Konstantinos: Try http://askubuntu.com/questions/19486/how-do-i-add-a-kernel-boot-parameter or https://help.ubuntu.com/community/BootOptions#Changing_the_CD.27s_Default_Boot_Options
The actual way to get to the kernel command line (the one looking like "linux /boot/vmlinuz-linux root=UUID=978e3e81-8048-4ae1-8a06-aa727458e8ff quiet splash ") might vary depending on whether you booted in BIOS or UEFI mode.
Konstantinos: Try http:// askubuntu. com/questions/ 19486/how- do-i-add- a-kernel- boot-parameter or https:/ /help.ubuntu. com/community/ BootOptions# Changing_ the_CD. 27s_Default_ Boot_Options
The actual way to get to the kernel command line (the one looking like "linux /boot/vmlinuz-linux root=UUID= 978e3e81- 8048-4ae1- 8a06-aa727458e8 ff quiet splash
") might vary depending on whether you booted in BIOS or UEFI mode.