Ubuntu operating system is not started. Instead of it the gnu grub bash-like terminal appears:
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GNU GRUB version 2.02~beta2-9ubuntu1.12
Minimal BASH-like line editing is supported. For the first word, TAB lists possible command completions. Anywhere else TAB lists possible device or file completions.
grub> _
Steps applied which lead to problem (Before having applied these steps everything worked since months without problems!):
- Open Oracle VirtualBox Gui (v5.1.30).
- Select virtual machine.
- Go to tab "Snapshots".
- Delete step by step each existing snapshot.
- The deletion executed without failures (at least nothing poped up on the gui).
- Start virtual machine in the same Oracle VirtualBox GUI.
- Windows open and the grub terminal appears instead of loading the ubuntu operating system.
I'm able to assign an optical drive, e.g. a ubuntu live disc, and VirtualBox starts it normally without any problem. Please help!
I posted this problem also on https://ubuntuforums.org/showthread.php?t=2381782