I had Debian Stretch installed, but the memory was low. With the help of the AOMEI program, I expanded the volume. What needs to be installed to start Debian?

Question

Debian

Starting the computer as usual, I got a blue screen and there I chose which OS to start, but after expanding the volume, clicking on Debian shows that there is no such disk partition. And all this is already on a black screen .
I fixed it: grub rescue - Guide for beginners by techzone++ He has the same shit, only he used gparted.

Answer 1

Try to go from a bootable flash drive and restore the grub bootloader, how to do it - you can easily google it.
Perform operations with volumes better in gparted, this program works without jambs.