Questions about using grub on EFI/UEFI systems relating to configuring, installing or removing grub from EFI/UEFI partitions.

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Installing in encrypted partition under EFI boot

I've been googleing for a bit and can not find an answer yet Im from a FreeBSD background, so you will have to forgive me a little I am trying to dual boot FreeBSD and Ubuntu I want to set up a ...
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1answer
28 views

Installing Ubuntu on a second internal drive in an “independent way” (no boot option)

I have a 120 Gb SSD drive (/dev/sda) where Win7 is installed and a second internal drive (/dev/sdb) that I use for data storage. Both of them have GPT partition tables. Now, I want to install Ubuntu ...
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0answers
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GPT, grub and mdadm. sda drive replaced, raid rebuilt in recovery mode, but now server won't boot

This is how partition table loooks like: (parted) print Model: ATA TOSHIBA DT01ACA2 (scsi) Disk /dev/sda: 2000GB Sector size ...
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1answer
34 views

Dual-Boot Problem with Pre-Installed Windows 8.1 & Ubuntu 14.04

I do understand similar questions already exist. Yet mine seems to be a problem that despite trying hard to address, I haven't been able to solve. Despite having a working Ubuntu LTs 14.04 ...
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20 views

Add grub menu for OS X

I installed Ubuntu 16.04 Desktop on my MacBook Pro, and cannot boot OS X now. My disk partition table is: Device Start End Sectors Size Type /dev/sda1 40 409639 409600 ...
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1answer
38 views

Cannot boot with EFI

I was having problems with repairing my boot loader (grub). My GParted config looked like: I installed another Ubuntu to the free space which restored my grub. But when booting into my old ...
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1answer
142 views

Does this answer work for UEFI computers?

One of my most popular answers is instructions on how to repair grub. Over time, others have contributed bug fixes to the answer. A recent comment, though, made me wonder if it works on newer UEFI ...
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1answer
53 views

Dual boot problem after upgrading to 16.04

During the upgrade to 16.04 something went wrong (related to shim-signed and problems with /boot/efi) and it was not completed. After some work I managed to have everything installed and Ubuntu seems ...
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26 views

Bootable device not working

I have HP-15-du005tu, downloaded the latest version of Ubuntu i.e 16.04 and using rufus. I've made a bootable device but whenever I restart using advanced mode (win 8.1) it always says bootable device ...
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3answers
3k views

UBUNTU 16.04 ERROR INSTALLING GRUB

HI AND SORRY FOR MY BAD ENGLISH. My computer has Windows 10 installed, and when I try to install Ubuntu 16.04, it does not detect Windows 10, nor does it detect Windows 10 in my partitions list. On ...
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1answer
58 views

No GRUB, Boot-Repair-Disk asking me to close package managers… How to proceed?

So I had a perfectly functioning triple boot system (Windows 10, Ubuntu 14.04, Kali Linux 2.0). Tonight I come home boot up my system and don't get GRUB. I tried to trouble shoot from Boot-Repair-Disk ...
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1answer
49 views

Can't boot Windows 7 from USB, GRUB still there

I need to install Win 7 on a computer that previously had Ubuntu 14.04 installed. I created a bootable USB with the Windows 7 ISO on it, but I can't boot from it. From the BIOS/UEFI (not sure) I ...
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38 views

Ubuntu 15.10 doesnt boot (low graphics error)

After trying to migrate my USB installation to my formated (ext4) SSD and failed to do so (How to migrate ubuntu 15.10 to an other disk) I tried to fresh install (using the liveDVD i have ) ubuntu ...
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0answers
43 views

Can't boot into Ubuntu 15.10 without 'idle

I'm using Ubuntu 15.10(EFI 64bit) on MSI GS40 laptop, which has Intel Skylake processor and Nvidia's dedicated GPU. I couldn't boot to Ubuntu's installation stage without giving GRUB's boot option ...
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1answer
49 views

What to do if forgot to enable EFI partition?

I have Windows 10, so I have EFI partition, but during Ubuntu installation I forgot to select EFI partition. Now I always should to turn on UEFI mode if I wanna to use Windows. Can I enable EFI ...
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1answer
34 views

How would I go about dual booting KALI with UBUNTU

I have a USB drive with 8GB plugged into my port for about 3 hours trying to figure out how I go about dual booting Kali onto my Ubuntu. Yes, that is crazy. using ubuntu 14.04 LTS as current OS ...
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0answers
50 views

Dual Boot Ubuntu & Kali Linux

I have the following problem: I have a USB Flash drive on which I have 4 partitions. The first, a windows accessible fat32 partition, the a second partition on which I have Kali Linux, on the third ...
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0answers
25 views

Can someone help with the boot report?

I'm having problems booting Ubuntu on my Toshiba Satelite laptop. Before I had Windows 10 and never had problems with boot. I ran the USB-Live with Ubuntu, installed Ubuntu but now can't boot from my ...
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2answers
108 views

WIndows 8 stopped booting

I have installed Ubuntu 14.04 on a laptop which came with Windows 8 installed. It was working fine for almost a year and I was able to boot Ubuntu and Windows from grub screen but from few days ...
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0answers
190 views

No option to Install Ubuntu 15.10 alongside Windows 10

I am having a problem with installing Ubuntu alongside Windows 10. I do have a basic disk, so that is not the problem. I also booted into the installer from a USB in Windows Advanced Startup. Before ...
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2answers
98 views

Why showing two vmlinuz and initrd.img in update-grub?

shady@shady:~$ sudo update-grub Generating grub configuration file ... Found linux image: /boot/vmlinuz-3.13.0-76-generic Found initrd image: /boot/initrd.img-3.13.0-76-generic Found linux image: ...
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2answers
238 views

Package errors on every install

SO I just installed Ubuntu 15.10 on my mid-2014 Macbook Pro Retina as a standalone partition. Everything works fine and every applications I installed are working too, but I still get a few errors ...
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1answer
196 views

Can't remove or install kernel

I accidentally deleted my /boot partition but I was able to get it back with grub-install I'm trying to chroot and install the kernels again via this guide:How to restore a system after accidentally ...
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2answers
178 views

How to totally remove ubuntu from boot menu after Windows dual boot

I dual booted windows 10 and ubuntu. Now, I don't want the Ubuntu. So I deleted the ubuntu partitions. Next, I used the Windows recovery drive to run bootrec.exe /fixmbr in cmd.So If I power my pc ...
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0answers
125 views

Can't boot form USB in UEFI

I have an HP envy dv6 Notebook (windows 10) and I can't load from my usb. The usb works, I tried on others computers, I already changed the boot order. I tried in both ways, efi and legacy, but the ...
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2answers
29 views

the efi boot order keeps being forgotten

I installed Kubuntu a few days ago, and I have in a partition alongside windows (all UEFI). Right now if I boot the computer the windows boot loader starts and Windows starts, so to start ubuntu I ...
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0answers
72 views

Cisco UCS and Ubuntu

I'm attempting to install Ubuntu 14.04 iso found here http://www.ubuntu.com/certification/hardware/201512-20310/ onto a couple Cisco UCS C220 M4 chassis. The installation happens flawlessly and ...
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1answer
100 views

Installed to external drive, Grub using wrong architecture

I installed Lubuntu on a flash drive as you would an HD (not live/squashfs). But whenever I boot it I get a grub rescue prompt. It says it can't find /boot/grub/i386-pc/normal.mod which explains the ...
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1answer
60 views

linux mac single boot efi question

Linux noobie here.. i have a couple of things going..i have successfully loaded linux on my 2010 mbp. using this process:http://heeris.id.au/2014/ubuntu-plus-mac-pure-efi-boot/ it went very smooth. ...
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0answers
112 views

How to recover ubuntu after converting MBR to GPT?

I have converted disk partition table from MBR to GPT using disk AOMEI Partition Assistant Professional Edition from Windows in consequence I lost grub and therefore Ubuntu from booting though Windows ...
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0answers
63 views

how to move/create efi and grub to second drive (boot-repair)?

I used to have a Windows 8 / Ubuntu dualboot with Windows installed on a ssd and Ubuntu installed on a hdd - the efi partiton lies on the ssd. Now i want to use the ssd otherwise and just want to use ...
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137 views

How to reinstall grub-efi-amd64 on 15.10?

I tried to install winusb by a .deb package for wily found con launchpad.com. It didn't install. The software center just sat there "installing" with no progress. After that, I tried to install ...
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2answers
51 views

What to do with previous EFI partition during new installation?

I have a laptop which came with Ubuntu 14.04 installed. I want to upgrade it to 15.10. But there is a EFI partition of size 200 MB in it. There are total 4 partitions - EFI Ubuntu This is where I ...
2
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1answer
481 views

Accidentally deleted efi partition

So, I really screwed things up... Long story short, I deleted my windows 8.1 efi partition and now cannot boot into windows. Furthermore, I don't even have an efi partition left to create a linux ...
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0answers
20 views

Grub efi amd64 signed failed to install into /target/ [duplicate]

I have a Lenovo B50-30 FreeDos, I upgraded my BIOS. I was installing Xubuntu (xubuntu-14.04.3-desktop-amd64), but during the installation, the following message appears: grub-efi-amd64-signed failed ...
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1answer
60 views

Grub last update (17/11) problem

After the latest Ubuntu, so Grub update, my computer has problems to open immediately Grub for choosing the OS. Appear an error message saying: Failed to open \EFI\Microsoft\Boot\grubx64.efi - Not ...
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1answer
524 views

Can't boot to my usb to install Ubuntu

Recently I deleted Ubuntu gnome desktop from my new laptop dual booting with windows 8 and also repaired the start up so that it would go to windows automatically. However now I want to install Ubuntu ...
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1answer
304 views

Error when installing the grub2 package in /target/

I'm new to Linux and I have only used Windows so far (Currently: windows 8). But for a Bachelor Project at my university, I was advised to use Linux in combination with computations in statistical ...
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1answer
111 views

Fresh install boots into grub

Linux newbie here. Just recently reinstalled Ubuntu and every time I boot, I get thrown into the grub shell. I've looked everywhere, wasted a lot of time and can't track the problem for the life of ...
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0answers
369 views

Enabling SecureBoot

I want to enable Secure Boot on my asus ux303ln laptop to enhance security. This means I do not want to use "shim" bootloader to be able to dual-boot into Windows, and I do want to have my own ...
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1answer
97 views

Make a portable Ubuntu on a USB stick (bootable on Windows 8.1)

This is actually quite similar to a question posted one year ago Make a portable Ubuntu on USB stick (bootable on MacBook/iMac). I meet the same problem on my Lenovo ThinkPad X1 Carbon with Windows ...
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1answer
311 views

Acer Aspire V3 does not recognize my EFI partition

I just installed Kubuntu on an Acer Aspire V3 netbook with a SSD using GPT and the following partition layout: 1 MB unformatted partition with boot_grub flag, 200 MB FAT32 partition with boot flag, ...
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0answers
91 views

Does grub need constant access to bootmgfw.efi?

I'm trying to get a new laptop to dual-boot Kali and Win10. Grub, however doesn't see the Windows EFI install. This answer looks like it should work, but I'm wondering, do I need to add the partition ...
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1answer
354 views

Changing Default Grub Menu, Not Default OS

My question is in regards to changing my default GRUB bootoader. Not the boot order, font, image, etc. I have successfully triple booted both of my laptops. Their default OS's were both Windows 8.1, ...
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1answer
450 views

How to make a UEFI compatble ISO with grub-mkrescue?

I have been following this guide to produce a customized version of Ubuntu. As of now, the structure of the CD is complete. I just have to generate a bootable ISO image with the command: sudo ...
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0answers
115 views

How to get EFI for 32 bit instalation

I have a tablet with intel atom cpu and can't boot 32 bit ISO image in it. I heard that developers don't want to develop this but I wonder what is the challenge on doing so. I tried disabling secure ...
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1answer
46 views

“Fixing Grub” in single boot installation process

I installed Ubuntu 14.04.02 on my 2011 Macbook Pro following the instructions at this page. After the installation completed, the impulse to play with my new toy rushed over me and I took a little ...
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1answer
347 views

“GRUB installation failed” What do I do?

I'm trying to install Ubuntu Studio version 14.04.2 (alongside my Windows 8). Everything seems to go fine during the installation until at some point this message pops up: GRUB installation failed ...
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3answers
1k views

error symbol 'grub_term_highlight_color' not found

My dual boot Ubuntu/Windows installation on a Samsung Series 7 laptop is suddenly broken, I do not know why. I have not made an update, and the laptop was not even connected to the internet when it ...
0
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1answer
160 views

Problem in booting from new installation of Ubuntu 14.04 to a new ssd Hard disk

I try a lot of times to install Ubuntu 14.04 toy a new disk in my desktop. But grub never worked. After reboot always goes to rescue grub command line with the message can “open” the disk see image 1. ...