Ubuntu's unexpected inconsistency
After an update of Ubuntu this morning I was asked to reboot. On rebooting the GUI briefly appeared and then went to the command line and the outstanding message was:
UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY.
The first time this happened which is months ago I just rebooted the machine and that cleared the error.
This time around rebooting didn't work and so I had to type the command fsck and then
answered yes to a series of y/n fix questions that followed and thankfully the problem was