Questions tagged as ['boot']

Use this tag if you have trouble booting Ubuntu or you have questions about the bootup process.
Score: 0
Casper avatar
My system isn’t bootable, how can I do a kernel update?
fr flag

My system isn’t bootable because the hardware in my laptop is unsupported by the linux kernel I’m using. Is there a way I am able to boot into a live USB on my laptop, update the kernel on my laptop and boot back again?

Score: 0
oakpep avatar
Can't update GRUB
us flag

Yesterday I enlarged the system partition using gparted. Everything went fine, I rebooted and everything worked. This morning after turning on and selecting linux from bootlader - it does not turn on. I read that I should update GRUB, I use boot-repair with live-usb for this. Unfortunately the operation failed I'm getting these errors.

I also tried to repair and reinstall grub using a live USB accordi ...

Score: 0
fedorukben avatar
Having Trouble Booting Ubuntu Create List of Static Device Nodes for Current Kern
in flag

I am really struggling to boot into Ubuntu. I get the following error:

[FAILED] Failed to start Create list of static device nodes for the current kern

I am very new to Ubuntu, and really am struggling to figure out what is wrong. I have turned off Secure Boot. I’ve tried booting into Recovery Mode, but it doesn’t let me make a selection using the Arrow Keys (it shows up as some random text with ...

Score: 0
alfC avatar
Decide how to utilize a slow and fast hard drive to install Ubuntu
vn flag

Suppose I have to hard drives in my laptop, one is a (Disk A) classical spinning hard drive (or an old generation SSD) (<1GB/s) and the other one (Disk B) is a super fast NVMem SSD (3GB/s).

I. Suppose that they are not too big to hold everything. What of these options is better for Ubuntu?

  1. Install / (system files) in (Disk A) and /home (i.e. userfiles) in (Disk B)?
  2. Install / (system files) in ...
Score: 0
mlvdk avatar
Ubuntu Budgie 20.04 stuck on DELL logo at boot
in flag

When I boot my Dell Inspiron laptop, it only shows the DELL logo..

I tried booting from USB and running boot-repair, to no avail. Output of Boot Repair is here:

I am getting clueless, any help is appreciated.

Score: 0
Janos avatar
What is RC or BBS in last column of efibootmgr -v?
id flag

xubuntu 20.04 command efibootmgr -v has three columns after the BootOrder: line. The third column has either a boot loader entry or "RC" for CD or USB media. My HP laptop has W10 preinstalled with a recovery partition for W10, and of course I have Linux installed on another partition. The third column starts with "HD(foo)" for the W10 boot or Ubuntu boot, and it starts with "BBS HD(foo)" for the W10  ...

Score: 0
Emil Majer avatar
Ubuntu 20.04: Kernel and display manager not loading on system boot
ps flag

OS: Ubuntu 20.04.2 LTS x86_64

Kernel: 5.8.0-63-generic

Hi! I have problem with my Ubuntu. When I try to boot, it shows me an error you need to load the kernel first. I googled a lot about this issue and I try to fix it with my grub (v2.04).

When I set prefix like this: set prefix=(hd0,gpt2)/boot/grub terminal just freeze. No matter how long I wait prompt doesnt show again. I restart system (using ...

Score: 5
Casper avatar
amdgpu: Unsupported power profile mode 0
fr flag

I shutdown my computer today to try to boot it back up. I am getting the message: [6.043685] amdgpu 0000:04:00.0: Unsupported power profile mode 0 on RENOIR on a black screen. What is this and can I fix it?

Score: 0
serpine avatar
Removed libglib2.0-dev, cannot boot Ubuntu. Please help!
cn flag

I have made a BIG mistake. I have removed the package libglib2.0-dev on accident. I can no longer use my pc or boot into ubuntu 20.04. I am fairly new to more advanced computing. I can use terminal and basic things like that. I have a bootable usb stick with ubuntu 20.04 on it. Problem is, is I have tried everything I can think of to get the package back onto the ubuntu installation but without success. ...

Score: 0
Springnuts avatar
Error on boot of dual boot HP455 - start_image returned invalid parameter
de flag

Good morning all.

The laptop is an HPP455 G2 with a 1TB SSD partitioned to include a separate Data partition. Secure boot is disabled. I have installed a dual boot Windows 10 and Ubuntu 21.04 system and (with some difficulty) had it working well.

Expected behaviour: On switch on or restart the system boots into the Ubuntu dual boot screen, allowing user to select Ubuntu or Windows; if no selection ...

Score: 0
asdasasd avatar
“Unable to mount root fs on unknown block” for 20.04 while reboot or hibernate
cn flag

Last week, I had a boot loop because of %100 /var and freed some space and it was fixed.

/var/log has huge size because of snap

After fixing it (clearing /var), i hibernated the machine and today i tried to start it but it stayed at the hp logo.

Then i restarted via holding power.

It gave that error:

“Unable to mount root fs on unknown block”

So i went to advanced options and chose the oldest kernel ...

Score: 0
Haowen Liu avatar
/boot/efi running out of space
it flag

I'm on Ubuntu 20.04 and my /boot/efi partition is running out of space. It's weird because my EFI partition is 512M large and my /boot/efi is less than 100MB. Below are the details:


$ fdisk -l
Disk /dev/nvme0n1: 476.96 GiB, 512110190592 bytes, 1000215216 sectors
Disk model: Samsung SSD 960 PRO 512GB               
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes  ...
Score: 0
Goutham avatar
Persistent boot issue (Initramfs)
br flag

I am currently running Ubuntu 16.04 in my pc, and almost everytime the computer boots up, the control drops to the initramfs shell. I understand that this is because my ext4 drive is corrupt, and apply the fix that was mentioned in multiple help forums : run fsck -f /dev/sdaX

The computer boots up perfectly fine after this, but once again the issue is back to haunt me at the very next bootup. What c ...

Score: 0
Sridhar Thiagarajan avatar
Ubuntu 18.04 Emergency mode on boot
tr flag

My Ubuntu 18.04 doesn't boot into the OS, giving this image after Grub. I do not remember making any kernel updates or updating any disk partition recently. enter image description here

I've tried the following.

  1. I have a dual boot, and booting into Windows partition works fine - this rules out RAM issue.
  2. Able to boot into a live Ubuntu Disc successfully.
  3. Ran a memcheck using the live boot disk, and it says no errors found.
  4.  ...
Score: 0
Rentib avatar
Accidentally deleted Ubuntu bootloader
cn flag

I've been running dualboot of windows 10 and ubuntu 20.04 on my computer and recently decided to get rid of windows (i stopped playing LOL) and I accidentally deleted disk partition that was responsible for ubuntu bootloader (alongside partition for windows).
For now i recovered or rather reinstalled windows just to be able to launch computer.

I've also been looking for ways to recover ubuntu bootload ...

Score: 0
Alex Szücs avatar
How to figure out currently used kernel if uname does not tell the detailed version?
cn flag

There seems to be a lot of kernels installed:

root@v59530:/boot# dpkg -l | grep "linux-[a-z]*-"
ii  linux-aws-headers-4.15.0-1007                 4.15.0-1007.7                           all          Header files related to Linux kernel version 4.15.0
ii  linux-aws-headers-4.15.0-1032                 4.15.0-1032.34                          all          Header files related to Linux kernel versio ...
Score: 0
Filippo avatar
dev/sda2 full and ubuntu not booting
id flag

I am a Windows user with virtually no experience on Linux/ubuntu. However, I need to use a pc that runs on linux.

I just installed wine on the pc and when trying to restart the computer I begun to encounter problems in booting:

  1. I see the logo of the computer ('Dell') appearing,
  2. I get to the screen where I can choose the system I want to use (e.g. Ubuntu, advance, Windows)
  3. when I select ubuntu (o ...
Score: 0
H3XaDecimal avatar
Syslinux 6.04 (Error ldlinux.c32 Failed to load)
pn flag

Before I get into specifics, I have for specs

Ryzen 7 4800H (CPU)

16bg 3200mhz RAM (SODIMM)

Radeon RX 5600M (GPU)

Samsung 960 Evo 250GB

I have an MSI Alpha 17 A4DEK-011.

For some reason, whenever I boot into the USB drive, I get;

SYSLINUX 6.04 EDD 2014-10-06 Copyright (C) 1994-2014 H. Peter Anvin et al

Failed to load ldlinux.c32
Boot failed: please change disks and press a key to continue.

I am using ...

Score: 0
mert avatar
Ubuntu 18.04 boot fails into emergency mode [Closed Unsolved]
cn flag

Dear fellow ubuntu Users,

I have an Alienware laptop that has a dual boot with Windows 10 and Ubuntu 18.04. I use Ubuntu as my main operating system. I turned my pc off last night and when I try to turn it on this morning I faced a problem that takes me to Emergency mode.

When I turn pc on, Grub os selection menu appears. When I choose Ubuntu the booting screen takes way more time than usual and tur ...

Score: 0
Alessandra Boiti avatar
I ran fsck /dev/sda8 now Ubuntu doesn't work
cn flag

I have a laptop which has both linux Ubuntu and windows 10 partitions. I am not the one who installed it and I don't know the specifics. I consistently use both systems and never had a problem. The other day I turned on ubuntu and there was a similar message as here fsck error on boot: /dev/sda6: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY so after reading some comments I ran fsck /dev/sda8

It ran ok, t ...

Score: 2
ep0ch4lypse avatar
Why can I boot only Windows and not Ubuntu?
ca flag

Recently built a computer but I am unable to boot into Ubuntu. Hardware that might be relevant...

  • Asus ROG Strix B550F (Wifi)
  • G Skill 3600 c16
  • RTX 3070ti xc3
  • Samsung 980 1TB nvme m.2

I have tried the following

  1. Formatting the drive with GPT and MBR with an EFI System Partition, a space for the root (/) directory, and the rest for /home.
  2. Boot with CSM on and off.
  3. Boot with Fast Boot on and off.
  4.  ...
Score: 0
Safe way to boot test a clone of my internal drive?
in flag

I’m on Ubuntu 21.04 on my laptop (MSI Bravo 15 Ryzen 7 4800H 15.6" 16GB A4DDR-212IN with 2 internal nvme drive slots).

I’m regularly using Clonezilla to clone my main internal drive to an external USB connected nvme drive. I want to test boot from this external drive to make sure the clone is working good but somewhere I read to never plug in and try to boot from an external clone drive cuz t ...

Score: 0
Akos avatar
How can I rescue my Ubuntu VM, if I can't find the */boot/grub directory anywhere?
us flag

Something happened to my Ubuntu (v20.04 I believe) VM that I was working on, and it throws me into "grub rescue> " mode, doesn't even let me boot otherwise.

I've done some research on the internet, but unfortunately it hasn't been a fruitful endeavour, since the only solution I've come across doesn't work for me. Here's what I found:

1. grub rescue> ls (hd0) (hd0,msdos5) (hd0,msdos1)

I found the EXT ...

Score: 0
Potato_Waffles avatar
Laptop not seeing UEFI bootloader for Ubuntu, but Desktop does. How can I solve that?
th flag

Dear wounderful comunity!

I recently decided to try out this new UEFI boot thingy, as I want to encrypt my drive and only found tutorials for UEFI. My laptop does not by default support it (an old Acer Aspire 5750g), but after some digging I found a custom BIOS with UEFI and some other useful goodies!

I have a dual boot instalation (Ubuntu for coding and Windows for gaming and 3D modeling) and works ...

Score: 0
abhishek avatar
Boot device not found error on startup
jp flag

I am a rookie at Linux and started using Ubuntu just yesterday. I mistakenly set the swap partition as bootable on startup and now when I start the computer, it shows a Boot Device not found error. I use a dual booted pc with Windows 10 and Ubuntu 20.04.

How do I fix this issue?Please help!

Score: 0
Freezing on boot
es flag

So, everything was fine, PC had been running without issues for some time, then all of a sudden it started freezing on shut down, i added the acpi=force as recommended on some threads and this fixed the issue. Following this my PC has now started on occasion freezing on boot, and i cannot seem to work out what is causing this issue or if it is in anyway related to the other issue. The Operating system i ...

Score: 0
linofex avatar
Use grub config of second Ubuntu partition
ar flag

I have two Ubuntu partitions, Ubuntu 16.04 and 18.04. I use for the 99% of time the partition with U18.04, but I see that the grub config are taken from the partition with 16.04.Now, I have a problem with a kernel version with U18.04 and I am not able to boot with the older version because the grub manager in U16.04 does not recognize U18.04 kernels (while if a I do sudo update-grub from 18.04 everyt ...

Score: 0
Jacob Anderson avatar
Ubuntu 18.04; Won't Boot After Shutdown
br flag

Seeing some odd behavior after shutting down my PC running Ubuntu 18.04. I did a hard push on the power button after the computer crashed while trying to kill an intense process that became a Zombie (I think this is unrelated).

After turning my computer on again I got to the splash page with 5 dots.

enter image description here

I restarted and found I am now automatically given the grub menu. If I do not select Advanced Option ...

Score: 0
Ivan Vining avatar
Not booting due to not starting ZSYS
es flag

I am using Ubuntu 21.04 on a dual boot Lenovo

I can get to the GRUB, and when I go to "Advanced Options", I have tried to boot from the both recovery boots and get a:

FAILED to start ZSYS daemon service.

I can go to the root command-line

Also, when I do a memory test, it gets to 58% and stops, also freezing that screen and computer so I have to do a cold boot.

The Windows boot works fine.

I do not hav ...

Score: 0
Detect cause for random boot and shutdown issues
pk flag

I have some random issues related to booting and shutting down Ubuntu 18.04.

  • Shut down freezes

  • Shut down takes up to 30 minutes

  • Booting works but freezes after password entering Booting freezes at the pure purple screen

  • Booting works but drive is in read only mode

Maybe related: I had an error a few days ago where I needed to set fsck manually on boot that I fixed with (initramfs) fsck /dev/s ...