Questions tagged [gpt]

The GUID Partition Table (GPT) is a method of partitioning disks. It features up to 128 partitions by default and it uses 64-bit pointers, which means it fully supports disks of up to 8ZiB, as opposed to the 2TiB limit of the older Master Boot Record (MBR) partitioning scheme. GPT is most often used on EFI-based computers, but it is sometimes used on BIOS-based systems, too.

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Recover damaged partition on SanDisk Ultra USB Thumb Drive

I most likely pulled the drive during a write operation and damaged the partition data. The drive now won't show in Disks or gparted but it will show in lsblk and fdisk, but not consistently. lsblk (...
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Create Ubuntu usb drive on GPT

I'm trying to make a USB with ubuntu on it be bootable from Macs. I have made a working usb drive partitioned MBR, it boots on my laptop but not on Macs. I predict that the problem is that the usb ...
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Cannot boot ubuntu after fresh install

I am new to Ubuntu. I have erased windows and installed Ubuntu 20.04. But after installation I am not able to boot. In BIOS I can see Ubuntu option but when I click nothing happens. I am using ASUS ...
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Boot problems, win8,win10,ubuntu, efi, gpt

I apologize as this I'm sure has been asked several times,it just seems I can't figure it out, I have win8, win10 and ubuntu, I installed debian once, before win8 I had win7, well, I add my boot ...
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Convert MBR to GPT on macbook

There is a nice thread here describing how to convert from MBR to GPT partition scheme. Unfortunately it says not to use it on apple macs. I have one of these, how can I here convert from MBR to GPT?
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Can I install Ubuntu in dual boot mode on a disk that has GPT partition style?

Now I am on Windows 10 but I want to use Ubuntu in dual boot mode. I have a disk named "Disk 0" and it's partition style is GPT. Can I do dual boot even if my disk partition style is not in ...
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Convert MBR partition to GPT without data loss

I have an MBR partition which I want to convert to GPT without loosing all my data. Bios is UEFI. I am not an expert of hard disks, so please be patient. I have seen this and this but I cannot ...
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“The backup GPT table is not on the end of the device.” error on a new RAID

I created this new mirror on Intel RST enabled motherboard via Intel controller setup, available during POST. It appears as /dev/md126. Subsequently I created partition and fs on top of the array: ...
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Ubuntu MBR issue

I have a Lenovo ThinkPad e14 gen 2 AMD which came with 250 gb WD NVME ssd. I decided to install Ubuntu 18.04 in dual boot with windows in a separate drive. So, I bought a second ssd (Kingston 250gb ...
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ZFS partition type and GPT partition label

Earlier I created a new partition with FSTYPE zfs_member, and (I think) I set the GPT partition label to the new name of the ZFS pool, and then created the ZFS pool in this partition (zpool create ... ...
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Help with creating a live USB with Ubuntu 20.10

I'm trying to create a live USB with the latest Ubuntu but without success. Steps I did: Downloaded the ISO image Verified the image I tried with gnome disks, ubuntu's Startup Disk Creator and ...
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Restoring a 512GB UHS micro SD card primary partition table and trying to make an ext2 partition

Ok, I had quite a rough time trying to make an ext2 partition in order to make an Ubuntu install on this card. At first I tried to format the second partition as ext4, but it never worked. after ...
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Kubuntu not bootable anymore

I am using Kubuntu 20.04 and I getting stucked on a normal Boot operation with/after the disk manager So I guess the problem is the disk manager or the service which should came next (would be nice to ...
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Purple Lines at boot (possibly initramfs decoder error)

What is happening is that when I try to boot normally, I get stuck in a black screen with some purple lines. Before I did anything it was showing a Initramfs decoding error and after looking it up, I ...
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Correct partitions only show up in Disks, no other tool can read them

Here's how my partitions show up in the Disks utility. Note that trying to manage them at all e.g. deleting one gives a udisks-error-quark 0 I've been trying to figure out what's wrong, so I can ...
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Installing Lubuntu 20.04 with GPT and EFI

I had an existing installation of Lubuntu 18.04 which I wanted to upgrade to 20.04. Lubuntu docs say this requires a fresh install. My previous 18.04 installation was using GPT and EFI. During ...
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Partitioning for installing

I want to install 20.04 from flash on a new laptop (Lenovo Ryzen 7 512GB).I plan to use it in GPT mode. Which partitions should create, in which filesystems should I format them, and also to mount ...
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Change a SD card partition table from MBR to GPT

I tried to use diskpart to convert a micro sd from MBR to GPT and it said it was not possible with the message some volumes like cd ROM and other disks cannot be converted. I'm trying to use it as a ...
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Single boot fakeRAID-0 UEFI GPT problem with a strange workaround

I wanted to install a single boot Ubuntu 20.10 on fakeRAID-0 UEFI GPT by a live bootable flash disk. The system did not boot after installation, so I checked whether Ubiquity correctly installed UEFI ...
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Grub only in shell mode, wrong root and prefix set

I am dualbooting a Laptop with Windows 10 and PopOS using grub2. The problem is that grub doesn't show the OS selection menu and instead just goes to the grub shell. How can i configure/install grub2 ...
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197 views

Unable to install Windows 10 next to Ubuntu: GPT error

I have Ubuntu installed, but I need a Windows next to it. I'm trying to follow this guide to do so, but when I reach the screen where I'm supposed to choose the space for Win I'm getting an error: &...
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Windows cannot be installed on this disk. The selected disk has an MBR partition table

I hope this is the right place to ask this question since it's an issue somewhere between Windows and Ubuntu. I used to dual boot Windows 10 alongside Ubuntu. All worked fine until Windows forced some ...
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How to boot Ubuntu, Manjaro and Win 10 in separate drives? UEFI [duplicate]

I have installed win10 in a 2tb hdd and Manjaro in 250GB drive in a gpt UEFI system I have other drive (250gb too) and I want to install Ubuntu in it. But how can I partitionate and install correctly? ...
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My HDD of Ubuntu 20.04.1 installed onto is absent in the boot menu

Sorry for posting it again. I forgot my password :(. I burned Ubuntu 20.04.1 LTS on a pendrive using rufus 3.11. I booted with only pendrive and HDD, the one to Ubuntu 20.04.1 be installed onto. It ...
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Is there any way to force restore a gdisk gpt backup?

I have a computer with Ubuntu 16.04. That computer have three disks mounted as a RAID 0 using motherboard's Intel RST. Over that RAID I've installed Ubuntu. Now while doing some maintenance I have ...
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Dual Boot Ubuntu on HDD and Windows on SDD, tried installing but grub not working

I have an SSD of 256GB with Windows 10 installed in it. I want to install Ubuntu 18.04 on HDD. I tried installing it on HDD by creating /, /boot, /home , EFI partitions ( I was unable to install ...
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contents unknown in disks under gpt partition

I changed the partition type to gpt on top but after changing this the,disks are showing the hard drive partition as contents as known and file system as unallocated space.I can't see my files and ...
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910 views

External Hard Drive “The backup GPT table is corrupt”

So, I recently installed Ubuntu on my old laptop after using Windows 10. I was using an external HardDrive (Seagate Backup Portable 4TB - formatted as NTFS) on windows, that I started using on Ubuntu. ...
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BIOS Legacy and GPT partitioned external HDD installed with Ubuntu 20.04 LTS Boot repair result shows error about sectors

Why does the error show during boot-repair? FYI: My external HDD size 4TiB. ERROR: unsupported sector size 4096 on I have my machine which shows as: ubuntu@ubuntu:~$ lscpu Architecture: ...
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868 views

ubuntu-20.04-desktop-amd64.iso installation fails on Laptop with NVMe drive

I am not able to install Ubuntu 20.04 on Lenovo laptop. Unfortunately, the installation stalls when I define the mount point, enter name and password to set up the computer name and then click on the "...
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3TB HDD in legacy BIOS or EFI?

How do I mark the unallocated space as bootable? ubuntu@ubuntu:~$ ubuntu@ubuntu:~$ sudo fdisk -l | grep Disk Disk /dev/loop0: 1.93 GiB, 2049204224 bytes, 4002352 sectors Disk /dev/loop1: 27.9 MiB, ...
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Dual-boot WIndows 10 (GPT) and Ubuntu 18.04 (DOS): Is that a problem?

I have a SSD with Windows 10 and a disklabel type gpt and a HDD with Ubuntu 18 and a disklabel type DOS. I have read that having 2 disks with 2 different OS, and one disk is formatted to gpt and the ...
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Questions viz. UEFI enabled post Ubuntu Mate installation while the Partitioning is still MBR

If 'UEFI Boot Support' is enabled in BIOS (was previously disabled) and if the 'Partitioning' is still 'MBR' then: Would the OS boot? If it boots, would there be any performance improvement? Are ...
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My linux disappear after instaling windows

Please, help me, I really need it. I have laptop Lenovo Legion y530H, it is quite problematic laptop for linux but I installed it with official guide. Laptop has 1000Gb hdd and 256Gb ssd. I used ...
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236 views

Cannot install lubuntu (or any other distro) with usb on acer ES1-111-C3R9

I'm getting crazy with this, I have installed 1 million linux distros in my life but can't with this pc. I have tried EVERYTHING, now I gonna put the list of the one million things I tried. pc: acer ...
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1answer
2k views

GNU grub 2.0 minimal bash-like line editing is supported message appears

I have a Lenovo IdeaPad l340. I installed Windows 10 in UEFI mode. I liked installing Ubuntu 18.04 but this problem appears to me GNU grub version 2.02 minimal bash-like line editing is supported.......
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Why do my WD blue 4tb disks show up as 2tb in gparted, gdisk, parted, and fdisk

They're attached using a dual sas raid card. The goal is to use mdadm to create a large raid 6 array for nas purposes and a plex server. But I'm not going to try to create a massive 24tb array if I ...
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Restoring a partition table using gdisk output

I seem to have messed up the partition table of my mobile phone, and I was wondering whether I can recreate it from the gdisk output that I still have, using the Ubuntu installation on my laptop. This ...
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1answer
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Ubuntu 19.10 dual boot, can't find computer's harddrive for installation

I tried to install Ubuntu 19.10 in the usual dual boot configuration on my new Dell Latitude 5500. It came with BitLocker encryption on its 512GB drive. I shrank the volume to about 200GB for Ubuntu, ...
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Repair or re-install Ubuntu? (Dual boot Windows 7, Ubuntu 16.04, UEFI + GPT)

(I am a slow reader and am presently working my way through many threads that Search and/or Google found. While I am reading, I am going to ask the following question in the hopes someone might ...
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Mdam Raid Is fine but Primary GPT Table is corrupt

Im running mdadm raid one with two drives of different sizes. I have a partition on the bigger drive that is the same size as the smaller drive and then mdadm uses the partition and the whole smaller ...
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141 views

“Default boot device missing or boot failed” after erasing GPT

I wanted to install Ubuntu with dual-boot but the installer couldn't find the windows partition. I read online that erasing the GPT could help. I did so with gdisk (wich told me that I have MBR ...
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778 views

Should /boot/efi be mounted?

Ubuntu is on a GPT disk. At some stage in the past I needed access to the efi partition. I notice that it's mounted at /boot/efi. My question is for people who are using UEFI disks and not MBR (MBR ...
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Boot-Repair report

I had a dual boot with Ubuntu 18.04 and Windows 10, but because I wanted to play World of Tanks I needed to install Windows 7 too. Therefore I attached another hard drive to my motherboard, but I ...
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how to truncate a disk image file of unused space without corrupting GPT partition table (end pointer)

Lots of info on taking a image of a disk and shrinking the root (bionic) filesystem partition and then truncating the image to remove the part that became free space. Like https://softwarebakery.com/...
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239 views

default boot device missing or boot failed after destroying GPT data

I was trying to install Ubuntu 18.04 parallel to Windows 10. I was unable to find any of the partions while installing ubuntu and I came across this answer. I tried the steps mentioned by Walid Ammou. ...
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W10 duel boot Problems with kernel package in Ubuntu (18.04.3 LTS)

Lenovo ideapad 100-IBD I hoping to inspire or get pointed in the right direction. I am not able to make a comment and don't know how to get heard without 30 comment points. When your over 60 this ...
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How to format HD 1TB in more than three gpt partitions? [duplicate]

How to format HD 1TB in more than three gpt partitions without any operarations system. At least 7 partitions in gpt There is a tutorial to do gpt partitions? 1 for Windows 10 and the others that are ...
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Is there any benefit in using UEFI GPT instead of Legacy MBR? [duplicate]

Is there any benefit in using UEFI GPT instead of Legacy MBR? Many thanks in advance!
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412 views

EFI boot and Grub setting for a system with 2 different Ubuntu distributions - configuration

I have a system with two storage disk that are GPT partitioned. One disk is installed with Ubuntu 16.04 and another with Ubuntu 18.04. Each has its own EFI System Partition (with boot and esp flags) ...

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