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Questions tagged [grub]

Console application permitting the user to choose between several installed operating systems.

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How to upgrade Ubuntu 23.04 to 23.10 when do-release-upgrade blocks due to grub issue

I've got an 23.04 install that needs upgrading. I know 23.04 is past its support window. Normally not much of an issue, but upgrading it to mantic runs in to some sort of a deadlock: Building ...
Eloque's user avatar
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2 votes
1 answer
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RHEL + how to prevent OS disk - sda to change after reboot

We installed RHEL 7.9 version on physical machine., when sda device was the OS. The machine has the following disks. sda - OS disk sdb - data disk sdc - data disk After reboot OS disk device changed ...
King David's user avatar
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1 answer
183 views

Debian 11 fails to update grub configuration

I have the following error when I run an update script with ansible: Generating grub configuration file ...", "Found linux image: /boot/vmlinuz-5.10.0-26-amd64", "Found initrd ...
javiers's user avatar
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When running `grub-install /dev/sdb` I get the error: ls: /dev/sdb/proc: Not a directory

I'm running the Debian 12 bookworm installer (debian-12.4.0-amd64-netinst.iso) and trying to install with GRUB and MBR because the UEFI support from my motherboard seems to be limited (I couldn't make ...
John Elliot V's user avatar
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1 answer
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Grub2 Error grub-boot-success.service: Main process exited, code=exited, status=1/FAILURE

I'm running a VPS with Alma Linux 8.8.0 with WHM/cPanel and 60 or so users, multiple websites etc. I'm regularly seeing these in the server 'messages' log: Nov 16 11:39:01 ark grub2-set-bootflag[...
Claud's user avatar
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0 answers
150 views

/grub/i386-pc/normal.mod not found with special condition

I updated my ubuntu server from 18.04 to 20.04 and reboot. after reboot I fall in grub rescue. in the (hd0,gpt2) there are some directories include grub. in grub there is i386-pc and in the i386-pc ...
Michael Cab's user avatar
13 votes
3 answers
3k views

Finding how a Linux system was booted

I have a remote server, running Linux 5.19.0-41-generic x86_64, I am trying to find out how it was booted. Apparently, it does not use systemd : PID 1 process is bash. ps -p 1 -o comm= bash ...
0x11111's user avatar
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1 answer
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pbkdf2 password on grub doesn't work on my Ubuntu 22.04 Vm

I installed a Ubuntu 22.04.3 LTS on a VirtualBox VM. After install process, I configured pbkdf2 as explained here https://help.ubuntu.com/community/Grub2/Passwords. I also verified grub.cfg after I ...
gabolander's user avatar
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156 views

grub-efi-amd64 on ovh serwer

This is ovh server. root@ns302572:/home/saltworks/panel.saltworks# sudo apt-get install libvirt-daemon result Reading package lists... Done Building dependency tree Reading ...
grek's user avatar
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How can linux system boot/reboot without bootloader installed?

Today I saw that grub is missing on my system (how that happened is another question). Checked with apt/dpkg: no grub* package installed, also no lilo or systemd-boot package installed. Also was ...
archygriswald's user avatar
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dualboot win11 + linux = BlInitalizeLibrary Failed 0xc00000bb

Recently I wipe macbook pro disk (intel cpu) and installed win11. windows works without problems. The problem born when I installed on same disk linux debian with grub. Debian works but when I select ...
Pol Hallen's user avatar
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not possible run windows from other this after install grub

I have this disks sudo fdisk -l [sudo] password for grek: Disk /dev/loop0: 91.69 MiB, 96141312 bytes, 187776 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / ...
grek's user avatar
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-1 votes
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How to install grub to a CD-RW? [closed]

My very old server only has BIOS, no UEFI, and the boot order routine aborts booting when it encounters a drive larger than 2TB. The boot order is: CDs, HDDs, USBs, network. I cannot change the boot ...
jkoop's user avatar
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how and when did my graphic card, drivers, monitor and xserver negotiate a proper resolution? Is there a way to get the supported list from devices?

I was trying to figure out how KDE or GNOME decides which resolution could be supported by the monitor and graphic card connected. I have 2 senario about this question, I will try to explain the ...
Mr.D's user avatar
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1 answer
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migrate root partition to another partiton

I have remote server with ubuntu 20.04 I can't use livecd or VM console I want to migrate my root partiton from /dev/sda2 to /dev/sda5 my disk configuration is: root@app-server:~$ lsblk NAME MAJ:MIN ...
supportth's user avatar
1 vote
0 answers
227 views

NVMe drive disappears after kernel panic

I'm working on imaging a Dell OptiPlex Micro 3000 device with Linux (custom Yocto-based OS). Grub version 2.04. I'm using an A/B partitioning scheme and trying to get the fallback to function properly ...
mitchellJ's user avatar
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1 answer
193 views

grub error after kernel update with active root LVM snapshot

The situation: debian 11 with LVM and / is a logical volume: /dev/mainvg/lv-root created a snapshot of the root partition by doing lvcreate -L5G -n bkp_lvroot -s /dev/mainvg/lvroot Now I updated the ...
archygriswald's user avatar
2 votes
1 answer
270 views

GRUB fails to start kernel after net_dhcp

I originally ran into this problem trying to redeploy a machine using MAAS, but I can reproduce it just with the already-installed OS and GRUB, with Ubuntu 20.04. The machine is set up for UEFI boot. ...
Bruce Merry's user avatar
1 vote
0 answers
1k views

Ubuntu 22.04.1 LTS (Jammy Jellyfish) Hangs On Reboot (sometimes)

I have an Intel NUC NUC8I7HNK which I have installed Ubuntu on. If I reboot the system and then reboot it again everything is fine. Reboots without problem. However, if I let the system sit for a ...
Thomas Campbell's user avatar
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0 answers
158 views

Debian Software Raid1 boot failure after trying to change one disk

I have a server running Debian 11 with 3 HDDs, each 500gb using software RAID1. I'm now in the process of upgrading so I have 2x1TB drives. To accomplish this I followed this guide. The disk I removed ...
Jonathan's user avatar
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318 views

grub2 font advice doesn't work

I'm running Fedora 31 on a Lenovo T470p, with GNU GRUB version 2.03 platform x86_64-efi . I wish to have a far larger font. As many, many suggestions on the internet advise: 1] I've added the ...
Swiss Frank's user avatar
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1 answer
995 views

Fedora 31 Grub2 configuration change isn't being applied

I've changed GRUB_TIMEOUT=-1 in my /etc/default/grub because I want the grub boot loader to wait forever for me to choose my operating system. Most of the internet says to run update-grub after ...
Swiss Frank's user avatar
1 vote
0 answers
1k views

Grub error with tpm module in Fedora

I have a problem booting my fedora 36 (in version 35 the same thing happens to me and I have tried to reinstall from 0 with the same result). When I boot the grub I get this error. error ..... tpm.c:...
estonolose's user avatar
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913 views

Volume group "luks" not found

OS: Parrot OS VM: Qemu Filesystem: Btrfs This is caused due to an improper reboot before full apt upgrade. After the reboot and entering in the Luks partition password. It successfully decrypts and ...
Zetsu's user avatar
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1 vote
1 answer
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How to recover from the GRUB losing its entries and faced with only "grub> _" at boot?

I performed a system upgrade from CentOS 7 to AlmaLinux 8 rather successfully (as noted here). During the process something strange happened and GRUB lost its boot entries entirely and my limited ...
ylluminate's user avatar
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1 answer
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Ubuntu ZFS install hangs before reaching grub menu

After upgrading some packages and restarting, I can no longer reach the grub menu. My system hangs at the motherboard logo and provides no other output. I can boot to an Ubuntu Installer USB, and I ...
Ryan's user avatar
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Rescue mode with grub and chroot /mnt/sysimage after a VMWare conversion

EDIT: After some more snooping I saw this: https://virtualkryptonite.blogspot.com/2017/07/vmware-converter-p2v-partition-number.html (not sure what VG means in the post) but this is essentially what ...
Codejoy's user avatar
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3 answers
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Reducing Amazon EBS Root Volume Size on Amazon Linux 1

I have been trying to reduce the size of my Amazon Linux 1 AMI root volume using the procedure in this documentation (with some modifications made after failing to do so) and continuously run into ...
Rolo787's user avatar
  • 111
0 votes
1 answer
2k views

How to make grub for fully portable linux on usb thumbdrive without writing entry to systems EFI?

I've installed Debian Bullseye on a usb thumbdrive. When I plug the thumbdrive notebook bootet from it, because there was an entry in UEFI "debian". After removing it with sudo efibootmgr -b ...
Hannes's user avatar
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0 answers
203 views

Cannot reinstall grub on newly created boot partitiion

12. Reinstall grub on the newly boot partition: # grub-install --recheck /dev/xvdg # sed -i 's/sdg/xvdg/g' /boot/grub/device.map # grub-install /dev/xvdg Running first line gives: Probing devices to ...
Sayaman's user avatar
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0 answers
182 views

Converting sgdisk to sfdisk for old machine with MBR

I want to put ZFS on an old machine, however it apparently fails to boot with GPT. So I wanted to convert this script, mainly these 3 lines to sfdisk, which uses MBR. https://github.com/terem42/zfs-...
Ne00n's user avatar
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2 votes
2 answers
173 views

Frozen boot due to slow disk/controller

Im running ubuntu 20.04 on dell r740xd, One of the disk controller seem to present the disk(multipath disks used for openzfs pool) slow while the server is booting. If the server is boot from '...
sherpaurgen's user avatar
1 vote
1 answer
696 views

Issue with customizing kernel cmdline option in Ubuntu 20.04.3

Im trying to add rootdelay=60 option in grub cmdline options by editing file /etc/default/grub as GRUB_CMDLINE_LINUX_DEFAULT="rootdelay=300" and also ran update-grub update-initramfs -u ...
sherpaurgen's user avatar
0 votes
2 answers
1k views

Tell Linux/GRUB to start iPXE on next boot?

I've just discovered the wonder that is iPXE. Im running various versions of Debian on many different computers, and would like to remotely tell them to reboot into iPXE, and have iPXE automatically ...
Moritz von Schweinitz's user avatar
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0 answers
49 views

Split initrd into smaller files

I would like to know if it's possible to have a split initrd implementation. Our reason for doing this, is the fact that our Fedora based application uses a stripped version of Fedora underneath with ...
jbbletterman's user avatar
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1 answer
2k views

Issues with Ubuntu not booting on HPE Proliant ML30 Gen9

One of the server machines we use for database backup procedures is having issues and I ran out of ideas. At some point, it froze completely, and so it was forcefully rebooted. After that, the machine ...
Maximiliano Segovia's user avatar
0 votes
1 answer
1k views

ESXi installation PXE boot with GRUB on BIOS (not EFI)

all documents mention syslinux/pxelinux as a way to pxeboot ESXi installation, but I'd like to stay with GRUB 2. How to do that? I'm able, of course, to load GRUB 2 via network (i386-pc/core.0 for non-...
Jiri B's user avatar
  • 587
1 vote
1 answer
1k views

Upgrading to debian 11 (from debian 10) not add the kernel in /boot/ (Dedibox Server)

I have make upgrade on my server and reboot the server to use the last kernel, but after reboot, the server just use the old kernel (4.19.0-16-amd64). In /boot/, I just seen files for kernel 4.19.0-16-...
xandercagexxx's user avatar
0 votes
1 answer
3k views

Boot to GRUB by default (choose OS to boot every time) [closed]

I know what key to press to boot to GRUB. But, I don't want to press any key. I want to load the GRUB menu as my default and choose the OS each time I boot. In other words, I do not want to ...
JoeS's user avatar
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0 votes
0 answers
114 views

How to avoid password change when boot GRUB in debian 10 system?

Per this post,I know it's easy to change password when boot GRUB. When I read set debian grub password ,I run command as below: cat << EOF >> /boot/grub/menu.lst timeout 3 password hackme ...
kittygirl's user avatar
  • 975
2 votes
1 answer
5k views

Ubuntu 18.04 "grub-install: error: cannot find EFI directory"

I have this issue on multiple Ubuntu 18.04 (Bionic Beaver) servers. During a regular apt update && apt upgrade, I get this error: Setting up grub-efi-amd64-signed (1.167~18.04.1+2.04-1ubuntu44)...
the_nuts's user avatar
  • 460
0 votes
1 answer
39 views

How to replace system information in grub

I cloned my disk with zabbix server running on centos 8 and program used for cloning broke grub. Both disks cannot start, now on cloned disk I installed fresh system without removing old data ( I had ...
Spedit's user avatar
  • 1
0 votes
1 answer
5k views

HPE ProLiant gen 10 in legacy boot mode does not see hard drives in boot order section

I have HPE ProLiant gen 10 server with 8 drives. If I use legacy boot mode, but there is nothing in legacy boot order setting. And server tries to boot just from the ethernet. I have installed grub on ...
Mlok's user avatar
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1 vote
0 answers
337 views

Apache2 stopped working after upgrade to v2.4 ((38)Function not implemented: AH00141)

I was happily running apache2 and mysql on a Ubuntu 16.04 server with no problems, but yesterday I noticed that there were a bunch of updates available and I installed them using apt-get. One of the ...
simonelippolis's user avatar
0 votes
1 answer
5k views

Debian Stuck at Booting from Hard Disk after installation on KVM

I'm trying to install Debian on Qemu-KVM on RouterOS v5.25 I tried : debian-10.8.0-i386-netinst.iso debian-8.11.0-i386-kde-CD-1.iso debian-live-9.0.0-i386-gnome.iso on disk image created using : qemu-...
Amr SubZero's user avatar
1 vote
0 answers
934 views

Grub2-install: warning: Couldn't find physical volume in Centos 7

After replacing the disk with raid 1, I have this problem: grub2-install --recheck /dev/nvme0n1 Installing for i386-pc platform. grub2-install: warning: Couldn't find physical volume `(null)'. Some ...
Infoposter's user avatar
1 vote
1 answer
781 views

What is the difference between "Kernel messages" and "Messages from the init system and the system logger"

In this blog, it gives a Recommended serial kernel parameters, PCs with video card. console=tty0 console=ttyS0,9600n8 It says Kernel messages will appear on both the first virtual terminal and the ...
Phantom's user avatar
  • 13
0 votes
1 answer
3k views

Alpine setup on virtual machine UEFI does not boot

I am trying to setup Alpine linux on a VM (Proxmox) to replicate the layout of physical hardware (raspberry pi). The real layout is a raspberry pi 3, installed as "data" mode (based on wiki) ...
Dede's user avatar
  • 101
1 vote
0 answers
1k views

How to boot ZFS root filesystem after setting dnodesize = auto (making grub unable to read the disks)

I have a proxmox (v5.4 I think) installation on top of ZFS in a server with 6 disks. There are 2 pools: rpool in a mirror of two SSDs that has the proxmox root filesystem and some containers and zvols....
Héctor's user avatar
  • 141
0 votes
1 answer
438 views

Centos8: VM broken after moving from VMware ESXi to HyperV [closed]

I have moved Centos8 VM from ESXi to the HyperV 2019 core (hdd only) It seems the disks or partitions IDs are broken so it's not staring up properly using default/first Grub menu option. But it runs ...
Paul Paku's user avatar
  • 151

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