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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Ubuntu keeps putting itself in EFI?

I gave Ubuntu a go today, but I found out it wasn't really my thing. But for some reason, I cannot seem to delete Ubuntu's EFI file (grubx64.efi) as whenever I try to delete it, using methods such as ...
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2answers
34 views

Linux Won't install from LIveUsb

So I can no longer install Linux from USB drive. I have previously, using the same ISO's and unetbootin been able to install Kubuntu, linux mint, ubuntu gnome. I'm using a Dell Inspiron 15 7000 series ...
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0answers
17 views

Grub Bootloader installed twice while dual booting ubuntu and windows 8.1

This is an odd situation: I bought a brand new hp desktop that came with windows 8.1 installed. I used the automatic option in the Ubuntu installer labeled "install alongside windows". It all ...
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1answer
22 views

GRUB not installed correctly by ubuntu server manual process?

symptom: can not boot from SSD after installing ubuntu server 14.04. BIOS menu keeps returning back. No dual booting. setup: Lenovo T430s with windows 8 preinstalled. BIOS boot menu supports both ...
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22 views

Dual boot - Ubuntu Live makes Grub disappear - Windows 8.1 with Ubuntu 14.04

I have setup a dual boot (Windows 8.1, Ubuntu 14.04 with LVM) with the Grub menu having Windows as default, working just fine. However, every time I need to boot again from Ubuntu CD live, it messes ...
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1answer
25 views

cd rom boot device not deteced

i was considering going back to windows to play games that i bought earlier that is for windows only, when i insert my windows CD disc and i restart my computer. i press f9 during boot to select boot ...
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1answer
25 views

Install Ubuntu/Win8.1 dual boot with UEFI and 4 primary partitions [duplicate]

I want to install Ubuntu in dual boot with windows 8.1 in my Acer V3-572G-75CA. The partition situation is the following: A. 600MB: recover partition B. 300MB: system EFI partition C. 914GB: ...
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67 views

Ubuntu 14.04 on UEFI systems (Lenovo T540p) [on hold]

Just today I've ordered Lenovo T540p and while googling a bit for this leptop, somehow I stumbled upon a bug which bricks the computer when trying to install Ubuntu. ...
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0answers
30 views

Is there a way to boot into grub on a mac rather then OSX?

I have successfully installed Ubuntu 14.04.2 on a Mac Mini(late 2014).Now I can get to the new installation by pressingAlt > EFI BOOT to get to GRUB and selecting Ubuntu to boot the OS. My question ...
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0answers
13 views

Windows 8.1 Dual Boot Ubuntu 14.04 - dmraid and fixpart

I'm trying to install Ubuntu 4.14 on dual boot with Windows 8.1, but when beginning the LiveUSB the Ubuntum, the partitions created by Windows 8.1 are not recognized, reports that all is HD as ...
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1answer
33 views

Kernel Panic block (2,0)

This is my first question here and I'm trying to give as much information as possible: I tried dualbooting Linux Ubuntu (first Gnome then regular Ubuntu) with windows 8 on my Lenovo U310 Ideapad. I ...
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2answers
60 views

How to solve “boot in insecure mode” error?

I'm trying to install Ubuntu 14.10 x64 on my laptop. But I always get "booting in insecure mode" message and then nothing happens. My laptop has BIOS Legacy not UEFI. There's any option about security ...
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0answers
45 views

No GRUB menu after installing Linux Mint 17 [closed]

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 ...
2
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1answer
73 views

Dual Boot Win8.1-Ubuntu 14.04 - Cannot load Win8.1 after reinstalling Ubuntu

As suggested by the title of the topic I'm having troubles with the dual boot of Win8.1 and Ubuntu 14.04.....forgive me if the post is gonna be a little long, but I guess it should be better to ...
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1answer
56 views

How can I disable Windows 8 Fast Boot if I don't have Windows 8?

I've been searching around for this for a while, but I haven't found anyone else with the same problem. Guess no one made the same stupid mistake. I have a Windows 7/Ubuntu computer that is ...
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1answer
88 views

Dual boot Win8.1 and Ubuntu on Lenovo PC's in UEFI mode

First my compliments for this post: Installing Ubuntu on a Pre-Installed Windows 8 (64-bit) System (UEFI Supported) It explains the dual boot installation very well. The post also says that ...
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0answers
27 views

Does the Ubuntu installer create a hybrid MBR partition table on EFI systems?

I have a MacBook Air that previously ran Fedora with a dual-boot Windows side for a few engineering tools. I recently switched back to Ubuntu, installing Ubuntu over Fedora using the same EFI boot ...
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0answers
13 views

Lenevo G580 Model 20157 can't open bios menu [migrated]

I am facing problem in opening the bios menu by pressing the system rescue botton which bring up the CMOS menu under which there is bios menu where I can change the UEFI/Legecy mode or change the boot ...
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0answers
24 views

Empty /boot/efi directory

Currently running 14.10. When I first installed rEFind I could access the refind.conf in /boot/efi/EFI/refind. Then after rebooting, /boot/efi becomes an empty directory and the only was I found I can ...
1
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1answer
26 views

Cannot get Ubuntu to boot besides Windows 8.1 on an HP ProBook

My HP ProBook 4540s has Window 8.1 installed, but I need Linux (Ubuntu) as well. So I installed it after making the Windows partition smaller. The system directly boots into Windows bypassing grub. ...
1
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1answer
30 views

Partitioning for dual boot [closed]

My motherboard is a Asus am1l-a with a uefi bios. I have a 120 gb ssd and a 3tb hdd I plan on adding another 3tb hdd. I plan on installing Ubuntu as my main os and Arch as a secondary just for messing ...
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1answer
117 views

Need to reinstall boot loader on Dell XPS 13 (9343) - no dual boot

Being impatient and willing to wait until Dell comes up with their new version with ubuntu preloaded, I am trying to install 14.04.1 on my brand new XPS 13 (9343). I did few dry runs with a USB ...
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0answers
42 views

can't boot Windows 7 after installing (x)Ubuntu 14.04 i686

I have a laptop with UEFI, but without legacy mode. This morning, I installed xubuntu LTS on it, and after some trouble, like the GPT corrupting (but the protective MBR was fine so gdisk restored the ...
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0answers
16 views

Dual Boot - Boot menu Entry Issue

I have Installed ubuntu 14 latest version by creating a separate partition in windows 8.1 preinstalled in Sony VAIO by using various tutorial in this community. For the first time ubuntu worked well ...
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1answer
24 views

Ubuntu 14.04.01 corrupted

I installed 14.04.01 on a Macbook Pro purchased in 2009. For the install I made the mac an Ubuntu only machine. I had to reinstall to try to fix an error i caused and in the process corrupted the ...
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1answer
33 views

Secure dualboot

ubuntu 14.04 here. I'm using a dualboot with windows 7 pro installed first. So far so good, i just succeeded in installing both on the hard disk in separate primary partitions. However when in ubuntu ...
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1answer
28 views

Can I install 8gb of memory to full Macbook 5,1 Ubuntu install?

Seems that 8gb of memory is not stable in original Macbook 5,1 if I'm not running "Mac OS X 10.6 "Snow Leopard" or higher and have Boot ROM Version MB51.007D.B03" ...
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0answers
70 views

Ubuntu 14.04 & 12.04 on Asus EeeBox PC EB1037 hangs at boot, EB1033 works fine

We're having issues with Asus EeeBox PCs, specifically the EB1037. We also have the EB1033, but those seem to work without issue. I believe the main difference is BIOS vs UEFI and better GPU on the ...
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2answers
50 views

Another “why-does-it-boot-straight-to-windows8-after-installation-is-done” question

Ok, I know that this has been asked a thousand times, but I've spent the last 5 hours trying to setup my Toshiba Satellite to dual boot 14.04 and Win8.1 and I'm at the point where throwing the laptop ...
0
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0answers
19 views

GRUB refuses to uninstall

I recently uninstalled Ubuntu and reinstalled it on an external HDD. By mistake I selected my laptop's ssd as the location of the bootloader. I decided to do the install all over again and this time ...
0
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1answer
55 views

Creating a UEFI bootable Win7 USB stick

I'm using winsb to create a bootable usb stick. In terminal I enter this command: winusb --install'/home/obaid/Downloads/Windows 7 Home Premium SP1 (64 Bit)/Windows.iso' /dev/sdb It returns an ...
0
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2answers
75 views

full Lubuntu installation on USB (UEFI capable)

I want to do a full Lubuntu installation on a USB stick that can be booted in UEFI mode. I do not want persistent Live USB but a full Lubuntu installation (which happens to live on a USB stick) and ...
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votes
1answer
56 views

No HDD in boot order in BIOS in Asus x555LA

Today I bought a brand new ASUS X555LA laptop with Window 8 pre-installed. So I tried to install Ubuntu 12.04 64bit using a USB flash drive. My first boot was USB (not UEFI) and I was successfully ...
0
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0answers
12 views

Can I delete Ubuntu in Efi BIOS from Legacy?

Just recently, I decided to delete my Ubuntu 14.04 LTS in my UEFI Bios (Acer laptop). I made a Windows bootable device to install Windows and delete the Ubuntu normally (as suggested by some sites I ...
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0answers
57 views

System doesn't have any USB option

I was trying to Install ubuntu to my Lenovo Yoga 2 (1051-F) tablet. But when I restart with fast boot disabled it gives "System doesn't have any USB option" message. So I assume that OTG on my tablet ...
0
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1answer
73 views

Creating a UFI-bootable Live Ubuntu *DVD* with a Windows 8.1 machine

Most or all of the AskUbuntu posts on this subject seem to wind up talking about either USB keys or CD's. I know Ubuntu 14.10 doesn't fit on a CD, and I don't have a USB drive. I'm running Windows ...
1
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1answer
35 views

Ubuntu 14.04 In uefi mode

I have read that Ubuntu 14.04 can be booted and Installed In Uefi (secure boot mode) as I don't have a Legacy boot on my Asus Notebook I have tired to boot it this way and it always go's back to ...
1
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1answer
32 views

Not able to Boot Ubuntu after BIOS update

Device name: HP Pavilion 15-n205tx Notebook PC I have installed Ubuntu 14.10 and everything was OK but after I have updated my BIOS, it gave me an error that file is missing or corrupted.. and it ...
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0answers
37 views

grub boot repair, change boot order in win7 uefi

I have a corrupted grub file; hoping the grub boot-repair will do the trick. I burned it to USB using unetbootin. USB will only load in legacy mode, but cannot perform the actual repair due to ...
0
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1answer
41 views

Dual Booting UEFI After bad Install, What happens to old Boot Loader?

The short: I accidentally installed 32bit 12.04, and choose to 'install boot loader' on the dev/sda (or 'main' the one that has all the memory) drive. Both windows and ubuntu work, only after changing ...
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0answers
17 views

How to install Ubuntu Desktop Next 15.04 on Asus Transformer Book T100ta [duplicate]

Please help me to install Ubuntu Desktop Next 15.04 32Bit on Asus Transformer Book T100TA (step to step) Thank you
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1answer
58 views

Can't install from usb after messing up UEFI

I messed up my dualboot while experimenting (I still have Windows 8 installed) and now I want to: remove GRUB that's still lingering on my laptop, be able to boot from usb again, install Xubuntu ...
0
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0answers
18 views

Issues with dual boot [duplicate]

I recently installed Ubuntu 14.04 onto my HP Envy. It came with Windows 8 from the factory and I erased that partition to run just Ubuntu. Before installing Ubuntu I did not disable quick boot and now ...
0
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1answer
58 views

Unable to boot from cd or live usb on Toshiba satellite U945-S4140

I am trying to completely switch over to ubuntu from a my toshiba ultrabook. Link to product page: http://www.toshiba.com/us/computers/laptops/satellite/U940/U945-S4110 I previously had linux mint ...
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0answers
50 views

Ubuntu UEFI boot on ASRock Z77 Extreme4 motherboard

I have an ASRock Z77 Extreme4 motherboard with Windows 7 installed on an SSD. I bought a 1TB HDD to install Ubuntu on. I have it installed and the OS itself works just fine (I have confirmed this by ...
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0answers
54 views

ACPI tables/DSDT tables not available in Ubuntu 14.04. How to restore?

I am working now for 3 weeks at following problem. I wanted to install Ubuntu 14.04 on a new ASUS UEFI PC. Here was my first problem description with a question, but nobody answered: Has the ...
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1answer
42 views

Dual boot Windows 8.1 BSOD on startup because resize partiton

I've installed Ubuntu 14.04 beside Windows 8.1 on my laptop with UEFI bios. Everything works fine. One day I wanted to extend my ubuntu partition: I loaded laptop to windows, removed some not using ...
0
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2answers
102 views

rEFIt - rEFInd - Grub2…what is the “right way” for Ubuntu 14.10 on a Mac:

Can someone please help me to understand the “right way” (if there is such a thing) to run Ubuntu on an EFI computer (specifically a 2012 iMac -- I have Ubuntu 14.10 installed on this iMac, on ...
0
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1answer
32 views

Unable to install 14.04 from boot disc on windows 8.1

I have followed this guide to install ubuntu to the same drive as a pre-existing windows 8.1 installation. I have got up to installing ubuntu without any issues where I encounter either a blank ...
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1answer
76 views

efibootmgr cannot launch OSX yosemite (only showing folder image with question mark)

I have a macbook pro with freshly installed yosemite (100 GB) and freshly installed Ubuntu. To boot I use efibootmgr. My partition layout is: /dev/sda1 40 409639 409600 200M EFI ...