Why Mint won't boot after booting Ubuntu from a flash drive?

Question

System administration

I have Mint installed, yesterday I booted from a flash drive from ubuntu, after rebooting, this is



How to fix it?

Answer 1

If you do not solve the problems with the tips above, then try to restore grub with boot-repair, to do this, boot from the USB flash drive again, open the terminal, add the ppa repository and install boot-repair:

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt update
sudo apt install -y boot-repair && boot-repair

After boot-repair, click Advanced, in the 3rd tab, put the bird on PURE, follow the instructions of boot-repair.
A little help on boot-repair

Answer 2

As an option, the boot disk has changed in the system ... judging by the screen .. the bootloader started and does not know where to get the files

Answer 3

Look in the BIOS for the order of devices to boot