GRUB2 is the next generation of the GRand Unified Bootloader (GRUB). Ubuntu has used GRUB2 as the boot loader since 9.10 (Karmic Koala). Commonly referred to as simply "GRUB".

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Grub menu at boot time… “holding shift” not working

I read here at this thread that holding Shift during boot can bring up the GRUB menu. However I try holding one or the other Shift keys, tapping, tapping then holding, nothing works. Am I missing ...
3
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0answers
103 views

/dev/sda1 /boot corrupted

I am running a Ubuntu 14.04 on an IBM-Thinkpad X61 tablet (no Windows dual boot) and it seems I have corrupted my /dev/sda1 /boot. Symptoms: When I login to home window, a "System Program Problem" ...
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1answer
32 views

updating grub causes windows to not boot

So when I select windows 7, it bounces back to the boot loader. Only way to fix so win7 can boot is load windows install DVD and bootrec.exe to repair the mbr. Then linux wont boot, only way to fix, ...
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8 views

Grub Rescue madness after changing Partitions

I had elementary OS and Windows 7 installed. In Windows 7 i deleted the elementary OS Partition. After rebooting i got this: error: file not found. grub rescue> So I searched the internet and ...
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0answers
3 views

MAAS - PXE problems

I'm currently trying to set up a maas/openstack environment for testing purpuses, but I've got problems with deploying the nodes. When I start the node that is connected to the private network of my ...
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2answers
31 views

Dual boot ubunuty/windows 10 partition on Dell xps 13

I have a new dell XPS 13 with 500 gb SSD and I want to partition in and install Ubuntu alongside windows 10. Ubuntu for me is primarily for work and I might use it quite a bit, but I am not a Ubuntu ...
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0answers
11 views

Can't boot to Windows from grub

I had a dual boot system with Ubuntu 14.04 and windows 8.1 on my laptop. Recently, I upgraded windows 8.1 to windows 10. As opposed to my fears of losing grub or ubuntu everything was alright, but now ...
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1answer
16 views

restoring grub file

Yesterday when i restarted my computer it is showing screen with error : No bootable devices found So I am trying to restore my grub file using this guide but my boot repair doesn't have both ...
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1answer
3k views
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0answers
16 views

Cannot boot 15.04 from Grub2 on UEFI

Here is how my system is set up (GPT partitioning): First 32 GB: Windows 10 Professional x64 partitions and EFI FAT partition Next 24 GB: Ubuntu 15.04 x64 root ext4 partition Next 8 GB: swap Rest of ...
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0answers
17 views

Grub Rescue Prompt, Booted from live usb, Missing config file in grub dir, bootRepair tool doesnt help

I installed Ubuntu 14.04 along side Windows 7 professional. When I attempt to boot I am given a Grub Rescue> prompt. when I type the ls command, it lists the partitions but when I ls the individual ...
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0answers
25 views

windows 10 not booting after Grub2 upgrade

I have two hard drive, with 3 OS: Ubuntu 14.04, Ubuntu 12.04 and Windows 10. Ubuntu 14.04 is on one drive, while Ubuntu 12.04 and Win 10 are on the second HD. [I also have some old small hd that i ...
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1answer
30 views

I'm confused about my bootloader [on hold]

Sometimes I reset my desktop and press F2 and then GRUB loads up. But some other times I reset and press F2 and then the Asus UEFI BIOS Utility loads up. I'm new to the Asus UEFI Bios utility and ...
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2answers
31 views

How to handle GRUB configuration on a multi booted system?

I just finished changing the boot order for GRUB2. I have three operating systems installed on the computer. I have Windows 8.1, Ubuntu Linux 15.04 and Mint Linux 17.2. I followed Marve's answer here: ...
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1answer
22 views

Restore EFI from Windows after Windows 10 upgade broke boot list?

I updated to Windows 10 late July, and it deleted all of the boot entries on my computer. I was able to find the correct Windows boot efi file, and added the option to boot, but I could not find the ...
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0answers
14 views

Kernel panic - not syncing: VFS: Unable to mount root fs on unkown-block(0,0) [on hold]

after a reboot I get the following error message: The grub menu: I can boot the system by selecting previous version->... 3.13.0.64-generic (/dev/sda1) in the grub. Here an image of the boot ...
3
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1answer
4k views

What location to put bootloader, when running multiple drives and partition

I have Win8 on my desktop, where a 120G SSD is used to run windows and some select applications, while I have a 2TB HDD to provide basic file storage and where possible, install applications instead ...
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0answers
7 views

Kernel panic attempted to kill initexitcode=00000009 Dell inspiron 3000 series with ubuntu kernel 3.13.0-62-generic

I have a Dell Inspiron 14 3000 series with Ubuntu. I keep getting a kernel panic failure to sync attempted to kill init. I did a factory reset and tried a different kernel. currently it is ...
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1answer
4k views

Problems booting Ubuntu, “gave up waiting for root device”

I had very odd things happen after I decided to upgrade my Ubuntu 12.04 installation to the newer 13.10. I decided to upgrade version by version to avoid losing my configuration. The upgrade from ...
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10answers
7k views

Windows 10 upgrade kills grub and boot-repair doesn't help

I've just upgraded to Windows 10 from Windows 8.1 on my partitioned laptop that has Ubuntu 14.04 installed. Grub no longer appeared on boot so I ran boot-repair from an Ubuntu liveUSB. This didn't ...
25
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2answers
77k views

How can I change/convert a Ubuntu MBR drive to a GPT, and make Ubuntu boot from EFI?

I recently have upgraded my PC, my new Motherboard (ASUS M5A99X EVO) uses UEFi instead of the regular MBR option. I have a Ubuntu 11.10 installation that I did when I had my previous hardware (MSI MS ...
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0answers
4 views

Busybox initrmf disk by UUID not found ubuntu 14.04

I am aware there are few more questions about this problem, but this is slightly different. I am running Ubuntu 14.04 and windows 8.1 on a dual boot Samsung laptop. This setup has been working ...
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1answer
20 views

Location of grub on gpt partition

As far as i undersood the grub program is located fully in the efi partition if i have gpt partition scheme instead just as a link like it was in the older mbr. So now if i remove linux partition will ...
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0answers
24 views

Reinstall GRUB to partition?

Recently my BCD corrupted, so I reinitialised it from a LiveUSB, and added my Ubuntu partition back to it. Unfortunately the kernel isn't loading, so I thought to reinstall GRUB. The results below ...
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0answers
22 views

deleted linux mint from win 8.1 dual boot and cannot reinstall linux [on hold]

Until yesterday i had a dual boot of windows 8.1 with linux mint 17.2 Rafaella Cinnamon x64bit.Via the terminal i deleted something that i shouldn't and then when i rebooted the pc ,linux stuck at the ...
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0answers
10 views

Ubuntu does not appear in Grub, Boot Repair goes on indefinitely

I installed Ubuntu 12.04 (32 bit) in my desktop alongside Windows 7 using unetbootin by making separate partitions for / and /home. Installation went fine, but after restarting the Grub menu showed ...
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0answers
8 views

grub2 insmod Secure Boot

Will grub2 load signed grub modules when the system is set to Secure Boot? Where are signed grub modules? How can I tell if a grub module is signed? I have my system set up to boot Windows or ...
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3answers
4k views

Can't access BIOS and installing a windows hard drive

Built new computer: AMD FX-8320 Eight-Core Processor × 8 9.7 GiB RAM Graphics GeForce GTX 650 Ti BOOST/PCIe/SSE2 Ubuntu 13.10 64-bit Desktop Computer 1 TB HardDrive BIOS Type, UEFI BIOS ...
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0answers
14 views

make grub messages remain visible

Is there anything I can do to make grub messages stay visible long enough for me to read them? In particular, is there a way to change the grub interface from the (apparently) character mode graphics ...
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0answers
4 views

tri-boot boot loader issue

hi guys I've been trying to set up a tri-boot on my new system all on one drive just separate partitions. I installed a hackintosh of OS X Yosemite, Windows 10, and Ubuntu 14.04.3. I've finally gotten ...
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0answers
28 views

Ubuntu 14.04, Windows 10 dual boot problem GRUB

I have just upgraded my laptop to Windows 10 from Windows 8.1. However, every single time I select windows 10 from the grub menu, the windows 8 loading screen comes on first then it changes and boots ...
0
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1answer
50 views

loopback module for grub with secure boot

I am building a multi-boot usb stick with ubuntu derivatives. I followed several tutorials found online: essentially, you put the isos on a usb stick and then you boot them using grub, which is ...
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0answers
14 views

Deleting an a ubuntu and windows 8 dual boot and replacing with only ubuntu

I already have windows 8 and ubuntu 15.04 (dual boot) but I want to install ubuntu 14.04 LTS edition and make it my one and only os.I saw an option during the ubuntu 15.04 installation to remove ...
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27 views

Ubuntu 14.04.3 Installation Broke Windows 10 Boot

I installed Windows 10 Educational edition today on the first of three partitions on a Toshiba Satellite and then proceeded to install Ubuntu 14.04.3 to the second of the 3 partitions. Ubuntu will ...
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0answers
13 views

accessing GRUB after getting black screen after installation

I'm installing Ubuntu 14.04 LTS on an old macbook pro (2007, version 3.1, Core 2 Duo with nvidia graphics card Geforce 8600 M GT). For the live-version to work, I had to add nomodeset to the ...
0
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1answer
27 views

Configuration for green tty's foreground and boot text after grub menu

I have set up my system (Ubuntu 14.10) for a text boot up. I need to configure my ttys and boot in such a way that it shows green font for boot messages and ttys.Right now, after the grub menu(which ...
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0answers
8 views

How to add CD/DVD to boot sequence

I have a macbook pro that dual boots Ubuntu and OS X. When I enter grub on ubuntu with a bootable CD inserted, I don't get an option to load from the CD drive. How can I allow Ubuntu to start to boot ...
2
votes
1answer
531 views

Multiple Windows options in Grub Menu

My system has 2 OS: Win 7 x64 and Ubuntu 12.10. I'm getting 2 Windows boot options: "on dev/sda1" and "on dev/sda2". What does this mean? What implications does this have for my continued Windows ...
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0answers
24 views

Cannot Install/Boot Ubuntu

So this is my first experience/attempt with Linux. I have been trying to install Ubuntu v14.04 on an old MacBook Pro 17" 2.4GHz Intel Core 2 Duo. Each time I try to Live-Boot from the USB, I get an ...
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0answers
33 views

how to remove the only OS ubuntu14, install win8.1

dual win8.1 and ubuntu 14 used well, then I delete the ubuntu partition on disk managerment of win8.1. reboot it. then appears grub and can't enter BIOS, maybe is related to uefi. I accidently choose ...
0
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1answer
3k views

Burg + UEFI + Win 8 multiboot

Intro: After some trail and error I've managed to install Ubuntu 12.04 64bit on my Win 8 preinstalled Lenovo Ideapad Y500. So far I've had two problems: Grub detected the windows 8 install as a ...
0
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1answer
22 views

stuck in GNU grub with no OS

Linux novice here however I've been playing around with Ubuntu and ultimately came into a bug in 15.04 and wanted to revert back. I decided to install os-uninstaller to completely wipe ubuntu OS off ...
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2answers
6k views

How do I open the boot menu?

I want to uninstall 12.04 and install Ubuntu 13.04 instead. When I was installing Ubuntu 12.04 from Windows 7 opened the boot menu F12. I have read that on Ubuntu to enter the boot menu I have to ...
0
votes
1answer
32 views

After upgrading GRUB, cannot boot Windows from rEFInd

I'm triple booting Ubuntu, Windows 7, and Mountain Lion from a single hdd in my Macbook Pro 5,3. Somehow, when I got everything set up, I had two options to boot Windows from rEFInd: one that read ...
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0answers
13 views

Unable to install Grub2 on any drive

Installing Ubuntu-Mate Desktop Amd64 15.04 (same problem with Ubuntu Desktop Amd64 14.10) for the first time, on Dell Studio XPS. Only let me choose an external (USB) hard drive; install partitioned ...
0
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1answer
28 views

Two windows entries in the GRUB list

everyone. I am not new to ubuntu environment but I use it as a secondary os. Recently, I had to reinstall ubuntu as dual partition to my windows. When I try to customize my grub order, I noticed two ...
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24 views

Ubuntu 14.04 Grub [duplicate]

I want to modify /etc/default/grub to make the default timeout 0 then run sudo update-grub or sudo grub-mkconfig -o /boot/grub/grub.cfg Neither does the job any ideas?
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2answers
1k 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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1answer
3k views

ubuntu 14.04 Grub Rescue error

So I installed linux (ubuntu) yesterday on a fresh hdd with a disk. It worked fine till today when it froze after I had had it in sleep mode and I had to turn it off and on again to be greeted with a ...
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2answers
11 views

How can I install Ubuntu onto a software RAID 10 array?

I'm planning to set up a low-traffic server using RAID 10 with four disks. I'd like to have Ubuntu 14.04 installed onto that RAID array. I've seen plenty of guides explaining how to set up RAID 10 ...