no ...
1
vote
1answer
308 views

Reinstall Ubuntu over Elementary OS IN EFI

First, a bit of background. I managed to dual boot Ubuntu 13.04 with Windows 8(preinstalled). I disabled secure boot. I had to go in the bios settings and change the disk order to select Ubuntu as the ...
2
votes
1answer
954 views

Dual booting Windows 8 and Ubuntu 12.04 with EFI. Got “error: unknown filesystem” and grub rescue prompt

This is a Toshiba Satellite S855-S5381. Windows 8 was already installed and then I installed Ubuntu 12.04 alongside it. During this process I was informed to make sure to turn off Windows fastboot ...
0
votes
1answer
107 views

Which bootloader to use when dual booting a Mac without OSX (Win/Ubuntu)

A while back I used Bootcamp to install Windows 8 on my 2011 27' iMac. Accidentally using the Windows installer I overwrote Windows onto my OSX partition. Now I would like to install Ubuntu on to my ...
1
vote
1answer
508 views

Does the 'mount' command rely on MBR to detect partitions, or can it use the GPT partition table?

TL:DR I have Mac, which means I have EFI and a GPT formatted disk with a hybrid MBR. I am considering adding a fifth partition; to do this, I will mask my first three GPT partitions with one ...
1
vote
1answer
807 views

Can I “dual boot” grub-efi and grub-pc?

I am currently running Ubuntu with grub-efi and rEFIt on a Macbook (8,3). I'd like to have the option to boot Ubuntu in BIOS emulation mode as well. Is this possible? I guess I need grub-pc to write ...
1
vote
0answers
151 views

How to know if the BIOS in my Macbook Pro is running in EFI mode or BIOS emulation mode when in Linux

I totally replaced OSX with Linux. In Ubuntu 10.10, how can I tell which mode the BIOS is running in? Is it better to have it running in EFI mode?
7
votes
2answers
8k views

Windows 7 + Ubuntu dual boot + UEFI BIOS

I received a new Lenovo T420 laptop with Windows 7. The disk now contains: a hidden SYSTEM_DRV boot partition (1.17GB, 400MB used). I'm guessing this is the UEFI partition; the laptop comes with ...