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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No selection in Bootloader

I'm new to ubuntu. Yesterday I installed ubuntu 16.04LTS (as dual boot with windows 8.1) and now I'm having a problem with bootloader. When I switched on my laptop there'll no selection option for OS. ...
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11 views

Trying to install ubuntu-16.04-desktop-amd64 through pendrive

i have already deleted my last ubuntu 14.04 drive for some purpose, but now, when i was trying to install ubuntu-16.04-desktop-amd64 through pen drive and i was getting some black screen written on it ...
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Reinstalling grub2 from an ubuntu live usb

I've installed FreeBsd along with Arch and Windows in place of Ubuntu. So initially I had Ubuntu, Arch and Windows. I did something wrong and now it boots in grub menu. I've created a live ubuntu ...
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15 views

Not able to install ubuntu 16.04 alongside window 8.1

I have tried to install the ubuntu 16.04 alongside window 8.1 but it is not showing option of install alongside windows boot manager. further on selecting something else and there it is only showing ...
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3answers
35 views

Unable to enter BIOS setup utility before grub bootloader appears

I have a Dell Inspiron 7537 with a Core i7 processor. I used to dual boot Windows and Linux, which was fine. However later, I ended up booting from Ubuntu 16.04, and making that the only OS installed ...
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1answer
27 views

Unable to boot from USB on Windows after removing dual booted linux

I had previously installed elementary OS on my windows laptop and was trying to install normal ubuntu alongside it, but I kept having the issue of not being able to boot from the USB with the ubuntu ...
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2answers
20 views

black screen after installing Ubuntu

Hopefully this has an easy solution. I recently installed Ubuntu using the Ubiquity installer for the latest release. Due to my hardware, in order to install it from my USB, i had to use the nomodeset ...
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17 views

4 operating systems boot problem fedora , Kali , Ubuntu , windows [on hold]

It's kinda confusing , but I have these systems with grub loader I think fedora was holding the boot , after windows boot crashed I tried fixmbr and it completely erased other oSes from boot menu , I ...
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2answers
37 views

Dual boot option menu

I installed Windows 7 and 64 bit Ubuntu 14.04 LTS on my PC and both worked very smoothly. Since I updated by ubuntu last month, the system starts directly to ubuntu OS. I can't see GRUB menu, which ...
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1answer
17 views

Can't boot from clean install

I've recently been having trouble booting my computer. I tried to re-install some NVIDIA drivers after an update broke CUDA and led to some poor video performance. However that led to some conflicts,...
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1answer
9 views

Ubuntu 16.04 LUKS passcode does not appear

I installed an encrypted version of Ubuntu on my PC. If I start my computer appears this login screen: I'm unable to type in the passcode. Nothing appears. Also if I type in the correct passcode and ...
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1answer
9 views

How to access recovery console without using grub?

So I just got a computer from work for free but it's a rather old iMac, probably from 2006, and it has Ubuntu on it. I have no clue how to use this software and the previous owner is unknown so I can'...
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10 views

Windows 7 screen does not shows after dual booting of my Dell Inspiron 15 3542 Core i3 Laptop

I recently tried to dual boot my Dell Inspiron 15 3542 Core i3 laptop (64 bit) using Ubuntu 16.4 which already had Windows 7 on installed. The process of dual booting completed successfully but when ...
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33 views

Ubuntu restart works fine but shutdown does not?

Why does my Ubuntu not shut down properly? My Ubuntu restart works fine but shutdown does not properly. I modified the grub like this: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=pci" My ...
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1answer
31 views

Reinstalling Ubuntu as a solution to my issue

As I've posted before, Installing Windows 8.1 over Ubuntu has caused the deletion(?) of grub, and thus I cannot get into Ubuntu. I have tried both repairing grub through the command line on a Live USB,...
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1answer
15 views

NumLock turns off after GRUB

In the BIOS settings, NumLock is turned on. The NumLock will continue to turn on but after you choose your OS with GRUB it will turn off automatically. The NumLock is still on while on GRUB screen ...
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1answer
19 views

14.04 login loop; tried suggested solutions but no luck; will work with older linux kernel

I'm still rather new to Linux. Login loop started earlier this week after an update that required a reboot. I searched here and found suggestions for doing a package repair via "recovery mode" (did ...
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2answers
21 views

Booting ubuntu from USB drive using grub and then resizing parition

I currently have a dual partition - windows and ubuntu, setup on my computer. However, I would like to resize my ubuntu partition to create more space. I believe to do this from ubuntu I need to ...
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1answer
23 views

Unable to boot Ubuntu 14.04 suddenly

I was doing a lot of system installs such as GL, cmake etc. I finished installing and I am unable to reboot Ubuntu 14.04 LTS. I ran the hardware diagnostics and no errors were found. It starts and you ...
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27 views

The mysterious : Error parsing PCC subspaces from PCCT

I'm a long time LTS Ubuntu user, I recently changed my aging ASUS notebook to a Lenovo T450. The latter came with windows 10, so I decided to wipe it with the fresh 16.04 Ubuntu. The install (via a ...
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14 views

Lenovo G580 Zorin OS killed my bios. I can no longer access the bios or boot menu [on hold]

I am struggling with a very serious problem with my old laptop. I installed Zorin OS to my laptop and now Every time I try to access the bios or the boot menu It says please wait after pressing the ...
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1answer
38 views

How can I convert Ubuntu to UEFI

I want to install Ubuntu 14.04.4 in UEFI mode alongside windows 8, which is already in UEFI mode. My partition scheme is GPT. Ubuntu is on /dev/sda5. Legacy bootloader on /dev/sda. Windows on /dev/...
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13 views

Laptop loads to black screen intermittently when booting from Ubuntu 16.04 live USB

My hard drive got busted, but since I only need to access a browser for most of my work, I decided to wing it by using a live USB. Unfortunately, there are some problems related to the screen. The ...
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15 views

hd0 read error on boot

My computer was hanged while it was shutting down and I had to hard reboot the system by pressing the power button. When the system booted back I got the message error: hd0 read error and the ...
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0answers
14 views

Dual-Boot Ubuntu/Win7/ (Ubuntu was installed first) Updating Ubuntu version to latest Format C [on hold]

I have a Dual-Boot Ubuntu/Win7/ System on my old laptop, with Ubuntu installed first, I then updated and edited my version to a text-only Linux-based version, for some reason... Now I need to Update ...
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30 views

minimal bash line editing error in ubuntu 14.04 LTS

I tried this link but I got the following errors: Cannot add PPA: 'ppa:yannubuntu/boot-repair'. Please check that the PPA name or format is correct. and even this doesn't seem to work, nano /etc/...
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1answer
24 views

Permission Denied updating grub as root

I bought a MSI laptop recently and I struggled to install Ubuntu. Now I have it installed and I have two problems. One of the is that I need to modify the grub file but when I try(update-grub) it ...
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12 views

Can't boot windows after both windows and linux were working together (Get Repair Windows Option)

I had both OSs working together, then I did a chown on an external HDD and can not longer boot windows. Drives: SSD 223 GiB sda1 fat32 142 MiB boot,esp (UEFI Boot) sda2 ext4 37 GiB ...
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1answer
15 views

How can GRUB access initramfs file if its stored in RAID

I am reading about how boot process in Linux works and just cannot understand one thing: If GRUB is the one who copies initramfs into memory and only after that init process starts (which is then ...
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14 views

Device Not Found - GRUB rescue

Sorry if this answer is already out here somewhere...I've been trying numerous 'fixes' found here, but nothing is working. Here are the details: I installed Ubuntu Linux LTS on my PC. I have two ...
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1answer
22 views

HP Pavilion X2 10: Cannot boot Windows 10 efi [on hold]

I have this new model of detachable HP Pavilion X2 10 (n182ng). I am not able to boot into USB installer for Windows 10. I downloaded iso from Microsoft site and copied onto pendrive using Disks ...
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18 views

Error Unknown File system

After deleting the lubuntu partition and reboot my pc. i got into grub rescue I tried to do ls I got (hd0) (hd0,msdos1) (fd0) I try this commands set root=(hd0) set prefix=(hd0)/boot/grub but when ...
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63 views

Ubuntu 16.04 slow boot (apt-daily.service)

Yes i know there is already a question with similar title , but mine is a little different . My boot is horribly slow ,i don't know why. This output from my terminal might help. ashwin@MS-7327:~$ ...
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18 views

How do I tell the boot loader where grub.cfg is?

I have 4 partitions on my boot drive: /dev/sda1 which has Ubuntu 12.04, /dev/sda3 which has 15.10, /dev/sda4 which has 16.04 and which is big, and /dev/sda5 which has 16.04 and is small. When I boot, ...
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1answer
49 views

Can you use a different bootloader rather than GRUB?

Title says all. I'm trying to see if another alternative to GRUB is working. If you can do it, what are the steps? If you can't do it, why?
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0answers
11 views

Error occurred while write win7 iso into my usb using WinUSB in Ubuntu

I tried to write the win7 iso into my usb using WinUSB in Ubuntu,but some errors occurred.Here is the log. grub-install: warning: Attempting to install GRUB to a disk with multiple partition labels. ...
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0answers
15 views

Grub installation failed during Kubuntu setup

I trying to install Kubuntu 16.04 (64bit) on my Chuwi Vi10 tablet, but the end of the installation I get this message: GRUB Installation Failed: The 'grub-efi-ia32' package failed to install ...
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0answers
17 views

Bootup Error: ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknow-block(0,0)

Previously, I have execute the following 3 commands. sudo apt-get update sudo apt-get upgrade sudo apt-get dist-upgrade However, I cannot bootup my laptop after the restart. Whatever I try to ...
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1answer
50 views

Dual Boot Windows 8/ Ubuntu 16.04 Grub Issues

I recently had to re-install Ubuntu because it would not boot after some software changes. To install from a Live USB I had to change from UEFI mode to CSM. After reinstalling, the Grub menu does not ...
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0answers
34 views

Ubuntu won't boot on asus gl552vw

Few days ago I bought a new laptop, the asus gl552vw-dm149 with the following specs: Processor: i5-6300hq Graphic card: nvidia gtx 960m Ram: 12GB ddr4 2133Mhz SO: Windows 10 When I try to boot ...
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0answers
10 views

Legacy PC mode errors when repairing GRUB

I recently installed Ubuntu 14.04 and installed Windows 7 on a separate partition. While I can boot up Windows, I cannot boot up Ubuntu anymore. I created the Boot Repair Disk to repair GRUB for ...
3
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1answer
22 views

How to reorder operating systems in GRUB?

How can I rearrange the operating systems installed on my computer in GRUB? I have Windows 10, Ubuntu 14.04 LTS, and Kubuntu 15.10. It prioritizes Kubuntu, with Ubuntu second, and Windows last. How ...
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3answers
34 views

Update problems… Errors Errors

I tried everything like removing the 24 kernel manually but no matter what I do this is my output of sudo apt-get upgrade: Reading package lists... Done Building dependency tree Reading state ...
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0answers
17 views

dpkg error code 1

I'm getting this problem whenever I try to install any program Errors were encountered while processing: lightdm grub-common grub2-common grub-efi-amd64-bin grub-efi-amd64 grub-...
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0answers
35 views

Stuck in grub. Cannot boot anything

I was having a problem with my wifi on Linux and went through every suggestion i could find and nothing worked so i decided to try and uninstall and reinstall linux. After i uninstalled and restarted. ...
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21 views

Tried to boot into windows from dualboot and i got : gnu grub version 2.02~beta2-36ubuntu 3

My keyboard won't work when I am at this screen
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0answers
67 views

debconf uefi disabling almost breaks system

I am using Lubuntu 14.04 and use the graphical update manager to keep my system up to date. Today I was installing a bunch of updates, when a window appeard that told me, that a tool named "debconf" ...
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0answers
13 views

Install grub for different OS on different HDD

I have a new system with me and two HDDs from my previous system. Simply put, I have sda with Windows 7 & Ubuntu 14.04 LTS and sdb for additional storage. I upgraded Ubuntu to 16.04 LTS and wanted ...
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1answer
33 views

I cannot boot into windows 7 after installing ubuntu. BIOS-Boot partition error [duplicate]

I've been scratching my head for hours, and am completely lost. I have ubuntu installed on a separate drive, and 5 other drives I use with windows 7. I ran Boot-Repair with "Recommended Repair" and ...
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0answers
46 views

Grub Customizer Appearance Settings not working on Ubuntu 16.04

The Grub Customizer works great editing the boot options for starting up my computer. However, no matter what settings I use, Grub runs in a low resolution with an Ubuntu-purple background color on ...