From: Daniel.Thibault@drdc-rddc.gc.ca (Thibault, Daniel)
Subject: [lttng-dev] make a trace_event in a module (driver)
Date: Thu, 21 Nov 2013 14:23:08 +0000 [thread overview]
Message-ID: <48CF5AC71E61DB46B70D0F388054EFFD267A5634@VAL-E-01.valcartier.drdc-rddc.gc.ca> (raw)
> Date: Thu, 21 Nov 2013 10:48:59 +0100
> From: Klaus Dannecker <klaus.dannecker@gmx.de>
>
> now i have ubuntu 13.10 installed in a vmware.
> but i have the same error!
>
>$ sudo make modules_install
> make -C /lib/modules/3.11.0-12-generic/build
> M=/home/klaus/lttng_src/lttng-modules modules_install
> make[1]: Entering directory `/usr/src/linux-headers-3.11.0-12-generic'
> INSTALL /home/klaus/lttng_src/lttng-modules/lib/lttng-lib-ring-buffer.ko
> Can't read private key
> ....
> lsmod | grep lttng
> -> no module found
This seems to be a problem with Ubuntu 13, which now requires kernel modules to be signed (or is this a kernel 3.8.5 feature/requirement?). It is surprisingly hard to find a simple workaround on the Web (I gave up after a while). Some threads seem to indicate the error can be ignored, so it may just be a matter of making sure the 'make modules_install' doesn't give up at that point. Another possibility may be to install the kernel's "Linux Kernel Archives Verification Key" GPG key (see e.g. http://alien.slackbook.org/dokuwiki/doku.php?id=linux:kernelbuilding): 'gpg --keyserver wwwkeys.pgp.net --recv-keys 0x517D0F0E'
Daniel U. Thibault
Protection des syst?mes et contremesures (PSC) | Systems Protection & Countermeasures (SPC)
Cyber s?curit? pour les missions essentielles (CME) | Mission Critical Cyber Security (MCCS)
R & D pour la d?fense Canada - Valcartier (RDDC Valcartier) | Defence R&D Canada - Valcartier (DRDC Valcartier)
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next reply other threads:[~2013-11-21 14:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-21 14:23 Thibault, Daniel [this message]
2013-11-25 15:53 Thibault, Daniel
2013-11-25 17:00 ` Jérémie Galarneau
2013-11-25 18:14 ` Klaus Dannecker
2013-11-25 19:22 Thibault, Daniel
2013-11-26 17:32 ` Klaus Dannecker
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