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Questions tagged [bootloader]

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

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Is it possible to install Windows 10 to a larger drive while putting the boot loader and hibernation file on a different, smaller, faster drive?

I am working on a new desktop build and am trying to maximize both performance and stability. I have a RAID 5 array for my system volume that will have Windows installed on it and my data. I have a ...
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0answers
20 views

windows bootloader accidentally removed from a dual boot system

I'm using Windows as a second OS and as I was trying to reinstall Linux I accidentally formatted the old /boot. now Linux is booting as normal but the Windows bootloader won't show in the grub menu. I ...
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1answer
54 views

Dual boot with offline disks

I have a setup with 2 Windows installations in the same machine (different physical disks) and I'm keeping them separated, meaning that each installation has the other one's disk as "offline". This ...
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34 views

Installing rEFInd on Windows 7

ALL, I'm trying to follow an instruction here to install rEFInd on top of my Windows 7 laptop. Problem is - step 2 fail because apparently mountvol on Windows 7 does not have an option "/S". I tried ...
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1answer
70 views

Running U-boot standalone API's in spicific core

I am working on Imx6 sabre SD free-scale board, we have u-boot compiled for the board also running an standalone API's(simple hello_world program) from u-boot. But now I want to load & run this ...
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3answers
40 views

How to add an already installed Linux to Windows boot loader?

Is there anyway to add an already installed Linux(preferably Kali Linux) to windows boot loader? I had both Windows and Kali working fine using GRUB boot loader. After my windows got corrupted and I ...
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0answers
102 views

How to boot a bootable .bin file from a CD/DVD?

I have written a bootable program in assembly and compiled it into a .bin file. This is a Boot sector program which works well in Virtual box where I have to manually put the program in the offset ...
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1answer
27 views

Laptop only boots to grub> command shell

I've managed to semi-brick a laptop by using it to install Xubuntu to an external drive. The laptop is a Toshiba Satellite NB10t-A-10F. Any help would be greatly appreciated. How I got here: I told ...
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2answers
64 views

USB drive bootloader that redirects the boot process to an ISO image

I'd like to have a bootable USB drive that contains a boot loader that can prompt to select an ISO image to continue booting from. In this question I've already provided an answer containing a tool ...
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0answers
49 views

PC only boot the “Choose an option” Screen

Problem: Windows boot to "Choose an option" Screen with the options: 1. Continue - Exit and continue to windows 2. Use a device 3. TroubleShoot 4. Turn off your PC I performed a clean windows 10 ...
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1answer
208 views

How to safely set, change, remove values of EFI variables

After spending hours debugging a problem where systemd-boot started skipping its boot menu and in general ignoring its configuration file /loader/loader.conf (on the EFI partition), I've discovered ...
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0answers
219 views

GRUB for RaspberryPi 3 with raspbian

Is it possible to boot Raspbian on RPi3 with Grub? I have managed to load grub on RPi3, but I cannot load Raspbian by Grub. What do I wrong? Or is it possible that GRUB does not support Raspbian? ...
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1answer
111 views

Trying to repair Windows 10 bootloader

I'm having a nearly identical issue to the one described in this post. I'd expect the solution would work perfectly, however, I can't create the efi partition on the drive with Windows installed as ...
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0answers
45 views

Dual or multi boot to a pre-installed/existing windows 7 on another drive without fresh install

I have a laptop that has working Windows 7 64-bit Enterprise edition on Drive0 which is an HDD. I have switched this HDD from Drive0 into Drive1 and plugged a new SSD into Drive0. I then install a ...
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0answers
15 views

Using rEFInd to execute real mode boot loaders

I am interested in making my own operating system. To start, I am going to try it out inside a virtual machine. In the future, I would like to run it physically. This is the tutorial I am following ...
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0answers
33 views

How do we prepare sd card for boot

I have a uboot.img and a uImage prepared for an nxp board. I want to understand how can I make u-boot to load kernel. So I understand that there is an address on sd card from where the kernel image ...
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0answers
30 views

rEFInd's EFI file removed but computer still boots on

I'm on multiboot (Ubuntu/LUKS, Win7/VeraCrypt, Win7 unencrypted) and I installed rEFind to tinker few boot things I slightly broke. I nearly made my stuff and now I want to remove it (or at least make ...
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2answers
1k views

Grub rescue says all partitions have 'Filesystem is unknown'

I have simple Windows 10 and Ubuntu installation. My latest Windows update just messed with my GRUB boot loader somehow. Every other answer mentions to type a few set boot and set prefix However ...
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1answer
57 views

Install grub2 on another partition from Windows

I want to install grub2 on my secondary Windows partition and chainload from primary Windows boot loader with dd. I can specify disk with //./PHYSICALDRIVE0. But how can I specify the partition?
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0answers
105 views

Windows 10 loader shows but doesn't work

I had Windows 10, then I installed Ubuntu 16.04. And from Ubuntu I tried: `update grub` `update-grub2` And it found the Windows 10 loader and I see it in grub. But when I select it it goes to a ...
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0answers
193 views

Windows 10 boot corruption

I have an Asus laptop with Win10 installed. I previously had a distro of Linux installed with its own GRUB. Today, I decided to change the Linux distro, but I first checked whether Win10 UEFI was ...
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0answers
36 views

Dual booting configuration

I am trying to run dual configuration on my PC. I have Windows 10 installed on SSD and I installed Linux on HDD. When Installing Linux Ubuntu I created boot partition which is visible by Windows (disk ...
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1answer
885 views

“Boot error” when booting YUMI USB flash drive

I created my YUMI USB flash drive some time ago. I’ve used this drive to boot various PC’s successfully (so other situation than in an existing question). However, when I tried to boot my laptop ...
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1answer
1k views

Booting NVMe drive with a bootloader

I'd like to use an NVMe drive paired with a PCIe adapter as main system disk. Unfortunately, I have a mainboard (X79) whose BIOS does not support booting NVMe drives. I was wondering if I can install ...
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1answer
355 views

how to create a bootable Mac OS usb stick from mac.iso on a unix shell?

My mac filesystem is so broke that i can't even enter recovery mode. I am now on a linux live system and have InstallESDDmg.pkg which I could extract with 7z. I could also use dmg2img to create an iso ...
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0answers
55 views

Manually GRUB reconfiguration

I installed Windows 10 and Debian on the same computer. Windows 10 was before encrypted by VeraCrypt, however GRUB create entry in boot menu only for Windows Bootloader, so I should add manually ...
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0answers
44 views

Windows 10 / Linux dualboot on GPT-table without (!) UEFI - maybe another approach possible?

Would the following sequence work to run Windows on a GPT partition table without (!) using UEFI-boot? Install Windows the classic way in Legacy-BIOS mode onto a usual MSDOS type partition table Boot ...
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0answers
26 views

External Disk is not visible after some undefined changes with Zadig Bootloader

Would be nice if someone can help. Erasing the driver and starting new did not help to solve the topic. I think i have changed something with Zadig Bootloader. I tried to conect another USB device ...
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0answers
38 views

Is there any universal VHD boot loader?

Windows Boot Loader has ability to boot a VHD file which contain a Windows installation. However if it is Linux distribution or FreeBSD distribution, it would not work. Hence is there any boot ...
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1answer
129 views

What have windows boot manager done during booting Windows From VHDX file? (is about Principle not Configure step)

When Windows 7 released, a feature of Windows Boot Manager also came out. It is Native boot. However there is a magic point which make me confused. When Windows Boot Manager is working, we can assume ...
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0answers
19 views

How do i convert my pc from MBR to UEFI [duplicate]

I am running windows 10. I want to duel boot Android-x86 and Ubuntu mate. When installing mate, I was told that i was using MBR. I didnt think much of it until I went to the partition table where my ...
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2answers
769 views

Choose to boot into linux from Windows 10 (dual boot without bootloader)

Given that I have installed both Windows 10 (primary) and Linux (secondary) in my disk, is there a way to boot into Linux by option inside Windows 10, maybe using 3rd party software? I want to use ...
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0answers
59 views

How can I recreate the efi boot loader of a Bootcamp installation?

I was updating my Bootcamp windows 10 (which was running in Parallels Desktop). Something happened apparently (I don't know what), and when I later started the Bootcamp Windows from Parallels, its ...
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0answers
41 views

What validation does Windows 10 bootloader perform on the ESP

I can boot Windows 10 by running EFI\Microsoft\Boot\bootmgfw.efi on the ESP (2nd hard disk partition). However, if I copy the EFI folder to a 100 MiB FAT32 file system on another disk and attempt to ...
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0answers
21 views

Intermittent Inaccessible hard drive

am trying to diagnose an issue. Client provide device erroring with cant find hal.dll. This isn't the issue that i have a problem with but where the investigation started. Also needed to retain data ...
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1answer
2k views

Remove ASUS ROG UEFI boot branding from laptop

I was asked to purchase a laptop with a 17" screen for a customer who owns a restaurant, so I bought an ASUS ROG G750JM. It's a very capable laptop and has nice features and build quality. However, ...
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5answers
64 views

Is safe to hide piece of paper with bios password on it inside notebook? [closed]

If someone stole my notebook they try to reinstall system and delete all of my work. I want to lock bootloader with password but i'm afraid of forgetting it myself. I like to know if is safe to hide ...
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2answers
605 views

Difference between U-Boot and UEFI firmware

I'm reading a book (Mastering Embedded Linux Programming, 2nd ed). In the chapter on bootloaders it explains the booting process with U-Boot and with UEFI firmware. It looks like the booting steps ...
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0answers
115 views

After deleting partition, I cannot boot from usb

I have installed linux mint alongside windows on my laptop. At that point I had windows-10 and linux mint, but the only way to load linux was to boot from usb! I decided to reinstall linux again and ...
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0answers
70 views

Recovering an unbootable NTFS drive

I am trying to recover an NTFS drive for a friend and need some help. Windows 10 was installed on the SSD as the operating system and after a failed update (screen went black during update and laptop ...
2
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1answer
264 views

How can I prevent Windows 8.1 overwriting my bootloader?

I have a dual-boot system with Trisquel GNU/Linux and Windows 8.1, using the GRUB bootloader. However, I am having a problem where, every time I boot into Windows, it seems to be overwriting GRUB, so ...
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0answers
14 views

Installing Windows 7 x86 on pre-dualbooted Windows 10-Ubuntu

I have a PC with Windows 10 64-bit and Ubuntu 16.04 dual booted, but I changed the bootloader from GRUB to Windows' bootloader or MBR or whatever it's called(I made a YouTube video on it here: https://...
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3answers
157 views

When people say “In the first readable sector” are they refering to readable for the firmware or Operating system and is there a difference?

I was studying for my Linux+ exam and while taking notes I was attempting to explain the different stages of the grub bootloader to myself in my notes and I got hung up on a specific fact. To my ...
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0answers
58 views

Grub doesn't seem to find grub.cfg automatically?

Whenever I start my Linux machine I get greeted by the Minimal Bash like editing... screen and I always have to specify the grub.cfg file manually. I tried the command update-grub2 but the next time I ...
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0answers
212 views

Can any Windows 10 Recovery Disk fix the bootloader/

Long story short, I'm currently dual-booting Windows 10 and Ubuntu 16.04, and require deleting my current Ubuntu installation in order to reacquire the space. GRUB is handling boot-up, and my ...
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0answers
36 views

Updating Windows 10 dual-booted alongside Ubuntu fails

I have a machine that is Win10/Ubuntu with the GRUB boot loader. Windows is currently trying to push an update that restarts the computer during said update, but whenever if restarts, it goes back to ...
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1answer
2k views

Dual boot Windows 10 UEFI and Ubuntu using windows bootloader

Any tutorials I can find online use the GRUB bootloader. The only similar thing I can find is this, and it is unanswered and not at all clear what he has done or is trying to do. I have a laptop with ...
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0answers
18 views

Can symlink or bootloaders be used to gain space/boot off a microSD?

I have a basic notebook that came with Windows 10 but only has 32 gigs HD space. After updates windows literally could not install all of it because of the size. It does have a microSD slot and I have ...
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2answers
1k views

Windows 10 installation hangs on logo on an old computer

I need to install win 10 on a relatively old computer. Its got a Gigabyte p965DS4 motherboard, Core 2 Duo E8400 processor, 3gb of DDR2 and a 320gb SATA2 hdd. All the components are still functional, ...
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0answers
39 views

Replacing custom bootloader with GRUB

Context: I have a rooted device, one board Linux with busybox binary, and I would like to install new packages on it. Unfortunately busybox doesn't provide utilities for that, apart from rpm. To add ...