Questions tagged [boot]
Bootloader issues: what happens before the operating system itself starts.
3,644 questions
1vote
1answer
62views
Linux doesn't boot without video
I've a minipc Qotom Q1900G2-P with AlmaLinux 9.5. Qotom with American Megatrends bios, build 06.01.2015. Bios reset to factory, default setup. Without video cable, HDMI or VGA, it doesn't start...from ...
- 109
0votes
1answer
56views
I want a Boot animation like Ubuntu's and can't seem to be able to get it
I've been using Debian 12 for the last couple of years and decided to give Ubuntu 24.04 a chance, first thing I noticed is that the boot animation starts at the very beginning of the boot up sequence ...
MartínVargas
2votes
1answer
61views
Booting into popos results in the laptop rebooting into BIOS
After i have formatted and de-allocated a space for my pop os installation, i used rufus to flash the pop os's iso images into my drive and installed pop os on my laptop(asus with nvidia gpu). i then ...
-2votes
1answer
27views
Edit or install Ubuntu GRUB Sequence
My issue is more nuanced than the title suggests. I have a pc I am using as a server. I first installed a headless ubuntu because that's all I needed to run my services. I then installed a standard ...
0votes
0answers
32views
Blocking disk space for booting Ubuntu
I sometimes have the problem, that the hard drive disk is completely used when I use Ubuntu. When this happens, Ubuntu does not boot anymore until I have freed some space (via the terminal in the safe ...
0votes
0answers
22views
Use device mapper snapshots to create multiple versions of the same machine and choose at boot
I already use LVM to create snapshots of volumes, and I recently discovered that device mapper can manage snapshots "manually" without LVM. It would be useful to be able to create a snapshot ...
- 111
0votes
1answer
41views
Wrong GRUB root and prefix when loaded by custom UEFI application
I am currently coding an UEFI application that I am setting up on a USB key. It's goal is to find my main disk and manually load GRUB: a kind of bootloader for the bootloader. When I run it on my ...
- 121
0votes
0answers
27views
How can I globally delay non-critical systemd services on Ubuntu without modifying each unit individually?
I'm trying to improve my boot performance on an Ubuntu system by ensuring that only essential services—like those required for the GNOME UI—start immediately at boot. All other (non-critical) services ...
- 121
0votes
1answer
53views
What does "fwupd-efi version 1.6 Reset System" mean?
I just freshly installed Fedora 41 and the Software Updater suggested me to update my Thinkpad's firmware (something with UEFI Secure Boot I think). I clicked download and install and restart, the ...
- 119
0votes
0answers
21views
After put rd.break at end of the line system enter into maintenance mode asking for root password [duplicate]
Two days before on 18th March 2025 I had a certification exam to RHEL9 (RHCSA 9 - EX200V9K)and I had to recover the root password. I did this procedure hundred times succesfully with the same version ...
1vote
1answer
56views
After crash, Ubuntu boots into boot menu
After a crash (browser froze), I tried a hard reset, and on boot, this screen appeared, which I cannot bypass just by pressing Enter. This has happened before, and after several attempts and pressing ...
- 3,897
2votes
1answer
44views
Unable to unlock multiple LUKS partitions with one passphrase
I'm using Ubuntu with a LVM over LUKS disk scheme. I have two SSDs, hence two LVM PVs are needed. They are both encrypted with LUKS, and have the same passphrase. Now on boot-up, I need to type the ...
0votes
0answers
27views
How can I prevent during-boot updates on Debian12?
Current system Debian12. Sometimes (maybe 1 time in 100) during a boot, while the boot screen is still showing, downloads are occurring. How can I prevent that? One way is to always boot with LAN ...
- 746
0votes
0answers
27views
U-Boot Not Booting from Flash Memory on Arty A7 100T FPGA
I'm working on booting U-Boot from the SPI flash memory of an Arty A7 100T FPGA and encountering an issue where U-Boot does not execute after power-on Issue U-Boot does not produce any output on the ...
0votes
2answers
43views
how do I setup VULKAN_SDK environment variables in Debian/Raspberry Pi Os
First things first; I am new to Linux and I don't understand a lot of things. I'm working on a Raspberry Pi OS which is Debian based. There is a file with environment variables: "setup-env.sh&...
