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Questions tagged [grub2]

Grub2 is Grub version 2, a multiboot bootloader from the GNU project.

1 vote
0 answers
36 views

grub conflicts with grub2

What should I do now? I want to add windows 10 into grub so is grub2 recommended? I renew /usr/sbin/update-grub : exec grub-mkconfig -o /boot/grub/grub.cfg "$@" ======> exec grub2-...
张绍峰's user avatar
  • 137
0 votes
0 answers
65 views

Unable to get to switch_root mode in CentOS 7

I am trying to reset the root password on my old drive, and I followed this instruction: https://www.redhat.com/sysadmin/recover-root-passwd However, instead of booting into a 'rescue' prompt as the ...
HCSF's user avatar
  • 165
0 votes
1 answer
390 views

Add "Windows 10" (with Bitlocker encrypted) boot entry to GRUB [duplicate]

I have a dual boot system with Windows 10 & Ubuntu Unity 23.10. My main system is the Ubuntu system, but from time to time i have something todo on Windows. Currently im switching with the BIOS/...
Marc's user avatar
  • 403
1 vote
0 answers
44 views

Grub script how to remove menuentries

I made a grub script to detect bootable disks and show them on grub menu. It is working but I want to put a rescan button and to make that first I need to remove old menuentries. How can I do? My ...
0x01010's user avatar
  • 111
0 votes
0 answers
108 views

bootmgfw.efi not able to load further after being downloaded by network during PXE, but loads fine if loaded from disk

I am trying to load into winpe using bootmgfw.efi, it is being downlaoded by TFTP download looks fine, but after downloading, it is stuck at a blank screen and TFTP log says downloaded is the last ...
Sagar C A's user avatar
1 vote
0 answers
139 views

Boot android x86 installed on disk image file with grub

I have it installed on a file a86.img in disk which I boot with qemu. Here is what I have so far but it gets stuck at Detecting Android x86... menuentry "Android x86" --class android { ...
Dennis M's user avatar
0 votes
0 answers
72 views

Grub2 insists on including zfs module when it does not exist

I'm creating a bootloader using grub2-install, it works fine but it keeps emitted this extraneous message: Booting `SUSE Linux Enterprise High Performance Computing 15 SP5' Loading kernel ... error:...
rusty's user avatar
  • 125
0 votes
1 answer
157 views

How to install Linux Porteus on an Acer Aspire SW5-012?

I would like to install Linux Porteus on my Acer Aspire SW5-012 tablet. It has an atom processor which is 64-bit but a UEFI bootloader which is 32-bit. I was told that I could use Grub2 and make 64-...
tsisarishotmailcom's user avatar
1 vote
1 answer
5k views

Installing GRUB2 to a USB drive as a backup bootloader

I want to install GRUB2 onto a drive with no iso on the drive, but as a secondary bootloader. I'm using archlinux and want a backup that doesn't have to be hard installed on my machine. How would I go ...
silvanathecat's user avatar
0 votes
0 answers
75 views

During GRUB stage, Intel GPU-based system freezes if video is interrupted

I am in hell trying to figure out what is broken here. I am running linux (both Debian Bookworm and Buster have been tested, but the problem happens presumably before the kernel loads). I have a ...
Dave's user avatar
  • 21
0 votes
0 answers
478 views

GRUB2: Configure multiple Windows and Linux operating systems on single EFI system

I've installed two instances of Windows 11 and one instance of Ubuntu 23.10 on my laptop with a single SSD. After install my file system looks like this sudo lsblk -o NAME,FSTYPE,SIZE,MOUNTPOINT,LABEL ...
NanoBreaker's user avatar
1 vote
2 answers
4k views

How to boot system normally from grub prompt?

How can I boot Linux from the grub> prompt, as if I were booting from cold? I have full disk encryption. When I fat-finger the encryption password, it bumps me to grub rescue (bonus points if you ...
some bits flipped's user avatar
2 votes
1 answer
3k views

configure grub to work with either UEFI or PC BIOS boot

Is there a way to use GRUB to boot in a system that will only boot in UEFI mode AND (without changing anything on the disk) also boot in a system that will only boot in PC BIOS (legacy) mode? I want ...
Juan's user avatar
  • 609
1 vote
1 answer
973 views

Odd message during boot using GRUB

I use Secure Boot, followed by GRUB2, set up to boot Debian 12 and Windows 11 at the choice of a user. Right after the user chooses Windows and hits ⏎, we see a black screen with two white lines on it ...
user avatar
1 vote
0 answers
138 views

How to override grub_arg in grubby for non-default grub entries in Fedora 38?

After discovering and working around a bug in grub2-set-password, I am now able to set password protection for grub2 in Fedora 38. While this method asks for a password when trying to edit a grub menu ...
jhu's user avatar
  • 141

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