yep that seems to be the reason. if the service is started it only shows lines relevant to the current instance, if its not started it will show the requested number of lines. maybe the manpage should include something about this. it confused me. feel free to mark this as a feature request or close it. thanks
2017-07-03 20:18 GMT+08:00 Dimitri John Ledkov <launch...@surgut.co.uk>: > are there more than 10 lines of logs for the current /instance/ of the > unit? E.g. has it produced more than 10 lines of output since it was > started? > > For example, I launch a lxd container of xenial, and $ systemctl status > -n 20 cloud-init -> displays 20 lines of logs. > > How long is the journal for that unit since boot? E.g. journalctl -b -u > SERVICE | wc ? > > > ** Changed in: systemd (Ubuntu) > Status: New => Incomplete > > -- > You received this bug notification because you are subscribed to the bug > report. > https://bugs.launchpad.net/bugs/1702063 > > Title: > systemctl -n option ignores values greater than 10 > > Status in systemd package in Ubuntu: > Incomplete > > Bug description: > The manpage for systemctl says that -n can be used to specify how many > journal lines to show. > > It only works for values <= 10, there is no way to make it show more > than 10 lines. For example 'systemctl -n 100 status SERVICE' shows 10 > lines, not 100. 'journalctl -n 100 -u SERVICE' does work as expected > though. > > Its confusing if you are not aware of this and can make you miss > important output from a failed program. > > systemd package version: 229-4ubuntu17 > systemctl version: systemd 229 > > To manage notifications about this bug go to: > https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/ > 1702063/+subscriptions > -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1702063 Title: systemctl -n option ignores values greater than 10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1702063/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
