GUID Partition Table (GPT) is a format for partition tables that was designed within the UEFI specification by Intel. It was designed as the successor to the Master Boot Record partition tables.

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how to properly set up grub2 with uefi on gpt

I've recently installed fedora on new ssd disk. Info: GPT, uefi partitions: (lsblk) NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda ...
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31 views

HDD only visible from Linux, GParted says “unallocated partition”

My Western Digital Caviar Green 3TB HDD suddenly is unrecognized by Windows 7. It's an external My Book drive, but plugging it vía USB from his case is unrecognized by Windows 7 or Linux, so I have to ...
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25 views

Caution: invalid backup GPT Header (gdisk)

Each time I boot into my Ubuntu installation, when I open gdisk I am given the messages: GPT fdisk (gdisk) version 0.8.8 Type device filename, or press <Enter> to exit: /dev/sda Caution: ...
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2answers
83 views

3TB Western Digital green showing as only 746GB in disk management?

I've just purchased a new hard drive (3TB Western Digital Green) with the intention of transferring everything from my hard drive that has sector issues and is causing BSODs. The problem is, the new ...
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202 views

Need help upgrading OSX to Mavericks: Fix GPT and MBR after installing rEFIt

A while ago I installed Ubuntu using rEFIt on a MacBook, 2.4GHz C2D, 4GB DDR3. Sorry, I don't know the exact model. Anyway, I continued to get errors when trying to upgrade to Mavericks. Eventually, ...
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80 views

Initializing external 1TB hard disk with MBR option

I have an 1TB WD my passport hard disk(HD). I connected that HD to my laptop this morning and it didn't show in My Computer. After trying for several times, I went to disk management, and as soon as ...
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17 views

Move a LUKS partition to the left and resize it

I have a LUKS encrypted partition that is NOT into an LVM volume manager. It's at the end of the hard drive, and its size is 250 GB, but I want to add 50 more GBs to it. I would normally use GParted ...
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23 views

How to restore GPT backup on Linux?

Today, I've encountered a problem when trying to install Windows7 on my new laptop. The installer claimed that Windows couldn't be installed on a GPT drive, so I tried to turn the partition table into ...
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1answer
59 views

Converted existing win7 instalation from mbr to gpt using gdisk, can't lauch OS

I have existing win7 instalation which I just moved to 3 tb disc via clonezilla (2tb partition). I wish to extend that partition so I can use all 3 tb of disc space. I've read that because it's ...
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34 views

GPT damaged, two half-sized disks instead of one

I'm trying to help my father installing Gentoo instead of Windows on his new Acer Aspire S7 notebook. However, we are experiencing issues to partition the 120GB SSD disk. fdisk -l tells us we have ...
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162 views

GPT Protective Partition

I’ve moved my 3TB hard drive to another USB enclosure, and it no longer works. Disk manager says “2794.52 GB Healthy (GPT Protective Partition)”. How to fix that? I don’t want to reformat, I need ...
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75 views

Can I still use a GPT secondary hard drive if I converted it to MBR

I'm owner of an MSI GT60 laptop with preinstalled Windows 8. The W8 OS is installed on an 128GB SSD (C:) GPT format. There is a secondary 600GB DATA hard drive (D:) GPT format. My goal is to install ...
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35 views

I Initialized my HDD to MBR? Can I recover the data ? (Note.. I just intialized, nothing else.)

I had an HDD in my Laptop. I connected that HDD to some other laptop via USBtoSATA bridge and it dint show in My Computer. After trying for several times, I went to disk management, and as soon as it ...
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22 views

Minimum requirement to boot Ubuntu from GPT partition

My third disk was partitioned as GPT format, and was originally intended only to be used as a storage device, but now I need to boot from it as well. I did put a 200M ext2 boot partition as the first ...
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1answer
445 views

Why can't I install Windows 8 on an UEFI machine from an MBR based USB disk?

Just tried to install Windows 8.1 on an UEFI machine/GPT disk. I used a 2 TB MBR-based USB drive to contain the installer (FAT32 partition with Windows 8.1 install files). I got as far as selecting a ...
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34 views

How can I tell if a Windows 8.1 machine has 'full' UEFI?

I've seen a Windows 8.1 machine that has a MBR format drive and a 'Legacy' BIOS, and it has fancy graphics that look like UEFI. If I have a GPT format drive is it still possible to have the old style ...
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Problems restoring grub

I have used fsarchiver to move the content of my old hard drive on a new bigger SSD. Basically, one partition with Ubuntu 12.04. Everything went fine. But now I can not boot. I used GPT and I also ...
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47 views

Can't install Win 8.1 to my new Dell I5 computer

i just got a new dell I5 computer with on Operating system inside, i tried to install win 8.1 as the manual said but when i got to the Hard drive i got the message "windows cannot be installed on this ...
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59 views

Trying to restore cloned 1TB HDD to 3TD HDD, no other solutions have worked

So one day my 1TB started to fail, losing many sectors every boot. So I cloned the 1TB hard drive to a 1TB external drive. First problem? The target drive is too small. Fixed that by telling it to ...
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2answers
359 views

How to partition hard drive from MBR to GPT for Windows 8.1 UEFI install

I just bought a new HP notebook (ProBook 450 G0) and it came preinstalled with Suse 11 Enterprise. Now this is the first time I've owned a system with an (U)EFI and I don't know how things work on ...
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51 views

Failure to create hibernation partition on GPT SSD boot drive

I've searched a number of forums and am surprised no one seems to have had the same problem as me. I have only one SSD (Samsung EVO) which is also my boot drive (UEFI, z97 board) for my desktop ...
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50 views

These partitions are properly aligned?

Scenario: BIOS computer (Not EFI) HDD with GPT partition table I'm trying to follow these instrutions: https://wiki.archlinux.org/index.php/GRUB#GUID_Partition_Table_.28GPT.29_specific_instructions ...
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28 views

My disk at half size after formatting

I'm a long time linux user, I'm also a Windows user, after formatting my brand new USB dongle I get ~30Gb from the partition table available to create a new partition where the nominal capacity of the ...
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153 views

Is it possible to recover data after disk' gpt to mbr conversion?

I tried to install windows that requires mbr system to a gpt system. I converted gpt to mbr using diskpart utility. After it all my logical disks disappeared and only one (with total amount of space) ...
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45 views

What does this libparted warning message mean?

I have a FAT partition on my disk, and I want to shrink its size. But when I do, I got the following warning. File system doesn't have expected sizes for Windows to like it. Cluster size is 8k ...
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32 views

new windows 8.1 alongside with linux

I have pretty serious problem while installing any linux alongside windows 8.1. While trying to install, linux showing that my disk is empty, despite that i just installed windows a moment ago. Same ...
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1answer
96 views

What are those empty partitions on my UEFI/GPT partitioned disk for?

I'd like to know what's with all those unnamed partitions. I've always thought they are what they say they are (recoveries and what not), why are there so many of them? And why do they all say 100% ...
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1answer
201 views

Cloning Windows 7 installation from MBR to GPT drive and make it bootable

I've seen threads on similar topics - such as this one - but the answers never seem to solve how to make it bootable. I have Win 7 64-bit on a PC installed on a 2tb MBR volume. The motherboard is ...
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135 views

Booting a GPT USB key on older BIOS laptop

I have an old HP EliteBook 8530p, which does not support booting from GPT USB (GPT HDDs are fine though). Lately I had the wish to have a fast-to-start OS for browsing, smaller web tasks, etc., so I ...
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1answer
1k views

cant install windows 7 or 8.1 . The selected disk is of the GPT partition style

I can't install Windows 7 or Windows 8.1 so that I won't lose my data on 2nd disk. Any way to back up the data? or install Windows without formating 2nd disk?
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197 views

Recreate MacBook Pro's overwritten GPT partition table

Already, neither Testdisk not GParted's rescue option have been able to recover the original partitions, so I think I have to recreate them manually. I'm on a late 2011 MacBook Pro with the stock ...
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1answer
3k views

Windows 8.1 installation from USB after deleting Windows Boot Manager in BIOS/UEFI

I removed Windows Boot Manager option from BIOS (UEFI) with EasyUEFI, after reboot I got an error message about broken BCD, need to be recovered, I tried to reinstall Windows 8.1.1 Pro X64 from USB ...
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1answer
226 views

Disk partition order concern for dual booting Windows 8.1 and Windows 7

When dual booting Windows 7 and Windows 8.1 on a UEFI system with GPT Disk, is the order of the partition, on which I install the OSes, of any concern? Previously, after the EFI Sytem Partition and ...
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179 views

How can I add 4TB SATA disk to motherboard without formatting ?

I had a 4TB seagate USB3.0 hard drive with data. I took the case out and got the internal SATA drive from that case. Then I joined it to my Intel D975XBX2 motherboard with SATA cables, but the ...
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2answers
86 views

How to convert MBR with extended partition to GPT?

I have a disk with extended partition, and are all used. Now, I want to convert this disk to GPT. But GPT does not support extended partition. I wonder if it would be possible? Or maybe the extended ...
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1answer
149 views

What are GPT Protective volumes on Windows 8 and can they be recovered?

I have seen a few GPT Protective volumes now with Windows 8.x. These are default configurations where the users are very "un-savvy" and so they did not enable anything as far as additional security ...
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37 views

Data recovery on bitlocker drives? [duplicate]

I have a Windows 8 drive that had the GPT Protective partition converted to MBR in an attempt to read it on another system. The user then did not see the drive yet still and converted it back to GPT. ...
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142 views

Restore automatic bootup of Windows 8 in UEFI

My Acer AMD laptop came bundled with Windows 8.0 in UEFI. The state it's in now is that every boot stops at a prompt, and I have to hit ENTER at this screen to continue: How can I make this ...
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1answer
1k views

creating UEFI USB Boot stick using rufus option gives errors

I am trying to install windows 7 from a USB UEFI stick that I tried to create in vain. I read other posts on creating UEFI USB Boot sticks and found Rufus the most convenient option . However , Rufus ...
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1answer
180 views

UEFI with MBR partition table?

i want to convert current GPT partition table to MBR. But my laptop has UEFI, so is it safe UEFI with MBR partition table? or maybe i am misunderstanding about UEFI/GPT things?
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1answer
4k views

grub2-bios-setup: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible

Grub2 won't install on a hdd with GPT partition label (without --force), complaining about a missing BIOS boot partion - even though there is one. The first partition (1 MB) is supposed to be used as ...
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2answers
186 views

Installing a 3TB drives on Debian

I am using an internal hard drive USB adapter to mount backup drives. The adapter was working well with my previous 1GB backup drives. We just got two new 3TB hard drives. We connected it with the ...
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2answers
4k views

Partitions on GPT disk are not in the recommended order?

I want to install a clean RTM Windows 8.0 on a laptop that came with OEM Windows 8.0 pre-installed. I have a working ISO image on DVD. The problem is that the setup program complains about ...
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1k views

Linux tools that can partition GPT with proper alignment

Proper partition alignment ensures ideal performance during data access. Incorrect partition alignment will cause reduced performance, especially with regard to SSDs (with an internal page size of ...
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121 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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30k views

windows cannot be installed on this disk. The selected disk is of the GPT partition style. Windows 8.1

I have a ASUS R500A notebook.Original OS is Windows 7 64bit.Few days ago I tried to Install Windows 8.1 64 bit version.But it failed & error message is, windows cannot be installed on this ...
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165 views

How can I manually partition and provision a Windows 8 USB install drive with UEFI bios and GPT scheme?

For whatever reason, I cannot get the windows 7 and windows 8 usb install tools to see my usbdrive, even though my bios can. How can I manually (from elevated command prompt) partition and provision ...
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248 views

3TB Hard drive stops reading/locks up after a few minutes of use

This has been driving me a little batty lately as i dont understand enough to fix the problem. My HTPC (Windows 7Pro 32bit) currently has two USB HDD plugged in under separate ports. The 2TB is a ...
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122 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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85 views

How can I edit a file on a GPT partition, SLAX linux

I have installed ESXi v5.5 on a white box and need to insert a particular parameter into the boot.cfg file. I created a bootable USB drive (SLAX Linux) and can see the device /dev/sda, but can't mount ...