Comment 0 for bug 1435774

Steps to reproduce:

# from ubuntu-core 184 to 185
sudo snappy-go update (using snappy-go because of this: bug 1433485)
sudo reboot

# system bring up correctly

# from ubuntu-core 185 to 186

ubuntu@localhost:/etc/system-image$ sudo snappy-go update
Installing ubuntu-core (186)
Starting download of ubuntu-core
138.44 KB / 138.44 KB [================================================================================================================================================================================] 100.00 % 3.95 KB/s
Done
error from system-image-cli: ('%s exited with %s:\n%s', ['ubuntu-core-upgrade'], 1, "['/sbin/fsck', '-M', '-av', b'/dev/mmcblk0p2'] returned 4 (failed): fsck from util-linux 2.25.2\nsystem-a contains a file system with errors, check forced.\nsystem-a: Inode 9096 (...) has invalid mode (014).\n, \n\nsystem-a: UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.\n\t(i.e., without -a or -p options)\n\nI: preparing root filesy")