Questions tagged [bootloader]

A bootloader is a program that loads and launches a program or an operating system from boot.

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Need to boot an Efi Windows file from GRUB

here is my case. I have a bangho tablet with x64 cpu but it came with Windows 10 32 bit installed, I thought, well, let's go for the 64 bit version and problem solved. Well.. I went for the efi boot ...
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Blackarch linux boot error on grub

I came across an error after installing blackarch linux from live iso. Grub bootloader says filesystem unknown. I was able to use these commands and boot to another linux that i had installed: Set ...
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Win10 error booting when Win7 instaled on second ssd

I've unplugged main SSD with Windows10 and installed Windows7 on secondary on board SSD. When I plugged in main SSD, Windows10 failed to boot. It runs disk checker over and over. I've even deleted ...
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Why Windows 10 Boot Manager can't load Windows Vista?

I had a Windows Vista/7 dual boot set up in UEFI, GPT mode (i.e using the EFI system partition to boot). The Windows Boot Manager would let me select between 7 and Vista, and both OS's worked fine. ...
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Windows 10 USB installer bootloop

Bear with me here because I am new to posting on forums. A couple months ago I made a ryzentosh using the amd-osx vanilla guide. I set it up so that Mac os used a 1tb nvme ssd and windows 10 used a ...
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Move the bootloader to the drive with the system root

My windows 10 installation is on (C:) drive ("Boot" label), however the Boot Loader ("System" label) resides on another disk (F:). Here is the Disk Management: Is there a safe way to move the Boot ...
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I'd like to create a kexec-able GRUB2 file, is this possible?

Back when GRUB4DOS was a thing, it was possible to kexec into its .exe. I'd like to have similar functionality for GRUB2. I did find GRUB2WIN, but that is just a regular .exe and kexec returns an ...
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Make an internal NVME drive bootable

I’m installing UEFI arch Linux using a live usb on a NVMe-drive laptop. I got up until disk partitioning when I saw that I could not flag any partitions in the NVME drive as bootable. The only ...
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I deleted my efi storage and I can't boot up my operating system [closed]

I was installing fedora 32 and I deleted my efi storage after that I am unable to boot up my OS and it only shows black screen after I turned on the PC.
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Grub does not detect windows 10 efi boot files

I recently installed lubuntu on new partition, and in doing so, I formatted the efi partition to FAT32. Now I want to boot into Windows 10, but none of the usual recovery methods have worked for me - ...
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Do bootloaders keep running?

In this question, I'm considering both Windows (BOOTMGR) and Linux (GRUB) bootloaders as well as BIOS and EFI modes. Once a bootloader has invoked a kernel, does the bootloader keep running in any ...
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How does BIOS or any other firmware communicate with a storage device in order to achieve the first-stage boot loader goals?

When booting, the firmware in BIOS-CMOS needs to recognize which volume has a boot loader to things effectively starting to become highly operationals. But, at this stage, I think, there is no driver, ...
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Reg safe boot mode in windows 10 [closed]

I just recently stuck with safe boot login window.I entered into safe via msconfig win win10,after restart, it enters into safe mode. I'm using 4 digit pin for user login password,and I'm the admin. ...
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How to boot Windows from Clover UEFI shell

How to boot Windows from Clover UEFI shell. I don't have access to anything but it. When I normally boot it gives error : unknown file system entering rescue mode grub rescue>_ May be that's ...
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Fix unknown file system grub rescue> error

When I boot normally, after the bios screen it shows error : unknown file system entering rescue mode... grub rescue>_ I think it's because, I deleted the Linux(which I used to dual boot) ...
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Boot Linux Ubuntu using Windows Boot Manager in Legacy mode, is this possible?

It might sound a noob question from the title, but I'm pretty new into operating systems. I have a laptop and I would like to run Ubuntu alongside Windows 7. Windows 7 is the default OS, and the ...
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142 views

Create bootable USB with boot manager to dual-boot Windows and Android x86

I tried to install Remix OS (Android x86) on my Windows 10 computer. Unfortunately it overwrote my current bootloader and now I can't boot into Windows nor the newly installed Android. What should I ...
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(dual boot).Getting “system boot order not found” on ubuntu and F1,2,5 for “retry boot,reboot into setup,run onboard diagnostics” on windows

Unexpected return from initial read: Volume Corrupt, buffersize 1000 Failed to load image \EFI\ubuntu\grubx64.efi: Volume Corrupt start_image() returned Volume Corrupt System BootOrder not found....
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GRUB Bootloader with root LUKS encryption: Only grub shell

I would appreciate help and hints to solve a problem with the GRUB bootloader. I have a system with root LUKS encryption. Means that except the partition with the bootloader, the whole system is in ...
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174 views

Cannot install Windows 10 from USB stick - issue with GRUB?

I have followed the instructions here and created a bootable Windows 10 USB stick, but when I try to run the installation the system keeps booting into the GRUB 2.0 bootloader. Unfortunately, I have ...
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Please help me restore windows and windows data after intervention of “Windows 7 Boot Updater” program (preferred without load drive)

Today I wanted to decorate the system(Windows 7 x64) a little. I found in the Internet that can change the animation of loading Windows by Windows 7 Boot Updater program(I downloaded it here; FOR ...
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How do computers know which operating system to boot?

When I turn on my computer, what is the software that selects which operating system to boot, and how does it decide when given multiple options? More specifically, what if I have a computer with ...
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How to recover deleted boot partition on Orange pi3?

I have a orange pi 3 . I deleted its boot partition (that holds Das U-boot files) with fdisk command. As you know the Das U-boot play both bootloader and UEFI (not exact UEFI but playing role of it) ...
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Dual Boot Windows/Debian no longer boot Windows. How to access cmd prompt?

I have a dual boot notebook that had Win10 and Debian installed, after using windows yesterday the debian/GRUB would no longer boot. (BTW that is still a problem, if you can help see this) While ...
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Unable to boot kernel using Refind “EFI stub: Failed to read file” and unable to mount root fs using EFI stub bootloader

Trying to boot custom vmlinuz-5.5.6-ck19360 kernel using Refind bootloader auto detection. Kernel has EFI stub option compiled in, but anyway refind should boot it without EFI Stub. Getting an error: ...
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Fedora 30 new loader: how to switch?

I have updated fedora 29 to fedora 30, but in loader list I get only available options for kernel FC29. I have googled a lot and find several topics on issues with bootloader in fedora 29/30. But I ...
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172 views

Broken Windows bootloader on dual boot Windows/Arch Linux

I have 2 nvme drives one with Windows 10 and the other Arch Linux installed. I was under the impression that the 2 OSes have their bootloaders on their own disks which is not the case in retrospect. ...
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Force u-boot out of fastboot mode

[This is a cross post from U&L SE] I've made a mistake and flashed some hardware with an incorrect version of u-boot. The hardware differs from the hardware that I built u-boot for very little, ...
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error while booting custom minimal linux distribution: unable to mount root fs

Recently I followed along an article describing how to build your own minimal linux distribution (Linuxjournal article) After many tries I finally came to the point where I put my OS on a USB drive. ...
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MacBook Pro 2017 Stuck In Verbose Boot | Clear NVRAM

I own a 2017 MacBook Pro running macOS Catalina, but ever since High Sierra, every time I enter my password to boot (FileVault encrypted boot drive) it displays a verbose boot. Here's the kicker: my ...
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Install both BIOS and UEFI bootloaders with kickstart

I am trying to build a disk image with Koji. To do so you specify a kickstart file to be used. Since QEMU is spawning a BIOS VM, my kickstart is doing only BIOS related stuff. My issue here is that I ...
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Batch file to boot into grub2

I want to make a desktop shortcut on windows 10 to boot directly into grub2 using a batch file or any other way how do I do that
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GRUB in Ubuntu and GRUB in RedHat

I am installing RedHat Enterprise Linux 8 on my laptop with Windows pre-installed and Ubuntu dual booted. For safety reasons, I am installing RedHat Linux on a different drive and have previously ...
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331 views

Custom Operating system on surface rt

I accidentally corrupted my windows 8.1 installation on my surface RT, I can still reset it but I have wanted for a long time to install a different os like Windows 10 or Ubuntu, but how do I bypass ...
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unable to boot porteus linux using bootloader

I have been using porteus on my card and using syslinux bootloader to boot it. I tried to install grub installer using grub.txz file as per the official porteus installation on another usb card. For ...
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547 views

How to get legacy bios to load uefi bootloader?

I have a liveusb, it currently works on an uefi computer. I encountered more and more computers which are uefi only and which are configured to boot only from gpt with password locked bios. But in the ...
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Issue while installing Windows on separate drive, observed shared system and recovery partition

Issue while installing Windows on separate drive WITHOUT dual boot, shared system and recovery partition I have 2 physical drives drive 1 and drive 2. My drive 1 already has a Windows 10 (RS5/19H1) ...
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1answer
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how to boot from selected partition in Raspberry PI 3?

I dont have extensive knowledge about bootloaders. I have some problem about updating the image in a SD card. I have a raspberry PI and i would like to make two partitions in the SD card, so that one ...
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1answer
120 views

efibootmgr is not selecting the right drive/partition

I have an issue adding an rEFInd entry to my boot list, or to be more precise, I'm able to add it, but it selects the wrong disk (even tho I selected another one with the -d parameter.) Take a look ...
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1answer
292 views

How to tell Windows Boot Manager (bootmgr) to load and execute the 1st sector of a specified partition ( chainload )?

I have 2 old-style MBR partitions (non-GPT, non-EFI): An "active" partition containing Windows 7 OS and its bootmgr - the Windows Boot Manager and its BCD.. The second partition contains an exotic ...
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2answers
74 views

Do non-bootable data drives have boot sectors?

Possibly a stupid question here, but I'm wanting to confirm a small detail about hard drive workings that up until now I've just assumed. I understand that the 440-byte bootloader won't be present on ...
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48 views

Move Windows installation from same-disk dual-boot to new disk (UEFI)

My current setup is a single, 512GB SSD with a Linux Mint and Windows 10 installation on 2 equal-sized partitions. Both boot with UEFI. I've bought a new SSD (1TB) and now I'd like to move (first ...
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1answer
707 views

Installing rEFInd on Dual Boot Windows 10 Machine

I have two Windows 10 instances on my laptop. When I check the Boot Entries with VisualBCD the first entry for Windows A is this: The one for Windows B is this: Now I added 2 entries to the refind....
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How to load boot manager from rescue mode?

I initially had Windows 10 in my PC but then I wanted to try Linux mint alongside Windows 10 so I downloaded Mint 19 cinnamon and installed it on my USB flash drive using Universal USB Installer by ...
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Computer crashing when booting Linux 5.4.2

(this is my first stack overflow question, sorry if I'm doing something wrong) I have a laptop running Ubuntu and its bootloader is Grub2. I was using kernel version 5.3.0, but decided to switch to 3....
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Installing Windows 10 with bootloader on usb stick and root on non-bootable NVMe SSD

I'm planning on buying an NVMe SSD for my ASUS Grpyhon Z87 mainboard. This mainboard doesn't support NVMe booting. My plan was to have my ESP on a USB stick and use the NVMe SSD as root. This should ...
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159 views

Xpenology: blinking underscore after installation reboot

I'm new to xpenology builds so I apologize in advance if my questions are a bit too noob 😁. I'm having some trouble getting my setup to work reliably, so any help would be appreciated.   (I) ...
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189 views

Move Windows 10 Bootmanager from one SSD to another

I would need some support one a boot issue with my Windows 10 system. I bought a larger SSD some time ago and reinstalled Windows 10 on the new SSD. It seems it was a big mistake to do the ...
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2answers
299 views

How to boot by default on Windows Boot Loader with UEFI?

I have a problem with my bios which freezes everytime I would like to enter it so I cannot modify anything in it. I've aleady contacted the manufacturer, he is sorry but I have to buy another one. But ...
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1answer
235 views

Prevent Veracrypt (or any other program) from changing the order of boot loaders

Have an installation with dual boot basically as described in the following question: Veracrypt full disk encryption multi-boot Windows 10 and two Linux Distro on same SSD with some shared folders? ...

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