readahead: wipe out readahead

units: remove RefuseManualStart from units which are always around In a normal running system, non-passive targets and units used during early bootup are always started. So refusing "manual start" for them doesn't make any difference, because a "start" command doesn't cause any action. In early boot however, the administrator might want to start on of those targets or services by hand. We shouldn't interfere with that. Note: in case of systemd-tmpfiles-setup.service, really running the unit after system is up would break the system. So e.g. restarting should not be allowed. The unit has "RefuseManualStop=yes", which prevents restart too.

units: rebuild /etc/passwd, the udev hwdb and the journal catalog files on boot Only when necessary of course, nicely guarded with the new ConditionNeedsUpdate= condition we added.

units: remove conditions from systemd-tmpfiles-setup There's no point in conditionalizing systemd-tmpfiles at boot, since we ship tmpfiles snippets ourselves, hence they will always trigger anyway. Also, there's no reason to pull in local-fs.target from the service, hence drop that.

tmpfiles: rename --unsafe to --boot As suggested by Kay, it is better to describe what is done, not what might happen.

tmpfiles: introduce the concept of unsafe operations Various operations done by systemd-tmpfiles may only be safely done at boot (e.g. removal of X lockfiles in /tmp, creation of /run/nologin). Other operations may be done at any point in time (e.g. setting the ownership on /{run,var}/log/journal). This distinction is largely orthogonal to the type of operation. A new switch --unsafe is added, and operations which should only be executed during bootup are marked with an exclamation mark in the configuration files. systemd-tmpfiles.service is modified to use this switch, and guards are added so it is hard to re-start it by mistake. If we install a new version of systemd, we actually want to enforce some changes to tmpfiles configuration immediately. This should now be possible to do safely, so distribution packages can be modified to execute the "safe" subset at package installation time. /run/nologin creation is split out into a separate service, to make it easy to override. https://bugzilla.redhat.com/show_bug.cgi?id=1043212 https://bugzilla.redhat.com/show_bug.cgi?id=1045849

man,units: tmpfiles.d(5) cleanup Condition for /lib (necessary for split /usr) was missing from the unit. Some changes which were done in tmpfiles.d(5) were not carried over to systemd-tmpfiles(1). Also use markup where possible.

tmpfiles-setup: exclude /dev prefixes files Fixes Arch Linux bug: https://bugs.archlinux.org/task/36259

units: rework systemd-random-seed-{load,save}.service to be a single service That way ordering it with MountsRequiredFor= works properly, as this no longer results in mount units start requests to be added to the shutdown transaction that conflict with stop requests for the same unit.

man: link systemd-tmpfiles-setup-dev.service

units: introduce new Documentation= field and make use of it everywhere This should help making the boot process a bit easier to explore and understand for the administrator. The simple idea is that "systemctl status" now shows a link to documentation alongside the other status and decriptionary information of a service. This patch adds the necessary fields to all our shipped units if we have proper documentation for them.

relicense to LGPLv2.1 (with exceptions) We finally got the OK from all contributors with non-trivial commits to relicense systemd from GPL2+ to LGPL2.1+. Some udev bits continue to be GPL2+ for now, but we are looking into relicensing them too, to allow free copy/paste of all code within systemd. The bits that used to be MIT continue to be MIT. The big benefit of the relicensing is that closed source code may now link against libsystemd-login.so and friends.

binfmt, modules-load, sysctl, tmpfiles: add missing ConditionDirectoryNotEmpty=

tmpfiles: move binary to /bin to make it publicly available

units: move a couple of units from base.target to sysinit.target

tmpfiles: integrate kay's directory cleanup code and otherwise beef up tmpfiles quite a bit