Questions tagged [grub2]
GRUB 2 is the next generation of the GRand Unified Bootloader (GRUB). Ubuntu has used GRUB 2 as the boot loader since 9.10 (Karmic Koala). Commonly referred to as simply "GRUB".
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Ubuntu 18.04 only boots in Recovery mode
It's an iMac, but it's been running ubuntu for maybe 5 years without serious issue. Not my computer, so I don't know how this problem started. With some web searching and guesses at where I should ...
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Fix conditional error of 'Operating System Not Found'
My Ubuntu System(18.04 LTS) is just showing me like 'No Operating System Found' or 'Read Error' or Grub Error 'Unknown Error'. And also after I shutdown or switch on my system, some text is shown like ...
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sudo update-grub: *******#: not found
I wanted to edit my GRUB config file and used sudo update-grub to update it, but I got the output:
Sourcing file `enter code here`/etc/default/grub
/usr/sbin/grub-mkconfig: 1: /etc/default/grub: *****...
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How to clone /boot and LUKS-encrypted root partitions to a new disk with a different partition table
The system in question is installed on an 80GB HDD that's on its last legs. Partition table is msdos, and has a /boot partition, and encrypted swap and / partitions. The swap is no longer used so I'd ...
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Ubuntu show grub boot menu and do not auto boot?
I have the issue where every time I boot up my laptop it shows the boot menu and I have to choose that I want to use Ubuntu. I have searched the web and found that others have the same issue, however ...
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How to boot UEFI installed Ubuntu in BIOS?
I installed Ubuntu 19.04 to an external HDD,in UEFI using a laptop.
I then tried booting it through my desktop (BIOS only, Windows 10), but an error popped up, about missing normal.mod file, ...
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Booting to windows with windows boot manager or bootmgfw.efi
Yesterday I have managed to successfully install and configure Ubuntu 18.04 LTS as a second operating system on my PC.Everything works fine,however there is one thing that confuses me:
In the GRUB,...
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After Windows/BIOS update, GRUB boot option gone and I can't boot to LiveUSB
I am running a dual boot Windows 10/Ubuntu 16.X on an ASUS Zenbook UX330U. After a Windows and possibly BIOS update yesterday, the option to dual boot is missing.
BIOS Home Screen
I can only ...
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Expanded Ubuntu partition size, now loads into grub
I ran out of space on my Ubuntu 16.04 partition so I used easeUS partition master on Windows 10 to shrink my Windows partition, move the unallocated space over, then expand the Ubuntu partition. Now ...
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Error fixing grub after resizing partition (grub-install: error: cannot find EFI directory)
I had a dual boot system and removed the Windows partition using Gparted by booting from a USB. After this, I was not able to boot into the Ubuntu system (or even get to the grub menu). Gparted had ...
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How do I get my server to boot normally again? Stuck at Grub command line
All of a sudden my Ubuntu 13.04 (Raring) server does not boot correctly anymore. It stops at a grub command line.
If I type ls, I get
(hd0) (hd0,msdos5) (hd0,msdos1) (fd0)
i can then ls each ...
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Trouble after moving partition
After moving the / Ubuntu system partition, I'm having trouble on initialization, getting messages:
can't request region for resource...
couldn't get size...".
After some period of time, ...
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U19.04 Nvidia 430 issue. bpfilter
I have a laptop with an igpu and nvidia gpu.
Yesterday I updated my nvidia driver to use the new CUDA and after reboot the laptop seemed to basically died. I couldn't log in for the longest time, ...
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Not able to boot into ubuntu after reinstalling it
On my system with ssd+hdd, there is windows on ssd and ubuntu on a partion in hdd. I tried installing ubuntu again as blutooth and some others issues are present. Installation is happening properly(...
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how to install Ubuntu using ttySx / Uart Console?
Is it possible to install Ubuntu desktop using Uart console?
Post grub changes able to see info in Uart ttyS4/5 (in my system) using Runlevel 3.
But the moment installation start to select key etc the ...
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Failing to boot to grub with dual boot Dell laptop
Trying to put Ubuntu on a Dell Latitude 7290.
In Windows: The C drive had a large Fat32 partition which I shrunk to create some space for an extra (virtual, possibly?) partition on which to put ...
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Can't remove Ubuntu from boot priority order
It seems that I can't completely remove Ubuntu from BIOS/Firmware settings of my PC; I also use Windows 10, by the way.
I already removed the partitions where I had Ubuntu, and extended my Windows ...
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What did I miss in this booting-iso-from-disk attempt?
I have downloaded an LTS version of Ubuntu and put the iso on a separate ext4 partition on a laptop that default boots 18.04.2 LTS. I've added the appropriate line to 40_custom in grub.d, and run ...
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UEFI Firmware Setting not opening itself and Grub menu is not opening in startup to boot directly in Ubuntu
I have Installed Ubuntu alongside windows 10 by a startup from USB and It is installed perfectly and I got reboot now option. When I rebooted nothing happened and Windows automatically boots itself.
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Use Grub to fix hard drive bootup
SSD - /dev/nvme0n1p1
UUID - db81b2af-0d6d-4ad4-9db5-f68d2e36c079,
Partition Type - Linux (Bootable)
Contents - Ext4(v1.0 - Mounted at /media/ubuntu/.....
3TB storage drive - /dev/sda1
UUID - ...
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How can I make a second HD separately bootable?
I have a UEFI laptop with 2 HD successfully configured to dual boot Windows/Linux, using GRUB. The factory installed disk has Windows (+ GRUB), while the second is essentially Linux. (there is a small ...
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How does Window 10 hardcode the path to UEFI that should be used instead of GRUB?
I had an installation of Ubuntu since > 3 years working well in a dual-boot setting with Windows 10. 90% of the times I use Ubuntu only, but today I booted into Windows to play a game and it took me ...
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Installing Ubuntu without external media, UEFI for recent versions
I have a new laptop, on which I would like to setup a dual-boot configuration with Windows 10. Windows 10 is installed on the main SSD, and I plan to install Ubuntu on the 1TB external HDD by creating ...
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Error occurred while mounting /boot
I wanted to remove Windows 7 and Ubuntu 13.10 from my laptop and just create one partition for Ubuntu 14.04, but this seems to be more difficult then I thought it would be.
Installation seems to go ...
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NVME Disk failure causing boot partition corruption, bad-superblock error
I recently installed Ubuntu 18.04 Server on the nvme drive of a PC. During installation, I chose to use GPT and EXT4. After operating normally for a few weeks, the system had a disk failure, and then ...
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Mok Manager/NVIDIA Driver Issue After CUDA Install
While installing CUDA 10.1 (via the network deb) on Ubuntu 18.10, I was asked to set up a password for Mok. When I rebooted my computer I was met with the Mok Manager blue screen, where I presume I ...
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Grub rescue prompt after Ubuntu 19.04 installation
I have been trying to install 19.04. After installation I ended up with grub rescue prompt. Tried to fix using boot-repair. But couldn't fix the issue. Can someone please take a look at this:
http://...
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failed to install grub, ubuntu 17.04 installation [duplicate]
Linux newbie here
I've tried to install Ubuntu 17.04 but it crashed and show this message dialog " the 'grub-efi-amd64-signed' package failed to install into /target/. Without the GRUB boot loader, ...
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Dual boot ubuntu 11.04 and fedora 15
I want make dual boot with feodra 15 and ubuntu 11.04 for testing features,please guide me the same.
i had done dual boot with windows and linux but not linux linux.
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Broken Ubuntu 13.10 Installation [duplicate]
I upgraded from 13.04 to 13.10 and shutdown my computer and now it boots to a blank screen everytime. The only thing there is a cross shaped cursor. I can boot to terminal using ctrl+alt+f1.
Boot ...
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Can't get to Grub (UEFI) on Sony VAIO Ubuntu 15.04 Dual Boot
Okay. I've been trying to get GRUB to load for a long time (bordering on two years of attempts). I have windows 7 on a Sony VAIO (SVS151190X) and I am attempting to boot Ubuntu 15.04 through GRUB, but ...
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Windows 10 is not booting after installing ubuntu alongside [duplicate]
I am new to this and was curious about running Ubuntu on my laptop running windows 10..
I couldn't not find the Grub menu after installing ubuntu so I went back into windows and found a so called ...
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I want to install Windows 10 alongside my Ubuntu [duplicate]
I have an issue where i want to install WIndows 10 alongside Ubuntu 18.04 LTS because i can't play most of my games such as Roblox. If i do so, Windows will eat the GRUB bootloader and i will have to ...
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Critical Failure, need to reinstall
I unfortunately in my naivety, destroyed my Ubuntu 18.04 LTS installation on my HP pavilion laptop in one line involving the "rm" command.
I can only access the GRUB command line by pressing F10 at ...
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Desktop freezes shortly after login
I recently installed Ubuntu 19.04 (not a dual boot, it's on its own dedicated disk) and shortly after login, the desktop freezes and this keeps on happening.
I have a Nvidia graphics card, which ...
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Ubuntu grub os probe creating bad entry for Arch
I recently did a new build, and wanted Arch on it - I have heard good things about it. Naturally, I also wanted a few others on there to make sure I had something I 'knew' how to run. Neither Ubuntu ...
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Disadvantages of an encrypted /boot?
Been doing a lot of reading on Linux encryption techniques, and one that I've come across is encrypting the /boot directory by keeping it on the same partition as the root. I recall reading somewhere ...
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Regex Conversion
I'm wanting to make a command to edit /etc/default/grub and change the timeout from 10 to 2. Could anyone explain how to do this?
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Why is my GRUB menu background in ubuntu 18.04 black? [duplicate]
I installed some additional desktop environments in ubuntu 18.04, and I don't know if this has something to do with it, but around the time installing these desktop environments, I discovered that my ...
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How to install Ubuntu 16.04 or 18.04 on Dell XPS
I am trying to install Ubuntu 16.04 or 18.04 on a Dell XPS 15 9560. For that I downloaded the desktop ISO and used dd to put it on a USB drive. When booting the laptop I use F10 to select to boot from ...
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Grub rescue with no linux partition
I was loading ubuntu off a usb alongside Windows 10, after restarting I am getting the grub rescue menu with "no such partition". I can see my different partitions with ls but all of them return "...
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Black Screen with Cursor After Nvidia Update in Ubuntu 16.04 Xenial
Trying to "fix" an error, I seem to have made things worse. Upon boot, I was getting a failure of some sort. I got details by trying to send a bug report and it said it was something about building ...
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boot-repair fails with 'No known boot loader is installed in the MBR of /dev/sda.'
I'm running a Windows 10/ubuntu dual boot system and have successfully used grub as boot manager until today. However, today the system unexpectedly failed to display grub at startup and instead ...
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Cannot boot into Ubuntu (12.04) after putting Sapphire 7770 OC on my pc
I have the following problem:
I have 2 hard disks on my pc. My first disk is a 500 GB hd and I have got Ubuntu 12.04 installed a long time now. My second disk is a 2TB disk in which I just installed ...
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Custom fstab + grub menu in bootable persistent USB created with mkusb
I have created a custom live CD image (erm... live USB, I suppose it'd be more accurate) through a combination of Cubic (to generate a custom .iso) and mkusb to provide it with persistency through a ...
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Ubuntu 16.04 partition doesn't boot after resizing
I hope you guys can help me because I'm beginning to be hopeless to find my data and all my work...
I spent 2 days going through many forums to find a solution but nothing works.
This is my problem:
...
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Dual Booting Mistakes & Installation Headaches [duplicate]
Please forgive me; I will attempt to keep this as short and to the point as possible
Pre-Context:
So initially, my laptop was dual booting Windows 10 & Linux Mint (this was my first instance in ...
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Ubuntu Dual Boot UEFI vs Legacy Boot Issues
A little background, I’m trying to install xubuntu on my mom’s laptop HP Envy17 Windows 7.
Initially, I was having issues installing and found a fix where I setup a 200MB EFI partition. I’ve managed ...
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Backup of GRUB2 on both UEFI and BIOS systems
Currently I have two laptops dual booting Ubuntu 19.04 and Windows 10:
Asus G74SX - dual boot on the same SSD (BIOS)
Dell XPS 13 9350 - dual boot on the same NVMe SSD (UEFI)
I have both laptops ...
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Can I trust Boot Repair when it says "There was an error. You can now reboot"?
My laptop used to have three operating systems on the same hard disk: Windows, Ubuntu 14, Ubuntu 18. I tried removing Windows with OS-Uninstaller and got some error messages. I tried recovering with ...
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