Build stops: Permission denied

Asked by Thorsten Wagner

I am trying to provide a kernel modul via launchpad, but the build process stopps. The kernel modul is not part of the main kernel/ubuntu branch. I try to publish it up via a Here is the error from the build log for the package sranger-modules-mk23 :

/usr/bin/make DESTDIR=/build/buildd/sranger-modules-mk23-0.0.1/debian/sranger-modules-mk23 install
make[1]: Entering directory `/build/buildd/sranger-modules-mk23-0.0.1'
/usr/bin/make -C /lib/modules/3.0.0-13-generic/build M=/build/buildd/sranger-modules-mk23-0.0.1 DESTDIR=/build/buildd/sranger-modules-mk23-0.0.1/debian/sranger-modules-mk23 modules_install
make[2]: Entering directory `/usr/src/linux-headers-3.0.0-13-generic'
mkdir: cannot create directory `/lib/modules/3.0.0-13-generic/extra': Permission denied

I can make a deb-file on my computer via debuild (binary and source). I can use the source-deb also via the module-assistant to compile and install on my computer. So everything is fine on my PC.

Just a final note for everyone trying to reproduce the bug: The kernel version 3.0.0-13-generic is hard coded in the script. I already had some trouble with using uname -a on the server which produces some string like 2.6.x-xen.


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William Grant (wgrant) said :

Your build is trying to write to /lib, rather than $DESTDIR/lib. Builds don't run as root -- they have to write to the build directory.

Are you aware of DKMS? Nowadays out-of-tree kernel modules tend to be distributed as source, and build against the correct kernel version when they're installed.

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