I originally had Ubuntu 18.04 installed on my dell xps 13 (2017). A couple days ago, I replaced it with Ubuntu 20.04 due to constant error messages. Until today, I was able to use it without any trouble. However, I had to use Windows earlier today, and now when I was trying to boot Ubuntu back, I am unable to do so.
First error message
Unexpected return from initial read: Volume Corrupt buffersize 1000 Failed to load image EFIubuntugrubefi: Volume Corrupt start_image() returned Volume Corrupt
and then windows booted automatically.
In trying to resolve the issue,
Tried reinstalling Ubuntu 20.04 using LiveUSB, but got the error saying the system doesn’t have EFI System Partition