Following the instructions at https://fedoraproject.org/wiki/Architectures/ARM/Chromebook, I have encountered this issue. I use the default workstation build (I guess it's Gnome) instead of an spin here, however I have tested all the spins and they fail to build also. Basically the fs seems to be corrupt:
```sh $ cd /var/tmp ```
```sh $ wget http://download.fedoraproject.org/pub/fedora/linux/releases/25/Workstation/a... ```
Unpack the archive
```sh $ unxz -v -k Fedora-Workstation-armhfp-25-1.3-sda.raw.xz ```
Next you mount the raw disk image
```sh $ sudo kpartx -av /var/tmp/Fedora-Workstation-armhfp-25-1.3-sda.raw ```
The device mapping output:
```sh add map loop0p1 (253:4): 0 59392 linear /dev/loop0 2048 add map loop0p2 (253:5): 0 999424 linear /dev/loop0 61440 add map loop0p3 (253:6): 0 999424 linear /dev/loop0 1060864 add map loop0p4 (253:7): 0 10741760 linear /dev/loop0 2060288 ```
Extract the root file system
```sh $ sudo dd if=/dev/mapper/loop0p3 of=/var/tmp/Fedora-25-Workstation-rootfs.ext4 conv=fsync status=progress ```
Delete the raw disk image mappings
```sh $ sudo kpartx -d /var/tmp/Fedora-Workstation-armhfp-25-1.3-sda.raw ```
Check the root file system copy
```sh $ sudo e2fsck -f /var/tmp/Fedora-25-Workstation-rootfs.ext4 ```
e2fsck fails, error message
```sh e2fsck 1.43.1 (08-Jun-2016) ext2fs_open2: Bad magic number in super-block e2fsck: Superblock invalid, trying backup blocks... e2fsck: Bad magic number in super-block while trying to open /var/tmp/Fedora-25-Workstation-rootfs.ext4
The superblock could not be read or does not describe a valid ext2/ext3/ext4 filesystem. If the device is valid and it really contains an ext2/ext3/ext4 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device> or e2fsck -b 32768 <device>
/var/tmp/Fedora-25-Workstation-rootfs.ext4 contains a swap file system labelled '_swap' ```
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