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I have a really big problem. It is the third time that I already installed the Ubuntu 17.04 on my laptop (Toshiba satellite Intel® Core™ i5-5200U CPU @ 2.20GHz × 4). Each time, I made a complete installation erasing all the past files and OS that I have. After finished I made a sudo apt-get update and upgrade. The Ubuntu was normal working during 2-3 days, but after that, when I tried to boot, I have the following error:
BusyBox v1.22.1 (ubuntu 1:1.22.0-ubuntu2) built-in shell (ash)
help for a list of built-in commands
Please, I really need your help Thanks a lot.