GRUB2 is the second revision of the GRand Unified Bootloader, with versions numbered 1.9x and 2.yz.

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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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0answers
13 views

Kali linux black screen after booting

I've managed to install kali linux from USB but after I try to boot it I get only black screen (after GRUB). It works great when I run only live sesion from USB. I am using MSI GS70 2PE notebook which ...
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11 views

grub2 lvm2 raid1 /boot

Is it possible to boot from a system where /boot is located within an lvm2 raid1 partition. I've tried a variety of configurations, but I have yet to discover how to do it. I am using two 2TB disks. ...
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0answers
25 views

How to restore RAID5 Array

I have a RAID5 array consisting of 3 identical 2TB drives. Suddenly GRUB wouldn't boot anymore and gave the error out of disk. Eventually booted a livecd and ran some mdadm commands: mdadm --examine ...
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2answers
547 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 ...
3
votes
1answer
534 views

Grub2 keyboard layout when decrypting partition

According to the OpenSUSE 12.3 documentation the only keyboard layout which can be used during a Grub2 boot is the "US keyboard layout". Is there really no way to change the keyboard layout used when ...
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2answers
266 views

Installing other Linux in an encrypted disk

I recently got an SSD to replace my laptop's HDD and decided to change and use "full disk" encryption. I created a small unencrypted partition for /boot and an big encrypted LUKS partition where I ...
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2answers
2k views

Recover Windows 8 after installing Kali Linux (GRUB)

I've installed Kali Linux over Windows 8, Kali is installed in a seperate ext4 partition(sda2) and Windows in sda1. Now GRUB is not finding Windows 8 on startup ! I can see Windows 8 with os-prober ...
3
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1answer
522 views

GRUB error Fedora 15 when Dual Booting on MacBook Pro

I am having trouble getting Fedora 15 running on my MacBook Pro. I had Fedora 15 installed before on this MBP before, so I know it works. I basically followed the good old instructions of Create a ...
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0answers
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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1answer
753 views

How do I restore grub on a uefi boot after a windows update wiped it?

Until yesterday I had a dual boot debian / win8 with grub that worked like a charm. Yesterday a stupid windows update totally wiped grub and I'm now unable to boot in linux. I installed linux a year ...
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1answer
571 views

Elementary OS installation failure

I've been trying for a few hours now and I still cannot find out why I cannot install Elementary OS. Every time I try to install it I get: the 'grub-efi' package failed to install into /target/ ...
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0answers
10 views

Grub menu doesn't show setup option

I am new to Ubuntu. I had to reinstall elementary off a USB. I Thought it had installed, so I restarted. When the reset was done the grub screen appeared, so I selected normal boot. After that the ...
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1answer
445 views

Can't get grub to boot windows 7 partition. “error: invalid EFI file path”

I have an "HP pavilion 7008tx dv7" laptop. It came bundled with Windows 7 and has two 1TB HHD and an 32G SSD. Here is the output form "sudo parted -l": Model: ATA TOSHIBA MQ01ABD1 (scsi) Disk ...
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23 views

No GRUB menu after installing Linux Mint 17

I installed linux mint 17 alongside Windows 8.1. When asked about the partition to use as "Reserved boot area"...I chose the 100 mb partition which was listed as "EFI System Partition" in Windows ...
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2answers
2k views

slitaz 4.0 grub2 loopback concatenate multiple initrd images

I'm trying to get slitaz 4.0 ISO to boot using a grub2 loopback on a multiboot USB; insmod font if loadfont /boot/grub/unicode.pf2 ; then insmod gfxterm # insmod efi_gop # insmod efi_uga ...
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1answer
2k views

Booting a file system image from a HDD using GRUB2 with persistence

How do I preserve changes I make to files when running an operating system that is booted - using GRUB2 - from a file that contains a file system. I managed to get GRUB2 to boot an image file that ...
3
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2answers
4k views

Dual booting Debian and Windows 8?

My problem is a little weird (maybe to me only). Specification: Lenovo, Ideapad Z510. i7 intel core. 1920x1080. ISO: GNOME Debian 7.2.0 amd64. Bootable Device: Universal USB Installer. ---Process ...
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1answer
612 views

Incorrect step with grub while installing onto a USB stick?

I tried installing debian on a USB stick. I believed I made a mistake with the grub boot up part. I want to leave my harddrives alone and with my bios choose to boot up from a stick. Do I need grub if ...
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0answers
8 views

Configure where GRUB2 environment block is located

I have Arch, Ubuntu, and GRUB2 installed on a BTRFS filesystem. I'm aware that GRUB cannot write to BTRFS for a variety of good reasons, and therefore cannot save environment variables to ...
2
votes
1answer
344 views

Grub with retina displays (high resolution)

I currently use Ubuntu on my macbook pro with grub. My macbook has a retina display with 2560x1600 resolution. The grub startup screen font is so tiny that it is barely readable. How can I make grub ...
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0answers
29 views

Ubuntu Grub recognises MacOS but cannot boot up

I tried a little experiment on installing MacOS on a non Mac Hardware Laptop... Got this far as to put the MacOS Install ISO on to an HFS+ partition but the machine needs to boot this up for the ...
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2answers
734 views

How to dual boot Xubuntu with Windows 7 & 8 from separate drives

I had Windows 7 and 8 on a hard drive, then I decided to try Xubuntu, and installed it on a separate hard drive. Then I tried using EasyBCD, but Windows doesn't recognize Linux partitions. ...
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20 views

Where isoboot, boot=isolinux iso-scan/filename parameters are documented?

I see example (in dracut docs) linux (loop)/isolinux/vmlinuz0 boot=isolinux iso-scan/filename=$isofile root=live:LABEL=$isolabel ro rd.live.image these texts: ...
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1answer
692 views

What does the --hint option in grub2's search command do?

I'm looking at the official GRUB2 docs for the search command, as found on http://www.gnu.org/software/grub/manual/grub.html#index-search Command: search [--file|--label|--fs-uuid] [--set [var]] ...
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1answer
1k views

Grub 2 os prober for windows 8

I try to use dual boot with fedora 20 and windows 8. I install first windows and then fedora. And grub dedectet automatic my windows. So the default \etc\grub.d\30_os-prober for windows is this: ...
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1answer
526 views

Why do I need GRUB_DISABLE_LINUX_UUID=true

I just switched from lilo to grub2 and my first attempt failed with kernel panic - not syncing vfs unable to mount root fs on unknown block(0 0). It turned out that the problem was that the root ...
2
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1answer
805 views

efivars data missing from procfs and sysfs

I'm trying to install ubuntu on a Tab-X 10.1 Intel WinPad. The UEFI loader only allows booting from 32 bit efi images. Ubuntu only supports UEFI in 64 bit versions. I'm trying to get the 64 bit ...
0
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1answer
58 views

Gentoo: grub2 with efi [Solved]

I have a strange problem about loading with grub2 and efi on gentoo. Maybe I've missed something, but I'm trying to do this: # mkdir /media/gentoo # mount /dev/sda8 /media/gentoo/ # mount -t proc ...
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1answer
563 views

Debian install fails on USB-HDD

After my internal HDD broke in my laptop, I've tried to install Debian 6.0.6 on my external HDD. Please note that everything runs great when installing Ubuntu, but for some reason while the Grub stage ...
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1answer
957 views

GRUB no longer can boot the machine (different error messages)

When I boot from GRUB, I get various error messages from GRUB, apparently at random : "invalid arch independent ELF magic" or "incompatible license" or "file not found". I can boot from the rescue DVD ...
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30 views

Problem dual booting windows 8 and ubuntu 14.04

I had windows 8 for like 12 months Yesterday I choose to install ubuntu 14.04. On windows 8 I had 2 partitions C(where windows was installed) and D(other ntfs partition). I shrunk D with 50 GB then I ...
3
votes
1answer
494 views

Builiding a UEFI bootable USB

I'm having a really hard time getting Mint13 installed on my new laptop, no optical UEFI support and having odd corruption of grub.cfg when I do try and use unetbootin. Is there a method to build a ...
4
votes
1answer
701 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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0answers
75 views

Grub environment block on Centos 7 with efi?

How do I modify the default or next-boot boot entry for the next reboot on Centos 7? I need to switch back and forth between kernels frequently. The machine is in a different room, so it is most ...
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votes
5answers
7k views

Fedora won't boot after installing Nvidia drivers

I followed this tutorial about Nvidia drivers installation and I accidentally forget to do 5th point (disabling nouveau drivers), so now I can't boot my system. I know I am idiot but is there anything ...
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2answers
7k views

Poor TTY resolution with nVidia driver

The resolution of the TTY1-6 is poor ~ 640×480 Ubuntu 11.10 | Grub2 | nVidia | NVIDIA GT215 Board I went through the process on this site and after the edit the GRUB menu appears in the correct ...
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0answers
13 views

Grub error recovery

I have a Windows 7 installation with two drives, C & D. I use a disk image app called Keriver to get back my Windows installation once it starts acting up. Keriver creates a boot loader with the ...
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1answer
68 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
13k views

GRUB-EFI installation fails while installing Kali Linux in external hard disk

I was trying to install Kali Linux from a live USB to an 1TB external hard disk. At first I was unable to boot the live USB with my H2O Insyde BIOS. Then I converted my pen drive partition table to ...
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3answers
3k views

Dual booting Ubuntu and Windows 8. w8 boots through grub shell, but not from menu

I have a laptop, with installations of Ubuntu 12.10, and Windows 8. Windows 8 was first installed on the system, and Ubuntu was installed afterwards. During the Ubuntu installation, the installer ...
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1answer
26 views

Initialise USB devices before hard disks during grub2 boot

I have a CentOS installation on a portable USB stick, with a grub2 installation on it's first partition. The system can boot when there are no internal hard drives plugged into a machine, but fails if ...
0
votes
1answer
2k views

Kali Linux + WIndows 8 - Cleared my master boot record, can't access Win 8

I'm not a linux power user by any measure and managed to screw up my MBR. Currently I have access to Kali linux, and GRUB is working fine (Kali installed without problems.) While installing Kali it ...
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3answers
9k views

How to install Kali linux on to a specific (existing) partition on a USB stick

I'm endeavoring to put Kali linux onto a USB stick - I know it's already written up, but I'd like to use only a portion of the total space (the aforementioned link will use the entire drive space). ...
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2answers
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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
63 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
2k views

Grub2 unable to boot encrypted root

I'm using ArchLinux, I followed their tutorial on encrypting your root filesystem: https://wiki.archlinux.org/index.php/Using_DM-Crypt But I cannot get grub to boot the encrypted partition. My ...
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1answer
49 views

How to generate grub.cfg for different disk?

I have 2 disks: 1-st disk contains base operating system (/dev/sda with many partitions and OSes) 2-nd disc should be setup (/dev/sdb1=/boot,/dev/sdb2=/) I have grub2 package installed in the base ...
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1answer
422 views

Centos VFS cannot open root device

Yesterday I did a kernel update on a virtual machine. When I restarted the machine unfortunately I got the error Kernel panic - not syncing VFS After some searching I found out I should go to GRUB ...
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1answer
359 views

Windows 8.1 not showing up in GRUB bootloader after installing Linux Mint 17.1 on partition

my system drives are based on these hardware parts 1: SSD 250 GB 2: HDD 1TB 3: External HDD 2TB I use my SSD for Windows 8.1 and all other related stuff, like, installing software etc. The HDD is ...