Failed to start Load Kernel Modules_ (Ubuntu)
Failed to start Load Kernel Modules
Seeing Failed to start Load Kernel Modules on Ubuntu means the OS detected "Failed to start Load Kernel Modules". Before reinstalling anything, work through the steps below — the fix is often simpler than it looks.
What Actually Happened
System boot halted: a systemd unit failed to load a kernel module listed in /etc/modules, often after a kernel version change.
Symptoms
Linux boot halted with message: 'Failed to start Load Kernel Modules'
Common Causes
- Boot condition: a systemd unit failed to load a kernel module listed in /etc/modules, often after a kernel version change
How to Fix It
-
01
Boot from a Live USB media
-
02
Chroot into installation and run:
sudo update-grub -
03
Reinstall bootloader:
sudo grub-install /dev/sda
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Root Cause Breakdown
Bootloader or initramfs failed to map root device.
Should You Worry?
High priority, but files on disk remain safe.
Power-User Tip
Run sudo os-prober from Live USB to auto-detect OS partitions.
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