Are you telling us that this is output of umount command? Because there is no output of previous commands shown by you.
Never describe what you saw. Always copy and paste complete commands and full output in exact order as they appear. Only then can we see what you did, what was the result and make our own conclusions.
Assuming that these messages are printed by rsync, the content of home/ion is irrelevant - rsync tries to delete files below /mnt/out.
Thanks for the assistance. I resolved the problem. The directory TOR on the drive mounted on /mnt/out was not writable and belonged to an unknown user. Likely created by installing the Tor browser. The error was reported on executing the bash script using mount then rsync and was off the screen before I could see it.
Yes, when you are making all under /mnt/out/IONDATA the same as under /home/ion, then all the changing will take place under /mnt/out/IONDATA and never under /home/ion. So any message about writing/deleting (remember your --delete option) will be about /mnt/out/IONDATA.
Yes of course your response is most succinct. I was concerned and not thinking clearly. I was checking the “from” location instead of the “to” location. Thanks again.
Users may want to use systemd services. Errors are logged and preserved in the journal:
erlangen:~ # journalctl -q -u backup-home.service -p5
Jan 24 06:05:17 erlangen systemd[1]: backup-home.service: Main process exited, code=exited, status=24/n/a
Jan 24 06:05:20 erlangen systemd[1]: backup-home.service: Failed with result 'exit-code'.
Jan 31 03:31:14 erlangen systemd[1]: backup-home.service: Main process exited, code=exited, status=24/n/a
Jan 31 03:31:20 erlangen systemd[1]: backup-home.service: Failed with result 'exit-code'.
Feb 06 04:32:18 erlangen systemd[1]: backup-home.service: Main process exited, code=exited, status=24/n/a
Feb 06 04:32:24 erlangen systemd[1]: backup-home.service: Failed with result 'exit-code'.
Feb 14 23:16:50 erlangen systemd[1]: backup-home.service: Main process exited, code=exited, status=24/n/a
Feb 14 23:16:55 erlangen systemd[1]: backup-home.service: Failed with result 'exit-code'.
Mar 20 04:11:09 erlangen systemd[1]: backup-home.service: Main process exited, code=exited, status=24/n/a
Mar 20 04:11:13 erlangen systemd[1]: backup-home.service: Failed with result 'exit-code'.
erlangen:~ #
Furthermore services are running in the system slice and thus are immune to user interference.