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9 views

Arch Linux: GRUB does not load after installation

I have installed windows 10 in my laptop in BIOS Legacy mode.I have 3 primary partitions including the Windows partition and have extended partition with 2 more logical partitions. Now for installing ...
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1answer
22 views

GRUB rescue mode - where does it live?

My understanding is that when I install GRUB, a primary OS loader gets written to the MBR and a secondary OS loader (the bulk of GRUB) gets written to some other partition. In normal operation, the ...
0
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1answer
20 views

install grub but no booting

I'm having trouble installing grub. I used to have a UEFI boot setup but it constantly failed so I decided to use normal boot instead. Unfortunately, the system doesnt boot into grub. What I did ...
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0answers
97 views

Kali linux doesn't detect my hard drive partitions

I wanted to install Kali Linux on my computer that is currently running windows 7 64bits, so i created a 200Gb free partition, I made an installation USB key, and everything was running perfectly ...
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2answers
50 views

How to back up a MBR

Has anyone tried updating to Windows 10 on a dual boot machine? I'm concerned that Windows 10 might mess with the MBR. Is there a way to preserve the MBR and easily restore it if Windows in fact ...
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2answers
103 views

How to construct a GPT-only partition table on Linux?

All of the tools I've tried until now were only capable to create a dual (GPT & MBR) partition table, where the first 4 of the GPT partitions were mirrored to a compatible MBR partition. This is ...
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0answers
45 views

Dual booting Ubuntu and windows 7

I am trying to dual boot windows and linux on a machine at work. While I haven't used windows in a while, Its a process that used to work most of the time.But I haven't been that lucky with this ...
0
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2answers
57 views

Advantage of GPT over MBR partition table [closed]

What is the advantage GPT partitioned hard drives on older BIOS system ? when boot drive is bellow 2TB on a BIOS system or UEFI boot disabled grub on BIOS system with GPT partitioned needs an ...
3
votes
1answer
121 views

Can't format HDDs and install linux to Dell hybrid ultrabook

I've tried installing OpenSUSE 13.2, Debian 8/8.1 and Ubuntu 15.04 (all them amd64). Debian/Ubuntu won't show disks and OpenSUSE can't format the partitions created on them. During the install, ...
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0answers
167 views

“Warning! Secondary partition overlaps the last partition by x blocks” in gdisk, is it safe to use gdisk here?

I'm trying to install convert my hard drive into GPT using gdisk, when I run sudo gdisk /deve/disk1s4 I get this: Warning! Secondary partition table overlaps the last partition by 2032668853 blocks! ...
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1answer
62 views

How to set MBR to Linux Partition instead of GRUB

I have a Linux Mint 17.1 Partition at /dev/sda1 and another Mint 17.1 Partition at /dev/sda5. How do I set the MBR to boot into /dev/sda1 instead of the GRUB menu? I know how to use GParted to delete ...
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0answers
11 views

Problems MBR and GPT Partitions on a Linux Host on SLPOS

Ive a Host loaded with SLPOS Image from a SLPOS Branch Server (SuSE Linux Point Of Service) and i want to handle this issue, when system boots it download a PXE who does a check of a several checks ...
2
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1answer
68 views

How to reduce ext4 rootlv on centos 6

Is there a way to perform a safe reduce in rootlv at rescue mode? Most of the internet's explanations tells, basically, that it can be done using the following steps sequence: vgchange; fsck; ...
1
vote
1answer
124 views

Remove all traces of GPT disk label

I've got an USB pen drive and I'd like to turn it into a bootable MBR device. However, at some point in its history, that device had a GPT on it, and I can't seem to get rid of that. Even after I ran ...
1
vote
1answer
49 views

OSX: MBP: How does system detect sd card inserted?

I have a MacBookPro running Mavericks. I can insert one sd card into the slot and it mounts just fine. Another sd card I slip in and nothing happens. It does not appear in disk utility. It does ...
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0answers
76 views

Change default OS loading

Installed Ubuntu 12.04 Feb 2014 - upgraded to 14.04LTS. I believe there is still remnants of older OS's still there somewhere, (they appear on the Grub multi-boot menu at start up). An earlier ...
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0answers
71 views

Accidentally installed BIOS/MBR on GPT/UEFI

Quite some time ago, I installed a Linux system on my moms laptop. And just recently I noticed I have installed and partitioned (with fdisk) a BIOS/MBR on a system, that already has UEFI. The machine ...
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0answers
41 views

What are the [internal] steps involved in making USB drive 'bootable'?

Whenever I have to install a new Linux distro, I create a bootable USB from the distro image using some specialized program like UNetBootin. Recently, I tried to do for Fedora using 'dd' command, but ...
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2answers
36 views

MBR and data on pendrive

I have a pendrive (/dev/sdd). I ran fdisk -l and that shows me the drive and its partitions. After that I did: dd if=/dev/zero of=/dev/sdd bs=512 count=1 I deleted the MBR (so the partitions ...
0
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1answer
259 views

unbootable usb stick “Non-system disk or disk error”

All, I have a USB stick that used to boot fine. I thought I'd reuse it. Reformatted it, copied some files over, and now it won't boot. I've used "lilo -M /dev/sdc mbr" with no luck. Note that the ...
0
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2answers
42 views

Is my server still using a grub-legacy (GRUB 1) MBR?

When Debian updated to GRUB 2 (package grub-pc), it didn't automatically upgrade the MBR. Instead it configured the old GRUB 1 installation so that it will chainload GRUB 2; that way administrators ...
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0answers
88 views

Debian Encrypted LVM on USB - broken grub - how to recover?

I've upgraded my Debian wheezy system that was booted from an external USB HDD with the usual apt-get dist-upgrade and after reboot I got "RUB Loading" "welcome to grub!" "Error: file not found". ...
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0answers
35 views

Dual-boot ends with Dual-Bootloaders

Having just bought a new laptop out of necessity, and ending up with Windows 8.1, because I work from home and the company only supports windows, and the identical 7 machine was almost $100 more than ...
0
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1answer
56 views

Backup and then wipe partition table from head of drive

I have a NTFS hard drive internally attached to my computer and it's causing problems with the other Windows installation on my dual (or triple?) boot machine. I'm not sure if the partition scheme is ...
2
votes
1answer
4k views

Creating EFI bootable GPT partition with gdisk on previous MBR, GPT Damaged

So this is a sister question to my previous one about partitioning for a UEFI boot loader. Parititioning for a UEFI boot loader, can LVM be used? Disclaimer: I don't give a flip about the data on ...
0
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1answer
30 views

MBR not corresponding to fdisk -l?

I'm trying to map the shown with sudo fdisk -l and what is written in the MBR. However they seem to differ. What fdisk shows: Device Boot Start End Blocks Id System /dev/sda1 ...
2
votes
2answers
219 views

Transforming a disk from MBR to GPT

I have a disk with classic MBR and want to transform it to use GPT without data loss. I have seen several more or less useful tutorials, but most of them are dealing with the specific problems related ...
2
votes
2answers
2k views

How to dual boot PC-BSD 10.3 (with zfs file system) and debian 7 (crunchbang) using grub2 boot loader in MBR?

I want to dual boot PC-BSD 10.3 with ZFS as the root file system (the only file system) with Debian 7 (crunchbang linux) with ext4 using grub2 boot loader installed in MBR and grub is managed by the ...
1
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1answer
105 views

hexedit: change number of columns (bytes per line)

I am using hexedit to show/edit disk MBR (512 Bytes, copied with dd). When I open the file, hexedit displays the file as 9 columns, 4 bytes per column (36 bytes per line). That is very unfortunate. I ...
1
vote
1answer
859 views

Understanding syslinux and partitioning

I am trying to learn and especially understand how partitionning and boot-loaders work. The problem is that I got it all twisted in my mind. In the end I don't understand anything anymore. I know ...
0
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0answers
24 views

Recovering windows boot files to pendrive

Here's my problem, i recently installed linux mint on my laptop so now i don't have to use it on my gaming pc. However when burn windows image on pendrive and try to boot it i only get a grub recovery ...
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0answers
76 views

Two fdisks seeing different MBRs on same external drive (OpenBSD 4.2/5.5)

I'm trying to use an external USB hard drive to copy data between a legacy production OpenBSD 4.2 system (on a slow, fragile network — that's not an option) and a new OpenBSD 5.5 box, and I'm running ...
2
votes
1answer
2k views

How to move GRUB installation to a different partition?

I have a laptop for work. I originally had Windows 7 on it then I installed Linux Mint 17 to dual boot. During my installation of Mint 17 I accidentally installed GRUB on the wrong partition (sda2). ...
0
votes
1answer
166 views

If MBR is broken, how to fix on RAID + LUKS encryption?

Problem: After HDD failure in a Software-Raid Mirror Debian does not boot. Only black screen with blinking _ Debian Setup: Within the raid I have a complete system encryption with luks. I am not ...
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1answer
2k views

How to install after windows 8.1 with MBR partition

I have a laptop, which has a 500GB hard disk and with MBR partition, and I install my windows8.1 on it, but I left ~75G unused which I would like to use it for OpenSuse13.1. Now I have 2 USB, one is ...
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2answers
2k views

Installing GRUB in a dual-boot

I've just installed my OSes on a new HDD: Windows 7 and Debian 7. As usual I first installed Windows, then Debian. At the first attempt, GRUB seems to not have been installed properly, because my ...
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votes
3answers
420 views

How to create MBR partition /dev/ nodes FreeBSD for mounting

I currently have FreeBSD version FreeBSD 10.0-RELEASE. Installed using a ZFS root. I'm attempting to mount a MBR partitioned drive but I can't get the partition nodes, /dev/ada4p1, etc. The partitions ...
1
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1answer
144 views

Grub2 on wiped MBR

I'm trying to test grub2 on puppet in a VM and one of the tests is to make sure it'll still work on a wiped MBR. So I wipe the MBR with dd if=/dev/zero of=/dev/vda bs=512 count=1 Then I try to ...
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5answers
18k 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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2answers
200 views

What information is stored on the gap before the first partition?

Partitioning tools(for example fdisk) tend to leave a 2047 sector(LBA 1-2047, 1048064 bytes) between the MBR and first partition. On LBA 0 there is a MBR and from LBA 2048 starts the first partition. ...
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2answers
80 views

Is there a way to boot linux directly from MBR?

Inspired by UEFI, I want to skip the stage of the bootloader (grub, lilo, syslinux) and boot linux directly. Is this possible? Cant I just boot the kernel directly, or have a minimalistic bootloader ...
1
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0answers
37 views

For what are disk signatures being used for by GNU/Linux (distributions) / grub?

I am talking about disk signatures in context of the MBR. The area from 441 to 445 bytes. For what does the GNU/Linux kernel, GNU/Linux distributions usually use disk signatures for? I only found ...
3
votes
2answers
4k views

Copy MBR and boot partition to a smaller disk

I'm using a 32GB SD card for my raspberry pi. I have successfully transferred the operating system (Archlinux ARM) to a usb harddrive. Which means that I only need the boot partition on the SD card. ...
1
vote
1answer
307 views

How to change the disk signature of a raw image?

I am talking about disk signatures in context of the MBR. The area from 440 to 444 bytes. Let's say I got a bootable raw image (bootable in a virtual machine). How can I set the disk signature to a ...
2
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2answers
182 views

How does system know where the first logical disk starts?

I'm trying to understand the ms-dos partition table, and there's the following diagram: It comes from this site. Almost everything is pretty clear to me, but there's one thing I don't get. As you ...
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1answer
1k views

How to boot FreeBSD system with broken bootcode?

I have an HDD (or SSD, or flash drive) with FreeBSD installed on it, and somehow I broke the bootcode (first 446 bytes of MBR). How could I boot into this FreeBSD?
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1answer
1k views

Overwritten MBR: Is partial/complete recovery possible?

I have a Sony VIAO laptop setup as dual boot (Ubuntu 12.10/Windows 7). Since I wanted to try Archlinux, I installed VirtualBox in Ubuntu. To create a bootable USB stick (from the ISO image on my hard ...
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3answers
2k views

Recover Windows partition in a GPT disk (previously MBR)

I have tried installing Arch Linux and what I ended up with was a partition scheme like this: /dev/sda: /dev/sda1 NTFS partition (Windows 7) /dev/sda2 ext4 (Arch) /dev/sda3 swap I don't know ...
3
votes
2answers
330 views

Copying OS from one drive to another migrating from MBR to GPT - what to watch out for?

I'm looking at replacing my current MBR-partitioned 2 TB system drive with quite possibly a 3 TB drive. Copying the files should not pose a problem, but are there any gotchas to watch out for, ...
0
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1answer
347 views

Is this the right way to uninstall Fedora from a dual-boot system?

I'm using fedora 18 side by side Windows 7 and i want to remove fedora. I'm going to that by deleting the fedora partitions from Windows 7. PS: when i installed in the first place fedora, I didn't ...