Questions tagged [gpt]

Use this tag for GPT partition tables.

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1answer
900 views

Install Grub Boot loader in different folder on UEFI!

I am new in UEFI and I moved to GPT. I am now using windows 7 and 10 in dual boot. I want to install Grub boot loader in a different folder, not in the EFI system partition/ESP. So, Windows boot ...
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1answer
989 views

Ubuntu 14.04 software RAID with LVM install won't boot on bare metal

If I setup a VirtualBox guest with two 30 GB virtual hard disks and follow the following steps, the result will be a fully functional, booting operating system: Boot Ubuntu 14.04 Server install CD At ...
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1answer
1k views

grub-install on hybrid mbr disk

I followed the very detailed guide for making hybrid MBR record (GPT/MBR) taken from here Now, gdisk says I have hybrid mbr. But I can only boot in UEFI and cannot do that in BIOS (I use external ...
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1answer
4k views

Resize an LVM partition on a GPT drive

We have a Centos server as a virtual machine where the / path is getting full. So we want to resize the partition from 50GB to 70GB. I followed this guide https://www.thomas-krenn.com/de/wiki/...
77
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7answers
113k views

GPT or MBR: How do I know?

How can I tell whether my harddrive is laid out using an MBR or GPT format?
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1answer
922 views

booting gentoo using uefi and gpt

I just used the amd64 minimal installation iso (installed on usb drive) to install and configure gentoo linux with the following make.conf: CFLAGS="-march=native -O2 -pipe" CXXFLAGS="${CFLAGS}" ...
2
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1answer
61 views

On UEFI laptop, Linux Mint has crashed twice

In the last 2 months, I have installed Linux Mint 19.1 on two laptops. On the older of the two, a Samsung Rv511 (ca. 2011) using MBR partitioning, there have been no problems at all. Linux Mint has ...
2
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2answers
55 views

How to determine if a PC has a combination of GPT disk and legacy BIOS boot, where the boot code is read from the MBR?

In a comment, Johan wrote: In the rare combination GPT disk + legacy BIOS boot, the boot code is read in the old-fasioned way from the MBR What is the proper way to determine if a PC has the ...
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0answers
11 views

Mounting windows server 2016 Azure VM GPT basic NTFS partition on linux

I have an azure blob (a .vhd disk) which is a copy of a windows data disk created by taking a snapshot of the live disk, then copying that snapshot to a temporary blob, which is the blob I have ...
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1answer
42 views

How to recover lost data after disk MBR to GPT conversion?

When I curiously selected to "create a new partition table" and the new type of it is GPT, GParted poped a warning message that "I may loss all...", but I still clicked yes, as I thought all the ...
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3answers
14k views

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.
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1answer
20 views

GPT header Backup

The first 512 bytes of MBR disk contains boot code and partition table, backing up (dd command) this area is useful. I have switched to GPT right now, and want make a backup, is it in the same way to ...
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2answers
112 views

Kali Linux installation on USB drive

I want to install Kali Linux on a 64 GB USB drive and want to take it just anywhere and plug it in any PC and have my setup up and running. IOW I just want a HDD like complete Kali Linux portable ...
4
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1answer
1k views

Linux can't see any of my partitions — The backup GPT table is not at the end of the disk

I'm trying to install Linux on my HP Pavilion 14 inch ultrabook, but without any success. At first I tried installing Ubuntu on it; everything went fine, I got into the Live DVD (yes I'm oldschool ...
4
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1answer
2k views

Can't restore/reformat my USB flash drive after moving to GPT

I have 8GB flash memory stick. Sometimes ago I formatted it to be able to install Windows from it. I can't remember what exactly I did but I think I wanted to be able to install Win 7 64-bit to boot ...
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4answers
5k views

Dual booting Ubuntu and Windows 8. w8 boots through grub shell, but not from menu

I have a laptop, with installations of Ubuntu 12.10, and Windows 8. Windows 8 was first installed on the system, and Ubuntu was installed afterwards. During the Ubuntu installation, the installer ...
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3answers
2k views

Mounting efi disk on external USB

Recently I bought new sshd to replace my old one on my notebook, but I have problem. I installed Ubuntu 15.10 on new one and put the old on usb case I have, but the disk on USB doesnt have partition (...
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1answer
1k views

Fsck on partition inside RAID broke file system AND RAID

What was: RAID 1 with mdadm on whole disks say /dev/md0 from /dev/sda and sdb, GPT with one partition on md0 and ext4 on this partition (md0p1). What I think happens: after changing motherboard linux ...
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3answers
2k views

How do I test bootable USB created with UEFI GPT partition scheme

I am frequently testing bootable USB devices with different operating systems. Now I have to boot the whole computer just to test one USB device. How can I test the devices without booting? QEMU works ...
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1answer
951 views

Dual boot - Installed arch and windows entry disappeared on grub

I've installed Arch on a partition, and installed grup as the wiki says grub-install /dev/sda grub-mkconfig -o /boot/grub/grub.cfg Now I only get Archlinux and Advanced options and no Windows. ...
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0answers
50 views

unable to create a bootable USB Debian Stretch disk using LVM with GPT partitions

I'm stuck for several days whith a issue when I try to create a bootable USB disk GPT partitonned. I would like this disk to be like a bootable "backup" disk for my live system. (In fact the system ...
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1answer
9k views

Arch Linux on an UEFI-GPT system with Windows 8.1 dual booting [closed]

I'm going to install Arch Linux on an UEFI computer. I've also Windows 8.1 installed and I would like to keep this operating system in dual boot with Arch. I should ask many questions, because this is ...
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4answers
3k views

Are there extended partitions in GPT partition table?

Under the MBR model, we could create four primary partitions one of which could an extended partition that's further subdivided into logical partitions. Consider this GPT schematic taking from ...
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2answers
122 views

How to mount a device of gpt type?

In Linux Mint 18.3 which boots from an HDD, I want to mount an external SSD. When I run the command sudo fdisk -l, I get all the drives and partitions as well as the SSD and when I run sudo blkid, I ...
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1answer
107 views

Arch not recognising GPT drive

I just finished installing Arch and my 3TB GPT drive (this is not my boot drive) is not showing in arch. I initialised it as GPT on my windows 7 machine and that machine is still able to read from ...
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2answers
1k views

Why is GPT recommended for UEFI

3rd time re partitioning my 1TB SSD so hoping to get it right. Learning but still many questions Because my system has UEFI firmware and already have a SSD dedicated to Windows my understanding is ...
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3answers
196 views

How install legacy grub to gpt uefi disk?

I have new computer with UEFI. I formated the disc as GPT (not MBR), made few small partions on start (as placeholders for UEFI, for boot, for swap etc ...) then larger partition for system / (and ...
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1answer
258 views

Am I able to install Arch Linux with the 100MB EFI partition that Windows 10 had already created on installation?

I want to dual-boot Arch Linux alongside Windows 10, which is already installed. I am using UEFI-GPT. On Windows 10 installation, it creates an EFI system partition as required by UEFI. This ...
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0answers
1k views

Disk with corrputed alternate GPT

I have a disk which has a corrputed alternate GPT and Linux doesn't want to read the primary one. I see all sorts of weird messages in the kernel logs. Here's what happens when I plug in the drive. [...
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1answer
50 views

In GPT, can a partition be partitioned further into partitions?

I heard that GPT makes MBR's distinction between primary partition, logical partition, and extended partition disappear. In GPT, can a partition be partitioned further into partitions, in the same ...
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1answer
175 views

What do the partition table types and flags mean in the output of parted?

In the output of sudo parted -l: Model: WD My Passport 0748 (scsi) Disk /dev/sdb: 1000GB Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size ...
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1answer
99 views

Installation and booting scenarios for combinations of boot sector (GPT or MBR), firmware (BIOS or UEFI)?

I think all the confusions in this post come from coexistence of old and new technologies and abuse of terminology such as mentioned in https://en.wikipedia.org/wiki/...
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1answer
57 views

What is a generic name for the sector which stores the partition table of a disk?

If a disk uses GPT partitioning method, is its first sector still called MBR? What is a generic name for the sector which stores the partition table of a disk? Thanks.
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2answers
161 views

Fedora 16 fails to boot after Win7 installed a GPT Drive

So, I have Windows 7 and Fedora 16 installed on my old HDD. Everything worked well and fine before I've had my new 3TB drive built in, which I initialized as GPT in Windows. Actually I initialized 1,...
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0answers
17 views

How to diagnose the difference in OS performance between installation media?

I have two different USB sticks, a 128 GB Samsung and a 64 GB SanDisk. I used Gnome Disks to benchmark both of them and the Samsung one was supposedly better, it had faster read and write speed but it ...
65
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5answers
132k views

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 ...
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1answer
56 views

Dual Boot Linux Partition shows as Partition Table: loop in parted (Why?)

Recently I was checking into my partition scheme on my dual boot laptop (Peppermint OS, Windows 10). I was surprised by the output from parted /dev/sda12 (my Linux root partition) Model: Unknown (...
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0answers
22 views

Realigning GPT partitions to 4k sector boundaries?

If I have an HDD with GPT, and the partitions are not aligned to 4k sector boundaries, is there a tool to realign the partitions to 4k sector boundaries? Suppose I have UEFI stuff on the HDD in ...
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1answer
639 views

How to force GPT partitions in kickstart for Oracle Linux 6

I want to configure OL6 kickstart to install a system that boots from BIOS but uses GPT partitioning instead of MBR, even for disks <2TB. The relevant part of my kickstart file looks like this ($...
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1answer
27 views

Are timestamps created with new GPT partition tables?

Are timestamps created with new GPT partition tables? If so, where are they (i.e, headers, entries, GUIDs, labels)? How are they accessed?
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2answers
3k views

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?
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2answers
3k views

Gnu Parted Error in HardDisk of Linux?

Why the error getting when excuting the fdisk -l command in linux. # fdisk -l /dev/sdb WARNING: GPT (GUID Partition Table) detected on '/dev/sdb'! The util fdisk doesn't support GPT. Use GNU Parted....
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2answers
1k views

Can't install Fedora 29 on Thinkpad W550s due to GPT

I have a Lenovo Thinkpad W550s that already has Windows 7 on it. I would like to install Fedora 29 Workstation alongside Windows 7, but I have run into some problems. The hard drive was formatted ...
0
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1answer
2k views

Backup boot record of GPT disk

I know how to use dd to backup the boot record of a MBR partitioned disk, but how do I backup the boot record of a GPT partitioned disk? (I use sgdisk to backup the partition table, but also need the ...
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1answer
1k views

How to re-create RAID1 really properly

System: Laptop with Linux Mint 17.3, 1x SSD for system and 2x HDD intended for RAID1 using mdadm. Situation: Without knowing how to create RAID1 properly, I created it badly. GParted showed a ...
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1answer
5k views

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 ...
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1answer
5k views

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] ...
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1answer
421 views

linux gdisk (on 4TB USB drive) followed my mkfs — but mkfs doesn't see new partitions

I just bought two new 4TB external USB disks for backups http://www.bestbuy.com/site/wd-my-passport-4tb-external-usb-3-0-portable-hard-drive-black/5605533.p that came performatted with a single ...
32
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5answers
141k views

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 ...
8
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3answers
21k views

Getting the extra GPT info; a “fdisk -l” equivalent

What is the equivalent for GPT using HDDs of: # fdisk -l /dev/hda > /mnt/sda1/hda_fdisk.info I got this from https://wiki.archlinux.org/index.php/disk_cloning (under "Create disk image") for ...