master boot record (MBR)

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26
votes
1answer
18k views

What do I select for “GRUB install devices” after an update?

After running Update Manager, a debconf window (titled "Configuring grub-pc"), popped up, requiring me to select the appropriateGRUB install devices for my system. I've made no changes to grub or ...
15
votes
1answer
4k views

Can't boot into Windows 7 EFI GPT after recovery operation

My question, or rather issue, is in the extent of this previous case in which I wanted to grow my Linux (ext4) partition. The partition /dev/sda6 was in the way of doing this and since it contained ...
9
votes
5answers
89k views

How to boot into Windows 7 when grub is installed in the Windows partition?

Original title: How can i solve (un)booting windows 7 on the same partition with grub? I've been researching for 2/3 days about this problem and I have came up empty. Basically, partition 1 is ...
8
votes
2answers
2k views

How to dump disk sectors?

I want to see the content of the sector 0 (mbr) of my hard drive. It is possible?
7
votes
3answers
7k views

Windows missing from GRUB menu [duplicate]

When I turn on the computer, I can see the GRUB and boot into Ubuntu. But I can't boot into Windows because I don't see it in the GRUB. I have tried both boot-repair and sudo update-grub to no avail. ...
6
votes
2answers
23k views

How to manually fix a partition table ?

I recently had trouble with the MBR/partition table on my laptop. I managed to rebuild the partition table using testdisk, and install GRUB to get it booting properly again (I'm using a dual-boot with ...
6
votes
1answer
13k 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 ...
6
votes
3answers
948 views

Upgrade from 10.04 to 10.10 lost MBR

I think I've lost my MBR upgrading from ubuntu 10.04 to 10.10. During the upgrade it gave me a message saying which partitions did I want the grub details to go on, saying if I was unsure to select ...
6
votes
3answers
34k views

Fix Windows MBR using Ubuntu Live CD and ms-sys tool

I'm trying to fix the MBR using Ubuntu live CD. I already have the ms-sys installed but from the threads that I saw, I'm not completely sure in which /dev I should execute the command: sudo ms-sys ...
6
votes
2answers
10k views

Unable to install GRUB

Unfortunately (as you can see) I cannot install grub. I have tried /dev/sda as well. Here is my partitioning schema: Troubleshooting + problems: Installed Windows 8 to logical partition ...
5
votes
4answers
42k views

How to fix the MBR for Windows 7?

I have installed Ubuntu as dualboot with Windows 7. Now I'm no longer using Ubuntu so i removed the Ubuntu partition and added the unallocated space to my Windows 7 partition. But after I restart my ...
4
votes
1answer
3k views

Black screen ubuntu with 1234F:?

Ubuntu was up and running, my computer apparently got unplugged last night and died. I plugged it in and turned it on. My screen is all black with 1234F:. When I type a letter, number, or press enter ...
3
votes
2answers
102 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 ...
3
votes
1answer
243 views

Where to put the MBR

I have 2 separate HDDs - one has Win7 and the other has Ubuntu 11.04. When I installed Ubuntu I placed the GRUB/MBR on the partition, not the device, is this why it will not boot into Ubuntu? Can I ...
3
votes
3answers
2k views

How to make a USB drive bootable after live image is copied into it using `dd` command?

I was unable to create live USB drive using dd command while unetbootin works. The former method used to work fine on the particular USB Drive. Is the USB drive filesystem corrupted? If yes, how do I ...
3
votes
2answers
2k views

How to recover Ubuntu installed with Wubi with corrupted GRUB

I have ubuntu installed inside Windows 7 using Wubi. Yesterday, I tried installing Ubuntu using GRUB but it seem that GRUB was corrupted. To recover, I fixed the MBR using the Windows 7 CD. Now ...
2
votes
2answers
20k views

How to fix MBR partition prior to Ubuntu Installation? A partition overlaps GPT backup sectors

My main problem is that i have just acquired an ASUS laptop with WINDOWS 7 and I want to install Ubuntu on it. I want to have a dual boot to choose between both Operating systems, I read that it's ...
2
votes
2answers
1k views

3TB HDD and legacy BIOS

I have new 3TB HDD and motherboard with legacy BIOS. To take advantage of full HDD capacity I have to use GPT partition table. I want to dual-boot Windows 8.1 and Ubuntu 13.10 (64-bit) from this HDD. ...
2
votes
3answers
1k views

Windows Vista disappeared after installing Ubuntu10.10?

I had Windows Vista Ultimate SP2 160 GB HDD, 1GB RAM,INTEL DUAL CORE One of my friend told that UBUNTU is also a better OS and is an open source programme and u can use alternately both Ubuntu or ...
2
votes
2answers
897 views

Can I cancel dd command and rebuild partition table?

I am attempting to fix the partition table on a 1 TB hard drive. GParted on my live disk sees the drive as being "2 TiB"... It is clearly labelled as 1 TB on the outside. I started a low level ...
2
votes
1answer
196 views

where did my 766 kb in partition go?

I used fdisk -l and saw this. Disk /dev/sda: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size ...
2
votes
1answer
1k views

GPTsync mismatch problem

I have a hybrid disk. After trying to copy some files from another disk to this one, I lost my OSX and Ubuntu boot capability. Ran gptsync and got: Current GPT partition table: # Start LBA ...
2
votes
5answers
7k views

Windows 7 won't boot after Ubuntu 12.04 dual boot installation failed

I basically used a LIVEusb I had made of Ubuntu 12.04 to try and dual boot both OS'. but it crashed at the partitioning stage and now Windows 7 won't boot. g Parted shows the same partitions that ...
2
votes
5answers
4k views

GRUB boot into Windows 7 breaks GRUB and makes system unbootable

I have installed Ubuntu 12.04 (daily-live iso from 21.04.12) alongside Windows 7 on an HP EliteBook laptop. The installation went fine, except that it installed grub onto my usb disk (/dev/sdb) ...
2
votes
1answer
5k views

Windows 8.1 not appearing in Grub2 after installing ubuntu 14.04

I have HP notebook which came with freeDOS (MBR partitioned with two primary partitions). I have installed Windows 8.1 in Legacy mode by creating another primary partition. Yes, in Legacy mode though ...
2
votes
1answer
639 views

How do I turn my USB into a bootable device? [duplicate]

So, I messed up my windows 7 boot loader, and I'm trying to change my USB so that I can use it as you would use the Windows Recovery disk. I have the .iso for the recovery disk and I've changed the ...
2
votes
1answer
210 views

Grub2 detects Windows 8 instead of 7

I earlier had Windows 7 installed on my laptop...then installed Windows 8 with dual boot setup on a different partition. Then I didnt like windows 8 so much and decided it to replace with ubuntu ...
2
votes
2answers
11k views

How do I install 12.10 on a Pavilion-G6 laptop with UEFI

I have a brand new HP Pavilion-G6 which boots to pre-loaded Windows8 and I want to change the machine to boot up into Ubuntu 12.10 whist retaining Windows 8. I am having difficulty booting into ...
2
votes
1answer
153 views

Partitions mixing up

I am trying to install ubuntu alongside my windows 7. The problem is that ubuntu is not detecting all of my partitions and basically clubs together many of them. The same thing is done by using ...
2
votes
1answer
3k views

GRUB Drops to Rescue Shell - Fix MBR and Windows Bootloader

I shall just give a bit of background information. I updated a broken Ubuntu installation to Oneiric from the live CD a while ago, and everything appeared to be working fine. Because I don't use the ...
2
votes
1answer
2k views

Cannot install burg: error during installation

I tried to install burg and I got an error. I've used the following commands: sudo add-apt-repository ppa:n-muench/burg sudo apt-get update && sudo apt-get install sudo apt-get install burg ...
2
votes
0answers
49 views

Windows 10 and Grub not working properly

I recently decided to test Winodows 10 on my HP dv6 laptop with Ubuntu 14 installed. I was able to get Windows up and running without any problems but getting Ubuntu and Windows to boot properly has ...
2
votes
0answers
79 views

Does the Ubuntu installer create a hybrid MBR partition table on EFI systems?

I have a MacBook Air that previously ran Fedora with a dual-boot Windows side for a few engineering tools. I recently switched back to Ubuntu, installing Ubuntu over Fedora using the same EFI boot ...
2
votes
1answer
714 views

Installing on a MSI GS60 2QD - Bootloader and wifi drivers question

I just bought myself a new laptop, the MSI GS60 2QD Ghost. It comes with Windows 8.1 pre installed and the new UEFI software instead of the old BIOS. I've read a lot of threads about how to set up ...
2
votes
0answers
84 views

How do I remove an entry from Windows Boot Manager through Lubuntu

So I have a laptop that I got through work: it had one half of the HDD partitioned to their own version of Windows Enterprise (so no cmd unless you have admin rights) and the other half partitioned to ...
2
votes
0answers
2k views

Remove the additional entries in grub [duplicate]

I was trying to get a dual-boot set up with Windows 8 and Ubuntu 13.04. After installing Ubuntu, it wouldn't let me go back into Windows 8. So I ran boot-repair and it fixed it self. Now I have all ...
2
votes
5answers
651 views

Windows 7 and Ubuntu Boot issue

I had the idea to dual boot Win 7 and Ubuntu and what I did was the following: Made a clean install of win 7 using all of my hard drive, next I used the Ubuntu live cd and gparted to partition my ...
2
votes
5answers
2k views

Install Ubuntu to hard disk without overwriting mbr?

What's the best way to install Ubuntu without putting GRUB on the MBR? I would think I can install to another partition (logical?), and then install GRUB on a bootable USB. When I want to boot to ...
2
votes
0answers
64 views

Partition table BSD

I messed up the partition table of my HDD and i guess now its in the BSD format and windows/ubuntu both cannot read it. Does this mean I need to format my HDD and lose my entire file system or is ...
2
votes
2answers
5k views

What is the best way to dual-boot Windows and Ubuntu? [closed]

I have recently installed Ubuntu 12.04 in dual-boot with windows 7 but I am having some problems. I installed GRUB in the MBR (as it is often recommended) and so GRUB was the boot-loader that appeared ...
1
vote
4answers
3k views

Grub installation and Dell recovery partition

I'd like to install Ubuntu 10.04 on a brand new Dell vostro v130. Dell notebooks usually come with a recovery partition, which allows you to restore the original Windows configuration of the notebook. ...
1
vote
2answers
2k views

Convert from EFI to BIOS boot

I have a Samsung Notebook NP900X4C with an LUKS encrypted installation of Linux Mint 15 on it. The system is booting in UEFI mode. The problem is that the samsung-notebook kernel module is disabled ...
1
vote
2answers
1k views

Install Ubuntu 14.04.1 LTS without losing Windows 7 bootloader

I want to install Ubuntu 14.04.1 LTS alongside with Windows 7. But there is one issue that if I install Ubuntu, I will lose Windows 7 bootloader and it will replace GRUB bootloader instead of ...
1
vote
2answers
3k views

Accidentally partitioned drive from MBR to GUID

[SOLVED] Thanks everybody, the MBR schema now is restored via TestDisk, and thanks to the author for this piece of software. I wanted to format only my Data (NTFS) partition for a fresh start. But I ...
1
vote
2answers
1k views

How to fix my MBR? While installing random Ubuntu my MBR is not getting overwritten anymore

I boot with liveUSB. But how do i fix now my MBR, so that i can re-install Ubuntu? (after installing ubuntu i get mostly this blinking cursor and black screen) root@ubuntu:~# fdisk -l Disk /dev/sda: ...
1
vote
1answer
34 views

recover filesystem from nuked hard drive

OK, I'll admit it, it was a dumb thing to do. I was using dd to copy a disk image onto an SD card for a Raspberry PI, but managed to copy the image onto /dev/sda instead of /dev/sdc. Problem now is, ...
1
vote
1answer
96 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 ...
1
vote
1answer
618 views

installation ubunto 14.01 on a different partition with windows 8.1

Please assist me. I am eager to install Ubunto 14.01 on a different partition but I do not know how to do it. I have HP with windows 7 pre-installed then I upgraded to windows 8.1 please show me how ...
1
vote
2answers
2k views

ubuntu 14.04 install doesn't boot but but displays read error

I am aware that similar questions have been posed already, but after several tries, I still haven't found a solution. Any help is much appreciated. I have installed Ubuntu 14.04 on my new thinkpad x1 ...
1
vote
1answer
53 views

Why does the MBR return a different offset than Ubuntu's commands?

~$ sudo /sbin/fdisk -l /dev/sda | grep sda[0-9] /dev/sda1 * 2048 234133503 117065728 83 Linux /dev/sda2 234135550 250068991 7966721 5 Extended /dev/sda5 ...