Upon rebooting using
shutdown -rF now of my Raspberry Pi 3, I am presented with
emergency mode, however, I am unable to run
fsck -fy on the root partition.
I am presented with the following error:
[FAILED] Failed to start File System Check on Root Device.
Thus, I try to run
fsck -fy after logging into
maintenance mode, I get the following error:
...snip... /dev/mmcblk0p2 is mounted. e2fsck: Cannot continue, aborting.
So, I attempt to unmount the partition using
umount -f /dev/mmcblk0p2, but I get the following error:
umount: /: target is busy
How do I fix this?