DKMS is not recreate the module

[fumantsu]

Hi,

I have notice twice since a fresh install that every time that I have a new kernel, DKMS is removing the module but it doesn't recreate it run-parts: executing /etc/kernel/prerm.d/dkms 4.4.32+ /boot/kernel.img run-parts: executing /etc/kernel/prerm.d/dkms 4.4.32-v7+ /boot/kernel7.img /etc/kernel/prerm.d/dkms: dkms: removing: rtl8812AU 4.3.22-beta (4.4.32-v7+) (armv7l)

-------- Uninstall Beginning -------- Module: rtl8812AU Version: 4.3.22-beta Kernel: 4.4.32-v7+ (armv7l)

Status: Before uninstall, this module version was ACTIVE on this kernel.

8812au.ko:

• Uninstallation
  • Deleting from: /lib/modules/4.4.32-v7+/updates/dkms/
• Original module
  • No original module was found for this module on this kernel.
  • Use the dkms install command to reinstall any previous module version.

depmod.....

DKMS: uninstall completed.

---

Deleting module version: 4.3.22-beta completely from the DKMS tree.

Done.

dkms status is empty. So as result, I need to do every time all the steps to add the module to DKMS, compile and load it.

[jeremyb31]

Hi fumantsu, After a new kernel is installed check modinfo 8812au And see if the filename kernel version and the vermagic version match, if they don't See if my fork with an updated dkms.conf file works for you https://github.com/jeremyb31/rtl8812AU

[fumantsu]

I will check it as soon a new kernel version is out. From my experience I try to avoid to do the major RPI firmware upgrade as I need to find the package or the tarball for the kernel headers. This sometimes is pain in the ass so I prefer official raspbian kernel updates

[ghost]

The same issue happens on Kali (based on debian testing) when it updated from 4.8 to 4.9. Probably happens on any other debian-based distro.

[fumantsu]

Ok, today I update the kernel. These are the logs. Kernel before update: 4.4.38-v7+ During upgrade: run-parts: executing /etc/kernel/prerm.d/dkms 4.4.38+ /boot/kernel.img /etc/kernel/prerm.d/dkms: dkms: removing: rtl8812AU 4.3.22-beta (4.4.38+) (armv7l)

-------- Uninstall Beginning -------- Module: rtl8812AU Version: 4.3.22-beta Kernel: 4.4.38+ (armv7l)

After: run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.48+ /boot/kernel.img run-parts: executing /etc/kernel/postinst.d/dkms 4.4.48+ /boot/kernel.img /etc/kernel/postinst.d/dkms: Error! Bad return status for module build on kernel: 4.4.48+ (armv7l) Consult /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log for more information. run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.48+ /boot/kernel.img run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.48-v7+ /boot/kernel7.img run-parts: executing /etc/kernel/postinst.d/dkms 4.4.48-v7+ /boot/kernel7.img /etc/kernel/postinst.d/dkms: Error! Bad return status for module build on kernel: 4.4.48-v7+ (armv7l) Consult /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log for more information. run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.48-v7+ /boot/kernel7.img Setting up libraspberrypi-bin (1.20170215-1) ... Setting up raspberrypi-kernel-headers (1.20170215-1) ... run-parts: executing /etc/kernel/header_postinst.d/dkms 4.4.48+ Error! Bad return status for module build on kernel: 4.4.48+ (armv7l) Consult /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log for more information. run-parts: executing /etc/kernel/header_postinst.d/dkms 4.4.48-v7+ Error! Bad return status for module build on kernel: 4.4.48-v7+ (armv7l) Consult /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log for more information. root@pi-router:/tmp# cat /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log DKMS make.log for rtl8812AU-4.3.22-beta for kernel 4.4.48-v7+ (armv7l) Wed Mar 1 19:15:45 CET 2017 make ARCH=arm CROSS_COMPILE= -C /lib/modules/4.4.38-v7+/build M=/var/lib/dkms/rtl8812AU/4.3.22-beta/build modules make[1]: *** /lib/modules/4.4.38-v7+/build: No such file or directory. Stop. Makefile:1705: recipe for target 'modules' failed make: *** [modules] Error 2

So looks that dkms tried to recompile modules to the 4.4.48-v7+ using libraries from the previous version. Maybe takes as parameter on the CROSS_COMPILE the current version from some 'uname -r'.

After restart running /usr/lib/dkms/dkms_autoinstaller start 4.4.48-v7+ (part of /etc/kernel/header_postinst.d/dkms 4.4.48+) everything ok.

[jeremyb31]

fumantsu Where those results using the source from this github or mine? Either way, it would be interesting to see

cat /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log

if the original file from the failure still exists

[fumantsu]

Well I'm not cloning the git. Just got the zip if I remember correctly some time ago

cat /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log DKMS make.log for rtl8812AU-4.3.22-beta for kernel 4.4.50-v7+ (armv7l) Sun Mar 5 10:08:28 CET 2017 make ARCH=arm CROSS_COMPILE= -C /lib/modules/4.4.48-v7+/build M=/var/lib/dkms/rtl8812AU/4.3.22-beta/build modules make[1]: *** /lib/modules/4.4.48-v7+/build: No such file or directory. Stop. Makefile:1705: recipe for target 'modules' failed make: *** [modules] Error 2

On Wed, Mar 8, 2017 at 10:54 PM, jeremyb31 [email protected] wrote:

fumantsu Where those results using the source from this github or mine? Either way, it would be interesting to see

cat /var/lib/dkms/rtl8812AU/4.3.22-beta/build/make.log

if the original file from the failure still exists

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-- Thank you Alexandros