I recently mounted the tmpfs in /dev/sda1 where the windows partition was supposed to be at so since then i got a invalid signature when i clicked the windows in grub menu. later I used boot-repair hoping it would solve it what it did was remove the windows from my grub choices. i've also tried reinstalling grub. i know i've got to change something with /etc/fstab but im too scared.
when i click os-prober i get no result, tried update-grub still nothing.
there's my partitions.
please help.. I just don't want any data to get deleted.