I have a Ubuntu and windows dual boot, and it was working well for a year. Today, while using Ubuntu, I kept a live usb drive with windows recovery (I was not aware of this). I couldn’t access the files In the usb on Ubuntu, So I opened a terminal and decided to switch to windows and used the command (with the usb attached to pc)
sudo reboot now
I am able to access windows by using the command “exit” and then choosing windows but getting the above screen when I choose Ubuntu .
There were similar questions on this but all of them occurred during the process of dual booting. I have few important files in my Ubuntu which I would like to restore. The live usb which had windows recovery was formatted. Would be grateful for any help.