The software that loads up the operating system or another boot-loader (chain loading).

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How to access u boot environment from linux?

How can I access and change the u-Boot env variables in linux. Using the u-boot/tools/env directory in u boot directory: u-boot$ make env Which created the executable file fw_printenv. I copied ...
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44 views

Booting Linux from RAM

I want to find a cross-distro solution for setting linux up to boot from RAM. What this involves in essence would be copying an existing installation of linux one way or another over to the RAM (to ...
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1answer
3k views

How to dualboot Win7 and Chrome-OS on Netbook

I have tested Google Chrome OS (aka Chromium OS) using a USB pen drive, or more precisely Chrome OS Lime by Hexxeh. Since I like it I would like to install it along side of my pre-installed Windows ...
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2answers
826 views

File system CRC check

I know that before running the kernel, u-boot (the boot loader) will check the kernel image CRC. Only if it is correct it will go further, else it will give a "Bad CRC" error. I want to do same thing ...
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16 views

can I use vmlinux instead of vmlinuz with GRUB2 (Fedora)?

Can I use vmlinux instead of vmlinuz with GRUB2 (Fedora)? I've seen this: Can vmlinux be used instead of uImage? but it speaks of U-Boot, not GRUB2.
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18 views

Changing hard disk configuration without reinstall

I have been using Arch Linux since 2013 and I love it The major reason I tried Arch was that it let me install with / on a RAID-0 partition. My laptop has 2 hard drive bays and I had 2 SSDs There ...
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2answers
501 views

Where to find the VBR on the /dev/sda1 partition?

I have one built-in hard disk /dev/sda which looks like this: Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * ...
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2answers
31 views

How to Overwrite Linux Mint 13 with 17.1 with Windows 8.1 dualboot?

I have recently been given a disk from my friend to install Linux Mint and have installed it to dual boot with my Windows 8.1. The version he gave me was version 13 (maya). I want to overwrite this ...
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2k views

Arch Linux Live USB no longer booting UEFI

My Lenovo laptop is running Arch Linux with a UEFI GPT partition table. One day I powered up my laptop, but couldn't get passed the Lenovo boot screen. I used a USB stick to boot up and reinstall ...
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2answers
140 views

Easy way initrd to chain loading another kernel with kexec

I have here a machine which won't boot 64-bit kernels (it has efi32 with a little bit of... uncommon firmware). Currently, my only way to boot my 64-bit linux system is: Booting a 32-bit distro ...
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42 views

System Boot Order not found (Secure boot is not enabled)

I have this problem http://forums.fedoraforum.org/showthread.php?t=299306. Although this thread is not mine, I experience this problem in familiar way. Also when I put live CD, it cannot boot from the ...
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1answer
700 views

Can the grub2 bootloader replace Windows bootloader partition?

I'm dual-booting Windows and Kali Linux on my laptop, using GRUB 2 as the bootloader. Can I remove the partition Windows 7 creates for the bootloader? It is the 100 MB partition labeled "System ...
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1answer
2k views

Windows boot option is missing after installing CentOS 7, how can I get it back?

I recently installed CentOS 7 on a machine that has been running Windows 7. I did a dual boot installation and installed CentOS in a partition. But when I boot up my machine, it only gives me two ...
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1answer
64 views

Multiple boot: Windows-10 along Linux?

On a computer running for the long term Linux Mint 17 Xfce (ubuntu 14.04) along Windows 7 I have created another two separate partitions with the purpose of installing for the short term other systems ...
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3answers
206 views

Why does BIOS needs to load first stage boot loader from MBR, but this is not the case with UEFI?

Why does BIOS needs to load first stage boot loader from MBR, but this is not the case with UEFI? I guess it might be because BIOS cannot address 64 bits(as well as 32 bits) memory while UEFI has ...
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2answers
1k views

How can I boot the PC-BSD live DVD-ISO IMAGE directly via GRUB2?

Via the loopback command, GRUB2 allows to directly boot an ISO file. Now, I've configured the according menuentry to boot the PC-BSD Live DVD ISO, but when I try to boot it, the FreeBSD bootstrap ...
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0answers
60 views

Can Grub2 multi-boot LUKS/LVM distros with only one boot partition?

There are many tutorials on the internet for multi-booting unencrypted distros using a single boot partition and chainloading. For example, booting 145 OSes. Likewise, there are tutorials for ...
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1answer
51 views

How to write a program which can run on a computer without a operating system? [closed]

If there is a computer without operating system, then we can install one on it using a floppy disc or usb stick. While the computer is booting, we push F11 or some other button, then the computer ...
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1answer
37 views

Simple problem, Long read: How to overwrite file residing on ESP at Linux boot

First, foundation. Here is my setup: I have a 64-bit dual-boot system running Windows 7 and Linux Mint 17 Cinnamon. I use rEFInd to graphically choose which system to boot. A little bit about ...
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39 views

CentOS rescue mode

After a power outage somehow my server is not finding the boot partition anymore. As far as I read about recovering a CentOS 6.4 I just need to pick "Rescue installed system" option from the boot ...
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2answers
955 views

Bootloader fails to load linux kernel

I upgraded linux kernel from 2.6.32 to 3.0.7 but now bootloader isn't able to load the kernel image. Specifically, boot procedure freezes after: Starting kernel ... Uncompressing Linux... done, ...
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How to recover windows 8 after accidently installed Kali linux [duplicate]

I have accidently installed Kali Linux 1.0.6 from pendrive on my windows 8 PC. i can still see the icons of my installed programm on my windows 8 but cant access them. Now I want to get back my ...
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2answers
396 views

How does a bootloader and kernel interact after the kernel is loaded in memory?

I'm a little bit confused about the role of bootloader and its interaction with kernel, especially when talking wrt ARM Llnux. Once the Kernel is loaded into RAM, is there any job left for the ...
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30 views

Meaning of an ampersand prefix in a device tree

I am looking at a DTS file which tries to specify different nodes, but interestingly I find a few nodes having different style of nomenclature. / { model = "TI AM335x BeagleBone Black"; ...
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1answer
461 views

UEFI installation failed Fedora 21

I have installed Windows 8.1 on my Lenovo laptop. When I configure partitions I receive this error: No valid bootloader target device found. For UEFI installation , you must include an EFI System ...
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79 views

FreeBSD bootloader won't boot from the correct pool

I've installed FreeBSD 10.1 on a system which has two ZFS pools, and which boots from an other hard disk, which contains only the bootloader. The main pool disks are connected to SATA ports on a PCI-E ...
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1answer
54 views

Fix grub v2 bootloader configuration on running debian

We have a server running Debian Wheezy. It is connected to a UPS, that's why it basically never went down for years and we never noticed that the grub v2 bootloader could not load the correct kernel ...
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3answers
18k views

Installed Centos 7 after Windows and can't boot into CentOS

I wanted to setup a dual boot for Windows 7 and CentOS 7 I had a Windows 7 machine with 500GB disk. I shrank the Windows partition to provide space for CentOS 7 (roughly 230GB). I created a USB ...
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1answer
111 views

How to boot kali from native usb

Last night I made a kali linux usb. Now this isn't the live usb I literally installed kali on the drive. I did this from my desktop which meant naturally I had to install the grub for my boot loader. ...
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1answer
837 views

Separate /boot partition on USB

During standard Debian install i decided to go with implementing additional security factor which is /boot on separate USB key. In Debian guide I've found it is only put this way. ...
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2answers
34 views

Decided to install ArchLinux, but faced a problem with Windows

I decided to install ArchLinux and the tutorial I found wanted to create the partitions in advance. So I made the ext4 and linux-swap partitions and saw in gParted my old friends - the Windows ...
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9answers
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What is the /boot partition really for?

I'm reading a relatively old text on Linux partitions and file systems (the LPIC 1 Certification Bible). It says: Some versions of the Linux boot loaders cannot access a kernel that is outside ...
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Recovering from 'grub rescue>' crash [closed]

Originally posted to AskUbuntu.com ... AskUbuntu has adopted a policy of closing questions about EOL (End Of Life) versions. There's a vocal contingent to remove them as well. To prevent ...
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2answers
110 views

What file system should a GRUB 2 boot partition use?

I want to install GRUB 2 to its own, comparatively small (500 MB), partition. Are there any requirements on what file system type it has to be? Are there any that, although possible, are not ...
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24 views

install grub from grub bootable cd-rom

I want to install grub from grub bootable cd-rom. I found the instruction to make grub bootable cd-rom at ...
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0answers
24 views

bootable usb creator without default bootloader

I want a program (a linux command is more preferable) to create a bootable usb drive but all the programs which I have seen have a default bootloader which they install but I want the bootloader in ...
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10answers
18k views

Install rEFInd on OS X 10.10 Yosemite

I want to dual boot my macbook with Arch Linux and thus tried to install rEFInd using the install script, however, after install rEFInd doesn't seem to start at all? Anyone experienced the same issue ...
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1answer
121 views

Can't boot into Windows after adding Linux as dual-boot

Okay, so I just added Linux as a dual boot and now I can't boot back into Windows. Basically, I had one hard drive which was installed with Windows 7 and booted that. I recently got a second hard ...
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110 views

BURG themes not working

Sorry if this is a duplicate question. I couldn't seem to find an answer that worked for me. I currently have Elementary OS and windows dual-booting on my laptop (Dell Inspiron N5010) So I have ...
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1answer
31 views

GRUB2 - boot Arch from grubshell [closed]

I installed Arch Linux from CD, rewriting old Fedora Core - ext3 and substituting it with ext4 Arch Linux. On /dev/sda1 WinXP (I know, old). Then, I ejected CD and rebooted. I was thinking that GRUB ...
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1answer
64 views

Tried triple boot and Windows 7 no longer boots

I had a system with 64-bit Windows 7 Home Premium installed and I installed first Fedora 64-bit alongside it. Then I decided I can do triple boot and installed Ubuntu 14.04.1 LTS 64-bit using manual ...
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2answers
27 views

Boot loader below 128 GB

I have some old hardware where Linux can't boot if the bootlader is over 128 GB. The problem is that I don't know exactly how those 128 GB are considered. So the first question is, are they ...
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1answer
73 views

Why is the boot sector on a Linux partition empty?

I am aware that Linux systems largely use GRUB 2 as the bootloader stored in the master boot record of a GPT hard disk. However, each partition has its own Volume Boot Record or Partition Boot Record, ...
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272 views

Can't boot into legacy SeaBIOS

I have a Acer CB3-111 Chromebook, and am trying to run Debian wheezy Following tutorials online, I managed to: Put machine into developer mode Enable legacy SeaBIOS (crossystem dev_boot_usb=1 ...
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48 views

Use rEFInd live usb values to fix Grub2

I have a machine that runs Ubuntu14.04 as it's main OS, but also has Windows8 and Slackware on it. Booting to the Grub2 menu allows for the selection of these OSes and several other options, but only ...
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3answers
808 views

Switch debian install from legacy to UEFI

I have Debian 7 installed on my laptop on the ssd and windows 8 on the hdd. Currently to boot Windows I go into the bios and change a boot setting from legacy to UEFI, which means to boot Debian I am ...
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55 views

Is the EFI boot loader not in MBR?

Based on this answer for detecting the boot loader I ran sudo dd if=/dev/sda bs=512 count=1 2>&1 | grep GRUB and it matched. However, I'm pretty sure I'm running Gummiboot since modifying ...
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64 views

Booting Linux OS from syslinux bootloader

I have a multiboot usb stick in /dev/sdb. The sdb1 partition contains linux distribution images and has syslinux installed on it. The second partition sdb2 has a Linux OS installed on it (Ubuntu). ...
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126 views

Filesystem for boot partition

I created a BIOS boot partition on a hard drive, using gdisk : $ sudo gdisk /dev/sdb Command (? for help): p Disk /dev/sdb: 7821312 sectors, 3.7 GiB Logical sector size: 512 bytes Disk identifier ...
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62 views

Too many problems with GRUB2; need factory reset, but cannot fresh install

An update corrupted my GRUB, so it takes extra-long to boot my computer since I have to go through the lengthier option via recovery mode. I want to back up my files on Dropbox and restore the whole ...