I have recently installed Fedora Server 25 on my Raspberry PI 3, and the install was really easy. But, I am having problems resizing the hardrive using the following instructions: https://fedoraproject.org/wiki/Raspberry_Pi#Resize_after_initial-setup. I only get the following error when issuing the resize command:

[test@localhost ~]$ sudo resize2fs /dev/mmcblk0p4

[sudo] password for test: 

resize2fs 1.43.1 (08-Jun-2016)

resize2fs: Bad magic number in super-block while trying to open /dev/mmcblk0p4

Couldn't find valid filesystem superblock.

[test@localhost ~]$ 

Any ideas?

Thanks,

Rafael