The efi tag has no wiki summary.
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1answer
33 views
Repairing Boot Camp on a secondary hard drive
I managed to install Windows on a partition of a secondary hard drive with Winclone, but I am unable to boot on it.
Now when i choose windows as startup device i get the "No bootable device --- insert ...
1
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1answer
53 views
What is the EFI shell?
My BIOS offers me the option to launch an EFI shell, but I have no idea what that is. Does it allow me to turn on CPU flags like VT-x or something similar? Why would I want to use it?
0
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1answer
64 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 ...
0
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2answers
122 views
Windows 7 boot fails with EFI/Grub/Ubuntu
My windows doesn't boot. Here is a screencast.
https://plus.google.com/104553781986069868504/posts/ddRjsxuvtUi
Initial situation
For some special cause, I had two concurrent windows 7 installations ...
-3
votes
1answer
88 views
Is the Windows 7 file recover/image backup broken on Windows 8?
I find the following in the backup log after it runs for an hour or more.
Windows Backup failed to get an exclusive lock on EFI system partition (ESP).
Isn't the EFI only used for booting the ...
0
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0answers
34 views
macbook pro bootpartition problems
In my macbook pro early 2011 15" i have installed 2 harddrives.
First harddrive is a 160gb ssd for osx
Second harddrive is a 500 gb harddrive for windows & data partiton (300 GB)
I have created ...
1
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1answer
569 views
Mint Uefi installation
I got few small issues with a Mint installation. I've bought a new laptop (Asus n56vj) with a preinstalled Windows 8 system. And there is the first problem, laptop has uefi mode on. So when I try to ...
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0answers
706 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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0answers
102 views
EFI Dual-boot issue with Windows 7 and xubuntu 12.10
Thank you so much for reading. I'm pretty desperate for an answer at this moment.
So anyways, I recently solved this issue allowing me to install xubuntu 12.10 correctly. This was a problem with the ...
0
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1answer
148 views
EFI partition malware?
I have a 2011 Macbook Pro, running 10.8.2 and was worried that the laptop may have been tampered with while left unattended for a few days while abroad in Asia.
I have mounted my EFI partition using:
...
-1
votes
1answer
123 views
Can't access UEFI after switching from BIOS on Windows 8
I'm currently using an unmodified ASUS K52J laptop running Windows 8 and trying to develop for Windows Phone 8. In order to meet the specifications necessary to successfully run the phone emulator ...
1
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1answer
158 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 ...
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0answers
308 views
BCD error on EFI based system
I was trying to install linux mint and I messed up my windows 8 EFI partition. Now when I try to boot it says
The boot configuration data for your PC is missing or contains errors.
File: ...
0
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0answers
497 views
Windows 8 bootloader fails to start after installing Fedora 17
I installed Windows 8 (which was pre-installed) on my machine. Later, I installed Fedora 17, but the Windows loader must have been damaged. Then, I cannot see the Windows boot, I can only see GRUB.
I ...
0
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0answers
46 views
Boot Windows after deleting Mac osx partition
I removed the Snow Leopard partition and 2 other (linux) partitions from my MacBook, only keeping the Windows 7 part. I also moved and resized the Windows partition to the whole disk. I kept the 200MB ...
1
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1answer
2k 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 ...
3
votes
2answers
779 views
Using VirtualBox with a local Windows 7 installed on the hard drive
I just discovered today that one can create VirtualBox VMDK files that simply reference real partitions on local disks and, needless to say, got pretty excited. "This means I can boot my Windows 7 ...
1
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1answer
380 views
secondary SATA drive in SATA1 vs SATA3 - EFI booting and BIOS problems
I just got a new PC (HP P7-1380T) with Windows 7 preinstalled. The machine is set up for EFI booting without 'secure boot'. I had planned to install my old SATA drive (dual-boot XP and Linux with ...
0
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2answers
240 views
Boot of Windows 7 from GPT disk on non EFI motherboard
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 ...
1
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1answer
419 views
How to install debian wheezy on a i386 computer with efi bios
Is there a way to install debian wheezy on a i386 computer with efi bios using an USB pendrive and the debian iso? What steps should I follow?
I searched the internet and have not found any clear ...
1
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1answer
1k views
Linux EFI Live CD/USB
I was trying to boot from CD on a new HP Pavilion dv6 a few days ago with much frustration due to the Linux distributions I tried not working with EFI.
Additionally, the EFI Bios is Insyde H20, which ...
1
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1answer
270 views
EFI System Partition and unallocated space?
I just got a 3 TB external hard drive (I didn't look closely enough and ended up buying one for Mac but I run Windows 7) and it came with a bunch of software I don't particularly want. I want to ...
1
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1answer
204 views
Is the EFI partition and GPT necessary with less than 2 terabytes?
I have a 1.5 terabyte portable hard drive that is EFI partitioned (GUID Partition Table) and has a 100MB entry with the file system GUID corresponding to an EFI FAT32 file system.
The thing is that ...
5
votes
2answers
2k views
Do I need to re-install windows 8 to enable UEFI?
I know that UEFI provides for much faster boot up speeds, but as of right now it is disabled in my BIOS. Should I enable it and it'll switch over auto-magically?
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1answer
4k views
How to disable efi on ASUS zenbook
I have just purchased an ASUS UX31A-DH51 Zenbook with Windows 8 preinstalled and I want to remove it and install Windows 7. However I can't load Windows 7, it hangs at the beginning of the install ...
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0answers
290 views
How to enable UEFI in Lenovo y570?
How I can enable EFI/UEFI boot in a Lenovo y570 laptop with a InsydeH2O BIOS?
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0answers
804 views
Why does Windows 8 takes longer to boot on EFI enabled system when EFI is not used?
I have a MacBook Pro and I installed Windows 8 on it. Windows 8 took ages to boot up (15 minutes atleast).
Because the MacBook Pro is fast, I thought it must be a hardware problem and tried installing ...
1
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1answer
3k views
Windows 8 EFI issue
I am trying to install windows 8 on laptop with Raid 0 (stripe) as second system and have following error:
Windows can't be installed on drive 0 partition 6 (show details)
Details says:
Windows ...
2
votes
2answers
1k views
Lost Windows 7 boot after EasyBCD with EFI
I've got a Lenovo Y580 with a 64GB SSD and a 1TB HDD setup using GPT and setup to boot from (U?)EFI.
I was trying to get my Linux Mint installation on the Windows boot manager using EasyBCD (I ...
3
votes
1answer
3k views
How to install Windows with no CD drive boot option in BIOS?
I have a new computer which I built from scratch and I am trying to install a copy of Windows Vista on it. I am able to get to the BIOS and change the boot options which are as follows..
-Built-in ...
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0answers
84 views
elilo commandline boot config that includes spaces
I've got an elilo (EFI LILO) config file that includes spaces in the label - like that:
image=/EFI/gentoo/boot/kernel-genkernel-ia64-3.1.6-gentoo
label="Gentoo IA64 3.1.6"
...
2
votes
1answer
401 views
Resize EFI system partition
I have a Windows 8 installation on a 500gb hd with the following partitions;
Recovery 300mb
EFI System Partition (ESP) 100mb
Reserved 128mb
Primary 145gb
Leaving me with free space of 319gb
I'm ...
1
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3answers
1k views
How to boot Windows DVD without UEFI
I searched the web, but didn't find anything.
I formated my single partition (300GB) to mbr partition table (it used gpt before). Now I want to install windows 7 but I can't because:
Windows cannot ...
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0answers
176 views
Why wont my computer boot from the logical raid volume while installing Windows 7
I have new computer I built the motherboard is an ASUS Sabertooth 990FX. The motherboard has UEFI instead of normal BIOS.
The problem I have is when I try to install Windows 7 with my motherboards ...
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0answers
1k views
How does the EFI partition work and can I boot an x86 OS with a bootx64.efi file?
I have a Thinkpad X230 laptop and I want to install Linux Mint Debian Edition along side Windows 7 on my GPT formatted SSD with the BIOS in UEFI mode. The problem is that I don't understand how EFI ...
1
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1answer
540 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 ...
0
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2answers
774 views
Macbook Grub2 EFI Installation
How exactly does grub2 works on Macbooks? Does it install Grub2 on the EFI partition and I can boot using the grub loader just as I do on a BIOS based PC? What is actually the consequences of running ...
5
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2answers
3k views
Tools to modify UEFI Variables in Windows/Linux?
I have a DELL machine that use Phoenix SecureCore Tiano as its UEFI/BIOS
However, it is totally not configurable as its UEFI shell & menus are hidden in BIOS Setup.
I'm wondering if there were ...
1
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1answer
855 views
Removing the EFI partition from external HDD on OS X
After formatting an external hard drive with OS X's diskutil, the disk is automatically split into 2 partitions like so:
Finished partitioning on disk1
/dev/disk1
#: TYPE ...
1
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2answers
496 views
Problems with Windows 7 + Windows Server 2008 R2 multibbot on EFI computer
We have a new computer, and I am a bit confused from its new features I don't know from older hardware. It is a high end PC based on socket 2011. I want to use an SSD disk for operating system, and I ...
2
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1answer
4k views
EFI booting and EFI Boot Partition
I read that there needs to be an EFI system partition.
Wikipedia - http://en.wikipedia.org/wiki/EFI_System_partition
The EFI System partition is a partition on a data storage device that
...
1
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0answers
114 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?
2
votes
1answer
729 views
2.1TB limit on BIOS?
While checking out this 3TB 7200RPM drive as a candidate for my hardware RAID array, I saw the product video and at about 1:40 into the video, the guy says that BIOS can't handle more than 2.1TB of ...
3
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1answer
713 views
What are the .efires files on OS X Lion's Recovery HD?
If you mount the Recovery HD that enables OS X Lion File Vault 2, Safari mode, and certain recovery options, you see several .efires files. What format are those and what do they contain?
0
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1answer
272 views
Are 2011 Apple Macs EFI-ready for Boot Camp?
I would like to know if the most recent Apple Macs have the EFI firmware up to date to boot Windows through Boot Camp.
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0answers
1k views
USB mouse/keyboard not working in Windows 7 Setup DVD?
I've just updated my ASUS Sabertooth P67 BIOS from version 1305 to 1850 and I'm trying to reinstall Windows 7 (x64) but when I boot to the DVD, my USB keyboard and mouse don't work.
They work fine in ...
2
votes
3answers
10k views
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 ...
1
vote
1answer
570 views
What can an end user do with efi or uefi?
Other than greater support for hardware, what advantage or use could an end user (read: NOT an expert) do with an EFI shell or EFI BIOS? I've seen the shell once on my MacBook Pro, but it seemed ...
6
votes
2answers
7k 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 ...
2
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0answers
862 views
Windows 7 + Ubuntu dual boot + conversion to GPT
I have received a new Lenovo T420 laptop with Windows 7.
The disk now contains:
a hidden SYSTEM_DRV boot partition (1.17 gb, 400mb used). I'm guessing this is the EFI partition, the laptop comes ...
