Erro ao inicializar 9.10

[Zaraki0101]

Boa tarde

liguei meu note hoje e ficou na tela preta com essa menssagem :

mount:mounting /dev/disk/by-uunid845cbcdc-af30-41f6-947e-fdfa883823e on /root
failed:invalid argument
mount:mounting /sys on /root/sys failed:no such file or directory
mount:mounting /dev on /root/dev failed:no such file or directory
mount:mounting /sys on /root/sys failed:no such file or directory
mount:mounting /proc on /root/proc failed:no such file or directory
Target file system does't have/sbin/init
no init found.Try passing init=bootarg

Busyboot v1.13.3(Ubuntu 1:1.13.3-ubuntu7) build-in shel(ash)
Enter 'help' for a lis of build-in comands


alguem tem ideia de como faço para voltar ele ao normal??

desde ja agradeço