.It 3
A quick-check (the
.Fl n
-option) found a dirty filesystem; no repairs were made.
+option) found a dirty filesystem; no repairs were made. There is a potential
+corruption in the filesystem, and either the journal could not be read, or a
+runtime corruption was present so the HFS Volume Inconsistent bit was set.
.It 4
During boot, the root filesystem was found to be dirty; repairs were
made, and the filesystem was remounted. The system should be rebooted.