Questions tagged [mbr]

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Cannot boot (any more) from MBR SSD drive even if legacy BIOS is enabled

The situation is simple to describe in fact: A MBR-partitioned Kingston SSD of 1TB containing Windows 10 and Kubuntu was moved to a new (HP) laptop: in order to boot there, legacy support had to be ...
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A Debian 10 UEFI disk and another Debian 10 MBR disk are on the same computer with NO dual-boot. Can I then select any disk in the BIOS to boot on it?

A reseller is creating a new computer for me. It will have an UEFI Debian 10 on it. He will also add an old MBR Debian 10 disk on it, I will provide to him. This disk is only here to ensure that I'm ...
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init unable to find root device on computer in restoration

I'm a bit out of solution on this one : I am restoring an old computer (15 years old...), which was running archlinux. I have inadvertently erased the pacman package database (and all /var ...), and I ...
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1answer
12 views

Clarification onMaster boot record size limitation

I am reading up a bit on Master Boot Record layout and I was particularly interested in how the partition layout causes a size limitation on the size of the storage that can be used on a device with ...
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Issue with MBR / Grub

Some issue with my hard disk -- when mounted inside the laptop, the system is booting into a black screen. Even when I change the boot preference to boot with a usb stick, its still getting stuck at ...
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62 views

System boots with MBR, but not with GPT

I have a Linux image made with Yocto that boots on a Pocketbeagle. For the learning experience, I'm trying to move it to using GPT. For MBR, I am using the following beaglebone-yocto.wks description: ...
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48 views

Linux boot process

OS: GNU + Linux Boot partition: /dev/sda1 After the MBR makes its decision on which is the active partition (boot partition), it gives control to the Kernel Boot Loader, generally GRUB, to load the ...
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create partition error manjaro installer

I am installing Manjaro with dual boot Windows 10. I created a '/' partition and a swap partition from a 200 GB unallocated space. When I hit install, it shows an error and fails to create partitions. ...
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103 views

GPT to MBR: gdisk overlap

I have a 256GB NVMe SSD drive and this is other system drive, which my friend converted from MBR to GTP. This is my output. I used gdisk to convert GPT to MBR, but I have a problem. Problem: MBR ...
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2answers
57 views

How can I properly install Debian on a laptop that used to have windows? (There is probably a problem with MBR)

I recently broke the screen of my Lenovo Ideapad 110S-11IBR, so I decided to use it as a NAS device. After I tried to install a Debian-based NAS operating system I ran into a problem: Even though the ...
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Problems dual booting - W2019 Server, CentOS, rufus, Dell Studio 1557

I have an oldish Dell Studio 1557 laptop (decent enough - 1TB Samsung SSD, 8GB RAM) on which I've installed Windows Server 2019 Standard from an .iso. I only used about 350GB for the Windows install. ...
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1answer
77 views

Can I mount a gpt disk with ntfs partition on an mbr booted linux system

System: Linux Mint 20 x64 cinnamon booted on mbr formatted disk. I inserted a new hdd containing a gpt and a ntfs partition (next to a small MSR partition, which doesn't matter here I guess). GParted ...
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installed debian in a multi hard disks environment but when I restart I get “operating system missing” message

I have 4 hard disks installed: ssd with windows; hd with other stuffs; hd 1TB where I installed debian; hd with windows home. I installed debian in the third hd, creating 3 partitions inside it: ...
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1answer
44 views

How do I start a Windows 10 partition on a MBR partitioned disk on a system that otherwise uses GPT/UEFI GRUB?

Okay, let me explain. This is a UEFI computer. It has two disks. The primary disk is partitioned with GPT and boots via GRUB2 to an Arch Linux partition. The secondary disk is partitioned with MBR and ...
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1answer
52 views

Need help restoring a corrupted folder

I have a mechanical hard drive that I was trying to access files on. I bought a cheap SATA to USB adapter. Said adapter was underpowered, and I could hear the platter revving up and down. I made the ...
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1answer
135 views

Problems with dual boot in an old pc (pentium 4) without UEFI

I write all of you because I have expended two weks trying to solve this problem, I have seen a lot of youtube videos and read a lot of forums but I cannot fix this. I want to clarify that I'm only a ...
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1answer
39 views

How can I boot from that ntfs file?

I have file system called *.ntfs, I ran the file program on this file to get information about it, and here is the output: DOS/MBR boot sector... I want to boot from that file system file, how can I ...
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1answer
496 views

Linux live USB - Why does ISO 9660 partition cover the entire USB stick?

I've been examining the Ubuntu 20.04 and Fedora 32 live images, and saw that the first (ISO 9660) partition is set to cover the entire image (at least on the MBR's partition table, didn't check GPT ...
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72 views

Remove grub from boot sector

I use Coreboot. Meaning I use SeaBIOS to boot my computer. I use FDE (I don't have /boot in my compute hard drive, instead i have it in a USB). When SeaBIOS can't boot from a device, fallback to ...
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1answer
68 views

Cant make use of grub-mkimage

I am trying to create portable grub mbr with grub-mkimage to chainload as bootsector from windows. But when booting I get stuck at a black screen with bold "GRUB" and blinking curser. No key ...
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104 views

Command to list partition type codes in deb and rpm distributions for MBR and GPT

Is there any command to list all partition type codes recognizable by currently installed distribution (In my case Ubuntu 18.04.03 LTS) I know the following website exists Andries E. Brouwer 1995-2002 ...
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204 views

Can a disk partition have another nested inside it?

I am trying to better understand disks, partitions, and partition tables (mbr vs gpt). In the process I checked the disks on one of my machines (single boot ubuntu 20.04), and found that all of my ...
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1answer
35 views

Accidentally modified MBR; can't boot to Linux anymore

I'm a dual boot user running Windows 10 and Kali linux. I rebuild the MBR by mistake using partition wizard. Now I lost access to my linux I lost swap area menu but I still have the partition I tried ...
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1answer
1k views

Legacy bootable usb with win10 - linux mint

I have ssd and hdd. Both use mbr scheme. On my ssd I have mint and it is running well. I want to dual boot and install win10 on hdd but I have problem creating legacy bootable usb with win10 using ...
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1answer
212 views

Using dd to restore a partition backup from MBR disk to GPT one

I have an ext4 partition backed up with dd on a MBR hard drive that I would like to restore to a new GPT hard drive. Can I just create an empty partition of the exact same size on that new GPT drive ...
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3answers
534 views

Shrink FreeBSD partition

I have an img (made with dd) of a FreeBSD installation on a 1TB HD. This time i need to use a smaller disk (500GB), and of course if I try just to restore the same image it won't work, but even if I ...
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2answers
71 views

Transferring Grub on MBR connection to different Linux distribution

I had a Linux distribution which had installed grub on MBR. Then I installed second Linux distribtion on a different partition but did not install grub in it. Then I went to first Linux distribution ...
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451 views

Any known install iso images using MBR partition and BIOS only installer?

I have a legacy BIOS motherboard which has broken USB-HDD boot capability. The manufacturer has stopped supporting it a long time ago although I subsequently obtained a slightly newer BIOS image and ...
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1answer
200 views

MBR and bootstrap explanation for different size disk copy

I wish to clone a 500gb MBR source disk to a 250gb MBR destination disk manually by making each corresponding partition on the destination disk and restoring just the data contents of each. This way, ...
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1answer
728 views

UEFI booting using live USB media used for MBR legacy booting

To create a UEFI live USB (running Ubuntu if that matters), my understanding is that the simplest method is to create a FAT32 partition and copy the files from the last ISO there. I would also have to ...
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Boot from grub2.cfg an other bootloader… in same disk

In my USB multiboot i have installed grub2 and edit the first file grub.cfg... now, have created an second partition with an other iso(dd if=file.iso of=/dev/2)...The second iso then created the MBR ...
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1answer
507 views

Grub menu taking too long to appear [closed]

I am using Windows 10, Ubuntu and Debian 10 in my machine. Everything was fine untill some Debian update (or so as I think). Now when i restart my system only a underscore is displayed on my screen ...
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1answer
618 views

Grub: install only the MBR parts, not the boot directory?

It seems as though I always have to install files to a --boot-directory when using grub-install. What if I already have existing grub files in /boot on my partitions? Shouldn't I just need to ...
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1k views

Install Debian 10 on a system which have both GPT and MBR

I have a notebook which has two drives: one is an SSD and the other is an HDD. It also currently has both Windows 10 (SSD) and Windows 7 (HDD): I want to remove Windows 7 and install Debian 10. As I'd ...
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31 views

In a dual-boot system, what decides which MBR bootstraping code is used?

I am reading an article titled How Computers Boot Up. In it, it suggests that a Master Boot Record (MBR) consists of "a tiny OS-specific bootstrapping program at the start of the MBR followed by a ...
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1answer
57 views

How to bind hard disks to /dev/sd* names statically?

Maybe it's an XY Problem, so here's a full situation: We have lots of servers now which will be used as storage/databases. All of them have similar setup: SSD drive for OS (Ubuntu 18.04.2 LTS) and 6 ...
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2answers
637 views

How does BIOS bootloader know which disk to use?

As I understand it, the GRUB bootloader on a BIOS system (and most other bootloaders for that matter) are comprised of 3 parts. The first part (stage 1) is stored in the first 448 bytes, which is ...
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1answer
61 views

Whether one physical disk only can have one MBR sector? [closed]

Whether one physical disk only can have one MBR sector? If a disk is bootable disk, the first sector of it is MBR sector. So, is this mean one physical disk only can have one MBR sector, right? ...
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1answer
1k views

Recovering lost partition table with TestDisk

So, somehow the partition table on my disk went bananas: at the next boot the system would not start, I got repeatedly kicked in the BIOS and I had no viable boot options. The BIOS still detected the ...
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2answers
588 views

How to determine if a PC has a combination of GPT disk and legacy BIOS boot, where the boot code is read from the MBR?

In a comment, Johan wrote: In the rare combination GPT disk + legacy BIOS boot, the boot code is read in the old-fasioned way from the MBR What is the proper way to determine if a PC has the ...
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1answer
18 views

Is it possible to find boundaries of a Solaris2 partition after MBR corruption?

I had disk with 4 primary partition on it with MBR (/dev/sda): - the first had a NTFS filesystem, with data (/dev/sda1); - the second was a Solaris2 partition, with openindiana (/dev/sda2 on GNU/Linux ...
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1answer
316 views

Linux not booting

I have build my linux image with elbe linux build. This produces an image which can be copied to a filestorage and can be run. This works well if I use the output image and copy it with "dd"-command ...
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1answer
2k views

What do the partition table types and flags mean in the output of parted?

In the output of sudo parted -l: Model: WD My Passport 0748 (scsi) Disk /dev/sdb: 1000GB Sector size (logical/physical): 512B/512B Partition Table: msdos Disk Flags: Number Start End Size ...
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1answer
54 views

In GPT, can a partition be partitioned further into partitions?

I heard that GPT makes MBR's distinction between primary partition, logical partition, and extended partition disappear. In GPT, can a partition be partitioned further into partitions, in the same ...
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2answers
45 views

Partition recovered

Partitions MBR has been destroyed accidentally by a friend, Then most partitions are unviewable which is too bad, can all the partitions be recovered? I have a text file including the original ...
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1answer
595 views

Significance of /sys/block/sd*/sd*/size

Disk size /sys/block/sda/size is always correct but the partition size /sys/block/sda/sda2/size is not correct if the partition type is extended, boot, etc, due to this I rely on reading MBR to get ...
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1answer
366 views

Installation and booting scenarios for combinations of boot sector (GPT or MBR), firmware (BIOS or UEFI)?

I think all the confusions in this post come from coexistence of old and new technologies and abuse of terminology such as mentioned in https://en.wikipedia.org/wiki/...
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1answer
79 views

What is a generic name for the sector which stores the partition table of a disk?

If a disk uses GPT partitioning method, is its first sector still called MBR? What is a generic name for the sector which stores the partition table of a disk? Thanks.
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1answer
505 views

Want MBR install of Mint 19.1

There's a video driver problem with GPT, the Apple A1286 Mid-2010 MacBook Pro machines, and NVIDIA GT330M drivers, and running Nouveau has its own problems, so I want to install Cinnamon Mint 19.1 ...
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0answers
74 views

Steps to Boot Linux from USB on Windows 10/Linux Dual Install [closed]

I'm interested in a high-level view of booting Linux from a partition separate from Windows using a USB bootloader. My work computer must have Windows 10 on it because of company policy. IT is ...