Official documents indicte that the location of the porevious log file, but I can not find yesterday log , i can only find the day before yesterday log. Should I use some commands to generate yesterday's log？
maybe you can adopt a filter by time for getting a proper log. I think this article - time windows section - will be helpful to you : https://www.digitalocean.com/community/tutorials/how-to-use-journalctl-to-view-and-manipulate-systemd-logs