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.

learn more… | top users | synonyms

0
votes
0answers
10 views

Adding a windows partition to an existing Linux GPT/UEFI drive

I have a working Linux system that boots from a GPT/UEFI drive. I would like to add a windows partition to this drive, without destroying the existing boot system in the process. Theoretically, I ...
0
votes
1answer
19 views

Changing Partition scheme

I want to change my partition scheme from MBR to GUID. Is there a way to do this without any data loss. I have Windows 8 installed. Will my OS boot after changing the partition scheme?? Thank you..
1
vote
2answers
36 views

how to mount beyond /dev/sda15 when using a GPT disk with lots of partitions

I have a GPT disk with about 20 partitions. They're on /dev/sda how can I mount each of these at the same time? as I understand /dev/sda is limited at /dev/sda15 this feels weird - being able ...
0
votes
2answers
62 views

Convert disk with OS from GPT to MBR

I'd like to know if it's possible to change disk partitioning standard from MBR to GPT for a disk with OS on which I do that, without loosing the OS. I have windows 7 and want to install side by side ...
2
votes
1answer
26 views

Can a >2TB hard (GPT) drive be used as non-booting data drive on a non-UEFI board?

Our workstation can only boot from MBR max. 2TB hard drive. The BIOS cannot be changed to UEFI mode by firmware update or similar. We are running Win Server 2012 R2. Can we use a 2TB hard drive ...
3
votes
3answers
397 views

3TB drive on BIOS system

I have a HP Proliant microserver gen 8 on which I am planning on installing Debian. I was thinking of setting up a raid-1 configuration through the built in raid controller using two Western Digital ...
1
vote
1answer
401 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 ...
2
votes
3answers
4k 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 ...
0
votes
0answers
34 views

windows 7, UEFI, and GPT woes [duplicate]

This might end up being a bit of a long question, but here it goes. I have a desktop PC that runs windows 7. A couple of years ago, I had my main drive die (C drive). I bought a brand new disk and ...
0
votes
1answer
93 views

Creating GPT partition using sgdisk on emmc 2GB

I am trying to partition my 2GB emmc using sgdisk to have a GPT partion table. The commands show success and also the GPT partition table looks updated (even on reboot) but the partitions are not ...
0
votes
3answers
68 views

Cannot restore Windows Backup Image made in Windows 8.1

I have the following Situation: Laptop is EliteBook 840G1 with 256 GB SSD (Crucial M550). Windows 8.1 with Update has been installed without CSM. I made a Backup using Windows' System Image Backup ...
0
votes
0answers
25 views

How can I create a partition in a the GPT formated drive on OS X, which then results as a GPT partition and not MBR partition?

Looking around on how to install windows 8 or 10 on bootcamp I got the famous error from windows installer telling me I need a drive formatted as GPT an not as MBR. Actually I can't understand why ...
0
votes
1answer
41 views

Can I safely convert my disk to GPT using diskpart with GRUB 2 installed?

I am wondering whether I would be able to convert my disk 0 (with my system partition, Windows partition, and Ubuntu partitions) from an MBR to GPT disk without loss of data and still being able to ...
-1
votes
0answers
61 views

How to recover data after doing DISKPART 'clean'?

I was trying to install windows 10 on my PC using bootable usb, when I came across this problem that I needed to convert the disk to GPT to install windows 10. So I searched online and came across a ...
0
votes
1answer
30 views

Can Linux OS Boot off MBR in Native UEFI?

While UEFI & GPT go together, I was wondering if Linux can be instilled and boot off MBR Partition type while in Native UEFI Mode?
0
votes
1answer
32 views

4TB GPT drive is raw

Let me give some background first before I get into the issue. A few days ago my PC died and after an hour of troubleshooting I finally confirmed that it was in fact the SSD, so I ordered a new. This ...
2
votes
4answers
2k views

logical sector size changes depending on whether it is attached via USB or direct SATA

I have a 3TB WD disk (in a My Book Essential external drive.) I used parted under Linux to partition it with a GPT disklabel and loaded it up with data from my laptop through the USB cable. Then I ...
0
votes
0answers
85 views

Debian 8 Installer (partman) doesn't detect Hard Disk Drives on Ultrabook, but all other linux commands (fdisk -l, lsblk…) does detect

I'm installing Debian 8.0.0 and 8.1.0 (both amd64) on a Ultrabook (Dell Inspiron 14z 5423) which has both a SSD and a SATA HDD. During the install, when it asks for partitioning, I choose "manual" ...
8
votes
4answers
45k 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 ...
1
vote
2answers
1k views

Change ZFS disk references to use GPTID instead of GEOM name?

I've built a FreeNAS rig on a sweet little HP ProLiant MicroServer. Storage wise, I've created a 3 disk ZFS pool using RAIDZ1. I started out with 3 small disks, while getting familiar with FreeNAS, ...
-1
votes
1answer
45 views

Command to save and restore partitioning under Linux

I know we can use sfdisk to save and restore partition tables. Save: sfdisk -d /dev/sda > part_table Restore: sfdisk /dev/sda < part_table But is there other command line tools to save ...
0
votes
2answers
46 views

Windows 7 refuses to install on gpt styled partitions in CMS boot mode

recently I had asked a question regarding windows 7 setip booting issues on a Toshiba windows 8 laptop. I was however able to boot into it with the boot mode set to CMS. The issue I faces was that, in ...
0
votes
2answers
101 views

how to install windows 7 with size more than 4 GB using gpt usb and UEFI mode?

I know that, in order to install Windows 7 on my windows 8.1 laptop, I must disable secure boot then use the diskpart command to convert my USB disk to GPT and format it as fat32. I made every thing ...
1
vote
2answers
124 views

Move Windows 8.1 to beginning of disk

I have 1TB hard disk drive where 700GB is reserved for my personal files. Remaining space is for Windows 8.1. Problem is that Windows 8.1 with their 4 partitions is at end of disk, so I can't extend ...
5
votes
2answers
7k 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 ...
0
votes
1answer
197 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: ...
0
votes
0answers
42 views

Can't use Portable Hard Drive formatted under linux with Windows

I hope you can help me, I have this two 2.5" hard drives (250 and 500GB, respectively) that I put inside Acteck USB 2.0 drive cases and formatted them under linux, creating a new GPT partition table ...
1
vote
1answer
219 views

There is no “Convert MBR to GPT” option in EaseUs Partition Master

I want to convert my disk to GPT to install windows 10. I found this solution to convert it: http://www.partition-tool.com/resource/GPT-disk-partition-manager/convert-mbr-disk-to-gpt-disk.htm But in ...
2
votes
0answers
176 views

Windows 8.1 freeze on startup - Dell Inspiron 15 (7537)

I have a huge problem. (Sorry for my english) The day befoe yesterday I had a Dell Update shown up on my taskbar, I approved it, it ran, and after that I could not turn my laptop on. When I try to ...
0
votes
0answers
131 views

How to create Windows 8.1 installation partition

I have a HP Probook 450 G2 where the owner wanted to replace HDD with SSD. I've reinstalled Windows 8.1 on the EFI-GPT and I'm now trying to setup a separate (possibly hidden) partition in Windows 8.1 ...
2
votes
3answers
123 views

Can Windows 8 and 7 be installed on the same UEFI computer?

My system has UEFI, and I want to install both Windows 7 and 8 on a large drive formatted for GPT (I want to also install a few other operating systems, and I need more than 7 partitions). After ...
2
votes
2answers
616 views

How to change active boot partition of Windows 8.1 UEFI?

I've a 64 bit Windows 8.1 on GPT / UEFI and am trying to boot to another OS without a CD-ROM or external harddisk. I've created a fresh partition (Z:) and copied Puppy Linux.iso over to it. However, ...
2
votes
2answers
102 views

Can't see Linux fdisk created GPT disk partitions in Windows 7 (64-bit)

I just added 2 new disks (only for data, no OS booting) and had them set up equally with GPT and equal partitions, to use the partitions as RAID1 in Arch Linux, and the rest of the storage for ...
0
votes
1answer
169 views

Problems making recovery work on Windows 8.1 EFI - recovery partition in raw (data still accessible)

My problem started with a failed migration from HDD to SSD. I created the copy which should work without problems, but the SSD was somewhat incompatible with my setup (drive visible in BIOS, but not ...
3
votes
3answers
178 views

Installing Red Hat based OS on mbr disk

I currently have installed Windows XP and Linux Mint 17 on my laptop. My disk is MBR type because of Windows XP. I have installed linux mint without any problems, but now I am trying to install Red ...
0
votes
0answers
90 views

PC asks to format Veracrypt Volume

I have a Veracrypt encrypted non-system partition on an external hard drive. The hard drive is GPT-based. On my previous MBR-based hard drives, I used Diskpart and the command SET ID=64 to prevent ...
0
votes
2answers
140 views

Bash scripting parted for GPT

Using Bash & Python scripts in Ubuntu 12.04, we are delivering a disk image to customers as a file (generated by dd). Once dd’d to the new disk, we resize the partition to fit the disk. Now that ...
0
votes
1answer
181 views

Clonezilla stopped. Can “sgdisk -z /dev/sdx” destroy all the data on sda?

I need suggestions. I wanted to backup sda2 on which Win7 is installed. I deleted the Recovery Resion. (Probably Testdisk can restore this partition because I haven't done any manipulation on that ...
1
vote
1answer
180 views

MBR and GPT confusion: installing Debian on macbook air

I'm following this question and trying to install Debian on my MacBook. I've lost that account so I couldn't accept that guy's answer (I'm sorry, I'll not loose this one). So, I followed with his ...
2
votes
3answers
238 views

Why can't CDs/DVDs be partitioned?

Nearly everywhere it's written that it's not possible.. But why? Why can't I dump a GPT/MBR partition table in the first sector? Basically dump a disk layout with sector size 2048... Now I'm sure ...
2
votes
2answers
2k views

4k hard drives freebsd gpart and zfs

I have 3 hdd, with the next camcotrol identify. root@cirmos:/root # camcontrol identify ada1 pass2: <WDC WD10EZEX-00RKKA0 80.00A80> ATA-8 SATA 3.x device pass2: 300.000MB/s transfers (SATA 2.x, ...
0
votes
0answers
48 views

4T RAID 0 Partitioning issue

I am building a new workstation 1.2T 10K SAS X 4 for Win 7 Pro SP1 x64 I must use RAID 0 for this workstation. What I would like to have is C = 500G D = rest of spaces So BOIS based system with ...
0
votes
1answer
3k 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 ...
0
votes
1answer
5k 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 ...
0
votes
1answer
119 views

Install Server 2008 to 3TB drive on Vostro 260

It is possible to install Windows Server 2008 R2 on a 3TB GPT hard drive on a Dell Vostro 260? I know that hard drives must be GPT to recognize over 2TB so I formatted it GPT thinking I did ...
0
votes
1answer
51 views

Is there a way to retrieve data from a hard drive that was initialised but where no simple volume was created?

I switched enclosures for my 3.5 inch external hard drive; the drive is a Western Digital. There after the disk showed up in Disk Management but first needed initializing. I used the GPT initializing ...
0
votes
2answers
2k views

Can't install Windows 7 with UEFI off on GPT drive

I need to have a dual boot with Ubuntu and Windows 7 on my notebook with UEFI. I had to turn UEFI off to install and boot Ubuntu. Now I'm trying to install Windows 7, but it says it can't be ...
1
vote
2answers
7k views

How to create hybrid MBR/GPT partition on USB drive?

Can you please tell me how to create a hybrid MBR/GPT partition on the USB drive? I need the MBR for the boot as my BIOS doesn't boot GPT partitions.
2
votes
1answer
883 views

Install Windows 7 after Ubuntu: Cannot install because of GPT partition

I'm trying to install Windows 7 on a NTFS partition after installing Ubuntu 14.04. But it says that I'm using a GPT partition. The solution I found was to erase everything, then install Windows 7 then ...
0
votes
0answers
65 views

Bios doesn't see MBR Hard Disk

I was trying to install steamos as a dual boot but it used to fail because it didn't see windows' free spaces. Someone said convert HDD from GPT to MBR. I did it with gdisk and now my Windows doesn't ...