On Wed, May 23, 2007 8:59 am, Christoph Maier wrote: > On Wed, 2007-05-23 at 08:39 -0700, Lan Barnes wrote: > >> Usually /var/log/messages. I often zero it with: >> >> cat /dev/null>/var/log/messages >> >> Have to be root to do that. > > If I understand correctly what this command is doing > (empty the /var/log/messages file?), > it is the last thing Bill wants to do, > because it would get rid of the error messages that he saw during > installation, which probably still exist in some log file, > maybe /var/log/messages > (well, it's somewhat hard to be root in ubuntu, anyway). >
No, you're right, it obliterates the message log. However, being lazy, I often do this just before purposely percipitating the error again. It simplifies looking for the error. Bill, pay no attention to me. Listen to Christoph. > Then again, I may misunderstand the cat command, and you may redirect > everything that usually goes to /dev/null (i.e. the official Unix > write-only memory) to /var/log/messages instead. > > I tried (unsuccessfully) to identify the messages related to my sound > card in the log files, and noticed that ubuntu keeps a lot of messages. >>From time to time, it seems to gzip (for newbies: compress a file using > the gzip tool; type > man gzip > in a terminal to see details) the existing messages and start a new log > file. Rather nice if something goes wrong and you want to be able to > trace back how things _started_ to go wrong quite a while before you > noticed. > > lspci | grep udio > gets me the line that refers to my audio controller (it says "Audio", > not "audio", so I need to omit the first letter when searching). > >> Also you can use tail on the file to see the >> latest stuff. tail -f will do a live tail so you can do stuff and see >> the >> log messages pop up. >> >> A wonderful source of info is dmesg. >> >> dmesg | less >> >> This gives the latest poop on what the kernel is seeing, similar to the >> boot up messages. >> >> HTH, >> >> -- >> Lan Barnes >> >> SCM Analyst Linux Guy >> Tcl/Tk Enthusiast Biodiesel Brewer >> > > Christoph > > -- > [email protected] > http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-newbie > -- Lan Barnes SCM Analyst Linux Guy Tcl/Tk Enthusiast Biodiesel Brewer -- [email protected] http://www.kernel-panic.org/cgi-bin/mailman/listinfo/kplug-newbie
