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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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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47 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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414 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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I Initialized my HDD to MBR? Can I recover the data ? (Note.. I just intialized, nothing else.) [duplicate]

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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136 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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3answers
327 views

linux splits one 3 TB external USB HDD into 2 physical drives?

I recently bought a 3 TB harddisk which I inserted into a external USB drive enclosure and connected it to linux debian. Unfortunately it now shows up 2 separate physical drives: one with 2.19TB and ...
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1answer
451 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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511 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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2k 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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179 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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Windows 8 Pro 64 bit GPT Protective Partition after restart

Note: I thought I had one problem regarding this topic, but that has since evolved. Below is the pared down version. After some problems, restarts, and a complete reinstall of Windows 8, my WD 3TB ...
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41 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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2answers
2k 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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57 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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3answers
4k views

Accessing 3TB Seagate Barracuda XT on different computer?

I have a 3000 GB Seagate Barracuda XT sata drive. It originally came in an external enclosure with a removable USB 3.0 interface as part of the Seagate GoFlex series of drives. When using this ...
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1answer
800 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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449 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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4k 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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533 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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3k 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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4answers
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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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548 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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245 views

Default Mac 500GB partitions

I am trying repair hosed partitions on a Macbook. It has a 500 GB drive and as far as I know, it was a standard install with no Bootcamp. I ran testdisk and it found: EFI System 40 409639 Mac HFS ...
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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
2k 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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415 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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517 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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39 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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1k 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
2k 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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what is difference between gpt partition and mbr partition and where structure differs?

Where GPT table using and MBR partition table using. Windows 8 installing and booting in UEFI mode so it is supporting GPT partition style so we can create 128 primary partitions using windows8? can ...
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1answer
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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
452 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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1answer
4k 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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483 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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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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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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2answers
9k views

Recover NTFS partition GPT with TestDisk, gdisk, EasyRecovery

I have broken my hdd file struture. I will not go into details how that happened. I had several NTFS partitions which have some data I need, and it was in GPT. I tried several applications for ...
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4answers
13k views

Live resize of a GPT partition on Linux

On Linux I used to resize MBR partitions using fdisk, even on live filesystems, and then issue a resize2fs/pvresize/... (depending on fs type) to get the new space allocated. Lately I've been using ...
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304 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
200 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 ...
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1answer
394 views

Removable disk, hybrid GPT/MBR

I'm trying to set up a USB HD with GPT so that partition 1 is accessible under all versions of Windows. Sounds easy, right? (In particular, I'm not trying to boot Windows. I just want to plug in a ...
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1answer
6k views

Installing Windows 7 on GPT

I have an HP 566 with Windows 8 installed. I removed it, and I wanted to install Windows 7. I have problems installing Windows 7. In BIOS I can choose two boot modes: Legacy boot mode UEFI boot ...
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744 views

Seeking (somewhat) better explanations about supporting >2 TB hard drives

Today while Googling about I stumbled across posts claiming that Seagate plans to ship a 3TB drive sometime later in 2010. Unfortunately, the stuff I looked at all seemed to contain tidbits of info ...
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Intel Mac can't have more than 4 partitions?

I've read everywhere that you can't have more than 4 partitions because of GPT on intel Macs. But what happens if you make more than 4? On my iMac I have EFI, Macintosh HD, Windows, Linux, and Linux ...
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Out of Band Disk Partitioning and Tables [closed]

Our current methods of disk partitioning involve storing the partition layout on the disk itself, right along with the data. It's easy to screw up the data in a disk : just wipe out the partition ...
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86 views

When partitioning devices for zfsonlinux, what is the correct “Partition type GUID” to use, or is this important at all?

I want to use zfsonlinux on a Debian system. Since I have advanced format drives and will employ LUKS, I have to partition the device by hand. A forum entry at archlinux.org points out that the ...
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3answers
1k 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
4k views

Installing Windows 7/8 64-bit on GPT partition table without UEFI [duplicate]

I'll start by saying I tried everything I found. And still nothing worked. Preface I've converted my old MBR to GPT partition table. I actually thought I'll just have to reinstall GRUB2 and ...
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2answers
18k views

How to install Windows on GPT disk without UEFI BIOS? [duplicate]

My PC does not support UEFI BIOS, but it has Legacy BIOS. The motherboard is "P5LD2-X1333". I need to install Windows 8 on the 3TB hard drive with GPT scheme, since as we know, the MBR scheme does ...