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 ...

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Can I have a GPT partitioned SSD and an MBR partitioned HDD on the same device?

The title pretty sums it up though I am not sure if it is a valid question. And if not, can the HDD be GPT partitioned with already existing encrypted partitions?
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54 views

Will UEFI boot with EFI partition + MBR partition table work (instead of GPT)?

Is it a requirement for a drive to use GPT partition table if wanted use UEFI boot? Or is it still possible to use MBR partition table as format for drive's partitions and have bootloader saved in a ...
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31 views

Install Ubuntu 14.04 after Windows 7, 2 seperate disks, searched a lot but problem unsolved

My Thinkpad has two disks, 1 gpt ssd + 1 mbr hdd. My main OS is Windows 7, which is installed in the ssd (120GB, nearly full). Now I want to install Ubuntu 14 to the hdd, I searched a lot, I tried ...
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69 views

gdisk unable to write GPT table

I'm trying to recover a disk which appears to have a corrupt ID for the protective MBR. Yesterday I took a backup of the GPT and protective MBR, and dumped to file. At that time fdisk reported the ...
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28 views

Screen turns of during boot and turns on for loginscreen again

I have used Linux a lot in the last two years, and yesterday I installed Ubuntu again after a long term of using Debian. While there was nothing wrong during installation and even booting up a ...
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27 views

Trouble when trying to install Ubuntu in dual boot with windows 8.1

I used to work in a dual boot system (w10 & Ubuntu). I was just trying Ubuntu back then, but I liked it so much that I wanted more space in the hard drive for it so I installed w8.1 in a 500Gb ...
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45 views

Recover GPT partitions or partition table

I was partitioning a GPT hard disk using Gparted. I have deleted the Windows recovery partition successfully and merged that unallocated space to another unallocated space which was previously ...
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95 views

Dual Boot Windows 8 - Ubuntu 14.04 with msdos partition table

I have a self-installed Windows 8 on a disk with a msdos partition table. I boot in UEFI, and I have a 350m partition with EFI file of Microsoft. 1. Is it really possible to boot in UEFI with a ...
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13 views

How to fix “The system is running in low-graphics mode” (switchable graphics) [duplicate]

I installed Ubuntu 14.04 to my HP Pavilion laptop. After the installation ubuntu 14.04 it showed me “The system is running in low-graphics mode”. I have Intel Graphic 4600 & AMD Radeon 8600M ...
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2answers
250 views

How to resize a partition of a GPT throught Parted Command line tool. (Using SSH Rescue Env.)

I have a Remote Dedicated Server with no Online control panel to resize partitions after initial OS install, so I am using the debian based rescue environment to manipulate the partitions unmounted. ...
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40 views

Unable to resize Win partition under Ubuntu

I know my problem sounds pretty common but all advices I found on the internet did not worked for me. I try to resize partition and I cant lower its size.My previous SSD disk failed and I need to ...
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653 views

How i can change GPT to MBR?

I cant see my second hard drive wich is GPT, in linux, i mean i cant mount it or use data from it. On windows all good, I load windows8\ubuntu from grub wich use mbr on first hdd. As i understand, ...
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468 views

GRUB menu not showing with dual-boot UEFI mode installation

Previously I had Dell Inspiron Laptop with Legacy Boot and MBR disk partitioning with pre-installed Ubuntu 12.04. I needed dual boot with Windows. So I formatted it completely using Live USB, ...
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164 views

Converting unallocated space to GPT

I'm trying to convert either unallocated space to GPT or /dev/sda3 to GPT so that I can install windows on said partition. The issue I'm running into is that when I load gdisk /dev/sda it states that ...
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41 views

copy partition table on raid1 restore to the wrong disk

My computer had a broken disk (SMART warnings). Before I had no raid1. I created one following this tutorial: ...
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2answers
108 views

Trouble with partition on a USB flash drive

Xubuntu 14.04.3, USB flash drive 4GB. After using the standard tool for writing flash drives in Linux Mint 17.2 MATE i've installed Xubuntu, but when I decided to format the flash drive i got this: ...
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29 views

problem deleting MBR data and GPT data

I am trying to install Ubuntu alongside windows 8 for the first time so I know nothing about Ubuntu and I deleted what so-called MBR or GPT data or both using Ubuntu live by typing (sudo gdisk ...
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1answer
31 views

Installing Ubuntu without touching the rest of corrupted drive

I have a notebook with GPT and UEFI. This notebook contains Windows 7. But after some problems Ubuntu LiveCD destroyed partition table of this drive and maybe some data. I urgently need this ...
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1answer
203 views

How to install Ubuntu 15.04 on UEFI system with SSD

I am thinking about to install 15.04 to my PC which has the following specifications: Previously I have installed 14.04 on this system in UEFI mode and the entry of Ubuntu is still shown in UEFI. I ...
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43 views

EFI unstable bootloader

I am running (or trying to) Ubuntu 15.04 on my Toshiba Satellite Radius 11. In case you're unfamiliar with the Toshiba Satellite Radius 11, it is EFI and has a GPT hard drive. I boot into the live USB ...
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1answer
106 views

How can I change a drive's partition table from MBR to gpt without losing an NTFS partition at the end of the drive?

Long story short, I have an external USB hard drive formatted using a MBR partition table, and I want to install Ubuntu in UEFI mode in a ~23.40 GB unallocated space before a ~442.33 GB NTFS partition ...
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51 views

Suspected broken partition table

My machine is running Ubuntu 15.04 (amd64). I have two SSDs for the OS in hardware RAID1, and two 3TB rotary drives in fake RAID1 which hosts my encrypted home directory. This evening I was ...
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147 views

Location of grub on gpt partition

As far as i undersood the grub program is located fully in the efi partition if i have gpt partition scheme instead just as a link like it was in the older mbr. So now if i remove linux partition will ...
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67 views

Ubuntu 15.04 died when win 10 installed new boot sector

I have a gpt format disk uefi bios. I had ubuntu 15.04 and Windows 8.1 dual booting fine. Windows 8.1 would not install security updates unlessI also installed Wondows 10. Linux vanished and cannot ...
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212 views

EFI/GPT system partion with bootable RAID 1 system installation

I've used the ubuntu server installation image to install onto a RAID 1, which is two disks mirrored for redundancy. My configuration is as follows: /dev/sda - 500GB /dev/sda1 - 1GB, EFI system ...
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318 views

Windows 8 installer complains about MBR partitions, but I don't see any?

I would like to install Windows 8 on my iMac (mid 2010 model). Currently the main OS on the iMac is Ubuntu 14.04. Using gparted I created an NTFS partition in preparation to install Windows 8 on it. ...
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1answer
5k views

WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted

I've just installed Ubuntu on a new SSD along with a HDD for data. Strangely, when I divided partitions at install, 1MB of non-removable free space was reserved at the beginning of each disk. I ...
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992 views

GParted will not start, corrupt GPT table

I'm trying to start GParted and get the following series of errors in pop-up boxes before it eventually quits: Invalid argument during seek for read on /dev/sda Libparted Bug Found! The backup GPT ...
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1k views

Converting one partition from MBR to GPT to install windows without losing linux

I used to have dual boot with Ubuntu 14.04 and Windows 8.1. I decided to delete Windows partition because things weren't working right on Windows, but now I want to install them again. I now have 230 ...
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2answers
85 views

Trouble creating fat32 partition larger than 1 TiB with gpt partition table using gparted

I have a 6 TiB hard drive that I would like to make a fat32-partition on covering the whole hard drive. When trying to do so using gparted (first creating a gpt partition table, and then trying to ...
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3answers
132 views

Booting Ubuntu 14 on Samsung laptop. rEFInd does not see the hard drive

Good day. I am having a really hard time trying to get Ubuntu booting on my Samsung Series 3 laptop. Ubuntu has been installed (and it's the only OS), but didn't boot. I have been through common ...
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47 views

Can't set uefi boot order. Faulty firmware? [duplicate]

I am trying to change boot order on my UEFI GPT system (because of preinstalled Windows 8.1) on my HP Envy 15. Successfully installed ubuntu alongside windows. Boot-repair said it successfully did ...
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1answer
88 views

Kubuntu 14.04 installer does not recognise partitions on hard disk with GPT

For a friend I'm repairing a computer so I have a brand new hard drive lying around. I've found documentation that Linux is capable of booting from a hard drive even if the computer is not UEFI ...
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3answers
2k views

Is it safe to remove “diag” flagged partitions?

I have a samsung laptop which came with windows 8 on a 1TB HDD. I am preparing my disk with gparted. I expected to see 2 or 3 partitions but there are actually 7! Now I've brushed up on UEFI and gpt ...
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1answer
657 views

SATA SSD GTP table will not reformat

I wanted to reformat my drive as msdos table so i could use it in another system without uefi and put a new installation on it since the laptop it was in died. That said, i first tried gparted and ...
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1answer
313 views

The CRC for the main partition and back up partition table are invalid

I've been having problems with my HDD since I tried dual booting ubuntu 14.04 with windows 8.1. When I was installing from the ubuntu installer I was receiving "input/output error during write on ...
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2answers
5k views

GPT vs MBR. Why not MBR?

I am a Linux user. I don't have Windows on my laptop. Also the hard drive size is less than 2 TB. Then why should I use GPT tables? Can't I go with old fasioned MBR? I will be having two root ...
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194 views

How to re-setup swap partition in GPT system

I installed Ubuntu 14.04 as dual boot on my windows 8 acer desktop pc. I am sure I set up a swap drive but now if I do swapon -s I don't seem to have a swap partition. Upon sudo fdisk -l I get: ...
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980 views

Ubuntu 15.04 UEFI installation issue on Dell Vostro 3460

I downloaded the RTM ISO of Ubuntu 15.04 (Vivid Vervet), and I created with the latest version of Rufus the UEFI/GPT installation disk. I tried to begin the installation in the UEFI-mode, but it ...
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1answer
642 views

How to get data off a Windows partition when “primary GPT table is corrupt, but the backup appears OK”

Was running Windows 8.1 on my Asus Laptop (U37VC). Blue screen; error 0xc000000e. Figure I've screwed up the boot somehow (some hard reboots lately after annoying lags). After disabling the boot ...
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1answer
91 views

Is GPT BIOS partition is really needed?

I have notebook with GPT partition format, EFI, LUKS, LVM, 64bit system and everything works perfectly. I wasn't created GPT BIOS partition. Now I want to test some Ubuntu features on virtual machine, ...
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404 views

UEFI Ubuntu installation no longer boots after moving a partition

After resizing moving a large partition on the same drive with Gparted that contains my EFI partition, my Ubuntu installation (15.04 x64) no longer boots in EFI mode. When I try to manually load the ...
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40 views

Can't read 2TB Hard Disk , don't exist dispositive.

I have a new 2TB external USB HardDisk, and I can't open or format it. I'm gotting diferent kind of errors, for example: If i execute: sudo mount -a /dev/sdb sudo mount -a /dev/sdb1 The response ...
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56 views

RAID 1 disk from old server not recognized when taken off to a new machine

I had an old Ubuntu server at home, with two 1TB HDD in RAID1 configuration. I stored a lot of my works and stuff there, then eventually stopped using the server and let it get the dust for some time. ...
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2answers
7k views

Can't boot a live usb .iso in UEFI mode on Lenovo Edge-15 laptop

I was trying to install Gentoo on my laptop Lenovo Edge-15, but I'm having problems booting a live usb .iso in UEFI mode. I then tried to install Ubuntu, Arch, and Fedora, and seem to be having the ...
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1k views

Can't dual-boot Windows 7 after installing Ubuntu

After having some compatibility issues with some software on Ubuntu, I decided I should dual boot windows 7 so I can use that software. After booting from an Ubuntu live CD and partitioning off 100GB ...
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1answer
294 views

Unable to Install Ubuntu alongside Windows 7 (Legacy BIOS)

I am trying to install Ubuntu 12 / 14.04 (x86 & x64) alongside Windows 7. I have a bootable USB stick and when I try to install Ubuntu there is no alongside Window` option neither the Windows ...
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661 views

JMicron JM20339 USB SATA Controller Problem

I Have 3bon-s35s SATA to USB converter(or controller). It use JMicron JM20339 chipset. Windows 7 can recognize WD 4TB HDD, but Ubuntu dosen't. dmesg shows below [ 2.990457] scsi 6:0:0:0: ...
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32 views

GPT detected! How do I create a boot partition? [duplicate]

Okay so I have a computer that has a brand new harddrive. Nothing on it. I tried installing ubuntu 14.10 on it and it will not boot from the Hard disk. I installed boot-repair and I got an error that ...
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2answers
717 views

How to Setup GPT for 3TB

I have a 3TB HDD that I want to run Ubuntu 14.10 server as a file server. How can I format the drive so it will work?