When starting a virtual machine with ubuntu 16, the system boots for 5-7 minutes, writes about damaged blocks. And eventually it initamfs into initamfs with an error

 Gaveup waiting for root device. Common problems: -Boot atfs (cat /proc/cmdline) - Check rootdelay -Check root -Missing modules (cat /proc/modules; ls /dev) ALERT /dev/sda does not exist dr stoping to a shell! 

tried to change root in the GRUB settings on the UUID of the hard disk, the same thing only in ALERT - UUID hard instead of /dev/sda

I read on the forums that on some machines with such an error, the system boots through time. I generally always get this error. What else can it be connected with? Can the virtual hard disk settings in HyperV be damaged? Or is the media physically damaged? Tell me.

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