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".

learn more… | top users | synonyms (2)

1
vote
0answers
13 views

How to restrict OS using specific memory locations in RAM?

I have 6 GB of RAM, my RAM has a block of memory corrupt( 1MB of size). When I tested it with memtest, it showed about a hundred thousand of errors in just a small part of it, starting from 5024.1 MB ...
1
vote
3answers
4k views

Installed Ubuntu and now can't boot into Windows anymore

Okay, now I have a new problem... I installed Ubuntu on my new SSD today. But now Windows 8 doesn't show up in the boot loader anymore. I ran Boot Repair and it told me GPT detected. Please ...
0
votes
1answer
65 views

cannot recover windows8 after installing Ubuntu 16.04

I installed Ubuntu 16.04 LTS and since then I haven't been able to dualboot to Windows 8. I have tried boot-repair to create a file 30_windows, still nothing seems to work. The generated log after ...
1
vote
2answers
58 views

reserved bios boot area [closed]

I have a lenovo T410i, an old laptop that I use for university. I'm trying to install Ubuntu Mate. It will be my only OS on the machine. During the partition set up I get the error: The partition ...
2
votes
0answers
463 views

black screen on Ubuntu 16.04

I recently upgraded to Ubuntu 16.04 from 15.10. When I restarted the system, it came up with a black screen. After searching around, I determined that the problem was with the lack of a proper ...
-1
votes
0answers
36 views

My ubuntu 16.04 is restarted when waked from suspend mode

I was reinstalling Windows 10 and Ubuntu 16.04 after formatting my computer. A dual- boot. In Ubuntu 16.04 , when I try to resume from suspend mode, it reboots. I suffer from symptoms such as Windows ...
0
votes
0answers
60 views

Wanted to change Ubuntu to Windows, cant even boot

I recently decided that I would switch from my beloved Ubuntu,to windows. So, first of all I made my boot-able USB with Windows 8.1 on it,using uNETbootin. All things went well up to this point, and ...
3
votes
1answer
4k views

Ubuntu 15.04 on USB with UEFI

My desire is to do the following. The computer has W8.1 on the HDD and it is using UEFI I want to install Ubuntu 15.04 on 32GB USB stick in a way that I can install regular updates and it remembers ...
0
votes
0answers
146 views

Lubuntu 16.04 LTS can't change resolution on EEE PC 1000 HA

Hi everyone I'm having issues with the new Lubuntu 16.04 I freshly installed the new os and got stuck after boot with dev/sda6 xxxx/xxxx files xxxx/xxxx block, I have set nomodeset ...
0
votes
1answer
31 views

Win 7 bootloader problem continues in dual boot. Please help! [closed]

This is my first posting here. Have been a Linux user since 2-3 years, and have mostly found solutions for issues on forums like these. However, this is something that seems to be impossible to ...
0
votes
2answers
3k views

Boot Clonezilla ISO from GRUB2 Menu

I want to use the most current Clonezilla iso file to backup the partition that contains the Ubuntu operating system that is stored on partition one of my computer's hard drive and I want to be able ...
2
votes
1answer
4k views

Cannot boot into new install of Ubuntu 14 Server

Seems like a fair few people have had similar problems, but I've tried all the suggestions in other threads to no avail. I have installed Ubuntu 14.04 on a HP ProLiant ML310e Server via burning ISO ...
0
votes
1answer
5k views

Ubuntu 13.10 Grub 2.0

I know this question may have been asked hundreds of times before but there doesn't seem to be one answer to how to solve it. I upgraded my computer to Ubuntu 13.10 and my computer was low on ...
0
votes
1answer
74 views

grub-install: error: embedding is not possible

grub-install: warning: your core.img is unusually large. It won't fit in the embedding area. grub-install: error: embedding is not possible, but this is required for RAID and LVM install. ...
0
votes
1answer
8k views

Failed to mount /boot/efi

I just downloaded the lastest Version of Ubuntu13.04 from the official website(of course it is amd64)and my Computer is the ASUS-A45V Laptop.I used the universal usb installer to creater a boot usb ...
0
votes
1answer
23 views

Why Grub does not Recognize Two USB sticks in 16.04?

I have two persistent live USB sticks made as described in the thread How to Make Persistent Live Ubuntu of 16.04? on the Computer. It just recognises one USB boot option. It seems to boot the smaller ...
0
votes
0answers
15 views

Install grub on usb

I customized my system with squashfs, I deployed squashfs, vmlinuz, initrd on a usb device and I want to boot using grub, I installed grub on my usb but it didnt boot. how can I make a bootable usb?
2
votes
0answers
84 views

Kernel Panic - not syncing - Attempted to kill init ! exit code 0x00007f00

I am using Ubuntu 14.04 LTS dual boot with windows 8. Yesterday I was installing hadoop on my system and suddenly Ubuntu stopped working. So I have to power it off directly by pressing and holding ...
1
vote
0answers
20 views

Will we ever be able to install Ubuntu on a Win10 tablet like we can on Desktop? [duplicate]

I've got a nice Win10 Tablet/Netbook, but I hate Win10. I tried Installing Ubuntu casually on it, but It couldnt boot from the installation media. I've found out that this has something to do with ...
0
votes
0answers
18 views

Error: unknown filesystem when Restarting

I am using a dual boot laptop with Windows XP Pro and Ubuntu Recently, I migrated my old HDD to a larger SSD and re-installed Ubuntu (16.04 32bit) Although the Grub 2 boot-loader works perfectly ...
5
votes
3answers
34k views

Tried to boot Ubuntu, but the GRUB rescue shows up instead

Tried to boot Ubuntu, but something like this shows up instead:
0
votes
0answers
110 views

CPU# stuck 23s! Dell Inspirion 7559 [closed]

I recently purchased a Dell Inspirion 15 7759, I have a lot of problem installing ubuntu 16.04 because the live usb just get stuck on the boot screen and I have to be restarting over and over again ...
1
vote
1answer
36 views

Remove dual boot safely for bootloader (GRUB2)

I installed yesterday another linux (Antergos) beside my Xubuntu, and it didn't offer me what I wanted. Now I want to remove it, but I suspect it might generate a bootloader issue, as the bootloader ...
0
votes
1answer
28 views

Windows does not show in GRUB Customizer

I know this question has been asked several times, but none of the answers seem to be working in my case. I have win 10 and ubuntu. but there is no dual boot menu. GRUB does not show in the bootup. ...
3
votes
2answers
5k views

How to enable hiding grub menu on a dual-boot system?

With GRUB 2, you seem to be able to hide the startup menu (unless someone presses a certain button). But unfortunately grub disables this for multi-OS systems, I've looked up a few other pages. But ...
23
votes
10answers
55k views

Hide GRUB2 menu UNLESS you hold down Shift key: how to make this happen?

I have a Ubuntu - Windows 7 dual-boot set-up, and I would like to have it that my laptop would boot up Windows 7 unless I press down the Shift key right after boot and bring up the Grub2 menu from ...
0
votes
2answers
120 views

Move Ubuntu 16.04 to a SSD from HDD occurring error, no ssd shown in grub menu

I was using an 1TB hdd with uefi boot window10(updated from 7) and ubuntu 16.04 on it.It worked fine.I first installed windows,and then parted 120gb free space for ubuntu,then I installed ubuntu just ...
0
votes
1answer
120 views

How to Dual Boot Windows 10 and Ubuntu 16 off an External Drive

I made an external drive that can dual boot Windows 10 and Ubuntu 16, along with being able to boot live ISOs. This will be attempted using both graphic interfaces and command lines. Objectives: ...
0
votes
0answers
15 views

Grub Loader lost

I had to install windows 8 again. I already have Ubuntu installed. Now, Grub loader is not shown. I have tried to boot by usb with ubuntu. A menu shows up: -Try ubuntu without installing -install ...
0
votes
3answers
310 views

Ubuntu 16.04 has no VMWare console access once booted on VMWare vSphere 5.5 Cluster with EFI

I installed a fresh Ubuntu Server 16.04 on our VMWare cluster to try it out and begin building a template for it. After install, the IP address is displayed and it seems to work if I SSH into it, but ...
0
votes
0answers
45 views

Ubuntu system not booting from USB stick

I have installed two versions of Ubuntu on two hard drives in my Asus laptop, one running with Ubuntu 14.04 and the other with 15.10. Originally, both systems worked, however, today when booting up ...
11
votes
4answers
52k views

How do I burn the Windows 10 ISO to a USB?

I did the dd method and it worked but I'm not sure that's all you have to do because it is Windows and may not have GRUB and I'm not sure so I'm asking the experts haha. WINUSB DID NOT WORK BECAUSE ...
0
votes
0answers
18 views

“/usr/sbin/grub-mkconfig: 10 not found”

I've launched a wrong command to change the grub on Kali linux 2016 and now I can't update the grub. The command I've launched is this: sudo sed -i "s/GRUB_CMDLINE_LINUX=.*/GRUB_CMDLINE_LI­ ...
2
votes
2answers
4k views

How would I boot into the Ubuntu and Windows recovery modes if I removed the options to do so from the Grub menu?

I can use Grub-Customizer to edit which options appear in the Grub menu. I was thinking of removing everything except the option to boot into Ubuntu and into Windows. If I was to do this how could I ...
0
votes
0answers
12 views

Convert UEFI to legacy on encrypted disk

I've installed Xubuntu 16.04 with ticking the box "encrypt whole system" (basically LUKS on an LVM) with UEFI boot loader. Now I would like to switch to legacy booting. How can I reconfigure (?) GRUB ...
0
votes
1answer
62 views

Is there a Boot-Repair for Ubuntu 15.04?

While trying to change my computer's default boot loader, I have run into the obstacle of having the message E: unable to locate package boot-repair. I learned that this could be because Boot-Repair ...
0
votes
1answer
11 views

Dual boot encryption

I want to encrypt my dual boot system. New installation (not installed now) of ubuntu with standard encryption and current windows system with veracrypt. My problem is that i can only create 4 primary ...
0
votes
1answer
73 views

How can I access recovery mode, Ubuntu 14.04 LTS? [duplicate]

I managed to delete my only user from sudoers group, and now I can't do any administrative tasks anymore. I have been looking for an answer hours, and I guess that part of the problem is solved. But ...
0
votes
1answer
18 views

Libparted complaining about GPT signatures on disk

This warning comes up while using the Ubuntu studio "Live" from an USB stick, in a PC where the program is installed but the GRUB doesn't work. What does this mean and how can I fix this issue?
0
votes
0answers
31 views

Sometimes Ubuntu stuck on Grub command line on startup

I have Ubuntu 16.04 and dualboot with Windows 10. Sometimes startup stucks on Grub command line. I just do "exit" and grub menu appears and everything is fine. What can be the problem? How to solve ...
0
votes
1answer
20 views

How can I restore control of my computer to the BIOS from grub?

I tried to use Parted Magic (unsuccessfully) and now when I try to boot I get the message: error: unknown filesystem. Entering rescue mode... grub rescue> When I go into the BIOS to override the HDD ...
4
votes
2answers
4k views

Why can't I install GRUB on my USB drive?

I'm trying to install Lubuntu to a USB drive, but I'm having a difficult time installing GRUB to the drive. The rest of the install seems to go fine. This is what I have tried Went through the ...
0
votes
0answers
16 views

Can't boot into Windows

Well I did a stupid thing while repairing my boot loader system using EasyBCD on Windows. I selected Ubuntu as default bootloader and also selected the 'Skip the boot menu' option and applied those ...
16
votes
4answers
38k views

How to know the version of GRUB

How can I see the version of GRUB that is running in a particular Ubuntu version. A terminal command that can tell me.
0
votes
0answers
17 views

live USB shutsdown after GRUB

I'm having an issue with my Ubuntu install - it randomly decided not to boot this morning, in trying to recover, I've downloaded and burnt to USB Ubuntu to create a live USB install. When I plug this ...
0
votes
1answer
17 views

Grub C Code in “set” output?

i made an interesting discovery. When i run set as root the output displays some c code... it seems like some grub boot-loader code.. followed by some unreadable parts. That seems a bit ... wired to ...
1
vote
1answer
887 views

Boot problems with Ubuntu on Asus Notebook

I had Ubtuntu 14.04 LTS installed (with encrypted homefolder) as dualboot with Win8.1. System is Asus X553M Notebook. Ubuntu only booted sometimes, most of the time only after i booted in recovery ...
1
vote
1answer
5k views

How to manually add OS in GRUB?

I have windows 8 and ubuntu 12.04 LTS dual booted.. however, I have a partition with Windows 7 which does not have an entry in bootloader. How can I manually edit the GRUB so that I can get Windows 7, ...
3
votes
6answers
4k 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 ...
0
votes
0answers
27 views

Disable all boot messages (ubuntu 15.10) and login screen

I wrote simple application to display pictures at my home. This application starts just after boot (systemd: After = systemd-user-sessions.service network.target) and then uses xinit. I have a ...