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 shows “lsb_release -i -s 2 …” instead of “Ubuntu”

After doing apt-get update my grub shows s "lsb_release -i -s 2 ..." instead of "Ubuntu". How to make it shows back "Ubuntu"? Of course I can edit it manually in /etc/boot/grub.cfg. But every doing ...
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2answers
56 views

Dual boot windows 8 - ubuntu ; upgrading to windows 10

I decided to upgrade my windows 8 to windows 10. During the installation process, the computer rebooted and I got into the grub console, without having my usual menu. I was able to proceed to the ...
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Hyper-V Ubuntu initramfs on reboot

On the virtual machine when I update grub (sudo update-grub) and restart I get the BusyBox initramfs shell on boot. I have a checkpoint on the machine so I can easily go back to just before I ran the ...
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Why boot-repair on ubuntu 14.10 not detects windows 8.1 for grub

Heres the partition information http://paste.ubuntu.com/11967871/ I do the install and remove the windows boot partition. Now when i run boot-repair does not show Windows option to boot. Tks for any ...
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1answer
9 views

My linux pc is corrupted and showing this error “error: no such device: a029261a”

My linux pc is corrupted and showing this error "error: no such device: a029261a" How can I get my saved documents back please tell me or restore the files.
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15 views

Ubuntu live cd not detecting existing 15.04 partition

I have been using Ubuntu 15.04 since it was released. Today, I had to reinstall Windows 7 for some work requirements. The windows installation went well, and as always, grub had been erased. So now, I ...
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11 views

Booting USB with LiveCD GRUB

Under VMWare Player, I cannot boot directly Ubuntu 14 from an USB drive, so I would like to start with the LiveCD and boot from GRUB, issuing a custom command. Is that possible? What should be the ...
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7 views

GRUB wont recognize ubuntu

I just have installed ubuntu and than red hat linux enterprise after it and now my GRUB menu just shows Red Hat and when I insert Ubuntu disc and try to install it it says Ubuntu is already installed ...
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1answer
77 views

Dual boot Windows 10 Ubuntu14.04 problem

I'm sorry if this question has been asked before, but I couldn't find a solution that worked for me. I recently got a new laptop with Windows 8.1. I added an SSD and installed Windows 8.1 on that ...
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2answers
57 views

“Error: Invalid signature” when configuring dual boot Ubuntu 14.04 and Windows 10

After installing the Windows 10 upgrade on my laptop, it ruined the grub boot manager, and I could only boot in windows 10. I fixed the boot manager using a live cd with the boot-repair tool, but it ...
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1answer
26 views

fail to load - grub rescue>

I had dualboot with windows and linux, I tried to change size of windows C: volume and after reboot, it doesn't load ends with grub rescue shell. If I trun on UEFI boot in BIOS it ends with "No ...
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1answer
26 views

How do I make my computer automatically boot into Windows instead of Ubuntu?

I have dual-OS's on my computer and when I turn it on it will automatically boot into Ubuntu. I am only able to get into Windows if I manually make a selection in what I think is grub (I am new to ...
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16 views

Help! (initramfs) failed boot

I cant boot to my ubuntu 15.04, after boot I get to initramfs. After looking for solutions online and here, I'm not sure what I can do to get back my OS and files... I introduced the command blkid ...
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4answers
659 views

Windows 10 upgrade lead into grub rescue

I was dual-booting Windows 7 and Linux Ubuntu on my desktop, and today is the day they gave out free Windows 10 upgrades. How exciting! I got the update, and it was installing, and I left to go take ...
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0answers
12 views

GRUB 2 dual boot freeze for a few seconds

Sorry for asking this question again, asked it here a long time ago but didn't get any answers. Since I setted up dual boot with Ubuntu and Windows 8 I have this "problem", grub menu shows up, if I ...
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2answers
25 views

Help! First time setup password broken! [duplicate]

I tried downloading Ubuntu 14.04 onto my old windows vista laptop. The installation went fine, but when i loaded it up for the first time I got to this screen: Ubuntu 14.04.2 LTS Linux tty1 Linux ...
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0answers
9 views

Multiboot and same /boot

I have a Win8 partition and some Linux on my laptop. I was wondering if it would be right to create a partition /boot and every time that I install a new linux overwrite it. Will this work or I will ...
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0answers
29 views

How can I boot from a USB device via grub shell or initramfs?

I recently got my Dell XPS 13 with Ubuntu 14.04 preinstalled. After some time I tried to update Ubuntu (big mistake) just to find out that it doesn't work out of the box and there are some issues to ...
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3answers
45 views

Can't boot after boot-repair

This morning starts with ubuntu updates installation, which unfortunately freezes at some point. I hard-rebooted my laptop and got grub> command-line. There I tried manual boot from each of two ...
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1answer
29 views

Can I delete my most recent kernels

Yesterday I asked about problems I am having with my laptop computer Having problems booting my Lenovo laptop Basically the problem is that all recent kernels are failing, whereas old kernels still ...
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1answer
27 views

Grub,Ubuntu bootup [on hold]

I am using Ubuntu 11.04. One fine day something went wrong. Instead of loading Windows directly as set by me initially, it started showing me the grub command line. Once I type exit, it shows me ...
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1answer
17 views

Why is this grub-install not working

I am trying to create a Windows bootable USB on Ubuntu. However, while installing grub onto the USB with this command: grub-install --target=i386-pc ...
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0answers
55 views

How To Restore Access To 3 Distros After Installing Windows 8

I intend to install Windows 8 on my machine after being exclusively on Linux for a while so that I can upgrade to 10, learn it, and hopefully help anyone else who needs help with it, but first, I need ...
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2answers
52 views

Ubuntu Server Fails to boot from USB with External Drive

I recently installed Ubuntu Server 14.04 onto a 32GB pen drive. This is used as the main drive for an Intel NUC. -System- Intel Nuc (i3 D34010WYK) - Headless Sandisk USB3 micro pen drive (used ...
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0answers
9 views

How to password protect grub menu from changes to get into the root shell

Try to password protect through the /etc/grub.d/00_header and put in the cat lines to do so but I can still change what I want from grub.
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9 views

Unable to acces BIOS setup menu

Firts, sorry for my english level, I'm french ! I would like to install in dual-boot windows 7 and Ubuntu, to do this I must acces to my BIOS at the startup of my computer but when I want to acces my ...
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1answer
30 views

update-grub failing ubuntu 14.04 (wubi)

When I try to run sudo update-grub, I get the following error: Generating grub configuration file ... /etc/grub.d/10_lupin: 26: /etc/grub.d/10_lupin: data: not found Any ideas what ...
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0answers
26 views

Ubuntu 15.04 Visual Glitches

I reinstalled Ubuntu 15.04 onto my computer, and I am receiving some strange graphical/visual glitches when I boot up. First off, there is some black terminal grub screen that comes up, tells me my ...
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2answers
34 views

Uninstall Kubuntu from a dual-boot with Ubuntu?

I have a multi-boot system with Windows 7, Ubuntu 15.04, and Kubuntu 15.04 installed in that order. At the moment, I think my system boots through Kubuntu's GRUB. My Windows is installed on an NTFS ...
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2answers
27 views

Ubuntu on 32-bit UEFI - optimal solution

I have a computer (Asus T200TA) with 2G RAM and 32-bit UEFI [Yep, what a wonderful idea to put 32-bit UEFI!]. I have two options: Install a 64-bit system, boot manually and install grub-efi-ia32. ...
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1answer
26 views

How can I edit the boot listing in ubuntu14 [duplicate]

I want to hide some of the list from boot menu.Is it possible?
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0answers
115 views

Windows 10 + Linux Mint 17.2 [on hold]

I installed Windows 10 over an existing windows partition on my system. Now I can't boot into Linux :( I've tried booting from the Linux live CD and running boot-repair but I get the an error as shown ...
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1answer
20 views

Having problems booting my Lenovo laptop

I reported a bug on this issue and have had zero response http://bugs.launchpad.net/ubuntu/+source/grub2-signed/+bug/1474342 The problem is that I can no longer turn on my laptop and expect it to ...
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0answers
12 views

Ubuntu 14.04 boot error after system update [on hold]

Kindly help me with this issue.... http://paste.ubuntu.com/11936041/
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2answers
16 views

boot-repair windows not listed

today I installed Windows 8.1 and it broke my grub. I tried to run the boot-repair GUI on a live session of Ubuntu but after the restart of the PC the grub displays ONLY Ubuntu. Before the ...
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0answers
10 views

Can't switch to TTY / virtual console, 14.04

Running Ubuntu 14.04 on a 2008 MBP (3,1). Dual booting with rEFInd. Pressing CTRL+ALT+F# does nothing at the greeter or once logged in. I have nomodeset in grub, if I remove it I can't get ubuntu to ...
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0answers
11 views

Unable to enter passphrase for encyrtion - screen looks weird

I have two PCs with encrypted / (home is not separated) partitions. On both i struggle with entering my pass phrase to decrypt the /. One PC has an ATI VGA card with the default driver and the ...
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1answer
10 views

Stuck at grub. Keyboard won't work

After a power outage, Ubuntu got stuck at Grub. But for some reason my keyboard won't work. I cannot even get to the bios. My keyboard does not receive any power! (It does work properly after booting ...
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1answer
30 views

Windows 7 reinstall now boot is broken

I had a virus on the Windows 7 part of my pc. I had to format the drive using the ubuntu side. then reinstalled fresh on the w7 part. originally, it only booted to w7 and then I have been trying to ...
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0answers
3 views

grub2: error: /vmlinuz-3.16-ucs109-amd64.efi.signed has invalid signature [migrated]

I am using a derivative of Debian, called Univention Corporate Server. It's a nice appliance that I use for my home server. Yesterday I upgraded to the newest version and since then my server does not ...
0
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0answers
15 views

Ubuntu single install SSD keep deleting data

I have a HP-ENVY laptop with 32GB LITEON SSD and 500GB Harddisk. I have a single boot system installed with ubuntu 14.04 on the SSD, and have a Data partition on the HD. Partitions look like this ...
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0answers
25 views

Help Installing Dual Boot Ubuntu on Secondary Hard Drive that has Stuff on it [migrated]

I have partitioned my disks like so. My plan was to install Elementary OS Freya (Based on Ubuntu) on my larger 1TB driver under the 64GB partition. When I go to install it, I get this. My secondary ...
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1answer
53 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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0answers
43 views

Unable to Dual Boot Ubuntu 14.04 with Windows 7 on UEFI

I have an Acer pc and it is running Win7. Because I'm having problems with that OS I wanted to do what the title suggests. And everything works great after the install. But everytime I try to restart ...
2
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1answer
29 views

Grub 2 menu isn't showing up after installing Ubuntu 15.04, Windows 8.1 is preinstalled

I did boot-repair, ordered boot order through efibootmgr even did grub repair from live cd. but nothing happened yet. suggest solutions
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2answers
52 views

Cannot boot directly from Grub2 on dual boot Windows 8.1 with Xubuntu 14.04.2

I had Windows 8.1 Professional and Xubuntu in VM, but now I want dual boot. First two partitions I had them before with Windows 8.1 ((1) EFI and (2) msftres) then (3) partition C: and (4) parition ...
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0answers
21 views

Problems uninstalling Ubuntu (Bios keeps showing it?)

I'm trying new distributions, and I want to clean all my Ubuntu installation. I have a dual boot W 8.1 - Ubuntu. This is what I've done so far: 1 - I changed my boot priority from BIOS. 2 - I ...
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0answers
29 views

Custom Ubuntu 15.04 Installer - Fails grub install on UEFI systems

I used the ubuntu 15.04 64 bit ISO and customized it using UCK. I installed a bunch of packages into the custom installer & generated the ISO. It installs perfectly in Legacy mode (non UEFI) In ...
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1answer
30 views

Unknown filesystem with grub, but Windows Bootloader works!

I have been having this strange problem for a month or so. I have installed Ubuntu 14.04 alongside Win8.1 on my Lenovo z510. It worked fine for about 5 months, but almost a month ago, I started ...
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2answers
26 views

Grub will only boot one of my two windows OS [closed]

I am perplexed with Grub and am hoping someone can advise me. I have three operating systems installed on my computer: Linuxmint 17 and Windows 7 on sda, and windows Vista on sdb. I updated grub and ...