replacing rsyslogd in minimal with journald [was Re: systemd requires HTTP server and serves QR codes]

Richard W.M. Jones rjones at
Wed Oct 10 08:54:28 UTC 2012

On Wed, Oct 10, 2012 at 09:50:43AM +0200, Björn Persson wrote:
> Lennart Poettering wrote:
> > On Tue, 09.10.12 09:09, Chris Adams (cmadams at wrote:
> > > How do you read this log when the system is not running (e.g.
> > > mounting filesystems of a drive on another system, running from a
> > > rescue image, etc.)?
> > 
> > journalctl -D <pathtothejournalfiles>
> So the rescue system (which might not always be Fedora) must have 
> journalctl installed. Is the file format stable, or can it break if the 
> rescue system has a different version of journalctl? Is the format 
> perchance even documented so that other tools for reading logs could be 
> written?

This would be essential for libguestfs tools to parse logs out of
guests (we do it now by reading /var/log/messages etc which has all of
the properties you state).


Richard Jones, Virtualization Group, Red Hat
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.

More information about the devel mailing list