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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What are and how are these files different under /boot?

In my system, (ubunt 16.04), when I type uname -r, I get 4.15.0-33-generic when I do ls /boot/*4.15.0-33* -l, I get -rw-r--r-- 1 root root 1537455 8월 16 06:00 /boot/abi-4.15.0-33-generic -rw-r--...
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Ubuntu 1604 Mate, takes 4 Minutes to load, short splash screen and weird Login screen

I'm running Ubuntu 1604LTS on a Dell Vostro 1710 and Ubuntu takes forever to load. In addition to this, the plymouth splash screen is always upended, which means I get the kernel messages instead. ...
1 vote
1 answer
292 views

Boot fails after "apt-get upgrade"

I've been trying to migrate a VM from Virtual Box (never using that garbage ever again) to VMWare. I was able to import the VM into VMWare and get it to boot. Once I get into VMWare I run a simple ...
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1 answer
1k views

ubuntu 18.04.1 with Windows 10 dual boot - 'grub-efi-amd64-signed' error hell?

I have Windows 10 and I am trying to install ubuntu 18.04.1 with no success. Here is my system info: HP Envy x360 Laptop with SSD (with GPT) I have 100 MB EFI System parition (installed with Windows ...
2 votes
1 answer
2k views

Accidentally deleted all contents of /etc/grub.d [duplicate]

Was trying to tweak a menu entry and in an effort to get it to work I deleted all contents of /etc/grub.d. Is there a way I can easily restore it? This question has to be a duplicate by now so if ...
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2 answers
1k views

Whats the easiest way to install Windows 7 via USB side by side with Ubuntu (Other Questions Below)?

I am trying to install Windows 7 side by side with Ubuntu. The computer is already running Ubuntu and I have partitioned the hard drive formatted it for NTFS and have a USB copy of the .iso of Windows ...
1 vote
0 answers
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Windows disappeared from GRUB after reinstalling Ubuntu [duplicate]

I used to have a dual boot with Windows 7 and Ubuntu 14.04. I wanted to update the latter to 18.04, so I made a bootable USB with Rufus and made the replacement. The Ubuntu installer itself told me ...
1 vote
1 answer
5k views

Cannot boot windows anymore / grub not detecting windows [duplicate]

Some info first: I have 2 SSDs Windows 10 is installed on disk 1 Ubuntu is installed on disk 2 Boot/BIOS is set to "Legacy" and not "UEFI" First time I tried to install Ubuntu to the second disk I ...
2 votes
0 answers
932 views

HP Laptop will not boot after shutdown

I have installed ubuntu (MATE, minimal installation) on my laptop (SSD, HP brand), and it is a single boot system (no Windows). Everything was OK for a few days, and I shut down and restarted ...
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1 answer
570 views

Grub installation keeps failing 18.04

i am having a clean install of Ubuntu 18.04 on a new HP laptop. I tried several distributions before ubuntu like manjaro,mint and opensuse and i only managed to boot live ubuntu,mint and opensuse ...
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1 answer
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Clone backup/restore Ubuntu 18.04 in a dual boot Win/Ubuntu

I have a dual boot Win 7 + Ubuntu 14.04LTS + Grub. I mean to have a dual boot Win 10 + Ubuntu 18.04LTS (+ Grub, I guess), with my data in Ubuntu transferred. For this, I guess the right steps are: ...
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3 answers
829 views

My computer is unable to boot windows 7 after installing ubuntu 18.04, but windows is seen in GRUB menu. what should I do? [duplicate]

At the grub menu when I select windows 7, it does not take me there instead, it just returns to the grub menu and ask me to select the OS. I have no problem booting to ubuntu. Would you kindly help me ...
7 votes
1 answer
11k views

Booting from USB Grub 2 Invalid EFI

This is my first time on the forums here, but I recently installed ubuntu 14.04 and would like to re-install it via USB. I have been trying for about two days now to use the grub menu and have looked ...
1 vote
0 answers
535 views

PC booting on "The environment block is too small"

I have an issue with my Asus X555L. When I boot a message appears "The environment block is too small, press any key to continue" But when I press, there is a black screen and nothing happens. I ...
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481 views

Clean install 18.04 on top of existing 14.04 in double boot Win 7 + Ubuntu 14.04LTS + Grub

My system is a dual boot Win 7 / Ubuntu 14.04LTS / Grub. My objective is to have a fresh install 18.04 on top of the existing 14.04, given there is the other OS. I found several sources, but mostly ...
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2 answers
1k views

Problem with Windows Boot Manager/BIOS in dual boot

PC model- Lenovo Ideapad 300 OS- Windows 10 dual booted with Ubuntu 18.04 I am not able to start windows or view grub menu or see Lenovo logo(which was visible earlier) after one fine day I put my ...
3 votes
1 answer
2k views

Ubuntu external SSD not booting on my desktop, but works on my laptop

I've installed Ubuntu 18.04 successfully onto an external Samsung T5 SSD and it works well with my laptop (ASUS UX303UB: https://www.asus.com/Laptops/ASUS-ZenBook-UX303UB/ ). However, when I try to ...
1 vote
0 answers
547 views

Help for install grahpical boot loader in Linux Ubuntu Budgie Desktop 18.04.1

I use Ubuntu Linux with Budgie Desktop 18.04.1 It has a very nice and aesthetic interface, my big problem that I have installed Windows 10 and Linux Ubuntu Desktop Budgie 18.04.1, but I do not like ...
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Ubuntu Partition being shown unallocated, and after running Boot Repair tool GRUB disappeared

Yesterday, I extended the C drive in Windows. Due to some restrictions, I had to move some partitions to the right side (using third party software) so that I can merge the C drive with the immediate ...
1 vote
0 answers
473 views

Ubuntu 18.04 upgrade error on dual boot with Manjaro

I've been running Ubuntu 18.04 as a dual boot with Manjaro for the past few months without problems, but recently I get the following error message when I try to install upgrades: linux-image-4.15.0-...
0 votes
1 answer
188 views

What happened to tux4ubuntu?

I was just wondering if someone could tell me what happened to tux4ubuntu? I did a clean install today and was about to change back to the tux boot animation but now the blog doesn't exist. Any idea ...
16 votes
2 answers
31k views

"pci=nomsi,noaer" in "/etc/default/grub" : any downside?

Because my kern.log and syslog files were growing to immense size, I added the subject entry to a line in /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash reboot=efi,pci pci=nomsi,noaer" ...
0 votes
1 answer
594 views

How to boot Ubuntu from grub? [duplicate]

I wanted to reinstall Ubuntu from the hard drive. I followed the instructions from the official site to install grub and move the Ubuntu iso in the grub folder. After rebooting, the grub> prompt ...
1 vote
1 answer
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Restore grub in Ubuntu

Every time I open my computer I have to press F12 (Lenovo computer boot management) to be able to go to Ubuntu to get GRUB to choose Ubuntu Is there a way to to configure GRUB so that it's boot menu ...
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1 answer
676 views

USB keyboard won't work after upgrading kernel to 4.18(Ubuntu 18.04)

I have a two month old Intel NUC8i7HNK, and when I saw Vega M support go out in kernel v4.18 I decided to make the unwise decision of upgrading the kernel of my perfectly stable 18.04 install to this ...
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1 answer
447 views

Remove Windows 10 from 18.04 desktop boot menu

I replaced a copy of Windows 10 with Ubuntu 18.04 desktop successfully. The only problem that remains is that the Windows 10 boot selection entry still appears. I know that disabling the OS probe will ...
4 votes
2 answers
1k views

Can booting Windows from GRUB cause BSOD?

Since installing Ubuntu 16.04 as a dual-boot setup with Windows 10 I'm having frequent blue screens of death in Windows (about 5 per day). All the error codes are related to a problem in Windows ...
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0 answers
622 views

Install grub on local hard disk

I have a hard drive which contains my previous installation of Ubuntu as my laptop got damaged (I am currently using it as an external hard drive). Now I have managed to copy my Ubuntu installation ...
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0 answers
671 views

Cryptmount / setup is missing from initramfs

So silly me decided to do a "apt autoremove" which decided to remove cryptmount which if I was more vigilant would have realised from the error messages that came up during the uninstall that I should ...
0 votes
0 answers
230 views

Cannot dual boot Acer Aspire V3575G

I have an Acer Aspire V3575G with Windows 10 installed (UEFI mode) and I want to dual boot with Win 10 and Ubuntu 16.04. I've followed several tutorials, I've read a lot, I also asked my friends who ...
1 vote
1 answer
7k 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. ...
1 vote
0 answers
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Can't boot win 7 from GRUB, but can from its own bootloader [duplicate]

I have installed Ubuntu 16.04 on a drive where I already had Win 7 installed in UEFI mode. Ubuntu installer nicely detected Windows and added it to the GRUB menu. However, when I choose the ...
1 vote
1 answer
623 views

Grub menu does now show while booting [duplicate]

I have installed windows 8.1 alongside with ubuntu 14.04. I had to reinstall the ubuntu like I did many times but this time when I installed ubuntu and started notebook it does not show Grub menu it ...
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2k views

Ubuntu starts with a grub command line instead of a GUI

I already had Windows 10 on my computer, and I wanted to install Ubuntu on my computer as a dual boot. I downloaded the Ubuntu 18.04.1 LTS version, and use Rufus to create a bootable USB. I looked up ...
0 votes
1 answer
547 views

Can't enter to BIOS after debian install only black screen [closed]

I have Acer Aspire laptop with windows 10. recently I installed Debian 9 in a different partition and everything went fine. The second time I tried to boot into bios I only have a black screen with a ...
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0 answers
45 views

I can't boot up my Ubuntu

I have a problem here and that is: I installed Ubuntu and encrypted the hard drive when I installed it, after a while, I decided to duel boot Ubuntu and windows 7, I created a partition in my other ...
1 vote
1 answer
1k views

Installation of Ubuntu 18.04 on an Acer with UEFI - grub installation doesn't work

I'm trying to install Ubuntu 18.04 on an Acer Aspire ES15 with UEFI. Originally, it was delivered with Windows 10, but now I don't want to use them at all. The intention is to have only Linux here ...
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0 answers
502 views

How to solve this grub problem on Ubuntu 18.04 [duplicate]

I get a black screen with the following text when booting Ubuntu 18.04. GNU GRUB version 2.02 Minimal BASH-like line editing is supported. For the first word, TAB lists possible ...
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941 views

Should I use grub legacy or grub2 for a dedicated grub partition?

A while back I had my dual-boot system running Ubuntu 14.xx, and Windows 7 (x64). I created a dedicated grub partition. I recall having used grub legacy rather than grub2 because the tutorial I was ...
1 vote
2 answers
4k views

How to bring up grup boot menu in my acer laptop?

I'm new to this forum and Ubuntu. I recently installed Ubuntu 18.04 on my Acer E5. When Ubuntu boots up it directly boots. There is no grub menu. How do I bring it up?
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Cannot access Windows 10 after installing Ubuntu [Tried: sudo update-grub, os-prober, and BootRepair] [duplicate]

Disclaimer: My tech skills are limited. I can follow instructions found online, but I'm not a programmer. After installing Ubuntu 18.04 LTS on my PC, I can no longer access Windows 10: it does not ...
1 vote
1 answer
1k views

Boot problem with custom preseed in 18.04: /dev/ram does not exist

I'm trying to adapt our preseed installation image from 16.04 to 18.04 These are the lines from the grub txt.cfg: kernel /casper/vmlinuz append preseed/file=/cdrom/preseed/sc-server.seed debian-...
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How to install BURG on Ubuntu 18.04?

Is there a way to install burg theme with grub-customizer or is there any other installer for it? Because I did not find any.
1 vote
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726 views

UEFI boot fails after Ubuntu 18.04 kernel update

Did a apt dist-update on Ubuntu 18.04 couple of days ago. The system is stuck on grub prompt since then. Have attempted to resolve this by booting into Ubuntu Live DVD, mounting and chroot'ing into ...
0 votes
1 answer
579 views

How to open GNU GRUB with timeout 0 and default boot set to memtest?

So I was updating the /etc/default/grub file and was trying to make the boot time faster, so I set the timeout=0. I also set the default boot to memtest by accident. After updating the grub and ...
2 votes
0 answers
859 views

Ubuntu asks me to insert a password in order to install third party drivers during the installation

As said in the title: I'm attempting to install Ubuntu 17 in dual boot with Windows 10, but everytime that I install it, during the installation, it asked me to provide a password for the secure boot, ...
0 votes
1 answer
256 views

Problem while installing Lubuntu

I have an old IBM T30 laptop on which I want to install Lubuntu. I created a live Pen Drive using UnetBootin. Installation was running smoothly until i got an error message saying that Grub has failed ...
3 votes
1 answer
2k views

GRUB2 chainloading a loop device

I've got a USB stick with many ISO files of various operating systems, currently GRUB is configured on this stick to load them as loopback and run them directly, however for one of them (a Windows 10 ...
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2 answers
2k views

After many upgrades to my server, still booting into old kernel

I am running a self-managed VPS, hosted by a local (Australian) company; recently I've upgraded in quick succession from 14.04 to 16.04 to 18.04. But through all these upgrades, although I've ...
0 votes
1 answer
384 views

Slow Boot in Ubuntu 18.04

So I recently wiped out my HDD on my Windows 10 laptop and installed Ubuntu because I have been using it on all of my other devices. Since the beginning of my install I've had slow boot. ~ 2-3 minutes ...

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