Ubuntu – Kernel Panic – not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

bootkernelupgrade

Upon trying to upgrade from 10.10 to 11.04 all seemed to go well until the restart. This error message is what comes up:

Kernel Panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)

How do we fix that?

Best Answer

You are missing the initramfs for that kernel. Choose another kernel from the GRUB menu under Advanced options for Ubuntu and run sudo update-initramfs -u -k version to generate the initrd for version (replace version with the kernel version string such as 4.15.0-36-generic) then sudo update-grub.

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