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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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My linux partition/grub isn't bootable

I've tried installing ubuntu on my laptop like I've done in many other places but I can't get it to boot. The install goes ok, everything seems to do what it's supposed to do, but when the time comes ...
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how to create EFI partition from scratch [duplicate]

I have an internal SSD containing a single partition with Ubuntu on it. I am currently booting from this partition. However, to actually boot a second (HDD) drive is required which has an EFI ...
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Upgrade to 18.04LTS - grub boot broken, error: unknown filesystem

I recently upgraded my quite old (I think installed around 6 years ago, and upgraded a few times since) installation a few weeks ago. When rebooted it won't boot up with the following grub error: '...
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The installation type table is empty while dual booting windows and lubuntu on HP Pavilion Gaming Laptop 15t with intel optane

Having great trouble while dual booting my laptop which has Windows 10. I created some free space from my C drive for ubuntu. But in the installation type screen , it does not show any partition of my ...
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After upgrading from 17 to 18.04 due to graphic card drivers (Guess) I only get black screen afte login.

I can not access grub menu via any key combination(shift, esc, ctl+alt+F1,F2...) grub menu shows only in one second and disappears. Is there any way to fix it? I am ready to reinstall it via liveusb ...
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24 views

GRUB boot loader error when installing Ubuntu in dual UEFI boot along side Windows

I have some trouble installing Ubuntu on my new computer. I encountered this error and I did not find a solution to my problem yet. I disabled secure boot and fast boot. Here is what I want to ...
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22 views

how do I again dual boot my laptop? facing problem with grub

I had dual booted laptop with windows 10 and deepin os. But then I deleted my deepin os parition from disk management in Windows 10. After that I tried to dual boot again but it failed everytime, it ...
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35 views

Dual Boot (Win 10 && Ubuntu 18.04 LTS)

Alright, i've read every single thread on here regarding this topic but still don't seem to be able to find any usefull answer. Question: I've had win10 installed and bootable on /dev/sdc and then ...
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44 views

Stuck at Installing “grub2 package”

I am trying to install Ubuntu 18.04.1 as my second OS for my HP Pavilion x360. The installation method I am using is "install alongside windows boot manager". My installation stops at "installing ...
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1answer
46 views

How to Install grub bootloader for Ubuntu 16.04 into a USB drive (Sandisk cruzer blade)?

I have installed ubuntu 16.04 (32 bit) into my USB drive. But in last section of installation i got an error that is cannot install bootloader to my USB device. I don’t know why it is so. But Ubuntu ...
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Can't boot into Windows 10 from GRUB menu, even though the option of Windows 10 is there?

I recently dual booted my Lenovo windows 10 laptop, windows 10 + Ubuntu 18.04. Installing Linux in itself was a hassle, but now it is done. However, now when I power on my laptop, I reach the grub ...
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Ubuntu 16.04 stuck on purple screen at startup on Macbook 2006

I've installed Ubuntu 16.04 32bit on a Macbook 2.1 of 2006. After the fresh install at first reboot/startup the macbook freezes at purple screen. The interesting fact is that, after the freeze, if i ...
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grub-install/dev/sda failed. Fatal error. Boot repair can't fix [duplicate]

Legacy mode is enabled. Secure boot is disabled. Using Windows 10 on HP pavilion x360 and need to dual boot Ubuntu. (I'm using the ISO on an USB drive). grub-install/dev/sda failed. fatal error ...
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1answer
36 views

error : no such device:… Entering rescue mode… grub rescue [duplicate]

Ok so I installed Ubuntu dual boot with Windows 7 last year. But I found out I never used it so I decided to wipe the Ubuntu drive from Windows. Next startup I got this error, note the grub partition ...
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Cannot connect to internet although i am connected to wifi [closed]

I am using Kali gnu/logic rolling 64-bit gnome version 3.28.2 and i cannot use internet although i am connected to the network . and the ping is also good any solutions??
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1answer
53 views

Second copy of Ubuntu doesn't appear in GRUB menu [duplicate]

I have a machine running Xubuntu 18.04 and Mint. I've just installed Ubuntu 18.04.1. Everything seemed ok but it doesn't appear in the list of boot options at startup. When I previously installed ...
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23 views

GRUB doesn't boot the default entry (Ubuntu) automatically, keyboard sends ^[[[E

I'm using Ubuntu 18.04.1 dual booted with Windows 10 on Lenovo E41-15 laptop. Some keys of my laptop weren't working since past two months. But overnight, some miracle happened and all of the keys are ...
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27 views

problem in creaing bootable win 10 [duplicate]

I installed woeusb in my ubuntu 16.04, I successful in creating the bootable win 8, But I unable to create win 10 bootable usb, I make same procedure but it shows error,
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30 views

Help! The volume boot has only 0 bytes disk space remaining I CAN INSTALL ANY LINUX DISTRO [duplicate]

I am having issues installing Linux Distro: ubuntu, kde, sorin, deepin, lubuntu. Even lower versions, I have 1 tb, 8 ram and everytime I try to install any iso impossible, I have this message The ...
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28 views

How to Increase dev/sda2 in linux (Debian) using Gparted or teminal [closed]

Practically, I'm new to Linux and I have issues, increasing the size of my sda2 partition where Linux is running. I also have tried several fixes, but it's not working completely. >> fdisk -l ...
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55 views

Dual boot with Puppy Linux and Ubuntu based distro

I'm trying implement a dual-boot with PuppyLinux (Tahrpup 6.0, Xenialpup 7.5 CE etc.) and a Ubuntu based distro (Lubuntu, Xubuntu etc.) but in the grub menu I dont get any options for PuppyLinux. I ...
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No recovery submenu option under GRUB Advanced Options

I can get into GRUB. I can enter Advanced Options. There is not a submenu there. There are editable command lines. I am trying to find the way to a new admin password, which has been lost. Any ...
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47 views

Ubuntu 18.04.1 can't boot (emergency mode)

After shutting down the PC too many times while the kernel is loading my Ubuntu 18.04.1 doesn't boot anymore, it falls into emergency mode the grub wasn't showing before: The screen after I select ...
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At a Total Loss - Beyond my ability [closed]

In summary, I had a fresh install of windows 10, installed linux. after installing linux, i could not boot into windows, it only gave me the option to boot into linux mint. Naively, I went into the ...
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31 views

Downgrade Ubuntu with Dualboot [closed]

I've got a Ubuntu 18 installation along side my Windows 10 on my laptop. I now need Ubuntu 16.04 due to some incompatibility issues. Is there a way to conveniently downgrade / replace the Ubuntu 18 ...
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0answers
22 views

Install Ubuntu along windows 10 [duplicate]

I installed Ubuntu 14.04 along the windows 10 but now I can't log in into my windows and in bios setting I havn't find any option to solve it. Could you please help me? Best regards
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36 views

dual boot windows 7 and ubuntu 18.04 on desktop, black screen in installation

I am trying to install Ubuntu 18.04 on my desktop, that is using windows 7 now. I want to install Ubuntu (not inside windows), so that my desktop cannot be run as dual boot. However, I face to a ...
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1answer
98 views
+50

Custom Ubuntu image is broken after Grub update (when using UEFI)

So I've been working on creating a custom Ubuntu 16.04.5 image. I follow the instructions here to chroot into the file system that gets put onto the computers and do apt update && apt full-...
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0answers
36 views

Windows 10 update grub rescue?

I ran Windows 10 update and during the process it restarted a few times and on the second time it completely screwed up my Grub boot manager and no nothing is loading up I get this message upon boot. ...
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25 views

machine boots to grub, how can I make it permanent? ubuntu 18.04

i was away and my server had some updates to do. i apt update && apt upgrade and my machine froze at ssh. when i got home it was completely frozen so I rebooted it. i booted into grub and ...
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Ubuntu 18.10 installation stuck at Grub2

A neighbour asked me if I could install Ubuntu on his laptop as he didn't know how. It is a HP 3168NGW, and I'm trying to install Ubuntu via a 16GB ADATA UV120 USB2 drive that the neighbour provided, ...
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1answer
43 views

Ubuntu/Windows dual boot

I'm having some trouble in dual boot between Ubuntu and Windows 10. I've installed Ubuntu in the same disk but using a shrinked partition. The problem is: My windows (or motherboard, I don't know) ...
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1answer
33 views

USB 3.1 mass storage not working in USB 3.1 port in Ubuntu 16.04

I recently upgraded form 14.04 to ubuntu 16.04 LTS on Lenovo G50-45. I also have dual boot with windows 10. 3.1 flash drive mounts automatically to USB 2.0 port, but cannot be seen in 3.1 port. sudo ...
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0answers
94 views

Dual boot Windows 10 and Ubuntu 18.04 - Boots immediately into Windows and not showing GRUB menu

I'm back to Ubuntu finally! This time again, the problem was immediate booting into Windows 10 without showing the GRUB menu. The installation was successful, and after that I logged into Ubuntu by ...
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2answers
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Install grub on a multi-partition and multiboot USB flash drive

I have the following USB flash drive partitions: /dev/sdb1 * 204800 8593407 8388608 4G b W95 FAT32 /dev/sdb2 8593408 11460607 2867200 1.4G b W95 FAT32 /dev/sdb3 ...
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37 views

Faster option switch in GRUB

I recently dual booted Windows 10 with Ubuntu and everything worked fine. I have just a problem with GRUB and I wonder how it can be fixed. When I have to select the options (Ubuntu, Windows Boot ...
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1answer
51 views

How do I get ubuntu to boot again after disk clone?

This is a question about dual boot system with Windows 10 and and Ubuntu 18.04. The dual boot was setup with wubiuefi. I cloned the boot disk to a new disk and then replaced it with the new disk. ...
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1answer
52 views

Tried basically everything and still cannot dual-boot

I wanted to dual boot Ubuntu and Windows for deep learning. I downloaded the latest LTS iso and flashed it onto a flash drive using Rufus. Then, I restarted the computer and went into BIOS. I booted ...
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1answer
30 views

Black screen booting ubuntu linux 4.15.042-generic. Not able to boot in recovery mode either

I was working with Comsol and the simulations were big so Ubuntu (18 LTS) was stopping in the middle of the simulation with the cursor locked and I had to turn the laptop off with the power button. ...
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1answer
30 views

Installed: Ubuntu 18.4 LTS but often Ubuntu 14 (previously installed) boots

I have dual boot, Ubuntu and Windows. I recently upgraded to Ubuntu 18.4.1 LTS. Occasionally when I boot up the old version 14 starts. The top line of Grub display at boot shows only "Ubuntu" When I ...
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0answers
46 views

“pcie bus error severity=corrected type=physical layer id=00e5” in installer

I got this new Asus A540U and I want to install Ubuntu 18.04.1 on it with a usb stick. It's got AMD Radeon R5 M420 2GB with Intel core i5-8250U with a 1TB HDD. When I'm trying to install after a ...
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0answers
8 views

Lubuntu grub suddenly doesnt show up

I have dual boot of windows and lubuntu on my laptop and all is working fine except for sometimes, the shutdown wont work. Last night, shutdown wont work for my lubuntu again so i just kept it there, ...
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0answers
21 views

1 usb stick with kubuntu live on and no win disk or cd dvd blanks [duplicate]

Hey guys first post new to Linux, so I’ve been trying different distros on my laptop and I’ve done the very thing anyone new to Linux would do, not being carful and overlooking basic things, so first ...
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0answers
14 views

Cannot reboot Ubuntu 14.04.5 after /etc/default/grub file updated

I have a Ubuntu 14.04.5 Ubuntu machine. I had intel_iommu=on iommu=pt in GRUB_CMDLINE_LINUX variable in /etc/default/grub. I removed it and rebooted the system. The system does not reboot. It gives ...
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2answers
477 views

Grub looking for an encrypted root UUID before the container decryption

I was cleaning Ubuntu 18.10 with bleachbit when my PC froze. When rebooting, I was stucked after Grub at BusyBox (initramfs). When exiting BusyBox, I get the message: ALERT! UUID=f6fc1852-25c6-47a6-...
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0answers
12 views

How to restore missing missing chainloader in dual boot setup

I installed windows successfully on a blank Dell laptop then installed Ubutnu 18.04 from a pen drive successfully. I was hoping this would create a dual boot system. When I restart I first see a ...
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0answers
19 views

Why does Xubuntu boot splash image take longer to appear than before?

Since upgrading from Xubuntu 14.04 to 16.04 on a Lenovo S21e notebook, the screen stays black (after GRUB) for quite a while, until the first boot splash screen is shown. (Always makes me a bit ...
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0answers
16 views

Can't load ubuntu appear grub promt command line

I can see only grub promt after starting my laptop. I must start and restart laptop several times, I tried everything, but when I select to boot from my main disk, then it's restart immediately and ...
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0answers
21 views

Grub not showing Windows 7 after updating Ubuntu 14.04

I dual boot Ubuntu 14.04 and Windows 7 (Windows being installed first) and a couple days ago I jumped onto Ubuntu to check for updates, and after it updated I found that the Windows 7 option had ...
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0answers
29 views

Ubuntu Operating System Error on Windows

I recently replaced the graphics card in my computer, switched the case, and applied new thermal paste; that is everything that I did. Strangely enough, when I booted my computer back up, at the BIOS ...