Thank you Todd. And I'm sorry to Paul for not reading his post more thoroughly regarding the mount points.
At some point my rsync script ran while /backup wasn't mounted or something. The culprit was there. On Wed, Aug 4, 2021 at 1:41 PM Todd C. Miller <todd.mil...@sudo.ws> wrote: > On Wed, 04 Aug 2021 13:32:54 -0700, Greg Thomas wrote: > > > I'm at a loss, I booted in single user mode, ran fsck on /dev/sd0a and it > > shows clean. I still have a large discrepancy between df and du. > > Did you verify that nothing was hiding under the mount points? For > example, when booted in single user mode with only the root partition > mounted the /tmp, /home, /var, /usr and /backup directories should > be empty. > > - todd >