On Wed, Apr 23, 2014 at 12:09:26AM -0500, Bruce Dubbs wrote: > Ken Moffat wrote: > > On Sun, Apr 20, 2014 at 03:19:45PM -0500, Bruce Dubbs wrote: > >> > >> Last night I was trying to figure out how to set the dmesg log level in > >> systemd. It turns out that it can be done with sysctl and set: > >> > >> kernel.printk = 4 4 1 7 > >> > >> where the numbers are console_loglevel, default_message_loglevel, > >> minimum_console_loglevel, and default_console_loglevel. The only number > >> we really are concerned with is the first. > >> > >> This can be done in either sysd or sysv, but it's not as simple as > >> setting LOGLEVEL=4 and then use dmesg -n $LOGLEVEL in a script which is > >> how we do it now. > >> > > > > I think that ought to be documented somewhere in LFS. Googling for > > this, all that came up was a recommendation from Arch to pass > > loglevel=4 [ they actually recommend 3 ] among the boot arguments. > > > > Also, I haven't ever needed to use sysctl in the past - it appears > > to be something that is set at runtime, so if I had needed it I > > would have put it in an initscript. If I do this with systemd, how > > am I _supposed_ to do it ? [ google is not helpful, or I've got the > > wrong search args ]. > > Hmm. > http://www.linuxfromscratch.org/lfs/view/development/chapter07/sysd-custom.html > > 7.1.1: "The /etc/systemd/system.conf file contains a set of items to > control basic operations. The default file has all entries commented out > with the default settings indicated. This file is where the log level > may be changed as well as some basic journal settings." > > Perhaps I need to make that more obvious. > > -- Bruce > Thanks for the pointer (I have not built systemd at the moment, still trying to sort out enough details for me to have a chance of getting the whole thing working). But your use of sysctl looks unnecessarily long-winded : why not just something like this ? :
sed -i 's/#LogLevel=info/LogLevel=warning/' \ /etc/systemd/system.conf ĸen -- das eine Mal als Tragödie, dieses Mal als Farce -- http://linuxfromscratch.org/mailman/listinfo/blfs-dev FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
