This is kind of an addendum to APFS/High Sierra - `tmutil deletelocalsnapshots` not deleting snapshots as I've discovered a new quirk in
My snapshots all have
pm appended. I have no idea why & no-one else seems to have this from what research I've done.
This gives a new problem...
TetsMac:~ glee$ tmutil listlocalsnapshots / com.apple.TimeMachine.2018-07-26-93812 am (dataless) TetsMac:~ glee$ tmutil deletelocalsnapshots 2018-07-26-93812 Error parsing argument 2018-07-26-93812 TetsMac:~ glee$ tmutil deletelocalsnapshots 2018-07-26-93812 am Usage: tmutil deletelocalsnapshots <snapshot_date>
It can't find it if you leave the am/pm off & it thinks the format is wrong if you add it.
What else can be done to delete this errant snapshot?