EFI stands for Extensible Firmware Interface, and is an updated version of BIOS. It sits between firmware and the operating system in the software stack.

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Boot Lubuntu on usb by reusing the boot function of an application? (in this case: DiskWarrior)

I have tried a lot of different stuff to get Lubuntu installed on my Macbook 1,1 (first Intel macbook). I just won't get a usb to boot. For the sake of comparison, it does work on my new Mac Mini ...
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1answer
7k views

How do the 'EFI system partition' and UEFI *.efi files relate?

I read that there needs to be an EFI system partition. The EFI System partition is a partition on a data storage device that is used by machines that adhere to the Extensible Firmware ...
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2answers
3k views

Hiren's Boot CD with UEFI support?

I am a long term user of Hiren's Boot CD, but the CD does not support booting on UEFI/EFI/SecureBoot hardware, is there some kind of update/patch to apply to the cd image to be able to boot without ...
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4answers
12k views

How do I mount the EFI partition on Windows 8.1 so that it is readable and writeable?

Here is what I do: restart machine with Windows 8.1 determine "EFI System" parition with the Disk Management utility run command prompt as administrator type diskpart type select disk 0 then select ...
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1answer
2k views

What is the correct way to install linux on a Macbook Pro

I've had a lot of trouble doing this. It always is unable to boot after installation (I get the famous question-mark in a folder thing). I've installed http://www.rodsbooks.com/refind/ however after ...
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1answer
2k views

Fedora 19 (you have not created a bootloader stage 1 target device)

I want to install fedora 19 to my HDD but I get errors: you have not created a bootloader stage 1 target device sda6 must have one of the following disklabel types: GPT. I tried: Create 1-2 mb ...
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Multi-boot encrypted operating systems on EFI

I'm getting ready to "redo" my desktop computer, encrypting all of my partitions as I install the operating systems. I currently boot with EFI. I'm looking to install both Ubuntu 12.04 (really ...
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1answer
2k views

How to edit the Boot Graphics Resource Table / Edit windows 8 BOOT LOGO?

I want to edit the screen which is displayed when windows 8 (starts) loads (/loading). As for now it has the Toshiba logo, I want my custom logo or the windows default logo. I have found that UEFI ...
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77 views

Cannot boot on windows 8 after installing Scientific Linux 6.5

I had a standard toshiba latop (2014 model with EFI), which came pre-installeed with windows 8.1 and I tried to install Scientific Linux(SL) 6.5 in dual boot mode. Originally, I couldn't install it as ...
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1answer
91 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 ...
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30 views

Install Windows 8 on different partition than EFI

I've the following partitions: I want to install Windows 8 on /dev/sdb3, but how can I make sure that Windows will use the EFI partition on /dev/sda1? I'm afraid that Windows will create its own ...
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1answer
35 views

Can't install Windows on GPT device

I have a bit of a conundrum here. My windows installation doesn't boot with EFI, so the only way to boot from it is to turn off efi boot on my BIOS settings. Then I can boot into the disk, but my ...
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1answer
201 views

Use shim with UEFI Fedora 20

How do I use shim with Fedora 20? I have the KDE version, if you need to know that. Running kernel 3.11, with secure boot enabled. At boot, this message is shown: EFI: Problem loading in-kernel ...
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0answers
38 views

Is it possible to bypass the 5-second delay in EFI shell?

Due to my unusual hardware configuration, i am forced to set two PCI registers using the mm EFI command before being able to boot Windows. Right now i have a build of the EFI shell (my mobo does not ...
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1answer
557 views

Is the EFI partition and GPT necessary with less than 2 TiB?

I have a 1 TB external USB hard drive that is GUID partitioned with a 100MB FAT32 EFI partition. The thing is that its a 1 terabyte drive. From what I'm aware, the limit is at 2 tebibytes (TiB). ...
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24 views

No boot entry in msconif boot tab

I bought a new lenovo laptop with a micro-ssd slot. I bought a ssd disk from amazon. I installed windows 8.1 on the ssd and used the regular disk as data storage. The computer runs fine. However I ...
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1answer
181 views

UEFI - Linux Mint Boot from USB Doesn't work

I'm running Linux Mint (only OS other than in VirtualBox) and wanting to remove it. I've created a Live USB of Windows 8 using Windows 7 USB/DVD Download Tool - Yes, I know it says Windows 7 but I've ...
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1answer
2k views

What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?

This is more or less a continuation of What hardware device eats up 1.4GB of my 4GB RAM? While I have more or less accepted the solution there that for some mysterious reason, after a BIOS upgrade ...
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1answer
192 views

How can I reset my BIOS password on my Acer W3 810 Tablet

I set a BIOS password on my Acer W3 810 Tablet and then forgot the password. How can I reset my BIOS password?
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4answers
2k views

EFI GPT Windows 7 boot-loader/manager issue and grub

My computer(asus N76VM 64 bit) with windows 7 (64 bit home professional) pre-installed got in a bad state while partitioning from a later installed Ubuntu environment. This had lead me to run testdisk ...
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2answers
1k views

Update MAC EFI to EFI 2.x

I've been doing a lot of research about installing Windows on Mac - without having a MBR and such. I'm trying to create a pure GPT/EFI system without MBR. Currently, Mac Bootcamp creates a hybrid ...
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194 views

Are there any rescue CD's which are bootable on UEFI and or UEFI with Secure Boot enabled?

I'm looking for Rescue CD's like Hiren's Boot CD which allow me to boot without switching to BIOS or turning off Secure Boot. I had no luck finding such thing. Is it even possible to launch such an ...
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1answer
236 views

Deleted EFI partition Windows 8

I dual boot windows 7 and 8 and I accidently converted my windows 8 disk to dynamic while I was in 7. I used AOMEI Dynamic Disk Manager to turn it back to basic, but it removed my EFI partition. Now ...
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1answer
56 views

Repair EFI Bootloader?

I'm aware there are other topics on this subject, but i've tried the fixes to no avail, hence making this post. So I had a 1TB HDD with Windows 8.1 installed along with a partition with a recovery ...
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4answers
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How to fix EFI-boot on my Macbook Pro after Ubuntu install?

The MacBook does not boot. The screen stays blank (black) – not the grey, active screen like normal. To power off, I hold the power button down. After 5 boot attempts the MacBook finally shows the ...
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1answer
20k views

How to upgrade Mac Pro 1.1 from OS X 10.6.8 to OS X 10.9 Mavericks?

Upgrading the Mac Pro 1.1 2006 in the standard way using the app store is not possible. This is caused by the lack of the 64 bit EFI bios. The hardware of the Mac Pro 1.1 is already complete 64bit ...
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1answer
668 views

kali linux efi boot problems

I have just downloaded Kali Linux and used UNetBootin to install it to a 16GB HP V220W.I Followd the instructions in d kali website and created/EFI/BOOT structre and put d files in it. wrote grub.cfg ...
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1answer
170 views

Install Debian on MacBook Pro Late 2013 with pure EFI

I resized the OSX partition. I installed rEFInd from within OSX. rEFInd works fine. When I try to install debian from the netinstaller, I have the problem, that I cant get up the ethernet interface. ...
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1answer
1k views

Trying to boot Kali Linux from USB on Mid 2010 macbook pro

I created a Kali Linux Live USB (MBR with compatibility for both BIOS+EFI) and created an /EFI/BOOT directory on the USB's root directory, with the file bootx64.efi in it. However, when I tried to ...
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2answers
10k views

Windows 8 EFI boot issue

I've got a simular problem as described in How can I repair the Windows 8 EFI Bootloader?, but with some different details. When I tried to change the bootsequence of my harddisks (of which 1 SSD) in ...
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1answer
77 views

Automount NTFS partition with EFI/GPT

I have a multiboot laptop with EFI and GPTs. One drive is a shared drive formatted with NTFS. I was going to automount it at boot by modifying bits in /etc/fstab. However: # <file system> ...
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235 views

Windows 8 Boot process in EFI

I was trying to add Debian 7 boot entry to Windows boot menu using easyBCD. I accidentally deleted the Window 8 entry from the list now I get a BCD error when trying to boot. Error code 0x000098 How ...
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0answers
96 views

How can I move an Win 8.1 GPT EFI installation to a smaller disk?

which programs do you use to move a whole HDD (GPT EFI Win8.1 installation with the "boot" and "reserved" partition) to a (~10MB) smaller one? I tried "mini tool partition wizard" and "gparted live" ...
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1answer
802 views

Boot ISO from HDD from UEFI?

I have a Windows 8 To Go Entreprise HDD, which boots both on BIOS and UEFI systems (I'm wondering how that's done, because I need that too). Now, I see the HDD I use for that windows is an MBR HDD, ...
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1answer
7k views

How can I repair access to the Windows 8 recovery (maybe EFI issue?)

Notebook is ASUS G55VW (1 ssd, 1 hdd) issue is already described here http://rog.asus.com/forum/showthread.php?28454-G55VW-F9-not-working-after-restore-WIN-8 to sum: 1. I backuped whole system with ...
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3answers
794 views

Boot of Windows 7 from GPT disk on non EFI motherboard [duplicate]

Looks like the answer is no but just to double check... Can I boot Windows 7 SP1 x64 from GPT disk (converted with Windows DISKPART) if my system built on BIOS (non EFI motherboard, ASUS P5WDH ...
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2answers
611 views

Windows 7 GPT to MBR? EFI to BIOS

I want to convert my existing GPT partition table to a MBR one. UEFI is giving me too many headaches with Linux. Actually, I'm just interested in my Windows partition. All the articles on the ...
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5answers
26k views

How to know if my BIOS supports UEFI?

I recently bought a new Dell notebook for my girlfriend and I want to know if the computer comes with a UEFI BIOS, unfortunately I didnt find any information in the manual or on Windows, is there some ...
0
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1answer
422 views

Windows MBR broken after a Windows update

My Windows 7 machine was working fine last night. When I booted it up it installed an update and then I started using it... It hadnt restarted since the install of the update so I didnt notice that ...
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2answers
511 views

Can i delete {fwbootmgr} and system will defualt to {bootmgr}?

{Fwbootmgr} skips {bootmgr} I used bcdboot C:\Windows /l en-gb /s B: /f ALL from bootable usb when ASUS K55A - HI5014L magically corrupted boot information when multiple f1-12 keys were pressed at a ...
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0answers
36 views

Is Firmware Boot Manager critical? Or can it be deleted if you have Windows Boot Manager

I would like to reset {fwbootmgr} because it not linking to {bootmgr} even though in display order Firmware Boot Manager --------------------- identifier {fwbootmgr} displayorder ...
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2answers
227 views

EFI Boot: Two independently bootable physical hard drives?

My computer has two physical hard drives. sdd internal hdd0 hdd internal hdd1 The BIOS (EFI) allows the boot either one. Since I never know when one hdd, especially the ssd, stops working, I ...
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3answers
307 views

Does there exist a native UEFI disk/partition manager?

UEFI has the infrastructure to support complex applications at boot-time. One of the most urgent needs of the hour is a UEFI application for GPT disk management. A lot of partition management cannot ...
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1answer
695 views

Trying to Mount EFI boot partition on Windows 7, getting “parameter is incorrect”

Preamble: I'm in kind of a strange situation here. I recently set up my late-2008 MacBook Pro to dual-boot between Windows 7 and OSX, using rEFInd. However, in the rEFInd menu at startup, I am given ...
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1answer
336 views

Installing windows server 2008 on SSD with GPT and EFI

I recently purchased a new Samsung 840 EVO with a few other components, to rebuild a machine that has been on the verge of extinction. With the SSD purchase, I also purchased a new motherboard from ...
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1answer
1k views

On dual-boot iMac, after fixing “EFI Boot” issue, will booting Windows cause the same issue again?

On my dual-boot iMac, after fixing the well-known "EFI Boot" issue, will booting Windows cause the same issue again? I'm hesitant to try booting Windows until I hear from others. Details: It all ...
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1answer
872 views

Delete EFI Partition

I run diskutil list and have this schema: /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk1 ...
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1answer
2k views

Unable to start Windows - UEFI boot problems with Linux + Win8

I have installed openSUSE (12.2) on a PC that has Win8 installed. At the beginning there were problems and it didn't start, after some "fixes" Linux started but when going in the grub2-efi Windows 8 ...
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2answers
402 views

Chainload EFI Bootloader from grub2 installed on MBR

When trying to chainload a EFI-bootloader from my grub2 I always get an Invalid signature error. According to this question, it happens because my grub2 is installed on an MBR-harddrive. The author of ...
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1answer
145 views

Looking for a comprehensive/“expert” guide to BCD parameters [closed]

I'm having issues with BCD on Windows 8. I can't find any guides at typical "enthusiast" level covering what each option or argument in a BCD /ENUM dump might mean, and the principles governing how ...