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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Windows XP missing hal.dll error after installing Ubuntu [migrated]

I was dual-booting and I wanted to make some unspecified partition space and I've decided I didn't really need my 14.04 Ubuntu so I deleted the partition of it with an Ubuntu Live CD. Since grub was ...
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1answer
10 views

Acronis Extended Capacity Disk

I have a Western Digital Black 4 TB Hard Drive in my PC running Windows 8.1. To get past my PC's 2 TB limit I have used Acronis Extended Capacity Manager to gain access to hard drive space beyond the ...
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Unplugged old bad disk, ran update-grub, but old menu options (on unplugged disk) still appear

so this must be a common problem. I had an old Windows machine with a disk that started to go bad (just some bad spots, corrupted files). So, I installed a new disk beside the old one and put Mint ...
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1answer
14 views

Error: unknown file system. Deleted ubuntu and got this

I was dual booting windows and ubuntu. Whenever I started my computer I'd get to choose between which OS to boot on. But now, I was on my Windows 7 and deleted ubuntu. I restarted my computer and got ...
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1answer
23 views

Ubuntu and Ubuntu Server on the same laptop

I have installed Ubuntu 14.04 from a USB (using UNetBootin) on my laptop, on a freshly formatted hard drive, and then I installed Ubuntu Server 14.04 from a USB (made again with UNetBootin), and ...
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0answers
13 views

Ubuntu Server not booting up after install

I have a HP ProLiant Gen8 server with two 3TB HDDs and 16GB RAM and a 16GB Kingston USB. And I'm trying to install Ubuntu server on the 16GB USB, i followed the steps in the installation process and ...
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0answers
6 views

Linux full disk encryption password prompt completely unreadable

After a few updates ago , my computer as it boots up and asks for the hard disk encryption passphrase the menu is completely unreadable. This doesn't bother me too much, but I am curious if there is a ...
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1answer
17 views

How can I access GRUB in Windows 8.1

I have a laptop with Windows 8.1 installed. I installed Ubuntu Gnome 15.04. I can not access the GRUB to select Ubuntu, the computer just boots straight to windows. I have found the following ...
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1answer
17 views

How to find file on random partions then mount that partition

Im trying to write a batch script that will find a specific file (EX .homemnt) on a random partion then mount that partition to what ever location I want (EX /home).. Added notes: Will be used on ...
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1answer
22 views

How to boot directly into Windows 10 from grub on Windows8.1-Windows10-Ubuntu15.04 tripleboot system?

I have a tripleboot system having Windows8.1, Windows 10 and Ubuntu 15.04. When I choose Windows from grub menu, it takes me to Windows bootloader giving choice between Windows 10 and Windows 8.1. How ...
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1answer
21 views

Will updating the BIOS remove my Ubuntu EFI entry?

I have an HP ProBook G1 with Windows 8.1 OEM on which I installed Ubuntu 14.04 LTS in dualboot. This laptop has a BIOS that makes it difficult to change the default boot loader called at hardware ...
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6answers
3k views

Ubuntu 12.04 LTS on pendrive

I've got a problem with installing Ubuntu on Pendrive. Steps I made: Downloaded ISO from Ubuntu site. Burn it on DVD. Run PC from the DVD (pendrive is plugged in). Followed instruction on the ...
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2answers
16k views

GRUB does not detect Windows

I have finally installed Ubuntu on my second drive. When I start my computer GRUB only offers me to boot Ubuntu, not Windows 7. What needs to be done so that I can choose between Ubuntu and Windows in ...
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0answers
6 views

Grub Error: Unknown filesystem(Tried with Boot-Repair also, Unable to resolve it)

I have a dual boot in laptop which consisting of Ubuntu along with Windows7, But my laptop is showing the error Grub Error: Unknown filesystem when booting. I tried everything in the web and followed ...
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0answers
7 views

Grub Error: Unknown filesystem(Tried stuff everything, but unable to resolve it)

I have a dual boot in laptop which consisting of Ubuntu along with Windows7, But my laptop is showing the error Grub Error: Unknown filesystem when booting. I tried everything in the web and followed ...
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1answer
32 views

Which partition to install Ubuntu in so as not to erase/make more bad things happen to Windows?

I'm trying to install Ubuntu alongside Windows, but not within Windows. I want to use Grub as the bootloader instead of the Windows MBR. I was installing off the liveDVD for 15.04, the amd64 version. ...
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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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1answer
59 views

Brightness not changing Dell 15r SE and ubuntu 12.04

With my current laptop I can't change my brightness anymore I tried xbacklight -set 50 (nothing happened) and also changed this line grub_cmdline_linux_default= "quiet splash" to ...
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0answers
34 views

Unable to boot Windows after installing Ubuntu

I had Windows installed on an NTFS partition. I freed a partition and installed Ubuntu successfully on it. I booted to Ubuntu once but after I restarted, I wasn't able to boot into it again and all I ...
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1answer
19 views

Ubuntu will not boot all the way

Recently, my computer lost it's ability to normally boot ubuntu. I am very perplexed as to why it may be happening. An interesting clue: about a week ago, I was trying to move some files around into ...
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0answers
54 views

trouble dual booting an Acer Aspire V17

I have an Acer V17 nitro, with I7, GeForce 860M, 1TB HDD, 16 GB RAM, backlit keyboard and Windows 8.1 How do I achieve a dual boot with this new laptop? i was able to achieve dual boot, windows 8.1 ...
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1answer
46 views

My ubuntu is corrupted

I have a dual boot - Ubuntu and windows 7. I recently wass playing around in the ubuntu and used the 'dd' command and it kinda corrupted my linux file system. I exactly dont know what happened to ...
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1answer
26 views

Migrating to new SSD, not booting! (GRUB not loaded)

I got my new SSD today, and used dd to burn the Ubuntu 14.04 image onto a USB. Then I swapped the internal HDD with my new SSD. I booted into the USB, and installed Ubuntu to the SSD. I manually ...
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0answers
145 views

Installing Ubuntu Server 14.04 LTS on a MacBook Pro 7.1, unexpected shutdown happens

I'm trying to setup a webserver on an old MacBook Pro to be able to securely, and remotely, manage our home network stuff. The end goal is to be running Ubuntu Server 14.04 LTS, running an apache2 ...
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6 views

Will Biosdevname stay disabled when I update my system?

I wanted my server, 14.04.2, to use the old style of network interface naming, e.g. eth0. I used the Biosdevname part of the answer found here, editing /etc/default/grub but not purging the ...
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12 views

Booting OS of Ubuntu 1.1.20.0-8ubuntu1

I have a problem in booting version 2.00-13ubuntu3 moving to recovery mode, it requires me to fill the initramfs using built-in-commands which i dont know how to add them. Help me
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1answer
71 views

How can I boot into Arch Linux using initramfs, in Ubuntu's grub?

I have two hard drives, with two corresponding Grubs. One is from Arch Linux, and the other is from Ubuntu. Using Arch's grub, I can boot into either distribution. However, using Ubuntu's grub, I can ...
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0answers
18 views

Computer does not boot after changing hdd and reverting back

1) I have an existing HDD in my computer that dual boots linux and windows using the traditional bios way. 2) I then took out the existing HDD and swap in a new HDD to install linux on it with uefi. ...
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2answers
248 views

Not able to boot after installing ubuntu 14.04 on a brand new dell precision tower 5810

I've just acquired recently a brand new Dell Precision Tower 5810 with preinstalled Win7 pro. It has 2 disks 4TB each. I tried to install Ubuntu 14.04 as the primary OS wiping everything from the ...
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1answer
413 views

How to install Ubuntu server 14.04 on LVM RAID?

I want to try install ubuntu on LVM RAID logical volume, but fail on step grub installation. There are my steps as below: 1. use three HDDs called sda, sdb, and sdc to create a volume group. 2. ...
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2answers
3k views

Ubuntu 13.10 software raid

I had already Ubuntu OS installed on my desktop PC, where the software RAID 5 is configured ( 3 partitions /, swap and home ). This system was upgraded from the 11.04 till 13.04, it was quite messy, ...
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3answers
4k views

Black screen when trying to install ubuntu 13.10

I am in need of some help. It has been 2 weeks since I bought my first ever windows laptop with the aim of replacing windows but I have been unsuccessful. The hardware is as follows : Asus 15' F550D ...
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1answer
35 views

Upgraded a virtual guest system: /dev/disk/uuid… does not exit

I recently upgraded my Ubuntu 14.04 (kubuntu), running as a guest inside VirtualBox 4.3.12 hosted by Windows 7 Enterprise, 64 bit. All ran fine until yesterday - when I tried to start the new ...
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5answers
6k views

Windows 8 changes GRUB2 in every boot!

I've installed Windows 8 and Ubuntu 12.10 both UEFI style (win8 first then ubuntu). GRUB2 shows me both Ubuntu and Win8 entries. If I boot into Ubuntu is fine. I could reboot anytime I will see ...
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0answers
12 views

Ubuntu Live on Pendrive: How can I default booting to Ram Test?

I would like to create some Ubuntu Live pendrive for booting Ubuntu, but most often testing RAM: So, as long as the most usual behavior of this boot manager would be the RAM testing, I would like ...
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0answers
29 views

PC boots straight to Windows [duplicate]

I dual-boot Ubuntu and Windows. For a few days now I have the problem that when I boot, the computer boots straight to Windows. I already changed the BIOS boot device to the Ubuntu HDD, but no ...
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3answers
265 views

Again “How to get grub2 to remember last choice?”

This question was already asked once but it hasn't helped me in my trouble. I have Ubuntu and Windows 7 on my laptop. Usually I use Windows 7 but GRUB always boots Ubuntu by default. My ...
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1answer
12 views

“The disk drive for /media/ext-hdd is not ready yet or not present” is shown every boot time

I used ubuntu 14.04 and windows 8.1 as dual boot. windows was in sda2 drive. I removed windows and sda2 drive became empty which was not writeable. I was able to write in that drive following this. ...
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1answer
33 views

How do I fix boot problems after installing Ubuntu 14.04 alongside Windows 8.1?

I installed Ubuntu 14.4 (64bit) alongside the pre-installed windows 8.1 (64bit) on my laptop Dell Inspiron 7548 around 1 month ago (UEFI partition). For this purpose I used liveUSB according to ...
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0answers
8 views

What to do when I suddenly get an “attempt to read or write outside of disk 'hd0” error,and ubuntu 14.04 was working just fine the last night?

This morning when i turned on my laptop, it showed this error Error:attempt to read or write outside of disk hd0. Entering rescue mode... grub rescue>_ I immediately shut down my laptop and ...
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1answer
69 views

Booting Ubuntu 14.04 from External HDD

My laptop has Windows 8.1 64-bit and since I have few space on my SSD, I wanted to install ubuntu in an external HDD. From the UEFI settings I disabled the safety boot, fast boot and so on, and I set ...
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0answers
19 views

Ubuntu Boot/grub message

I'm sure you have seen this question before and sorry to waste your time but I have 2 computers that use Ubuntu 14.04 and the laptop shows an error message when switched on: error: file ...
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1answer
28 views

Installed Windows before Ubuntu, both in BIOS mode, but GRUB install failed

Let me start by saying I've been trying to get it to work for 2 days, and that I've read a lot. The answer could be extremely obvious but I need someone to point it out. I was trying to dual boot ...
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1answer
19 views

Windows has not been removed from dual boot

I have removed windows 8.1 from dual boot Ubuntu 14.04 following this tutorial . I used the OS uninstaller as described in that tutorial. But still when i boot PC, I see that windows has not been ...
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4answers
7k views

GRUB / os-prober doesn't see Windows 8.1 partition

I have a 1 TB HDD with seven partitions, one ~600GB for Windows and one ~300GB for Xubuntu and a bunch of assorted system partitions taking the rest of the space. I recently overwrote my Xubuntu ...
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3answers
18 views

Installed grub to wrong partition

I was helping a friend remotely to dual boot Ubuntu with Windows 8. He installed Ubuntu to /dev/sda7 and when it asked for where to put the bootloader, he selected the same (/dev/sda7) When he ...
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4answers
6k views

Stuck in GRUB Rescue Mode

I messed up my new laptop while trying to set up a dual-boot with Ubuntu and Windows 8.I did a whole bunch of stuff trying to get it to work and now when I try to boot I get stuck in GRUB's recovery ...
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8answers
26k views

Lost Windows 7 in GRUB after installing Ubuntu 14.04

So today I've decided install the new 14.04 (64bit) on top of the 13.10 (32bit) Ubuntu that I used to have dual boot with Win 7. So it gave me number of options to install the 14.04, one of them was ...
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1answer
13 views

grub-install dev/sdb1 gives error

I am trying to install GRUB into my USB, but it is always giving this error in normal mode: Installing for i386-pc platform. grub-install: error: cannot delete `/boot/grub/i386-pc/sleep_test.mod': ...
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0answers
20 views

ubuntu fails to boot after erasing windows

I have been having problems with my sister's Lenovo ThinkPad L440. She erased her windows partition alongside Ubuntu. It had a 100 MB boot partition and the actual OS. It was not surprising that it ...