Questions about the Unified Extensible Firmware Interface that finally replaced the BIOS on newer desktops and laptops with the release of Windows 8. UEFI is independent from CPU architectures and supports booting via UEFI with and without secure boot enabled as well as legacy booting via CSM.

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Can't install Ubuntu on my Laptop already running windows 8.1

i followed the steps word by word even searched google for a solution but nothing. I want to dual-boot Ubuntu and Windows 8.1 the problem is I've tried to disable the Fast-boot and UEFI Settings ...
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1answer
24 views

Portable installed ubuntu on a Pendrive that boots on UEFI and BIOS

There seem to be quite few tutorials for that but they are either for having both live and installed, or supporting old 32 bit systems and so on and have some complicated steps. I simply want to ...
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0answers
13 views

Can't boot Lenovo laptop (v570) after installing Ubuntu

No, this is not a 'I want to boot Windows after installing Ubuntu' question, I installed Ubuntu, fully wiping everything, every default settings, but now it won't get past BIOS. It just gets stuck ...
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1answer
50 views

How to create uefi bootable iso?

I am trying to customize ubuntu-14.04.2-server-amd64.iso, but I am unable to make it uefi bootable. First I tried with original iso file: dd if=/path/to/iso/ubuntu-14.04.2-server-amd64.iso ...
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1answer
33 views

How to get OS selection screen?

Recently installed Ubuntu 14.04 along with windows 8.1 in my dell inspiron 15 5547 (Legacy Mode, windows 8.1 in uefi mode), while restarting OS selection window is not displayed. Every time I need to ...
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2answers
25 views

Laptop boots directly to Windows, Ubuntu alredy installed and refind not working

So i have this weird problem on a HP laptop Atheros. I first installed windows 7 and then Trusty Tahr,both on Uefi mode with the gpt partition. The problem is that when i turn it on, it goes ...
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0answers
60 views

Being dropped to emergency mode after upgrading to 15.04 with encrypted hard drive

I had installed ubuntu 14.10 with encrypted lvm and uefi mode on my hard drive. There are two hard drives which are encrypted. The first contains the root file system and the second contains a sharing ...
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0answers
17 views

Dual-Boot Ubuntu and Windows 8 Only Boots to Windows

I have a terabyte external hard drive, with with Windows to Go on it. Recently, I installed Ubuntu onto this drive. The computer that I installed Ubuntu onto the external HDD is a BIOS computer, and ...
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1answer
29 views

Xubuntu 15.04 Gummiboot Kernel Panic

So I installed my new Xubuntu 15.04 in EFI mode. I installed gummiboot via sudo apt-get install gummiboot and activating sudo gummiboot install. On my HP Notebook I have to enter the efi file as ...
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1answer
27 views

Bios/Firmware/EFI upgrade changed network port config

I did a EFI/firmware update on an Intel server board and the next thing I see is that the networking just stopped working... Little deeper and I saw that the NIC port labels were changed from em1, em2 ...
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0answers
57 views

Ubuntu installation VS UEFI on Dell XPS 13 9343

I have heard that there are problems with Ubuntu on the Dell XPS 13 9343, however - I cannot even make the boot menu pop-up when booting from an installation pendrive (lastest Ubuntu, lastest ...
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0answers
12 views

Flashing and Re-installing BIOS [on hold]

dmesg outputs a lot of ACPI issues ,which has been linked to no updates to BIOS. Now, whilst flashing and re-installing a newer version of BIOS(through USB!), will the new BIOS FIRMWARE follow BIOS ...
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2answers
65 views

Ubuntu 15.04 UEFI installation issue on Dell Vostro 3460

I downloaded the RTM ISO of Ubuntu 15.04 (Vivid Vervet), and I created with the latest version of Rufus the UEFI/GPT installation disk. I tried to begin the installation in the UEFI-mode, but it ...
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0answers
11 views

Won't boot dualboot selectio interface by default [duplicate]

So I've been running a dualboot windows 8.1 with ubuntu, and ran into a problem, so I deleted the ubuntu partitions, and removed the grub. Now I've reinstalled ubuntu as dual boot and it works fine, ...
3
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1answer
122 views

Ubuntu 15.04 on USB with UEFI

My desire is to do the following. The computer has W8.1 on the HDD and it is using UEFI I want to install Ubuntu 15.04 on 32GB USB stick in a way that I can install regular updates and it remembers ...
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0answers
38 views

Installing Ubuntu with SSD in a Toshiba Satellite L50-B-137 (PSKT4E)

I have recently upgraded the BIOS in my Toshiba Satellite L50-B-137 (PSKT4E) to the latest (Version 2.00) and I am trying to install Linux Ubuntu on a brand new OCZ ARC 100 SSD drive (480GB). I am ...
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1answer
32 views

Ubuntu fails to install grub on dell optiplex 9020

I have a Dell in which there is a first drive running Windows 8.1 With UEFI, this works fine. In order to install Ubuntu 14.04LTS I had to disable secure boot. A second drive is in the machine, a ...
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2answers
50 views

Can not Boot up laptop after Linux installation

I have a windows 8 laptop. I went to install fedora 21. I deleted the D drive which had nothing on it. I then installed fedora on that partition. I restarted the computer and it booted into the bios. ...
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2answers
66 views

rEFInd showing 3 ubuntu .efi instead of 2

This is not really a problem, though I am just curious to why do I suddenly see 3 ubuntu, instead of the usual 2. It should be grub64.efi and shim64.efi. Though now it is grub64.efi, ...
1
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1answer
231 views

I cannot re-install Ubuntu 15.04 alongside windows 8.1

This question may seem repeated but I have other more issues. I installed 8.1 in my dell 5537 and dual booted it with ubuntu 14.04..I worked well..I installed with alongside windows option..It took ...
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0answers
12 views

Stuck on “Loading initial ramdisk” after live cd change on root filesystem

I am running Ubuntu 14.04 LTS Server with the newest Updates in a Virtualbox VM. It has EFI boot on a 512 MB Partition, /boot on a 300 MB ext4 partition and / on a luks encrypted 7GB ext4 ...
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1answer
32 views

Does Ubuntu support the asus crosshair v formula Z motherboard?

I have been trying to install ubuntu 15.04. I have no errors, and I can load the OS on the flash drive as well as see and play with all my windows drives on the system, but the partitioner freezes and ...
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1answer
21 views

Pointing Grub Rescue to the correct .mod

I've borked my ubuntu installation. It seems to have mixed up whether to use bios grub or efi grub. When I get to grub rescue, I can find all the mod files I need at ...
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0answers
59 views

Ubuntu 15.04 Installer: no disks [UEFI]

could you please help me with my problem: I can't install Ubuntu on my Dell Vostro 5470 laptop. I'm booting in UEFI mode and NO disks are shown in "do something else". It's just blank window. I want ...
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1answer
28 views

Dual Boot Problem in UEFI Mode

I have a HP Probook 440 G2 and it is installed with Windows 8.1 in UEFI Mode. I used Rufus-2.1 software to boot Ubuntu in the USB in GPT Prtition Scheme and tried to install Ubuntu. The OS got ...
2
votes
1answer
46 views

Ubuntu does not boot on mainboard with UEFI

Windows 7 64 bit and Ubuntu 14.04 64 bit were installed on a new SSD on a computer with old motherboard (no UEFI). Dual boot with GRUB2 worked perfectly well: Windows and Ubuntu could be executed and ...
0
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2answers
18 views

Dual Boot: Does data get deleted because the drive is partitioned?

I'm pretty bad at the whole computer literacy thing, but for the most part I can Google things pretty well. From what I've read, partitioning deallocates everything on the partition that is getting ...
0
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1answer
237 views

Installing Ubuntu 14.10 (64-bit) on a Windows 8 bay trail atom tablet

For those of you wondering, this is not actually a question, it's a guide. "How can I install 64-bit Ubuntu on my 32-bit UEFI Bay Trail atom tablet?"
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3answers
48 views

Why Ubuntu isn't installed in UEFI by default?

I have seen some posts about installing Ubuntu in BIOS and in UEFI. In the Community Wiki mentions that UEFI will replace the BIOS in all PCs. Also it mentions that if it is not absolutely necessary ...
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1answer
27 views

UEFI questions after moving to Ubuntu 14.10 finally

I have a couple of questions after I switch to Ubuntu for my main OS on my laptop and they are: Will I have to install a bootloader of sorts into my UEFI to boot straight into Ubuntu?, like without ...
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0answers
39 views

Ubuntu UEIF/Windows 8 dual boot problem

I tried installing ubuntu 14 uefi in dual boot with Windows 8. The installation went well, but now I can't boot on Windows anymore. I can't even see it in the boot manager. I tried to unable/disable ...
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0answers
15 views

How to add memtest86 entry to grub2 menu? [duplicate]

I want to test new memory, but can't find memtest86 entry in grub2 menu. I looked at script /etc/grub.d/20_memtest86+ and found this lines # We need 16-bit boot, which isn't available on EFI. if [ -d ...
1
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1answer
53 views

UEFI Ubuntu installation no longer boots after moving a partition

After resizing moving a large partition on the same drive with Gparted that contains my EFI partition, my Ubuntu installation (15.04 x64) no longer boots in EFI mode. When I try to manually load the ...
1
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1answer
35 views

Windows don't boot after Ubuntu installation in VMware on a physical disk

I have installed Ubuntu in VMware (Windows 7) on a physical disk. It's a secondary disk, not a partition. All worked, no problems. Then i restarted Windows and Windows failed to boot and then Ubuntu ...
2
votes
2answers
93 views

Does the UEFI partition either “MUST” or “SHOULD” be first for some reason? If so why?

In a non-English Ubuntu-it.org wiki page it's stated that the UEFI partition MUST be always placed at the start of the disk. This is not the case in the English Ubuntu Community Help Wiki page. So ...
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0answers
31 views

Unable to dual boot Ubuntu 14.04 with windows 7

New HP Notebook Core i5. First I installed Windows 7 using DVD as it did not boot from USB. Then I installed Ubuntu. Now I am only able to boot Ubuntu. I have disabled secure boot and enabled legacy ...
0
votes
1answer
16 views

Why do I have to repair my booting when swapping harddrives in my laptop?

I bought a new SSD for my Lenovo Thinkpad W530 (I am not sure if hadware is relevant). I installed 15.04 on the new SSD in EFI-only mode with manual partitioning (/efi, / and /home partitions, ...
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2answers
44 views

How do I install two independent Ubuntu installations on a single hard drive with UEFI?

For security reasons I would like to install a secondary completely independent operating system on a single-hard-drive computer using UEFI. Both installations should be able using different LUKS ...
0
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1answer
87 views

How to do dual boot in Windows 8.1 pre-installed laptop with UEFI/Secure boot, and this can cause lost of warranty?

I got an Acer Aspire E15 and came with Windows 8.1 pre-installed, and UEFI / Secure boot, would like to install Ubuntu on dual boot, but I have no experience with laptops that have the system UEFI / ...
0
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2answers
38 views

deleted EFI partition by mistake, cant boot to ubuntu

while installing arch Linux I deleted the EFI partition by mistake. Arch Linux was installed successfully and I made new EFI partition when installing arch linux. I can boot to Arch Linux. When I ...
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0answers
725 views

Ubuntu 15.04 UEFI cannot install - Blank Screen (No Signal.)

As the title says, I go to boot into either the live session with Ubuntu 15.04 or the "Install Ubuntu" option and both give me no video at all. I've the onboard VGA and still nothing. The only thing I ...
0
votes
1answer
137 views

I install Ubuntu 15.04 using Something else option in a new Partition of HDD. But Ubuntu start Directly without let me chose boot option [duplicate]

I am a Windows 8.1 user. I want to use duel boot with Ubuntu. I installed ubuntu 15.04 with something else option. Installed correctly in swap and ext4. But when I start PC its direct goes to Ubuntu. ...
2
votes
3answers
81 views

Problem booting Ubuntu on external hard drive

I have this very weird problem with my Ubuntu installation. I installed Ubuntu on an external hard drive (Seagate 2 Terabytes usb3) and everything seems normal. But when I unplug the external hard ...
0
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1answer
35 views

Install latest Ubuntu in dual UEFI boot with windows 8.1 64bits [duplicate]

I have an 64bits windows 8.1 pc with UEFI and I am not able to dual boot the latest version of Ubuntu 64 bits on it, it says that it doesn't support EFI. Need help pls, and I don't want to change UEFI ...
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0answers
36 views

Problem with grub during boot (Windows 10/8.1, Ubuntu 14.10)!!!!! Only Windows Boot [duplicate]

I've a laptop with Windows 10 ( TP build: 10041 ) and ubuntu 14.10 .... when i install ubuntu, reboots Ubuntu and there is no problem, but if I try to start Windows, in the next rebot, the grub dont ...
0
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1answer
36 views

Install Windows 7 on MBR for Easier Ubuntu Dual-boot

As far as my research and knowledge has shown me, it is easier to dual-boot windows and ubuntu when both are installed on an MBR partition table. However my problem is that every time I try to install ...
0
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2answers
1k views

Kubuntu 15.04 failure to dual boot, missing GRUB menu

I've been dual booting Kubuntu and Windows 8.1 for some time now and just today I upgraded to 15.04 and it's been nothing but problems. Mainly, I can no longer boot into Kubuntu; I don't even get the ...
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0answers
20 views

GRUB has too many unwanted entries after running the boot-repair [duplicate]

I just added a new hard drive. That hard drive was bad..i thought it messed up with my GRUB and boot loader settings...so i did executed boot-repair as it was not going into Windows at all..but ...
0
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0answers
40 views

Boot Ubuntu with only the built-in Mac EFI loader?

I installed Ubuntu 15.04 on a partition of my Mac Pro's HD. I can boot Ubuntu if I use refind. I don't really like refind at all. I was wondering how to boot Ubuntu with just the Mac OS X EFI menu. I ...
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0answers
21 views

do I have to use grub to dual boot windows 8 and Ubuntu? [duplicate]

I'm using a UEFI machine that was pre installed with windows 8. I have installed Ubuntu but I'm only able to boot to windows after the install completed. I want to know if there is a way I can add a ...