sun.shuchun
2010-Feb-08 00:46 UTC
[Xen-devel] how to ouput log messages of pygrub into user console
Hello, everyone! I have somes questions as follows: I found there are some print commands in the pygrub, but I don''t know where pygrub outputs them. Could anyone tell me some details about this? Also, I wanted to output some log messages into "/var/log/xen/xend.log" and tried to "from XendLogging import log", but failed to import the log object. What should I do for this if I want to use the log object that already have in the xen source? Regards. Sun Shuchun _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Pasi Kärkkäinen
2010-Feb-08 07:31 UTC
Re: [Xen-devel] how to ouput log messages of pygrub into user console
On Mon, Feb 08, 2010 at 09:46:12AM +0900, sun.shuchun wrote:> Hello, everyone! > > I have somes questions as follows: > > I found there are some print commands in the pygrub, > but I don''t know where pygrub outputs them. > > Could anyone tell me some details about this? >"xm create -f /etc/xen/<guest> -c" will show the pygrub console. I don''t know if it can be redirected to vfb.. -- Pasi> Also, > I wanted to output some log messages into "/var/log/xen/xend.log" > and tried to "from XendLogging import log", > but failed to import the log object. > What should I do for this if I want to use the log object that already > have in the xen source? > > Regards. > Sun Shuchun > > > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
sun.shuchun
2010-Feb-08 09:20 UTC
Re: [Xen-devel] how to ouput log messages of pygrub into user console
Hello Mr Pasi, Thank you for your reply! I did as what you told me to do, but I can not get any message in the user console. I insert a print command like : print "this is a test", then I carried out "xm create -f /etc/xen/<guest> -c". Do I have any mistake in the opreations above? Or any other nessary opreation was missed. I did get a message in the user console by creating a new fifo file at XendBootloader.py. But, I don''t know a much easier way to solve it. Regards. sun shuchun Pasi Kärkkäinen さんは書きました:> On Mon, Feb 08, 2010 at 09:46:12AM +0900, sun.shuchun wrote: >> Hello, everyone! >> >> I have somes questions as follows: >> >> I found there are some print commands in the pygrub, >> but I don''t know where pygrub outputs them. >> >> Could anyone tell me some details about this? >> > > "xm create -f /etc/xen/<guest> -c" will show the pygrub console. > > I don''t know if it can be redirected to vfb.. > > -- Pasi > >> Also, >> I wanted to output some log messages into "/var/log/xen/xend.log" >> and tried to "from XendLogging import log", >> but failed to import the log object. >> What should I do for this if I want to use the log object that already >> have in the xen source? >> >> Regards. >> Sun Shuchun >> >> >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@lists.xensource.com >> http://lists.xensource.com/xen-devel > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > >_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel