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Grub errors: No such device, you need to load kernel first [Dual-Boot[

in flag

I have Windows 10 installed on my main drive (sda) and decidef to dual boot with Ubuntu 20.04. on a second removable drive (sdb, Connected via SATA cable) I have legacy BIOS. Two weeks ago I made a post regarding my Dual Boot problems, it turned out I messed up the installation, so I got rid of all Ubuntu files on both drives and got Windows to work again.

Now I installed Ubuntu again, this time without errors whatsoever, but got a grub rescue prompt. I ended up fixing this issue by creating a boot partition on sdb from the live dvd. I was then able to enter grub and boot Windows from there, but when I select Ubuntu, I get:

error: no such device:[UUID]
error: hd1 cannot get C/H/S values.
error: you need to load the kernel first.

I have tried:

linux /vmlinuz root=dev/sdb1 ro

But I get:

error: unknown filesystem

What might cause this issue and how can I fix it?

oldfred avatar
cn flag
Please copy & paste the pastebin link to the Boot-info summary report ( do not post report), do not run the auto fix till reviewed.Lets see details, use ppa version with your USB installer (2nd option) or any working install, not Boot-Repair ISO (unless 21.10) https://help.ubuntu.com/community/Boot-Repair & https://sourceforge.net/p/boot-repair/home/Home/
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