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Ubuntu 22.04 Reset System Bootloop

I ran into same problem on my HP PC. I was able to solved it with the following steps. Enter BIOS option In the Advanced tab, click Boot options Goto Boot Mode section to select UEFI Native (without ...
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1 vote

Cannot install or boot Ubuntu on an external SSD

Usually, recent versions of Ubuntu support recent harware much better than older versions of Ubuntu. If you need Ubuntu 20.04 to run a specific version of ROS, install it in a virtual machine running ...
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Accepted

Can't boot into Ubuntu; Can't Install Grub

I found the answer! You have to boot into a Live USB, and install it. It will create another Ubuntu Install, and then there will be "Operating systems detected: Ubuntu 22.04.1 LTS and Ubuntu 22....
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Ubuntu and Windows Boot Manager boot options in BIOS

So youve probably had windows before Ubuntu and didnt had Ubuntu right away. If you installed Ubuntu (No Dual Boot) you should only have Ubuntu. If you have a Dual Boot you will have Windows Boot ...
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How can I move a Ubuntu installation to a new drive if it has other partitions?

I just did this. I booted up using the rescue version of Ubuntu 22.04. (In this case, my rescue version was the Desktop install version). You really don't need a rescue version. But on your boot USB ...
3 votes

Dual boot Ubuntu 22.04 in Legacy BIOS mode (MBR partition)

Dual boot Ubuntu 22.04 in Legacy BIOS mode Unplug your Windows drive. Install Ubuntu on the other drive in the same BIOS/UEFI mode Windows uses, (ie Legacy). Plug in Windows drive. Set Ubuntu drive ...
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1 vote

Can I replace a laptop's hard drive with an Ubuntu hard drive?

Is it possible? Most things are possible. However, as someone who's worked with computers since the 1980's I would say it's NOT advisable. If you get in the habit of simply moving the old drive with ...
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Can not boot Ubuntu 22.04, dual boot installation, no GRUB loader

I set up Ubuntu 22.04 over 20.04 with a dual boot system with Windows 10. When I restarted system, grub rescue prompt appeared. After trying some suggestions without any success, I tried the following:...
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Boot fails after upgrading from 20.04 to 22.04 on dmraid device, no partitons

i upgraded my System on Intel Software Raid yesterday from XUbuntu 20.04 to XUbuntu 22.04 and it came out with the same issue wich you discoverd. Personally i think it could be a bug in/with dmraid. I ...
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Installation of Ubuntu 22.10 on dual boot

The problem is your bios isn’t set to read the usb as a higher priority than grub on the hard drive / ssd. Grub won’t offer you boot from usb - it just lets you select from any of the installed OS’s. ...
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How to change grub timeout in Ubuntu 20.04

this worked for me on a fresh Ubuntu 22.04.1LTS server installed with ubuntu-desktop-minimal added afterwards. This is not a dual boot system In the file /etc/default/grub I added: ...
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sudo: grub2-mkconfig: command not found

If the answer from Bernard doesn't work then you may not have some packages installed. check if the following packages are installed otherwise install them: sudo apt install grub2-efi grub2-efi-...
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2 votes

How can I run Unbuntu on raspberry-pi 3 or 4 using only a single core?

Updated, based on modified question: As far as I am aware, Uboot does not support, in contrast to GRUB, a boot parameter to set the numbers of CPUs used, see Uboot Environment and Uboot env command. ...
-1 votes

Can not boot Ubuntu 22.04, dual boot installation, no GRUB loader

Install Ubuntu 20.04, then upgrade to 22.04. Extra pain, but worked for me.
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1 vote

grub-efi-amd64-signed dependency issue in Ubuntu 22.04LTS

the methods from ruffCode and jrggv do not work for me. The following code solve my problem sudo rm /var/lib/dpkg/info/grub* sudo dpkg --configure -a
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Why there is no password to root under Recovery Mode?

Considering this is an old topic, being able to go into Recovery Mode & rooting saved my Desktop multiple times from crashes, corrupted driver installs (gpu) or any other problems where my desktop ...
1 vote

Can I replace a laptop's hard drive with an Ubuntu hard drive?

Usually Ubuntu is quite robust and one can just swap drives and it will still work. You may have to adjust the boot order in EFI and make sure that the new computer boots in the same mode (BIOS vs. ...
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1 vote

boot-repair Fails due to bad substitution in gui-actions.sh

I had the same issue and was able to fix it by changing the mentioned line (in /usr/share/boot-sav/gui-actions.sh line 234) to the following: PARTB=${LISTOFPARTITIONS[$PARTTOUNFLAG]} #sdXY The "]...
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Ubuntu runs normally if I enter the second option in Grub menu. Doesn't work with the default option

Please, remove 5.19 kernel with the commands sudo apt remove linux-image-5.19.0-28-generic linux-headers-5.19.0-28-generic linux-modules-5.19.0-28-generic Please, reboot the computer. After that, ...
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GRUB Timeout Set to 0, Can't Access GRUB Menu Anymore

See my answer here for how to set things up so that the GRUB boot menu is interruptible when timeout=0.
0 votes
Accepted

Unable to update UEFI dbx

I had exactly the same problem described here when updating UEFI DBX to v217. My configuration is ThinkPad X1 Carbon gen 10 running Ubuntu 22.10 (Kernel 6.1.6-stable). Since /media/root/PQSERVICE does ...
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-1 votes

grub2, using variables to pass to linux entry

I refer you to GNU Grub documentation. See the echo command. It details how to include variables, new line, carriage return, tabs etc. To echo your $TEST variable try this: ECHO ${TEST} In short, put ...
0 votes

Unable to Dualboot (Ubuntu / Windows) with RAID1 Array, NVME M2 SDD & GRUB

Unless you configured your RAID members in UEFI, you're probably using software RAID (as in, a RAID configured in Linux kernel, not in controller firmware). In that case, I don't think you need to ...
-1 votes

Permanently solve “GRUB was previously installed to a disk that is no longer present”

I got the same error message on my system running Ubuntu 20.04.1. In my case /boot/efi is on its own partition. The following procedure solved the problem: Before apt-get update unmount /boot/efi. ...
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Recreating Partitions

I ended up using the KDE partition manager to create efi, root and home partitions. The manager was not very intuitive for me but it worked out. I was then able to install Lubuntu. The preinstall ...
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Recreating Partitions

You can repartition the hard drive using the KDE Partition Manager application which is built-in on the live USB as any format including the default ext4 format. That's all you need to do, and the ...
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0 votes

GRUB is extremely slow - 1 second per key input

Disabling secure boot in the BIOS seems to fix this problem for me. I came to this conclusion after seeing that running videoinfo in the grub cli gave me secure boot related errors.
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How can I get grub2 to boot a different option only on the next boot?

awk -F\' '/^menuentry / {print $2}' /boot/grub/grub.cfg|cat -n|awk '{print $1-1,$1="",$0}' That'll give you the numbers and names of the available grub boot menu options.
2 votes

Unable to boot GRUB while trying to set up dual boot configuration

I managed to fix it! Grub2win didn't work at first. I tried part 2 of this guide here: https://www.minitool.com/data-recovery/boot-configuration-data-missing.html - Basically, I put a windows 11 ...
0 votes

Dualboot Ubuntu/Windows: "Error: file '/EFI/Microsoft/Boot/bootmgfw.efi' not found"

For others, who have same problem, but file is really missing. On my PC installed windows and Ubuntu on the same physical disk, after trouble with power off, I got this problem. My solution I boot ...
1 vote

Link to restart from Windows to Ubuntu

I use Arch instead of Ubuntu but the GRUB configuration should be the same. What I don't really like about the previous anwsers is that they: either involve editing the grub.cfg file directly, which ...
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