How to Edit Message of the Day in Ubuntu

Please, explain how make an identical copy of a boot ssd enclosing multi-booting Linux distros? Or, is there a better way to backup the system and data so that you can easily recover them, when something has gone wrong or even replace the old ssd?

I need help on the blinking cursor video you did. The last part didn’t work the “SYS” part and I don’t know what to do please help

Man please answer my question how to orange and white lines in windows 10 but i dont have any password inserted or install in the pc and idont know the bitlocker password please men what is the default password of the bitlocker please and how do may open it pleaseeeee