I'm using DigitalOcean's Droplet, which has a 20GB SSD hard disk.
I followed the instruction on this website to recompile the kernel on the Droplet. My system was Ubuntu 16.04 with kernel 4.4.0-generic, and I recompile the kernel 4.4.44 using the same config file in the current system. The compiling process went well but when I power off the Droplet and reboot, I got stuck at "Loading from hard disk".
Here is the screenshot of the console
I've tried different kernel version but all get the same result. Please help.