{{tag>Brouillon Module}}

= Notes DKMS et construction paquet Debian netatop

DKMS
* http://blog.valouille.fr/2013/05/compiler-un-paquet-debian-dkms-pour-un-module-noyau/
* http://www.xkyle.com/building-linux-packages-for-kernel-drivers/

Netatop DKMS :
* https://aur.archlinux.org/packages/netatop-dkms/

<code ->
Error!  Build offailed for:
Consult the make.log in the build directory
</code>

On met le code source dans
/usr/src/netatop-0.7

On créer un fichier dkms.conf

''/usr/src/netatop-0.7/dkms.conf''
<code ini>
PACKAGE_NAME="netatop"
PACKAGE_VERSION="0.7"
MAKE="make"
CLEAN="make clean"
BUILT_MODULE_NAME[0]="netatop"
DEST_MODULE_LOCATION[0]="/updates"
AUTOINSTALL="yes"
REMAKE_INITRD=no
</code>

<code bash>
dkms add -m netatop -v 0.7
</code>

<code ->
Creating symlink /var/lib/dkms/netatop/0.7/source ->
                 /usr/src/netatop-0.7

DKMS: add completed
</code>

<code bash>
dkms build -m netatop -v 0.7
</code>

<code ->
Error!  Build of netatop.ko failed for: 3.16.0-4-amd64 (x86_64)
Consult the make.log in the build directory
</code>
Si erreur on copie le Makefile, que l'on modifiera


<code bash>
cp -p Makefile Makefile.dkms
vim Makefile.dkms
</code>

''/usr/src/netatop-0.7/Makefile.dkms''
<code make>
all:
                ./mkversion
                cd module; make
                cp -p ./module/netatop.ko .

clean:
                cd module; make clean
</code>

On modifie me fichier dkms.conf pour que **make** prend le nouveau Makefile.dkms

''/usr/src/netatop-0.7/dkms.conf''
<code ini>
PACKAGE_NAME="netatop"
PACKAGE_VERSION="0.7"
MAKE="make -f Makefile.dkms"
CLEAN="make -f Makefile.dkms clean"
BUILT_MODULE_NAME[0]="netatop"
DEST_MODULE_LOCATION[0]="/updates"
AUTOINSTALL="yes"
REMAKE_INITRD=no
</code>

Puis

<code bash>
dkms build -m netatop -v 0.7
</code>

Construction d'un paquet Debian
<code bash>
dkms mkdeb -m netatop -v 0.7
cp -p /var/lib/dkms/netatop/0.7/deb/netatop-dkms_0.7_all.deb ~
</code>

Reset : On remet tous à neuf

<code bash>
make clean
dkms remove -m netatop -v 0.7 -k all
rm /var/lib/dkms/netatop -rf
</code>

On test

<code bash>
dpkg -i netatop-dkms_0.7_all.deb
</code>

<code ->
DKMS: add completed.
First Installation: checking all kernels...
Building only for 3.16.0-4-amd64
Building for architecture amd64
Building initial module for 3.16.0-4-amd64
Error! Bad return status for module build on kernel: 3.16.0-4-amd64 (amd64)
Consult /var/lib/dkms/netatop/0.7/build/make.log for more information.
</code>

Voyons ça
''/var/lib/dkms/netatop/0.7/build/make.log''
<code ->
DKMS make.log for netatop-0.7 for kernel 3.16.0-4-amd64 (amd64)
dimanche 8 mai 2016, 22:05:44 (UTC+0200)
./mkversion
make: execvp: ./mkversion: Permission non accordée
Makefile.dkms:2: recipe for target 'all' failed
make: *** [all] Error 127
</code>

La solution la plus simple, on ajoute un ''chmod +x'' dans le Makefile.dkms

''Makefile.dkms''
<code make>
all:
        chmod +x ./mkversion ./netatop.init
        ./mkversion
        cd module; make
        cp -p ./module/netatop.ko .

clean:
        cd module; make clean
</code>


== Notes

Status
<code bash>
dkms status -m netatop
</code>

Reset : On remet tous à neuf
<code bash>
make clean
dkms remove -m netatop -v 0.7 -k all
rm /var/lib/dkms/netatop -rf
</code>

Module linux
<code ->
rmmod netatop
modprobe netatop
depmod -a
</code>


Exemple de conf

''dkms.conf''
<code ini>
PACKAGE_NAME="e1000e"
PACKAGE_VERSION="3.4.2.4"
MAKE[0]="cd src/ && make KVERSION=$kernelver BUILD_KERNEL=$kernelver"
CLEAN="cd src/ && make clean"
BUILT_MODULE_NAME[0]="e1000e"
BUILT_MODULE_LOCATION[0]="src/"
DEST_MODULE_LOCATION[0]="/updates"
REMAKE_INITRD="yes"
AUTOINSTALL="yes"
</code>

Source : https://github.com/kelebek333/e1000e-dkms/blob/master/dkms.conf