Before writing this post I have try two way to resolve this problem.
I attack the screenshot of my gparted which I would add the unallocated space to the /dev/sda8
/home
.
First way: I used the command umount -l /dev/sda8
(I used command line because it's impossible to unmount from gui ----> error: device is busy
to unmount the space and then I tried sudo resize2fs /dev/sda8
but I have this output --> The filesystem is already 36621056 blocks long Nothing to do!.
Second way: run mint in live and through this I tried to modify with gparted the partition space /dev/sda8
but when click on the bottom resize it's impossible to grow the space, as there isn't an unallocated space.
So how can I try to resolve this problem?