Questions tagged [gpt]

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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Converting between GPT and MBR hard drive without losing data

NOTE: I don't know a lot about hard drives so you're going to have to work with me here. My question: Can I change my hard drive from GPT to MBR without losing data on it? NOTE: there isn't an ...
Mahmood Darwish's user avatar
46 votes
1 answer
164k views

Windows detects GPT disk as MBR in EFI boot

This disk is OCZ VERTEX 128GB SSD. It is formatted as GPT from OSX. The disk layout is, /dev/disk1 #: TYPE NAME SIZE IDENTIFIER 0: ...
Sarim's user avatar
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30 votes
2 answers
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Are GPT partitions less likely to get corrupted than MBR-based partitions?

GPT (GUID Partition Table) partitioning has some benefits over MBR (Master Boot Record), including Support for: More partitions (128) Drives larger than 2 TB But are there any other benefits like ...
Clay Nichols's user avatar
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24 votes
2 answers
56k views

What are the differences between MBR vs GPT vs any other partition scheme?

Can anyone tell me what the main differences between i.e. MBR vs GPT or any other partition scheme are? Why would one choose one over the other? I am not an expert but from new release of Mac OS X ...
Safran Ali's user avatar
22 votes
7 answers
54k views

Clone a Windows Installation to a 3TB Hard Drive; MBR to GPT

I have Windows 7 Professional 64-bit installed on my desktop. Unfortunately for me and my wallet my hard drive is failing. I have purchased a 3TB hard drive as a replacement for my current 2TB drive....
DanBlakemore's user avatar
22 votes
2 answers
34k views

Make UEFI, GPT, Bootloader, SSD, USB, Linux and Windows work together

I like to use the latest hardware and the latest software; thus I have a Laptop (Lenovo X220) with UEFI instead of BIOS an SSD instead of an HDD GPT partitioning scheme instead of MBR USB to boot ...
gbag's user avatar
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21 votes
8 answers
115k 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 ...
cyberz's user avatar
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21 votes
7 answers
29k views

Is there any way to boot Windows 7/8 using BIOS on GPT?

I'd like to know if there's a method to get Windows 7 or Windows 8 Developer Preview to install to a GPT disk on my traditional IBM PC BIOS setup. Windows 7, of course, rejects my GPT partition, ...
John Chadwick's user avatar
20 votes
4 answers
163k views

Using GParted to convert GPT to MBR without access to an OS

I wiped my Windows 8 thinking I could install Windows 7 x86 but I can't because the disk is GPT. I need to convert to MBR. I'm trying to use GParted to convert to MBR but it seems GParted can only ...
CppLearner's user avatar
19 votes
5 answers
244k views

Clean install of Windows 7 Pro 64-bit on a UEFI laptop with GPT partition?

I’m currently pulling out hairs about a problem with my wife’s new Samsung Book 9 laptop. it comes preinstalled with Windows 8. She wants Windows 7 Pro. I’ve board a Windows 7 Pro 64-bit for her and ...
Mestika's user avatar
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16 votes
1 answer
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What are all those partition table type in gparted?

I was just curious about what are those available partition table types in gparted useful for. Is there any reason to use them instead of MBR or GPT ? atari aix amiga bsd dvh mac pc98 sun
Nicryc's user avatar
  • 707
15 votes
3 answers
44k views

If my motherboard does not support UEFI BIOS, can I still use GPT for non boot drives?

I have a server whose motherboard does not have UEFI, so that means the OS must be installed on an MBR table. MBR has a limit of 2 TB, so I'm wondering if I can install Windows Server on a boot drive ...
user4757174's user avatar
15 votes
4 answers
27k views

Is it possible to boot Linux from a GPT disk on a BIOS system?

I have an AMI BIOS computer [Asus EB1501P] with a Seagate ST9250315AS 250GB HDD. Is it possible to boot Linux from a GPT disk on such a BIOS system?
SebMa's user avatar
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15 votes
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GParted leaves 1MB unallocated space at end of external HDD, override/alternative?

I only say external HD, I don’t have this issue with internal HDs. I created a GPT table, then made one NTFS volume. It shows 1MB unallocated at end of disk. I know it is a backup of the GPT table, ...
Enigma83's user avatar
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13 votes
1 answer
6k views

What is the GPT header signature for?

According to this Wikipedia article, the second Logical Block Address of a GUID Partition Table (LBA 1) is the primary GPT header. It then states in the section about the header that the first 8 bytes ...
Time4Tea's user avatar
  • 369
13 votes
1 answer
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UEFI with MBR partition table?

I want to convert the current GPT partition table to MBR on my laptop which uses UEFI. Is it safe it use UEFI with MBR partition table? Maybe I am misunderstanding about UEFI/GPT things?
Apu889's user avatar
  • 153
13 votes
1 answer
7k views

Small unallocated space left, when partitioning harddrive. What is is meant for and why can't I use it?

Every so often I encounter a small unallocated space in the partitioning scheme of a hard drive, when I want to create a maximal sized partition, even though I have set the "Free space following" to ...
Senkaku's user avatar
  • 602
13 votes
2 answers
88k views

When UEFI/(Motherboard Firmware), is set to UEFI(not legacy), USB is not detected

When UEFI/(Motherboard Firmware), is set to UEFI(not legacy), USB is not detected When set to legacy, it is detected. It goes without saying that I can't boot from it when the UEFI is in UEFI mode. ...
barlop's user avatar
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12 votes
4 answers
83k views

Clonezilla fails at cloning with mismatched GPT and MBR partition

I got this message: This disk contains mismatched GPT and MBR partition: /dev/sda Clonezilla's FAQ says: You might have installed an OS with GPT partition table, and later overwrite the disk ...
Gabriel's user avatar
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12 votes
2 answers
54k views

How can I format a drive using the GPT format on OS X?

How can I format a drive using the GPT format on OS X? I don't see this option in Disk Tools.
cwd's user avatar
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12 votes
3 answers
92k 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 disk....
TechGuy's user avatar
  • 219
12 votes
3 answers
26k views

Is it possible to have one MBR partition and one GPT partition on the same drive?

I would like to use one hard drive on an older computer that doesn't support UEFI, and have it boot from an MBR partition, while having another GPT partition which would be used to boot another ...
programstinator's user avatar
11 votes
3 answers
21k views

I want to expand a partition on my boot SSD, but there is a Recovery Partition and EFI System Partition in the way. How can I get around this?

Here is a screenshot in Windows Disk Management showing the partition layout on my disk: I wish to expand the Windows partition (C:\ drive, "Boot") into the 16 GB of unallocated space. However, ...
Tom Galvin's user avatar
11 votes
3 answers
24k views

Windows on a hybrid MBR/GPT

I thought I'd finally relegated Windows to life inside a virtual machine, but alas, I came across some games I'd like to play that just won't do in that setup. In the days since Windows last occupied ...
Patches's user avatar
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11 votes
2 answers
16k views

Change GPT partition number

I have a 2TB GPT drive that for some reason is mounted as /dev/sdc2. I would prefer all my data drives to be mounted as /dev/sd*1. If I use sudo parted /dev/sdc print I get: Model: ATA WDC WD20EARS-...
Jens's user avatar
  • 483
10 votes
2 answers
87k views

What is a "UEFI-bootable" USB flash drive and can I boot it on legacy BIOS?

I've learned the difference between UEFI and BIOS, and it seems that BIOS only boots MBR hard drive while UEFI only boots GPT hard drive. And UEFI cannot boot normal USB flash drive so I have to make ...
Perqin's user avatar
  • 263
10 votes
3 answers
24k views

How do I clone a larger disk to a smaller disk using clonezilla?

I have a larger disk Disk A and a smaller disk Disk B. Disk A contains a few partitions but the total size of all the partitions is smaller than the capacity of Disk B. Disk A is a GPT formatted ...
RJ-'s user avatar
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9 votes
2 answers
3k views

Dual Boot between Win 7 and Win 11

I have a notebook from my company that was installed Win 7 MBR + Legacy. I need to install a few programs, but they are not compatible with Win 7 anymore and I can't upgrade or do a clean install ...
Emanuelson 204's user avatar
9 votes
3 answers
17k views

Trying to understand linux support for 4TB hard disk drive on legacy BIOS

I want to add a 4TB hard disk drive for data storage only. My current configuration: Intel Server Board S3210SH (Legacy BIOS, 2009/05/22) Running Arch Linux. Installed in a Crucial 512MX SSD ...
BufferUnderRun's user avatar
9 votes
3 answers
831 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 ...
irrational John's user avatar
9 votes
3 answers
59k 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 "...
Samir's user avatar
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9 votes
1 answer
8k views

Running the same Windows both in KVM and physical

I have kind of an advanced question for you, I would like to install Windows on my hard drive (which is GPT formatted) but I would like to be also able to run it in KVM. To clarify, the same Windows ...
evertheylen's user avatar
9 votes
1 answer
91k views

MBR2GPT: Disk layout validation failed for disk 0 [duplicate]

When trying to convert to GPT, I get this error: PS C:\WINDOWS\system32> mbr2gpt /validate /disk:0 /allowfullos MBR2GPT: Attempting to validate disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: ...
Niko Matikainen's user avatar
8 votes
2 answers
28k views

Cannot convert from MBR to GPT

I want to upgrade my disk from MBR to GPT, and I tried using Windows' MBR2GPT.EXE tool to do the job. I used Windows' DISKPART tool to identify the disk I want to convert. However, this happened: C:\...
J-Cake's user avatar
  • 261
8 votes
1 answer
37k views

Black screen with colored dots when trying to boot from USB using rufus GPT partition on my laptop eMMC

As I mentioned in the title, I'm trying to install Windows 10 on my Dell Inspirion 14 which only has a 32Gb eMMC (no HDD). I have been reading a lot of articles saying that I should run Rufus with ...
ImberNox's user avatar
8 votes
4 answers
50k views

How to do UEFI+GPT with a iso file greater than 4GB

As I understand the only way I can reformat my laptop which is gpt+uefi by default is if I crate a bootable usb that is also gpt+uefi. However the image file that I have is greater than 4GB and RUFUS ...
Gappy Hilmore's user avatar
7 votes
1 answer
36k views

MBR or GPT for external backup drive

I bought an external 1 TB hard drive for backups but I am not sure whether to use MBR or GPT. I am using Linux (x86_64) with MBR/BIOS but my laptop supports GPT/UEFI. I know about the differences ...
Paul Haun's user avatar
  • 127
7 votes
3 answers
22k views

How to change GPT partition type on windows?

The GPT format introduce far more place to metadata. To set a partition type in diskpart, one use : DISKPART> create partition msr or DISKPART> create partition efi or DISKPART> create ...
user2284570's user avatar
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7 votes
2 answers
30k views

How to mark a GPT Partition bootable under Linux

How to boot from a GPT Partition? Is it like the MBR way that needs a partition that has the bootable flag on? How to mark a GPT Partition bootable under Linux?
xpt's user avatar
  • 8,651
7 votes
3 answers
7k views

Tried to use my 3TB drive in a USB enclosure, now reports only 746GB even internally [duplicate]

I have two 3TB Hitachi 5k3000 Desktar drives that I want to use as data drives, not boot drives. When I was originally trying to install them I wanted to mirror them using my hardware raid but I ...
JaredMcAteer's user avatar
7 votes
2 answers
9k views

GParted errors on MBR Disk, Claims it's GPT. (It's mistaken, but why?)

It's very tempting for me to go on a rant here about GParted and Linux, but I'll do my best to avoid it. :) Question: Why does GParted claim that my disk is corrupted and GPT, whereas the Disk Utility ...
user541686's user avatar
  • 23.9k
7 votes
1 answer
5k views

Layouting a disk image and copying files into it

Before asking here, I tried to search on SU/SE and Google without success. This is the closest thing I got. Basically, I'm trying to do the following: - create a disk image of about 128MB; - create ...
user avatar
7 votes
3 answers
15k views

OS X 10.6 Snow Leopard no longer mounting an external USB drive

I have a 1TB generic external hard drive containing a single HFS partition. I originally formatted this using Disk Utility and it worked fine. Now, for some reason, it's not auto-mounting when I start ...
Brant Bobby's user avatar
  • 2,516
7 votes
3 answers
9k 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 ...
depau's user avatar
  • 173
7 votes
3 answers
2k views

Can only see 1.6 tb with an 4 x 4tb raid 0

Im trying to have window see my raid 0 array. Please also note that I did research on google before coming on here. Ok so i just bought a z87-deluxe Dual and trying to set 4 x 4tb drive in a raid 0 ...
Nicolas Racine's user avatar
7 votes
3 answers
4k views

Win8x64, after format/upgrade from Win7x86, "GPT Protective Partition" on secondary drive

I backed up all important data prior to formatting the C: drive, but I cannot read the backup drive after reinstalling Windows. More details provided after the screenshots. Additionally As you can ...
Giffyguy's user avatar
  • 1,032
7 votes
2 answers
14k views

2TB external drive, disk initialization: MBR or GPT

I just bought a new 2TB disk drive I plan to use as an external drive (connected via eSATA). When I started my computer it recognized the drive fine, but when I got into the Disk Management, a popup ...
poke's user avatar
  • 659
6 votes
5 answers
8k views

Why does Windows 10 fail to install on UEFI/GPT laptop?

I'm trying to install windows 10 on a new 1TB SSD I got. fresh install, new drive, new laptop. Dell Inspiron 13 5000. Setup for UEFI. Created a bootable USB using rufus (GPT for UEFI (non CSM)). I get ...
DustinDavis's user avatar
6 votes
5 answers
7k views

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 ...
mk12's user avatar
  • 3,192
6 votes
3 answers
13k views

How can I migrate a Windows 10 from BIOS/MBR boot to UEFI/GPT without reinstalling?

I've installed Windows 10 in BIOS mode and use MBR. How can I convert it to use UEFI and GPT without reinstalling Windows 10? Is this possible?
magicandre1981's user avatar

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