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4
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0answers
43 views
+50

How to write/edit/update the OsIndications efi variable from command line?

In the need to enter the UEFI firmware setup utility while using ultra fast boot (keyboard drivers are not loaded during POST), I wish to write to the "Os Indications" efi variable. My OS is Ubuntu ...
3
votes
0answers
48 views

When do I need to specify add_efi_memmap as kernel argument in UEFI/EFI boot?

I am reading some tutorials how to EFI stub (efistub) load the Linux kernel. These instructions often use kernel boot parameter add_efi_memmap. The intended hardware is Intel x64 having 8GB of RAM. My ...
1
vote
0answers
18 views

Create bootable hfs+ partition for macbook

I've installed Debian testing on a Macbook Pro (mid 2014) without keeping OS X on the internal SSD. I've used the following GPT partition layout: HFS+ EFI on /boot/efi BTRFS on / SWAP on swap I've ...
2
votes
1answer
706 views

Arch Linux on an UEFI-GPT system with Windows 8.1 dual booting [closed]

I'm going to install Arch Linux on an UEFI computer. I've also Windows 8.1 installed and I would like to keep this operating system in dual boot with Arch. I should ask many questions, because this is ...
2
votes
1answer
179 views

Debian Jessie GRUB2 on a multi-boot EFI laptop cannot start a Gentoo kernel-initramfs

I have an HP Pavillion Touch 14-N009LA laptop running on an AMD A8-4555M CPU, 8 GB of RAM, and a 750 GB HD, currently running on dual boot Windows 8.1 accessible via the system's EFI boot manager, and ...
2
votes
1answer
109 views

UEFI bootable iso of own Linux distribution

I have a Linux distribution that I want to create an ISO of, so I can put it onto a CD or USB. I have earlier used Remastersys and Relinux to create my own linux distributions, but the ISO they make ...
1
vote
1answer
68 views

How can I chainload GRUB on another drive?

I have two pen drives. On one I have a full install of Arch GNU/Linux. This install is compatible with both EFI systems and BIOS systems; it has a GPT drive with a BIOS Compatibility Region and an EFI ...
1
vote
2answers
112 views

Gentoo XEN host + EFI + MDADM + IMSM RAID5

I have a workstation with a working Gentoo setup. It uses IMSM FakeRAID (level 5) with 4 disks. Booting done without bootloader using Linux kernel EFI STUB. System works fine. Now I need to setup XEN ...
3
votes
1answer
98 views

Updating kernel versions when booting from rEFInd

I'm booting from EFI using the awesome rEFInd bootloader. I've so far had to configure boot myself by manually copying over my EFI-compatible linux boot image to my EFI partition and writing a ...
1
vote
1answer
108 views

Use some EFI loader to boot MBR

For compatibility reasons I had to install Debian via BIOS emulation rather than native EFI. As the EFI internal bootloader takes ages to look for bootable legacy disks I'd like to change the ...
2
votes
2answers
71 views

How to make a secure-boot compliant boot CD

I've found quite a bit of information floating around on the Internet about how to install Linux onto a harddisk and get Secure Boot to work with it. But I can't find a single shred of information ...
0
votes
0answers
47 views

HP-UX itanium cannot log in or connect

I just had this problem where suddenly I cannot ssh into my HP-UX itanium, but still can ping. Few hours before that, I was still able to so. I tried to force reboot (Pressing the power button). Then, ...
4
votes
1answer
2k views

How to reinstall grub to the EFI partition after initially installing it in Linux root. Do I have to start over?

My machine was running Mint 15 KDE 64-bit (GPT partitioning, EFI bootloader without 'secure boot'), and I wanted to try Mint 16 before committing to it. So I installed it into another partition and ...
0
votes
0answers
360 views

Install Elementary OS on an iMac from 2008

I'm trying to install Elementary OS Luna (based on Ubuntu 12.04 LTS) on my iMac from 2008. At first I tried the straightforward combination of hdutil and dd to a USB drive, which failed to even show ...
2
votes
2answers
417 views

How to move EFI and boot partitions?

I am in the midst of moving these two partitions from sda5 and sda6 to sda1 and sda2 respectively. This is to allow me to have a contiguous space for the root file system to grow. The following is ...
2
votes
1answer
354 views

How do I dual-boot 2 (or more) Linux distributions with gummiboot and UEFI?

I have Arch installed as my main OS with gummiboot for booting. I'm planning to dual boot with Fedora 20 soon but I am currently held back by some doubts. Do I need to install Grub2 for Fedora even ...
1
vote
2answers
1k views

I messed up my EFI boot, what do I do?

I have Debian Wheezy installed on my computer using EFI boot. It used Grub2 as the bootloader. I then decided to install Arch Linux, using EFI as well, on another partition and chose Grub bootloader ...
0
votes
0answers
24 views

efibootmgr not found while grub-install --recheck on Arch linux install [duplicate]

I'm not an expert on linux. I've been used Ubuntu for a year or something. When I bought a new laptop (Lenovo G500) and wanted to install Arch Linux on this machine. I followed the steps of official ...
3
votes
2answers
84 views

How can you configure a system to be bootable from most modern systems?

How can a Linux system be installed on a portable storage medium so that both BIOS systems (e.g. a ThinkPad) and EFI systems (e.g. a Mac Mini) can boot to it? The reason I ask is because I tried ...
5
votes
1answer
5k views

Arch Linux GRUB install: “EFI variables are not supported on this system”

I am attempting to install Arch linux to a new (and very crappy) HP Pavillion 15 Notebook. This is a UEFI-based machine. After several swings at it, I have managed to get pretty far. Legacy mode is ...
5
votes
2answers
2k views

How to recreate EFI boot partition?

I've installed Fedora on my machine with / partition, swap partition and ESP partition for EFI booting. Now, I was installing Elementary OS instead of Fedora. I have formatted the / partition ...
1
vote
0answers
364 views

Grub - Windows Invalid EFI file path

I have 2 hdd, Windows on the first, I installed Mint on the second. This destroyed the bootloader so I used boot-repair to restore it. Boot-repair identified both OS. Now my fresh Mint install boots ...
1
vote
2answers
832 views

Getting error opening Windows. Error 1: Filename must be either an absolute pathname or blocklist

I've installed CentOS 6.4 on UEFI machine. Created /boot/efi partition and installed grub in it. But when I open Other in the grub menu I get this error: Error 1: Filename must be either an ...
0
votes
1answer
93 views

Fedora 18 not working on an HP Dv7

I've recently installed Fedora 18 on my brand new HP Dv7 that comes with Windows 8 and secure boot. Before install Fedora I disabled secure boot in the BIOS. I've installed Fedora 18 and all is ...
4
votes
1answer
1k views

grub error : “File not found” for separate /boot/efi partition

I've installed CentOS 6.4 on UEFI enabled machine, created /boot/efi partitions. But my grub is not automatically starting, if I start the PC, I start in Windows 8. I can only start CentOS by ...
3
votes
2answers
6k views

How to build a live Debian CD/USB in Windows, bootable in EFI mode?

I tried to install the latest stable Debian release (Debian 7.0 "Wheezy") using the Debian Multi-arch netinstall (AMD64) "debian-7.0.0-amd64-i386-netinst.iso" on my laptop. My laptop has a SecureCore ...
1
vote
1answer
819 views

Linux Mint on laptop fails, gives grub error

I am trying to install the latest Linux Mint onto my laptop via a USB stick. The laptop previously had Ubuntu, and it had a separate /home partition. I'm overriding and reformatting the / partition, ...
4
votes
3answers
2k views

Partitioning EFI machine with two SSD disks in mirror

I have two SSD disks, I want to put them in a software mirror RAID. But whatever I do the OpenSuSe installation keeps telling me that due to the partitioning scheme he won't be able to install the ...
4
votes
1answer
9k views

How to create bootable flash for “efi-shell”

Current Intel server chipsets include a built-in "efi-shell" which appears to basically be a simplified 'NIX with a command set suitable for manipulating some nifty UEFI boot options. It is also the ...
2
votes
1answer
871 views

“error setting up gummiboot-efi” on Archboot UEFI install

I recently purchased an Aspire XC600, but am having trouble installing Arch. I haven't installed on UEFI before. I want Arch as the only OS on the disk. I wrote the Archboot x86_64 image to a USB ...
3
votes
3answers
2k 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 ...
7
votes
2answers
472 views

Determine what program is in my MBR code

I've done a lot of partitioning / dual booting on my Macbook Pro. Right now I have Mac OS X installed along with Ubuntu 12.04, with Grub installed on the Ubuntu partition. I am wondering - what is ...
2
votes
0answers
228 views

Boot linux bootloader from Mac OSX

Recently I was running Fedora 17 on my computer which was an HP windows based machine. Unfortunately my computer has a malfunctioning motherboard and will no longer turn on. I removed the hard drive ...
9
votes
2answers
7k views

How to boot EFI kernel using QEMU (kvm)?

Hey guys I'm trying to emulate a EFI enviroment using QEMU (kmv), virtualbox takes 15 minutes to boot in EFI mode using archboot. Using legacy BIOS mode I can boot using this command: ...
14
votes
1answer
11k views

Can GRUB2 share the EFI system partition with Windows?

I have an existing Windows 7 GPT installation, which already has a EFI System partition. I am now trying to install a Linux on a separate harddisk, which is also GPT formatted. I did not find any ...
2
votes
1answer
777 views

Problem at booting Windows from GRUB2 menu made by Debian for itself

I've Asus UEFI motherboard with 2 hard disks, (hd0) and (hd1). I managed to make my Debian Wheezy on my second disk bootable using grub-efi and it boots OK. I also have Windows on the first disk, ...
3
votes
1answer
457 views

How can I tell if I have a bug with my kernel or with my UEFI firmware?

I have a dz77ga-70k motherboard with version 0049 of the Intel firmware on it. Linux and elilo will not boot in uefi mode. The symptoms are that when I run bzImage.efi initrd=initrd.img ro debug ...
5
votes
3answers
769 views

Two EFI disks with Grub2

I bought two SSD disks and as usual I though that installing Windows on a completely separate disk would be the easiest solution, but I can't find any tutorials for dual booting with grub2 (efi). All ...
6
votes
2answers
185 views

Is there a command or method (other than RTFM) to determine if a system has a UEFI BIOS?

My inspiration for asking this is this other question on Ask Ubuntu. One reason I am asking is that I am just curious. I would like to know more about this for whatever value it might have in the ...
3
votes
2answers
2k views

Installing Arch Linux with UEFI Boot and GPT Layout

I'm trying to set up a dual UEFI boot Windows/Arch Linux, and have already installed Windows on a GPT layout through UEFI boot. I now want to fresh install Arch Linux using GPT layout as well, and was ...
10
votes
4answers
6k views

What should I do before dual-booting Windows 7 and Debian on EFI?

I'm about to purchase an Asus motherboard with EFI firmware and wanted to prepare myself for installing Windows and Debian once the hardware arrives. I was hoping that someone who has gone down this ...
6
votes
1answer
1k views

EFI boot to Linux on a MacBook Pro

8,3 MacBook Pro 2011, running Ubuntu 11.10 amd64. Here's the situation. Screen backlight and a few other things only work if booting in EFI, so I need to boot Ubuntu in EFI to get things working. ...
1
vote
0answers
2k views

GRUB2 and EFI - File not found?

I'm running Linux on a 8,3 2011 MacBook Pro. It uses EFI/rEFIt to boot. I was able to install GRUB2 EFI support, and it shows up just fine in the rEFIt boot menu. Everything seems to be working ...