Language Selection

English French German Italian Portuguese Spanish

systemd Status Update

Filed under
Software

It has been a while since my last status update on systemd. Here's another short, incomprehensive status update on what we worked on for systemd since then.

  • Fedora F15 (Rawhide) now includes a split up /etc/init.d/rc.sysinit (Bill Nottingham). This allows us to keep only a minimal compatibility set of shell scripts around, and boot otherwise a system without any shell scripts at all. In fact, shell scripts during early boot are only used in exceptional cases, i.e. when you enabled autoswapping (bad idea anyway), when a full SELinux relabel is necessary, during the first boot after initialization, if you have static kernel modules to load (which are not configured via the systemd-native way to do that), if you boot from a read-only NFS server, or when you rely on LVM/RAID/Multipath. If nothing of this applies to you can easily disable these parts of early boot and save several seconds on boot. How to do this I will describe in a later blog story.

  • We have a fully C coded shutdown logic that kills all remaining processes, unmounts all remaining file systems, detaches all loop devices and DM volumes and does that in the right way to ensure that all these things are properly teared down even if they depend on each other in arbitrary ways. This is not only considerably faster then the traditional shell hackery for this, but also a lot safer, since we try to unmount/remount the remaining file systems with a little bit of brains. This feature is available via systemctl --force poweroff to the administrator. The --force controls whether the usual shutdown of all services is run or whether this is skipped and we immediately shall enter this final C shutdown logic. Using --force hence is a much safer replacement for the old /sbin/reboot -f and does not leave dirty file systems behind. (Thanks to Fabiano Fidencio has his colleagues from ProFUSION for this).

rest here




More in Tux Machines

European Greens RFC: ‘Transparency implies use of open source’

The Greens/European Free Alliance in the European Parliament want to find out for once and for all if the use of free and open source software is essential for the democratic institution. The political group is asking for comments on a study linking the use of free software to the European Parliament’s principles of openness and right to information. Read more

Top 3 open source alternatives to Google Analytics

Let’s start off by taking a look at the open source application that rivals Google Analytics for functions: Piwik. Piwik does most of what Google Analytics does, and chances are it packs the features that you need. Those features include metrics on the number of visitors hitting your site, data on where they come from (both on the web and geographically), from what pages they leave your site, and the ability to track search engine referrals. Piwik also has a number of reports and you can customize the dashboard to view the metrics that you want to see. To make your life easier, Piwik integrates with over 65 content management, ecommerce, and online forum systems like WordPress, Magneto, Joomla!, and vBulletin using plugins. With anything else, you just need to add a tracking code to a page on your site. Read more

AN EARLY VIEW OF GTK+ 3.16

We’ve had long-standing feature requests to turn scrollbars into overlayed indicators, for touch systems. An implementation of this idea has been merged now. We show traditional scrollbars when a mouse is detected, otherwise we fade in narrow, translucent indicators. The indicators are rendered on top of the content and don’t take up extra space. When you move the pointer over the indicator, it turns into a full-width scrollbar that can be used as such. Read more