I had SD card with linux that was working fine I connected it to the pc and copied all directories there like root usr lib and so on ,,, I just have directories I made a mistake and formatted the SD card and lost everything and it's not bootable
I am using linux mageia as os for both pc and SD
Please let me know how can I make the SD bootable using only the linux directories I have
Its impossible to have bootable image from these files. They can be used to restore the backup.