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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UEFI does not list old MBR installed windows 10 in boot options

this is the situation: I had an old PC running on bios and only MBR, I had bought a SSD for it and migrated the updated windows 10 to it and it was working fine. So I decided to build a new PC but to ...
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Possible to boot OS originally installed MBR after converting disk to GPT?

I have Windows 10 and 7 on my hard disk. I installed Windows 10 on a partition on the disk, GPT, converted the disk to MBR, installed Windows 7 on another partition, then converted the disk back to ...
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Disk partitons - extend option greyed out

I have 2 physical disks. One as C: drive, basic type, second, about 700G big disk, contains one 475G ExFat partition, and behind it there is unallocated space about 223GB Yet if i open disk manager ...
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Any way to bypass/restore HDD sector count [duplicate]

I have a WDBU6Y0020BBK external hard disk which recently died for no apparent reason. It was making no strange noises, had no reported SMART issues last time I checked, and wasn't even that old. ...
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Dual boot W7 and W10 second partition not working

Disk type is GPT I have installed Windows 7 then made full backup using Aomei Backupper Then wiped disk and installed Windows 10 and made full backup using Aomei Bacupper. Then wiped disk and restored ...
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mbr2gpt Failed to retrieve geometry for disk -1 error

I wanted to convert MBR disk to GPT in order to install Windows 11 on one of the partitions. When using mbr2gpt /convert command in PowerShell as administrator following message appears: MBR2GPT: ...
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VirtualBox does not boot hybrid GPT/MBR, neither EFI nor MBR

The same version of VirtualBox on the same installed Debian system does not boot from the raw disk USB flash drive, while on the other system it does, it is also possible to boot the USB flash drive ...
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Slow MDADM Raid 5 reads/write speeds

I set up a Raid 5 array from 4x4TB drives with mdadm. But the writes/reads are quite slow and I want to find out why. It isn't CPU-bound as the CPU usage during I/O operations is only around 10%. I ...
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"Advanced Options" Fails to return "Command Prompt"

Pursuant to converting Windows 10 from BIOS to UEFI. The procedure calls for invoking the Command Prompt under "Advanced options", so as to invoke from the command line" mbr2gpt /...
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How to remove bad sectors from SSD disk, format, create partitions and install win 10

Upgraded my disk to a new SSD but seem to have screwed it by not realising that my Dell desktop Vostro was only a MBR bios and I tried to create a GPT system partition. Now after many and varied ...
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How to create a boot USB flash drive with DOS and GPT/UEFI?

I need to run a DOS application from the flash drive on boot, so I can create a backup image of the main hard disk. I have been doing this procedure for many years so far, but my new laptop is ...
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Unable to convert to GPT to install Windows 10 home

So first I did a factory reset once installing my NVME M.2, and that's when Windows had the first issue of not running. So I tried installing a fresh windows 10. When trying to make a save location ...
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Why am I getting an “Unexpected partition style, expected 0 but found 1” when running mbr2gpt?

I have clear Windows 10 Legacy installation but I want to update to UEFI. I tried to apply mbr2gpt /validate, however it fails and i can see in the log the following error: Unexpected partition style, ...
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How to create gpt partition without the 16MB reserved partition?

Anyway to use diskpart or another program to create gpt partition without it auto creating the MSR partition? This is for a 5tb drive so can't just use MBR. I need a single unformatted raw partition ...
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Kickstart: Configuring RAID1 with /boot & biosboot

I have an unused laptop that I want to use as storage. It has 2 500GB Drives that I would like to get configured in a full RAID1 configuration. I've seen documentation that it is possible to configure ...
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MBR2GPT validation failing

Same issue as:MBR2GPT: Disk layout validation failed for disk 0 I've tried all of the solutions here. This is my diskpart and MBR2GPT log. This is my Disk management window. As you can see, I have ...
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External drive (GPT) crashes file explorer in Windows 10

I was trying to to save data on my external drive which I used a few weeks ago normally (1Tb, NTFS, GPT) but it keeps crashing my file explorer and I am not able to fix it any other way than ...
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Is there a Powershell equivalent to Diskpart's "gpt attributes"?

I need to remake several batch scripts that use diskpart for partitioning in Powershell. One of them "hides" the Windows recovery partition thusly: select disk 0 select partition 4 set id=...
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Unable to reinstall Windows 10 on dual boot with GPT

I had a dual boot system with Manjaro Gnome and Win10. I rarely use windows, therefore I'm not sure when and how it got corrupted, but it used to work in this configuration and then didn't. Repairing/...
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Getting "Bad Disk" and unbootable/readable disk after "Convert MBR Disk to GPT Disk" (Minitool PW)

I was having my MBR disk with my main OS (Windows 10) and many important files on it. My disk is Samsung SSD 860 EVO 500GB Sata with good health. I have run Convert MBR Disk to GPT Disk on it and ...
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MBR2GPT /validate failed [duplicate]

I have an SSD that is currently MBR. I want to convert it to GPT to use UEFI mode instead of BIOS, so I can use windows 11. I did MBR2BPT /validate /disk:0 in windows recovery mode cmd, and it failed. ...
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Grub2 can't load kernel after 2TiB in VM?

The setup I am running a virtual machine with Qemu and libvirt. Both host and guest are Debian 10. The disk of the VM is an LVM volume, roughly 3.7 TiB in size, partitioned with GPT. It is attached ...
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MBR2GPT failing with "Cannot find OS partition(s) for disk 0"

I'm trying to use MBR2GPT to convert an MBR/BIOS disk to GPT/UEFI. I'm getting the error Cannot find OS partition(s) for disk 0. I found this in setupact.log: GetOSDeviceVolume: Cannot get NT path for ...
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Windows Backup failure creating system image

On a UEFI W10 computer Windows Backup fails to create a system image, there's some VSS (Volume Shadow Service) errors logged with detail "the requested system device could not be found". I ...
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Convert from MBR to GPT WITHOUT DATA LOSS and NO WINDOWS

So I was trying to install Windows 10 from a bootable USB and unfortunately without reading the error I have deleted the C partition and I got that error Windows cannot be installed on this disk the ...
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GPT formatted drive in Legacy Boot MBR system not readable

My Windows 8 system only contains MBR partitions. I added a big disk internally and formatted it with GPT (given the MBR Constraints of 2TB) and copied some videos. When I plugged this disk in a ...
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diskpart shows one partition as two different ones

I want to convert my hard disk from MBR to GPT via mbr2gpt, but for it to work, I can have a maximum of three primary partitions and diskpart is labeling the same partition as two separate partitions [...
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change windows partition device number as reported by cygwin stat

I have two partitions with the same device number: $ stat -c "%D" /cygdrive/c ec6d967e $ stat -c "%D" /cygdrive/g ec6d967e I believe this is because G: was restored from an image ...
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Got "No bootable device" after converting disk using mbr2gpt and switching to UEFI

I have a windows 10 laptop, and I wanted to convert my MBR hard disk to GPT so I can switch from Legacy BIOS to UEFI (I made sure that my laptop supports UEFI). I ran mbr2gpt.exe and the conversion ...
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what does it mean "dynamic disks support MBR and GPT"?

I'm confused "Do Dynamic disks have GPT and MBR or not?" while in this page, number 3 in table it says there is no partition in Dynamic disks against basic disks that have GPT and MBR ...
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Deleting system-reserved Partition on second drive in order to convert from MBR to GPT

I want to dual boot Windows and Arch Linux on my machine. So I bought a new SSD, which should only contain the linux installation. However in order to achieve this, I have to convert from Legacy Bios ...
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MBR/GPT confusion over dual booting Windows 10 Pro and Windows 10 Pro

I would like to install Windows 10 Pro twice on the same machine to have one partition for everyday use and the other for gaming (with the so-called bloatware). According to the this link, I have to ...
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How do I dual boot windows 7 on a laptop with windows 10 OS and GPT partition?

I have Lenovo Ideapad Gaming 3 laptop with preinstalled windows 10. The hard disk is of GPT format and supports both UEFI and legacy boot. I want to dual boot windows 7 in a seperate drive on the hard ...
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Ubuntu LVM Partition Became Unallocated after Converting from MBR to GPT

I accidentally deleted (not formatted) my Ununtu LVM partition on Windows today using it's Disk Management software. After a long night, I've managed to boot into Ubuntu again with my data intact. ...
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Can I delete old System Reserved partition after changing mbr to gpt (legacy to Uefi)?

I used a third party software to change form mbr to gpt and it created an new system partition ( I think). It says (EFI System Partition) and the old one is still there labeled System Reserved and it ...
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Windows stopped booting after a restart

Please help me kindly. My PC is really important to me. I upgraded my PC from windows 10 to 11 using the dev channel. Now today I restarted it and it is not booting anymore. The Windows Boot Manager ...
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Boot configuration data missing, no EFI partition, non-GPT disk

My computer stopped being able to boot - was working fine for years until now. I have attempted the normal boot repair, and hit errors. bootrec /fixboot Element not found. I found the BCD file not ...
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A windows 10 Computer suddenly won't boot, an unknown partition (Windows recognizes as bitlocker) and two RAW partition

There's a windows 10 with UEFI boot (which I am not expert) which, from yesterday, is not booting anymore with "an unexpected error has occurred" 0x0000001 black screen; it won't boot, all ...
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MBR2GPT Not Working - Can Not Find OS Partition(s) for Disk 3

I'm trying to convert my system to UEFI to get ready for the Windows 11 release. When trying to use the 'mbr2gpt /validate' command in cmd its telling me "Can Not Find OS Partition(s) for Disk 3&...
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Fix and format USB stick "No media found"

My USB was corrupted when I tried to format it on windows to put a bootable Ubuntu on it. I tried to format it on Windows it failed. I tried on Ubuntu with disk utility but it failed, so I tried with ...
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Making PC Windows 11 ready. Secure boot disabled message

I am making my personal pc Windows 11 ready because I need to get to know it for my work. So I tried the PC Healthy Check from MS, to check if my PC is Windows 11 ready. I get the massage 'PC must ...
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how to clone a storage MBR drive to a GPT drive without affecting the rest?

current situation: i want to clone my D:\2TB HDD to a 10TB one and my E:\1 TB SSD to a 4 TB one. both are for storage, got a truck load of stuff installed and configured as MBR but they need to be GPT ...
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Converting Windows 7 mbr boot disk to GPT boot disk

I want to use my old laptop Win7 Pro that was installed with MBR partitioning. I wnat to use this on my new laptop that only support UEFI boot. I have tried various solutions I've found but they all ...
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U-Boot only boots on some SD Cards

I'm encountering an issue where the RK3399 custom board I'm using won't boot (using U-Boot) from certain SD Cards. I'm currently working with two 16GB cards, a Gigastone one which functions and a ...
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Clone/Mirror Proxmox Drive into Another Proxmox Drive that uses GPT

A Proxmox VM (Xpenology DSM) currently has a 4 TB virtual hard disk that has the wrong partition table msdos. Instead, one with GPT should be used (to be able to resize it larger than 2 TB). How can ...
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8TB Drive Cannot be Formatted into one 8TB partition

I acquired an 8TB 2.5" External HDD USB 3.0. It is a 'noname' brand, so I want to make that clear up front. In any event it comes with four 2TB individual drives showing up in gparted (sdb, sdc, ...
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1 vote
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Add GPT to disk that has bare EXT4 file system without data loss

I have a few big spinning drives that I formatted as EXT4 without adding a GPT first. They work just fine on Linux obviously, but I need to move this drives to a FreeBSD box, and the mount plugin for ...
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Can't install windows 10 on GPT in UEFI mode. What am I missing?

It says We couldn't create a new partition or locate an existing one What am I missing really? I create a bootable usb with rufus with GPT/UEFI target. I boot my system in UEFI after selecting booting ...
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Windows Installation Media does not create all four partitions?

Installing Windows-10 system to new 500G SDD. Windows Installation Media does not create the four basic partitions, nor does it recognize manually created partition layout. For example, my Lenovo came ...
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Why Partition Content Change After installing SP1 on Windows 7?

Computer : HP Pavilion s5227c Desktop / OS: Windows 7 SSD1 : SAMSUNG 860EVO 250GB / SSD2 : SAMSUNG 860EVO 250GB HD1 : Seagate ST4000DM at 4TB, 3815320MB, Partition style: GUID ...
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