The error message also appears when both "aufs" and "loop" are compiled as a module. The problem is that depmod doesn't detect "loop" as a dependency module of "aufs". So you need to manually load "loop", then "aufs" (happens in Archlinux linux-zen kernel, for example). I got the following answer about it:
Depmod only figures out dependencies via undefined symbols. AUFS doesn't call loop_backing_file directly, it just redirects it. Seems that this doesn't create a detectable dependency. Is there anything you can do about this? Florian Am 02.09.2013 00:00, schrieb [1]sf...@users.sourceforge.net: Hillo Philip, Philip Muller: /Aufs au_loopback_init:136:modprobe[122]: loop_backing_file() is not=20 defined/ Ouch. The function was added into aufs3-loopback.patch. Later it was moved aufs3-base.patch. But it was removed... I've found it now. I think it is a problem of my release script and I am going to fix it. Until then, please apply this patch. J. R. Okajima ------------------------------------------------------------------------------ Learn the latest--Visual Studio 2012, SharePoint 2013, SQL 2012, more! Discover the easy way to master current and previous Microsoft technologies and advance your career. Get an incredible 1,500+ hours of step-by-step tutorial videos with LearnDevNow. Subscribe today and save! [2]http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk References 1. mailto:sf...@users.sourceforge.net 2. http://pubads.g.doubleclick.net/gampad/clk?id=58040911&iu=/4140/ostg.clktrk
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