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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Windows 8.1 Dual Boot Ubuntu 14.04 - dmraid and fixpart

I'm trying to install Ubuntu 4.14 on dual boot with Windows 8.1, but when beginning the LiveUSB the Ubuntum, the partitions created by Windows 8.1 are not recognized, reports that all is HD as ...
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Create GUID partition table (GPT) during Ubuntu Server install

On a computer with a new empty hard drive of capacity < 2 TB, I install Ubuntu Server with the standard text-mode installer. I choose to manually partition the disk. Then I can create a new empty ...
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Failure Upgrading 12.04 to 14.04 Possibly deleted Windows partition, now will not boot (Error 1962: No operating system found)

I think I have dug myself into an irreparable hole, but it would be nice if those more wise than I could help confirm that and/or save my computer. I have a Lenovo ThinkCentre K430 that was merrily ...
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2answers
115 views

Why I need several boot partitions (EFI and bios grub)?

I'm trying to understand how to properly partitioning the disk for future Ubuntu installations. The reason: after trying to install Windows 7 alongside Ubuntu, I enabled "Legacy mode" on my HP ...
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83 views

3tb GPT external drive mounting problems [duplicate]

I'm having trouble accessing all the partitions on an external 3tb harddrive. I've had it working in Mac10.9, and windows 7. The other similar questions here do not seem to resolve my issue. I'm ...
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125 views

Trying to access/mount raid array with gpt partition table

My raid arrays seem to be giving me alot of hassle under linux. I have 2 RAID 0 arrays: - 2 x 120GB SSD with MBR partition table (windows 7 x64) - 2 x 3TB HDD with GPT partition table (data/storage) ...
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65 views

Recovering GPT w/ encrypted partition

I have a removable HDD whose partition table became corrupted during an interrupted file transfer. The device should contain a GPT with a single ext4 partition encrypted by dm-crypt/LUKS. lsblk: ...
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19 views

Share LAMP between two Ubuntu installations in same drive

Two different Ubuntu installations in same GPT drive. Say Ubuntu 14.10 in /dev/sda3 and Kubuntu 14.10 in /dev/sda4. I'm running LAMP in both. Is there any way of sharing LAMP binaries between both ...
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Ubuntu 14.04 single-boot with UEFI-mode enabled

I recently purchased a Dell Vostro 5470 with a pre-installed Windows 8 OEM on a HDD 500GB. Now I'm trying to replace the HDD with a Sandisk SSD 240GB as my main disk (next step will be use the HDD ...
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249 views

Partitions Grub UEFI GPT MBR

I'm having a problem with the partitions in my system. Yesterday, I wanted to try Arch Linux, so I installed it in a new partition and in the process I was told, since my system is UEFI, I had to ...
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92 views

HDD with broken MBR and GPT

My HDD is broken because of my Windows Technical Preview. I updated the WTP, but after updating i could not boot (i have ubuntu installed alongside). When i boot i could not go to the BIOS (only saw a ...
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108 views

3TB partition disappeared by Windows 7

I am wondering if anyone can help me with a problem... I have a dual-boot Ubuntu and Windows 7 system. I bought a new 3TB HDD as I needed more storage space (the HDD is not used to boot the system). ...
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1answer
332 views

Cannot mount GPT Windows partition

I had a Windows 7 machine with 167GB. I wanted to install Ubuntu on it, so I shrank the partition into 111GB and 56GB. Afterwards I installed Ubuntu 14.10 32-bit in the newly created 56GB partition. ...
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1answer
161 views

problem on dual boot ubuntu 14.04.1 alongside windows 7

I have lenovo e530(core i5). when I want to install ubuntu alongside windows 7(ultimate), in the menu i select install alongside, the continue change to restart to continue and when I press it, my ...
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1answer
254 views

Dual boot Windows 8.1 Ubuntu EFI GPT: rEFInd won't start automatically

My machine is an HP DM1-4341sa netbook which came with Windows 8. I've since wiped the disk, changed the disk type to GPT and clean installed Windows 8.1 from ISO, leaving space at the end of the ...
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278 views

How to restore a LUKS partition?

My /home partition disappeared on my main HDD. I changed SATA slots, then I got strange "no lvm available" errors during boot when usually the password would be entered (I do not have any lvm setup at ...
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33 views

How to recover a GPT after wrong zpool creation?

I run zpool create /dev/sda instead of zpool create /dev/sdaX. The command failed after ~2 seconds with an error I can't reconstruct or remember. I guess if I had sent SIGINT to zpool it would have ...
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37 views

Is it correct behavior if badblocks destroys the partition table if invoked with -n option/in non-destructive mode on a device file?

I'm having trouble to believe that badblocks didn't destroy my partition table (help for restauration shall not be the issue here), so this question came up. There's been one btrfs partition on the ...
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1answer
31 views

Problem partitioning ubuntu as dual boot

I have installed windows 8.1 (64bit), when i try to install ubuntu alongside with windows, it doesn't shows the Alongside windows option, and when we select sometlthing else option, it shows as if the ...
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1answer
358 views

GPT partitioning on a bios/non-efi motherboard with a SSD

I have a 2 year old Intel DH67CL1 BIOS motherboard(non-efi). I am reading about GPT partitioning and wonder whether it is useful in my case. I have still reservations whether to use GPT and what ...
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71 views

can not make primary patition or logical (MBR to GPT)

I wish to make dual boot windows and ubuntu on del inspion 5721 comes with ubuntu installed Hard disk consists of 3 primary and extended swap partitions In order to get new partitions from free ...
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1answer
139 views

Ubuntu / Windows 7/8 boot issue

I installed a dual boot Windows 7/8 on my laptop and now I also added a Ubuntu 14.04.1. To install Ubuntu I did an efi partition on sda1, a swap partition (sda6) and root (sda7) After the ...
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1answer
35 views

Problems restoring grub

I have used fsarchiver to move the content of my old hard drive on a new bigger SSD. Basically, one partition with Ubuntu 12.04. Everything went fine. But now I can not boot. I used GPT and I also ...
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96 views

Convert Physical to Virtual - GPT System Error

I'm trying to convert physical Ubuntu machine to virtual using VMware. I keep getting this error: "The source computer has GPT disk(s). Conversion of live computers with GPT disks is not ...
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362 views

What is the best freeware app for Windows to mount EXT4 partitions (from a GPT 4TB Disk) as RW, safely without corrupting the EXT4 partition? [duplicate]

My Computer is set up as Dualboot Windows and Ubuntu. I have 1 OS drive, and 1 hard drive with a /backup partition (which has all my family photos and data) and it is ext4. Also note... it is EXT4, ...
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1answer
170 views

USB dock for 4TB Seagate HDD only works with less then 2.2TB of data

I have one of those Seagate 4TB HD and everything went fine using GPT, I could use it normally without any problem. I used gparted to format and create the partition table as ext4. Everything changed ...
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1answer
177 views

Deleted my previous linux partition and now getting stuck at grub boot prompt when i boot from usb/ use “ubuntu” option in bios/EFI boot menu

Let me tell you the full story. I had installed ubuntu and used it. Recently i wanted to use windows only (Windows 8.1) So, i deleted the linux partitions from the diskmgmt.msc in windows.I also used ...
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1answer
7k views

How can I check and change the partition table type?

New computers that ship with Windows 8 also come with a different partition table than before. This along with the move to UEFI causes confusion, as users are unaware of the newer partition table and ...
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1answer
117 views

Migrating Ubuntu from a MBR disk to a GPT disk (non-UEFI)

The question is: how to Migrate Ubuntu installed on a LVM Logical Volume with a separate boot partition from a MBR disk to a GPT disk on non-(U)EFI hardware without data loss to enable the usage of ...
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76 views

How to re-create the partition table?

I accidentally dd the first 512 bytes using dd if=/dev/zero of=/dev/sdb bs=512 count=1 and the partition table is now gone. Is there ANY way to re-create the partition table(/dev/sdb). My hard ...
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157 views

Installer hangs on “Detecting File Systems…”

I managed to completely screw up my system while trying to install Windows 8. I decided to reinstall and only format my / and /usr partition to keep my data. My installation is now hanging on ...
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1answer
3k views

Unable to mount a partition of external 3TB hard drive..GPT warning

My external HDD has five partitions and I am able to mount 4 partitions except one (labeled office) which is of 1TB and has all my backups. I am providing more information below fdisk -l Disk ...
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145 views

Problem with the installation on ubuntu 14.04 LTS

I had a computer running Windows7 and wanted to change to Ubuntu. So I installed the 14.04 LTS version and all seemed to have gone cool. (I'd like to make clear that I want just Ubuntu in the ...
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1answer
507 views

Two partition tables are unrecognized

While trying to installing Ubuntu 14.04 as my sole operating system, I've been encountering a number of issues (Described in more depth at Ubuntu 14.04 installation crashes with "???" ...
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1answer
5k views

Delete Ubuntu from dual boot Windows 8.1 in GPT disk [duplicate]

I'm using Windows dual booting with Ubuntu. I have uninstalled, and at that time my disk was formated as MBR. After deleting all partitions of Ubuntu I choose to rebuild the MBR in my disk. That way ...
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25 views

/dev/sdb contains GPT signatures, indicating that it has a GPT table. However, it does not have a valid fake msdos partition table, as it should [duplicate]

When I open gparted I get the following warning: /dev/sdb contains GPT signatures, indicating that it has a GPT table. However, it does not have a valid fake msdos partition table, as it should. ...
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2k views

Dual boot Windows 7 UEFI Raid with Ubuntu 14.04 Grub2 Problem

I used the intel Raid 0 to raid SSD #1 and #2 on raid 0 for video editing work, everything was good.I installed windows 7 64bit on an asus x79 deluxe motherboard on these raid 0 two ssds using ...
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1answer
195 views

Problem installing Ubuntu On Mbr disk Scheme not GPT

I'm having trouble installing Ubuntu on my Mbr disk scheme with windows 7 already installed on UEFI Legacy mode but when trying to manual specify partition for installation i found 3 more partitions ...
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2k views

How to fix “Warning: 0xEE partition doesn't start on sector 1. This can cause problems in some OSes.” [closed]

I was running fixparts to delete the stray GPT data. I got the following message Warning: 0xEE partition doesn't start on sector 1. This can cause problems in some OSes. How do I fix this? I ...
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121 views

Ubuntu and windows 8.1 dual boot gpt

I have Ubuntu 14.04 installed and I want to install windows8.1 . I have created a partition for windows . I have a separate boot partition but I heard I needed a EFI partition.I still have 300mb ...
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3answers
619 views

how to factory reset a usb?

How do you factory reset a usb? I have a hp 4gb usb that seems like it has a messed up partition table and ubuntu isn't recognizing all the space. I've tried formatting it in disks. That doesn't ...
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2answers
747 views

GPT talbe corrupt after RAID1 setup

So I'm completely new to Ubuntu and am trying to set up a backup/media server at home. I saw the guide on Lifehacker and figured I'd give it a try. My system is an i3 3225 on an Intel DH77DF mobo ...
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1answer
3k views

Unable to install Ubuntu 14.04 LTS on Sony VAIO T-Series laptop

I have a Sony VAIO T-Series (SVT15117CDS) laptop that came pre-installed with Windows 8. After having the computer for a while, I updated it to Windows 8.1. I now want to put Ubuntu 14.04 LTS onto the ...
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1answer
1k views

Completely messed up grub/efi/gpt dual boot

I seem to have almost entirely screwed up my machine. I was attempting to install an ubuntu liveusb to my external hdd, but in the process I messed up my internal setup. The external one works ;) ...
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3answers
121 views

how can I get rid of GPT if I want to install single boot Ubuntu

I have got my new laptop and want to install Ubuntu 14.04 on it(single boot system) from usb live disk. Since my disk is less than 1 TB, I want to have legacy boot and non-GPT partition. What can I do ...
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inconsistency in showing disk label

I've got my new laptop (thinkpad 440p) with windows 7.1 pre-installed and wanted to have single-boot ubuntu 14.04 on it. I wanted to change the disk partition table to "msdos" (legacy), so I change ...
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1answer
2k views

GParted claims whole hard drive is unallocated and gives warning about GPT table

For months I have been happily using my 3TB hard drive, and I still do. Today I discovered that GParted shows the whole drive (/dev/sdb) as being unallocated. The drive works fine though. Clicking for ...
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3answers
930 views

GPT partition scheme

I'm reinstalling my operating systems to use GPT and am willing to do it properly this time... I'm intending to use the following partition scheme: sda |-- sda1 500 MiB EFI |-- sda2 100 GiB Linux ...
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1answer
583 views

Reliable UEFI GPT multiboot environment creation for Ubuntu on Thinkpads

Dear Ubuntu community members, I am planning on a fresh multiboot installation environment which initially includes Ubuntu for general open software development, Windows 7 pro and later on maybe ...
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354 views

Install Windows 7 with Ubuntu in GPT UEFI mode

My computer is running Ubuntu on a disk in the markup GPT. Ubuntu runs mode UEFI (created FAT32 partition and boot loader was set there). Now I need to install Windows 7 as an alternative system for ...