kernel module failed to build [ Bad return status for module build on kernel: 5.8.0-25-generic (x86_64)]

[Ayush Kumar]

While installing Nvidia-340 driver, I am getting the following error.

Setting up nvidia-340 (340.108-0ubuntu5) ...
dpkg: error: version '-' has bad syntax: revision number is empty
dpkg: error: version '-' has bad syntax: revision number is empty
dpkg: error: version '-' has bad syntax: revision number is empty
update-initramfs: deferring update (trigger activated)
INFO:Enable nvidia-340
DEBUG:Parsing /usr/share/ubuntu-drivers-common/quirks/lenovo_thinkpad
DEBUG:Parsing /usr/share/ubuntu-drivers-common/quirks/put_your_quirks_here
DEBUG:Parsing /usr/share/ubuntu-drivers-common/quirks/dell_latitude
Removing old nvidia-340-340.108 DKMS files...
Loading new nvidia-340-340.108 DKMS files...
Building for 5.8.0-25-generic
Building for architecture x86_64
Building initial module for 5.8.0-25-generic
Error! Bad return status for module build on kernel: 5.8.0-25-generic (x86_64)
Consult /var/lib/dkms/nvidia-340/340.108/build/make.log for more information.
dpkg: error processing package nvidia-340 (--configure):
 installed nvidia-340 package post-installation script subprocess returned error exit status 10
Processing triggers for libc-bin (2.32-0ubuntu3) ...
Processing triggers for initramfs-tools (0.137ubuntu12) ...
update-initramfs: Generating /boot/initrd.img-5.8.0-25-generic
Errors were encountered while processing:
 nvidia-340
E: Sub-process /usr/bin/dpkg returned an error code (1)

[Ayush Kumar (thelivingdodo001)]

Forgot to specify some things.
Operating system: Ubuntu 20.10
Kernel: 5.8.0-25-generic
GPU card: g-105m

[Leonardo (leoen25demayo)]

Hello, I'm the same. I started researching and tried:
sudo dkms --verbose build -m nvidia-340 -v 340.108
and it returned the same error.

Since I still have an old kernel installed I tried:
sudo dkms --verbose build -m nvidia-340 -v 340.108 -k 5.4.0-26-generic

and it worked perfect, just for that kernel.

I don't have much knowledge, and I don't know where the error can be with the 5.8.0-25-generic kernel.

Note: I just upgraded Ubuntu to Groovy, everything worked fine except nvidia-340.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Leonardo (leoen25demayo)]

I tried:

cd /usr/src/linux-headers-5.8.0-25-generic
sudo make oldconfig

   YACC scripts / kconfig / parser.tab. [Ch]
   HOSTCC scripts / kconfig / lexer.lex.o
   HOSTCC scripts / kconfig / parser.tab.o
   HOSTCC scripts / kconfig / preprocess.o
   HOSTCC scripts / kconfig / symbol.o
   HOSTCC scripts / kconfig / util.o
   HOSTLD scripts / kconfig / conf
scripts / kconfig / conf --oldconfig Kconfig
#
# configuration written to .config
#

And later:
sudo make prepare

    scripts / kconfig / conf --syncconfig Kconfig
    make [1]: *** There is no rule to build the target 'arch / x86 / tools / relocs_32.c', necessary for 'arch / x86 / tools / relocs_32.o'. High.
    make: *** [arch / x86 / Makefile: 211: archscripts] Error 2

Is it here the bug?