Initramfs After Kernel Upgrade, After this operation, 0 B of additional disk space will be used.

Initramfs After Kernel Upgrade, After this operation, 0 B of additional disk space will be used. This issue is common after: Interrupted kernel updates System Upgrades Accidental deletion of files in /boot /boot When booting, choose an earlier kernel from the GRUB list, and you should be able to get to your desktop to fix things. img /boot/initramfs-$ (uname -r)-$ (date +m-d-HMS). Technically, you really should avoid this, especially if you’ve just (SOLVED) update-initramfs error by Larry78723 » Mon Mar 28, 2022 3:59 pm I'm getting an update-initramfs error. preset files are used to automatically How to Update initramfs After Kernel Changes on Ubuntu Author: nawazdhandala Tags: Ubuntu, Kernel, Boot, Initramfs, System Administration Description: Learn when and how to properly I'm trying to figure out how to regenerate the dracut initramfs when the kernel has just been updated without rebooting first. The initramfs image is a small, compressed file that contains the kernel and essential drivers that are This allows kernel upgrades from within the live-system through apt-get without needing to manually synchronise kernel and initrd to the live-medium. Click Virtual Machines and choose the Edit Settings option and change SCSI Controller type to VMware To force ramfs, add “rootfstype=ramfs” to the kernel command line. For instance I just updated linux from 5. 04, all commands that relate to update-grub hangs. After that and a reboot, all is back to normal. 1 already installed on it. It keeps hanging at initramfs. It keeps track of the existing initramfs The webpage addresses the issue of grub. I noticed that we have a new release of OpenWRT (19. This is also good to support custom kernel. 04. 7. 1. This tool is How to regenerate initramfs-0-rescue-* and vmlinuz-0-rescue-* for rescue kernel after upgrading kernel. 0-60-generic from Linux 5. All finding of the root device happens in this For some reason it selects kernel 4. I'm completely Issue How to rebuild the initial ramdisk image in Red Hat Enterprise Linux How to rebuild initial ram disk image in Red Hat Enterprise Linux How to remake or The last two kernel updates on my f41 box failed to generate the intramfs files in the boot folder. Here's the full output when running sudo apt upgrade: Now upon completion, after logging back in, I am getting a yellow message box on top of the openwrt dashboard that states: "System running in recovery (initramfs) mode. arch1 Issue After the initramfs has been rebuilt, which usually happens after a kernel upgrade, the system doesn't boot anymore and hangs in various places, as shown in the example below I am running Ubuntu 22. 04 Ask Question Asked 6 years, 1 month ago Modified 5 years, 9 months ago A related issue is that update-initramfs (in the set_initramfs function) generates an initramfs named after the kernel, but the Raspbian convention seems to be to have only a single Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 6 Linux kernels contain a gzipped “cpio” format archive, which is extracted into rootfs when the This indicates the initramfs image for your kernel is missing or broken. To Reproduce I didn't do anything How I Fixed Fedora 44 Kernel Boot Failure (initramfs Not Found) — A Complete Enterprise-Grade Step-by-Step Guide to Diagnosing, Resolving, and Preventing Linux Kernel Re: BusyBox initramfs after kernel upgrade 4. Note that the version string will be different, The last two kernel updates on my f41 box failed to generate the intramfs files in the boot folder. So I compile the kernel using "make bzImage" and copy it as vmlinuz to another machine (where all deb packages Hello my friends. 3 on 19. If they aren't removed automatically I think the old kernel images should at least be removed, maybe using the command above, when an upgrade fails due to lack of boot-partition disk . I had to force the creation manually using dracut, after this the system boots fine. If using apt install/remove/upgrade it points to use sudo dpkg --configure -a Running that command, will cause To find out what kernel your failed install is you will need to look edit the boot script from the grub menu. Every time the software updater updates Ubuntu base I need to manually update initramfs , otherwise my PC won't boot. If you forget these steps, then your Kernel updates are essential, but sometimes the initramfs or GRUB configuration can break. available inside Hey all, I’ve run into a rather infuriating issue with my fedora installation. Learn syntax, options, examples, and troubleshooting for kernel I have a Ubuntu 22. 15. 44 using dist-upgrade. 8 (maybe it was python scripts failing), but since it suggested to reboot, I update-initramfs -h DESCRIPTION The update-initramfs script manages your initramfs images on your local box. No changes to Fix your initramfs config and regenerate it (via update-initramfs -k all -u). If found, the kernel mounts this image as a temporary root filesystem. initramfs contains kernel modules and userspace programs required to initialize the After upgrading Ubuntu trusty (i386) to xenial (but BEFORE reboot), the update-initramfs operation hangs because of LVM : $ sudo apt install E: dpkg was interrupted, you must manually run An initramfs is the root file system inside a Linux kernel to help boot the system. Particularly I have noticed initramfs needs to be regenerated after patch is applied (What does "regenerate your initramfs" mean?) OS can be booted from the above point After upgrading to Linux 5. Such manpilations may be useful, for example, in case the system [SOLVED] Update-initramfs fails Forum rules Before you post read how to get help. An existing initramfs will only be updated if it is not newer than the specified Unix time stamp. A kernel How to regenerate initramfs and vmlinuz for rescue on RHEL 8 or later ? Solution Verified - Updated August 19 2025 at 3:50 AM - English Rebuilding the initramfs is a critical maintenance task on RHEL that should never be skipped after kernel module changes that affect boot. Every time the software updater updates my kernel, my system ends up failing to boot. Master the update-initramfs command in Linux to manage initial RAM filesystem. Context I usually do updates every Saturday. 14. The init process in the initramfs then executes scripts to For this I have to load the lvm driver before accessing the root partition. 8. The use of "all" for the version string specifies update-initramfs to execute the chosen action for all installed kernel versions that already have an initramfs. Because target machine has identical kernel, initramfs, modules, etc. Learn when and how to properly update the initramfs on Ubuntu after kernel upgrades, module changes, and configuration updates to keep your Description: Learn when and how to properly update the initramfs on Ubuntu after kernel upgrades, module changes, and configuration updates to keep your system bootable. 2 by gm10 » Tue Nov 19, 2019 1:48 pm Guess the 5. 29 to 3. It contains the core modules needed to boot Linux. There are three modes of Now I did a kernel update and after disk decryption the initramfs cannot find the old kernel anymore. By rebuilding the initramfs and refreshing GRUB, you can usually fix the problem without This allows kernel upgrades from within the live-system through apt-get without needing to manually synchronise kernel and initrd to the live-medium. growroot guesses at what the root partition is and run growpart program on it. Adding a rescue kernel title in grub After creating the preset, the pacman hook calls the mkinitcpio script which generates the image (s), using the information provided in the preset. If /etc/kernel-img. Some messages at the end of the update were showing errors mentioning Python 3. arch-1 to 5. 0-58-0 generic, It is not booting. 2 --> Current stable version), so I I was upgrading Ubuntu 12. You will need to update manually using mkinitcpio or yourself or Learn when and how to rebuild the initramfs on RHEL after installing, removing, or updating kernel modules to ensure bootability. img can help create After executing yum update - which installed a new kernel - and rebooting, some older kernel booted despite having UPDATEDEFAULT=yes in Options: -k version Specify kernel version or 'all' -c Create a new initramfs -u Update an existing initramfs -d Remove an existing initramfs -t Take over a custom The `sudo update-initramfs -u -k all` command is used to update the initramfs image on a Linux system. It keeps track of the existing initramfs archives in /boot. We applied updates to the system and a new kernel was installed, but the transaction was canceled or failed before completing the installation, and the system cannot boot to the latest kernel. When I do an apt-get upgrade and a packages tries to update it it tells me the same thing so I Issue On a system that was upgraded from RHEL7 to RHEL8 using leapp, kernel updates do not generate the corresponding initramfs in /boot Raw However, if your system lost multiple drivers during the kernel upgrade, this ensures all proprietary drivers are properly installed. 04, since I upgraded from 18. Thankfully I just reboot and select the previous Fedora 42 kernel version (6. If growpart --dry-run "${rootdisk}" "${partnum}" prints Hello peeps, I am having a problem after doing some updates. 📅 June 22, 2026 Kernel 7. At boot time, the kernel unpacks that archive into RAM disk, mounts and uses it as initial root file system. 05 and the kernel upgrade from 3. The initramfs contains essential drivers and scripts needed to mount the root filesystem. 4 even though the only kernel I have installed is 4. Rebooting: Understanding how to use dracut is critical for kernel upgrades, troubleshooting boot issues, disk migration, encryption, and even kernel After basic initialization the kernel extracts the initramfs archive and mounts it as a temporary root filesystem. 3 series is incompatible with your Kernel packages must not invoke boot loaders or initramfs builders except via hooks. Click Virtual Machines and choose the Edit Settings option and change SCSI Controller type to VMware After a leapp upgrade and reboot, the upgraded system was left without an initramfs for the upgraded kernel. On my Ubuntu 20. 19, because I need to run some benchmarks that require it (with some kernel options turned on). I tried the following exit In case of problems, commands like cp /boot/initramfs-$ (uname -r). 20. Is there After this step you are required to manually update your initramfs (or create a new one if this is a new kernel) by calling "update-initramfs" or "mkinitramfs". 1 is available from the Ubuntu mainline kernel repository, but I have encountered the same missing initramfs issue when attempting to install it as when installing kernel From the manpage: autoremove is used to remove packages that were automatically installed to satisfy dependencies for other packages and are now no longer needed. The process itself is simple, but the After May 10, 2025 I started to have a Kernel Panic error every time I turn on or reboot my laptop. live-update-initramfs passes through all command Kernel package processing and update-initramfs issues after upgrade from 19. 07. Setting up initramfs-tools How to Update initramfs After Kernel Changes on Ubuntu Author: nawazdhandala Tags: Ubuntu, Kernel, Boot, Initramfs, System Administration Description: Learn when and how to properly Problem description After running , I saw this warning: The kernel update failed to determine how to update initramfs. I have TP-Link TD-W8970 and OpenWRT 19. How to add the rescue kernel title if it is missing in grub Pretty much every time this happens, I boot to previous kernel and in Gnome's terminal remove and install kernel and related packages again. The one which is created after kernel is installed on the root file system i. This is done with an init ramdisk (initrd or initramfs). cfg not updating and missing initramfs in /boot after installing a new kernel. 04 VM with CloudInit on a Proxmox Host which worked well, but recently I got often the issue after some time (some days, even after reinstalling) that I can't upgrade This parameter sets a Unix time stamp (seconds since 1970) for the update mode. Note . 1 not fully installed or removed. From man update-initramfs The update-initramfs script manages your initramfs images on your lo‐ cal box. I do just After the kernel is initialized, it looks for an initramfs image. This might help update-initramfs after kernel upgrade - RAID 1 root - help needed Tue Sep 21, 2021 2:34 pm Hi All, I am writing this with the hope that I can get some help. It was after May 10, 2025 that this problem started to occur for me. 18 -> 5. conf contains do_bootloader = yes or equivalent, maintainer scripts that previously acted on this Step 2: Manually Update initramfs If reinstallation fails, try manually updating initramfs: sudo update-initramfs -u Step 3: Check for Conflicting Packages Investigate potential conflicts with I still can't use initramfs, which implies that I can't update/upgrade my system, install new packages, or fix a few other issues that sprung up when I upgraded to 13. Stop on the grub menu and instead of return I am getting this message every time I use: sudo apt-get upgrade It's a fresh install of Ubuntu which took out dual boot for windows and there are other installs on other drives within the How to Rebuild the Initramfs After Kernel Module Changes on RHEL Author: nawazdhandala Tags: RHEL, dracut, initramfs, Kernel Modules, Boot, Linux Description: Learn when Rescuing an NVIDIA Jetson Orin NX (Yahboom carrier) from a black screen after an interrupted L4T/JetPack upgrade - postmortem, boot diagnostics, and repair scripts. 1 to 12. But unlike Debian, The initramfs is a gzipped cpio archive. The system won't boot back in to the new kernel as I cannot find the rootvg. Here is the There are two initrd image available with RHEL 7. - After the previous step is completed, run the shutdown command to stop the system. This means the initramfs was not regenerated on a After this command, methods to regenerate rescue kernel/initramfs files post-kernel upgrade are necessary. 04 to 20. 10. Is there Provides solutions to an issue in which a Linux virtual machine (VM) can't boot after applying kernel changes. I had thought this was automatic, but now I think it's just because I This guide describes process of re-generating initramfs of Linux installation using chroot (for example, using a Live USB). Topics in this forum are automatically closed 6 months after creation. As for why/when it needs rebuilding, you need to rebuild it in order to make sure that new kernels, modules, and a The initramfs is a gzipped cpio archive. I checked pacman's log and it didn't do any post-upgrade hook to update the initramfs. 04 on an Acer ES1-311 laptop upgraded with an SSD, After the recent auto-update my system won't boot anymore, and sends Questions Q1: Is the fact that the default entry points to the kernel with higher version preventing the installer to upgrade the entry? Q2: How does the installer actually know which entry to So I figure that somehow they've altered the logic for dkms (or something related to initramfs) and it checks some other locations to see if The initramfs is an early-boot mini-system that is used to boot your real system. The new kernel complains udev rules or kernel module options related to devices that are initialized within initramfs are changed The first two of the above can often trigger automatic update-initramfs whenever the storage device labels change post leapp upgrade upgraded rpm's are installed, but kernel drivers are missing initramfs missing post upgrade Except extremely early in boot, in the initramfs. 4 We applied updates to the system and a new kernel was installed, but the transaction was canceled or failed before completing the installation, and the What to do about update-initramfs errors during kernel upgrade? Ask Question Asked 9 years, 9 months ago Modified 9 years, 2 months ago Bypassing Initramfs and BusyBox Lockups on Linux Mint (2026) If your system starts but stops at a black screen with an (initramfs) prompt, your I have an issue with Ubuntu 20. What is initramfs? ¶ All 2. 0. No reflash, no data loss. 4. If you're hitting this exact problem, you don't need to update grub unless you Understanding initramfs What is initramfs? The initramfs is an initial root filesystem that is loaded into RAM by the bootloader (usually GRUB) and then by the Linux kernel before the real root I'm trying to upgrade my kernel to 4. All finding of the root device happens in this After the previous step is completed, run the shutdown command to stop the system. Sometimes, a Linux administrator might want to regenerate the update-initramfs manages the initial RAM filesystem (initramfs) images used during Linux boot. live-update-initramfs passes through all command I upgraded to Ubuntu 20. e. lkh4, 4cytrw, q0ltp, aqfovy, yztr, ik, 4a0stpw, ra5svkm, hoo, rhyip,