My 2nd Gen (2010) MacBook Air's disk volume was filling up.


root# df -h .
Filesystem     Size   Used  Avail Capacity  Mounted on
/dev/disk1s2  225Gi  219Gi  6.0Gi    98%    /Users/dew


So I deleted some stuff and then rebooted:


root# df -h .
Filesystem     Size   Used  Avail Capacity  Mounted on
/dev/disk0s2  112Gi   80Gi   32Gi    72%    /


SO CONFUSING.