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Questions tagged [gpt]

Use this tag for GPT partition tables.

GUID Partition Table (GPT) - partition table standard for physical data storage devices (like hard disks and solid state drives...) that uses globally unique identifiers (GUID). Successor of MBR partition table standard.

253 questions
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GPT or MBR: How do I know?

How can I tell whether my harddrive is laid out using an MBR or GPT format?
goldilocks
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Create partition aligned using parted

I'm partitioning a non-SSD hard disk with parted because I want a GPT partition table. parted /dev/sda mklabel gpt Now, I'm trying to create the partitions correctly aligned so I use the following command to know where the first sector…
Marc
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Remove GPT - Default back to MBR

I keep receiving this error: Warning!! Unsupported GPT (GUID Partition Table) detected. Use GNU Parted I want to go back to the normal MBR. I found some advice here and did: parted /dev/sda mklabel msdos quit But when I get to the mklabel option…
sayth
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Can GRUB2 share the EFI system partition with Windows?

I have an existing Windows 7 GPT installation, which already has a EFI System partition. I am now trying to install a Linux on a separate harddisk, which is also GPT formatted. I did not find any working way to get grub booting without EFI system…
crater2150
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What is UUID, PARTUUID and PTUUID?

In the blkid output, some lines contain UUID and PARTUUID pairs and others only PTUUID. What do they mean? In particular, why are two IDs required for a partition and why are some partitions identified by UUID/PARTUUID and some by PTUUID?
anatoly techtonik
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Dual boot windows on second harddrive, UEFI/GPT system

I'd like to install linux, but I don't want to risk damaging my current windows installation as I have heard a lot of horror stories. Fortunately, I have an extra hard drive. Can I install linux onto that and then dual boot windows without having…
goldilocks
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"Warning! Secondary partition overlaps the last partition by x blocks" in gdisk, is it safe to use gdisk here?

I'm trying to convert my hard drive from MBR to GPT using gdisk. When I run sudo gdisk /deve/disk1s4 I get this: Warning! Secondary partition table overlaps the last partition by 2032668853 blocks! You will need to delete this partition or resize it…
DisplayName
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Will dd if=/dev/zero of=/dev/sda wipe out a pre-existing partition table?

Will # dd if=/dev/zero of=/dev/sda wipe out a pre-existing partition table? Or is it the other way around, i.e, does # fdisk /dev/sda g (for GPT) wipe out the zeros written by /dev/zero?
user223600
14
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4 answers

Should I use fdisk for partitioning or GPT aware tools?

Question: Should I use fdisk when creating partitions? Or is it advisable to use parted since it uses GPT? (by default?) And with that I can create partitions larger than 2TB.
pepite
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Using UUID's with mdadm

I'm using GPT as my partitioning scheme. I check the UUID's of my partitions: # ls -l /dev/disk/by-partuuid/ total 0 lrwxrwxrwx 1 root root 10 Oct 18 22:39 0793009a-d460-4f3d-83f6-8103f8ba24e2 -> ../../sdb3 lrwxrwxrwx 1 root root 10 Oct 18 22:39…
Deleted
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How to renumber GPT partitions on an umounted disk?

I tried to sort (renumber) partitions on /dev/sdb via terminal, using gdisk from the operating system (running on /dev/sda) and none of the sdb partitions mounted but the only option I get is [-l] which lists options the option I'm trying to…
BillV
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Problem mounting GPT disk partition

I am trying to mount a partition on a GPT disk, but I get the following error: $ sudo mount -t ext4 /dev/sda1 disk/ mount: special device /dev/sda1 does not exist Looking at dmesg, I don't see any errors on /dev/sda: $ dmesg | grep sda [ …
Hamza
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Remove all traces of GPT disk label

I've got an USB pen drive and I'd like to turn it into a bootable MBR device. However, at some point in its history, that device had a GPT on it, and I can't seem to get rid of that. Even after I ran mklabel dos in parted, grub-install still…
MvG
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Undoing wipefs --all --force /dev/sda? /dev/sda

OS: Debian Bullseye, uname -a: Linux backup-server 5.10.0-5-amd64 #1 SMP Debian 5.10.24-1 (2021-03-19) x86_64 GNU/Linux I am looking for a way of undoing this wipefs command: wipefs --all --force /dev/sda? /dev/sda while the former structure…
Vlastimil Burián
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Expanding a disk with a GPT table

I'm running a CentOS 7 VM, where I have a second disk (sdb), which I need to expand often. After expanding the disk and I open 'parted' so that I can create a new partition, the following error message is returned: Error: The backup GPT table is…
Alex Y
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