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Currently I am dual-booting Windows along side Ubuntu, but whenever I try to boot Ubuntu it displays the message “Unable to mount root fs on unknown block”. So, I checked the forms, and everyone said to boot to an older version by going through “advanced booting options”, but when I try that I get this message “error: you need to load the kernel first.” How do I fix these issues without the ability to boot into my OS?

Ts-878
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1 Answers1

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Hence your problem is less clarified I will continue on my assumptions.You are missing the initramfs for your usual kernel. If you cannot get to advanced options also, try this.

  1. In the GRUB menu select and go into 'Advanced Options'(or something like that).
  2. Next select another kernel other than the usual kernel and press e to edit.

Then check whether these things are available, if not enter these there.


insmod linux
linux /vmlinuz root=/dev/sda2
initrd /initrd.img
boot

and then press F10.

You refer to these links also.

https://unix.stackexchange.com/questions/418401/grub-error-you-need-to-load-kernel-first

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

Sakith B.
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