Questions tagged [grub]

This tag is ambiguous: use grub2 or grub-legacy as appropriate.

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White screen after waking up from suspend - Ubuntu 18.04LTS

I have AMD CPU and AMD Radeon graphics. The screen remains white after waking up from suspend however processes in the background work like I can still log-in by keyboard and shut down the system by ...
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2answers
35 views

GRUB boot loader not shown on system startup

I am using Windows 10 installed on SSD( 256 GB) and Kali Linux Installed on HDD(1 TB), After successful installation of Kali Linux, the GRUB bootloader is not displayed on startup. I am not getting an ...
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i have install kali but i can not get the menu for windows or kali while starting a PC

i have install kali but i can not get the menu for windows or kali while starting a PC i have a bottable kali os in pendrive i have disk parts as sda1=EFI SYSTEM sda8=Linux Filesystem sda9=Linux swap
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1answer
20k views

How to use os-prober to find MS-Windows boot data?

I saw Dual boot - Installed arch and windows entry disappeared on grub and I have the same/similar problem. I have Grub and it shows only Debian setup and not MS-Windows. I also tried the following ...
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1answer
68 views

Uninstall grub from Debian (I'am using systemd-boot!)

The first thing I do with a new Linux box is to install systemd-boot. Grub, one would think this abomination was made of the hand of MS! Okay, back to subject: I just ran an upgrade on my new Debian ...
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2answers
29 views

grub problem after removing ubuntu from dual boot PC

I uninstalled the Ubuntu partition on my Acer Predator system with Windows 8.1. I went into BIOS and set boot to my windows installation disk, but the PC now goes to the grub command line. I tried to ...
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1answer
894 views

GRUB Error: grub-install: error: failed to get canonical path of `/cow'

Getting this error while downloading grub. ubuntu@ubuntu:/boot/grub$ sudo grub-install /dev/sda Installing for i386-pc platform. grub-install: error: failed to get canonical path of `/cow'.
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35 views

Hide Grub Menu - Linux Mint 19.2

For some reason on my Samsung Ativ Book4, after installing Linux Mint, the grub menu is showing and I want to be be able to boot directly into Linux Mint 19.2 without having a loader showing the ...
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2answers
1k views

External Hard drive will only boot on one computer

I have an external drive with Linux Mint 18 on it. It boots to my desktop, which is where I used the live CD to install the OS onto the external drive. However, when I try to boot this external drive ...
2
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1answer
10k views

Elementary OS installation failure

I've been trying for a few hours now and I still cannot find out why I cannot install Elementary OS. Every time I try to install it I get: the 'grub-efi' package failed to install into /target/ I ...
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0answers
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Change windows partition from /dev/sda4 old HDD to /dev/sdb4 new SSD contains Windows 10 in GRUB

I had my old HDD dual booted with windows and Ubuntu 18, I recently migrated the windows to the new SSD, but I want the Ubuntu to be in the old hdd, how to change the windows boot loader location to ...
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1answer
935 views

How can i dual-boot FreeBSD and PC-BSD — with GRUB2 in MBR?

I have a computer with several operating-systems installed on different partitions: FreeBSD PC-BSD Solaris Extended Partition / -partition for Linux-Mint Swap for Linux-Mint /home for Linux-Mint / -...
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0answers
36 views

How grub tells kernel where to find initramfs?

In grub there is the following line which loads the initramfs file into memory: initrd16 /<initramfs_file>.img But how actually does kernel knows that its init is in that image ? Is it some ...
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1answer
31 views

Booting a different GRUB entry the next time only

Is there a way to boot another OS or a different kernel the next time the machine reboots, but on the reboot after that go back to the original default?
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2answers
2k views

Symbol 'grub_file_filters' not found on Kali Linux VM

After apt-get update; apt-get upgrade successfully on my Kali Linux VM, restarted to finish some installations and was taken to grub rescue mode. On grub rescue > ls, returns: (hd0) (hd0,msdos1) (...
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11 views

mmcblk mounted as 1 -> root=UUID fail finding rootfs

I just upgraded Linux kernel (from 3.10 to 4.14), and now mmcblk rootfs partition as mmcblk1 (while in the older kernel in mmcblk0). I would have assumed that things should yet boot correctly from ...
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2answers
11k views

not syncing vfs unable to mount root fs on unknown-block(0 0)

I had a windows10 and Manjaro on my laptop and everything was Ok. last day I've installed Kali Linux in another partition. It has installed correctly and it works fine. But the problem is when I want ...
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1answer
29 views

How can I find the documentation for “emergency mode” when attempting to boot into Linux (Mint in my case)?

I know that a lot of questions have already been asked about emergency mode when booting a Linux distro. (Seemingly Mint, Ubuntu, Redhat all have it.) Does it have documentation? What entity does it ...
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2answers
72 views

Accidently deleted kernels in the /boot directory and the computer will not boot

I've deleted some of my kernels in the /boot directory and saw that I've deleted the kernel that I was booting from by using the command 'uname -a'. Is there a way to change kernel in my grub.cfg so ...
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15 views

SUSE tumbleweed. GRUB does not charge previous OS

I installed OPEN SUSY Tumbleweed, in an independent partition. In other partitions I had MXLinux 18, /home, /boot partitions. After installing Tumbleweed, it only charges OPENSUSE in the grup. I ...
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1answer
965 views

Dual boot - Installed arch and windows entry disappeared on grub

I've installed Arch on a partition, and installed grup as the wiki says grub-install /dev/sda grub-mkconfig -o /boot/grub/grub.cfg Now I only get Archlinux and Advanced options and no Windows. ...
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4answers
3k views

Cannot reset root password via grub

I am using Redhat Linux 5. I forgot the root password i set while installing linux OS. After rebooting right after the installation, entering root password is needed of course. So the following is ...
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2answers
976 views

Linux Windows dual boot UEFI BIOS confusion

I'm trying to install a Linux Mint dual boot on an old Windows 7 laptop. The laptop has UEFI (plus legacy BIOS mode as you'd expect) and it seems that HP used the legacy setting when they installed ...
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1answer
34 views

Ubuntu 19.04 restart lands in GRUB menu

I am certain that I've screwed up something while working on neatly installed Ubuntu 19.04. It's a dual boot on ASUS and after installing 19.04, a restart usually lands in GRUB menu and issuing an ...
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1answer
274 views

Stuck in BusyBox initramfs while booting Parrot OS 4.7 I don't know what to do

I installed Parrot OS 4.7 on Dual Boot with Windows 10 and this happens during booting I tried deleting the partition and reinstalling Parrot OS again but still the same issue! As you can seeThe image ...
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2answers
34k views

What do the kernel parameters acpi_osi=linux and acpi_backlight=vendor do?

I had troubles with the screen brightness control in my laptop and I fixed it by adding the acpi_osi=linux and acpi_backlight=vendorparameters to the filegrub.cfg. I'd like to know what these ...
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1answer
19 views

Grub shown for the only system

I've been having Kubuntu 18.04 for a while. After that I installed Kubuntu 19.04 over previous (I changed disk part settings to create volume that can be encrypted thus there is no Kubuntu 18.04 ...
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2answers
7k views

32bit EFI with 64 bit linux OS. Can it be done?

I have a 32bit ubuntu linux install on an hp stream 7 tablet. For the sake of long term support I would like to install 64bit ubuntu linux on this device. The tablet has a 64 bit intel baytrail ...
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0answers
23 views

sda1 /puppy_bionicpup64_8.0.sfs not found

I am new to working with linux specially when it comes to remastering. The company i am at has a need/requirement of developing and having the build of a java program in any linux. building the java ...
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2answers
919 views

Boot to windows installer from USB drive in GNU Grub

When I installed Backtrack 5 R3 I chose to dual boot, and it completely erased my BIOS and installed GNU Grub as the first thing that shows up when I boot up. The "Press escape for startup options" ...
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1answer
20 views

Chainload EFI grub2 from i386-pc grub2

Is it possible to chainload grub2 with EFI from i386-pc grub2? I've tried grub> chainloader (hd1,gpt1)/efi/grub/grubx64.efi But I got the "invalid signature" error. Thanks.
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1answer
891 views

Booting from GRUB command line, says partion doesn't exist

I have found some related questions but none has solve my problem. I have a laptop with a hard disk with Windows. I wanted to install Debian in a second hard disk so I attached it with a caddy and ...
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0answers
31 views

Why don't we put GRUB config files on the ESP?

I have been reading through GRUB manuals, and one there is one choice with respect to GRUB that doesn't seem to make sense to me. Every tutorial that I have found chooses to install GRUB "tethered" to ...
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2answers
35 views

Delete Dual Boot on Windows

I have Windows 10 operating system on HP Notebook laptop. I have installed Kali Linux on another partition and both the operating systems work fine (I am able to use both of them).Whenever I turn on ...
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1answer
3k views

Blinking cursor after new partition and install (ubuntu-mate)

Following these instructions exactly: https://ubuntu-mate.community/t/gpar...dows-users/797 https://ubuntu-mate.community/t/inst...lse-method/651 to partition a 1TB SSD and install Ubuntu-Mate off a ...
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1answer
48 views

How to automatically repair the grub on debian 9 in each boot

As the title says, I need an automatic way to repair the grub in case it breaks. I have a pc with local servers (Nginx, PostgreSQL, etc.) in a store, in this city the power cuts are very common and ...
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1answer
873 views

Generating grub.cfg without Linux installed

My dual boot machine went haywire yesterday, and seriously corrupted the Linux partition. Among the corrupted files were: The entire /boot directory Quite a few stuff in /bin "No problem", I thought ...
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1answer
1k views

grub rescue insists on finding normal.mod in non-existant folder “i386-pc” while all *.mod files are in “x86_64-efi” folder

I have a dual boot Debian 9 (controls the boot process) and W10 being the other possible boot. After performing a simple overclock setup over the BIOS (MSI X399 motherboard), the computer now sends ...
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2answers
2k views

Booting from an lvm-cached volume

I created a cache pool following this article. The process seems to be successful. After doing an upgrade-grub and rebooting, Grub complains that it can not find the root volume (showing a UUID). - ...
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1answer
976 views

Changing resolution : with X and without X

I'm working on an Ubuntu server without X and I would like to easily change the resolution. In order to do that, I have to specify GRUB_GFXPAYLOAD_LINUX=1280x800 in the file /etc/default/grub, then ...
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0answers
29 views

System Boot order not found

So here is the problem: I started up windows and created a partition. I restarted and tried to install Fedora30 from a USB. All went fine until, at the end of the installation process, there was an ...
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2answers
61 views

How does BIOS bootloader know which disk to use?

As I understand it, the GRUB bootloader on a BIOS system (and most other bootloaders for that matter) are comprised of 3 parts. The first part (stage 1) is stored in the first 448 bytes, which is ...
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1answer
40 views

Dependency failed for /boot LUKS on external USB drive after Debian update initramfs

Please somebody help me :( after a firmware update my Debian Sid with encrypted LUKS root does not boot clean anymore. At boot, after inserting my passphrase, there are a bunch of messages and a ...
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1answer
1k views

How can I manually replicate Manjaro Setup's automatic full-system encryption setup?

When I install Manjaro (16.10.3) from the LiveCD using the erase drive + encrypted option, it seems to create a setup like the following: Encrypted /dev/sda1 holding / and encrypted /dev/sda2 used as ...
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1answer
60 views

Debian 10 only boots to GRUB (LUKS + LVM)

On reboot, my new installation of Debian 10 (amd64) only spits out a GRUB shell. The operating system is not loading. My disk is GPT, with the first parititon being ESP (/dev/sda1), formatted FAT32 ...
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1answer
121 views

debian and grub with raid10+lvm+luks

I set for testing a virtual machine with debian machine is so configured 4 disk in raid10 software the md0(raid10) in encrypted with luks on the luks(luksmd0) I have create the vg (debian2-vg) wich ...
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1answer
34 views

How to edit grub config manually?

I have a USB Debian installer and I would like to add a new menu item to the grub menu (Automated install with some boot parameters). I did find grub.cfg and I added my custom menu item but it does ...
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1answer
61 views

Grub not starting after moving drives

So I've got a Debian 9 machine with 5 hard drives in it. I tried moving these drives to a new machine and hoping they would boot. When I did this, I got "normal.mod not found" and it kicked me to grub ...
43
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7answers
128k views

Set default kernel in GRUB

How can I pick which kernel GRUB2 should load by default? I recently installed a the linux realtime kernel and now it loads by default. I'd like to load the regular one by default. So far I only ...
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1answer
56 views

What does `swapaccount=1` in GRUB_CMDLINE_LINUX_DEFAULT do?

In the question Limit memory usage for a single Linux process it was mentioned to change the file /etc/default/grub so that GRUB_CMDLINE_LINUX_DEFAULT contains GRUB_CMDLINE_LINUX_DEFAULT="...