apt-get install librealsense2-dkms won't build on 5.11.0 / 20.04

[dheera]

Removing old librealsense2-dkms-1.3.19 DKMS files...

------------------------------
Deleting module version: 1.3.19
completely from the DKMS tree.
------------------------------
Done.
Loading new librealsense2-dkms-1.3.19 DKMS files...
Building for 5.11.0-27-generic 5.15.0-52-generic
Building initial module for 5.11.0-27-generic
Error! Bad return status for module build on kernel: 5.11.0-27-generic (x86_64)
Consult /var/lib/dkms/librealsense2-dkms/1.3.19/build/make.log for more information.
dpkg: error processing package librealsense2-dkms (--configure):
 installed librealsense2-dkms package post-installation script subprocess returned error exit status 10
Errors were encountered while processing:
 librealsense2-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)

make.log contains:

DKMS make.log for librealsense2-dkms-1.3.19 for kernel 5.11.0-27-generic (x86_64)
Tue 15 Nov 2022 01:26:19 AM GMT
make: Entering directory '/usr/src/linux-headers-5.11.0-27-generic'
scripts/Makefile.build:44: /var/lib/dkms/librealsense2-dkms/1.3.19/build/5.11.0/drivers/media/usb/uvc/Makefile: No such file or directory
make[1]: *** No rule to make target '/var/lib/dkms/librealsense2-dkms/1.3.19/build/5.11.0/drivers/media/usb/uvc/Makefile'.  Stop.
make: *** [Makefile:1848: /var/lib/dkms/librealsense2-dkms/1.3.19/build/5.11.0/drivers/media/usb/uvc] Error 2
make: Leaving directory '/usr/src/linux-headers-5.11.0-27-generic'

The file /var/lib/dkms/librealsense2-dkms/1.3.19/build/5.11.0/drivers/media/usb/uvc/Makefile does not exist.
The file /var/lib/dkms/librealsense2-dkms/1.3.19/build/5.15.0/drivers/media/usb/uvc/Makefile DOES exist.

[MartyG-RealSense]

Hi @dheera A RealSense user at #5366 who experienced the Bad return status for module build on kernel error message found that the solution in their particular case was to reinstall everything on a clean Ubuntu installation.

You can remove all RealSense related DKMS packages from your computer with the command below:

dpkg -l | grep "realsense" | cut -d " " -f 3 | xargs sudo dpkg --purge

[EthanTwo2022]

Hello, I also encountered the same problem, is this because the kernel version is wrong? Because I noticed this "The Realsense [DKMS] kernel drivers package (librealsense2-dkms) supports Ubuntu LTS kernels 4.4, 4.8, 4.10, 4.13, 4.15, 4.18*, 5.0*, 5.3* and 5.4. Please refer to [Ubuntu Kernel Release Schedule] or further details." in "Linux Distribution".（https://github.com/IntelRealSense/librealsense/blob/master/doc/distribution_linux.md）

[MartyG-RealSense]

Hi @EthanTwo2022 Kernel 5.11 is supported for source code builds of the 2.51.1 librealsense SDK.

[MartyG-RealSense]

Hi @dheera and @EthanTwo2022 Do you require further assistance with this case, please? Thanks!

[MartyG-RealSense]

Case closed due to no further comments received.

[YXGuan]

Hi Marty,

I have received the same error. Tried removing all Realsense libraries but the same error persists.

Case closed due to no further comments received.

[MartyG-RealSense]

Hi @YXGuan Which computer / computing device are you installing librealsense from packages on, please (Raspberry Pi, Nvidia Jetson, desktop / laptop PC, etc). Thanks!

[YXGuan]

Hi @YXGuan Which computer / computing device are you installing librealsense from packages on, please (Raspberry Pi, Nvidia Jetson, desktop / laptop PC, etc). Thanks!

Thanks for your prompt response

Laptop Lenovo Carbon X1

Ubuntu 20.04

[YXGuan]

from /var/crash/librealsense2-dkms.0.crash:

ProblemType: Package
DKMSBuildLog:

 DKMS make.log for librealsense2-dkms-1.3.19 for kernel 5.14.0-1054-oem (x86_64)

 Sun 11 Dec 2022 03:20:14 PM EST

 make: Entering directory '/usr/src/linux-headers-5.14.0-1054-oem'

 scripts/Makefile.build:44: /var/lib/dkms/librealsense2-dkms/1.3.19/build/5.14.0/drivers/media/usb/uvc/Makefile: No such file or directory

 make[1]: *** No rule to make target '/var/lib/dkms/librealsense2-dkms/1.3.19/build/5.14.0/drivers/media/usb/uvc/Makefile'.  Stop.

 make: *** [Makefile:1870: /var/lib/dkms/librealsense2-dkms/1.3.19/build/5.14.0/drivers/media/usb/uvc] Error 2

 make: Leaving directory '/usr/src/linux-headers-5.14.0-1054-oem'

DKMSKernelVersion: 5.14.0-1054-oem

Date: Sun Dec 11 15:20:15 2022

Package: librealsense2-dkms 1.3.19-0ubuntu1

PackageVersion: 1.3.19-0ubuntu1

SourcePackage: librealsense2

Title: librealsense2-dkms 1.3.19-0ubuntu1: librealsense2-dkms kernel module failed to build

[MartyG-RealSense]

The librealsense SDK does not support kernel 5.14 unfortunately. It supports the kernels either side of it, 5.13 and 5.15.

https://github.com/IntelRealSense/librealsense/blob/master/doc/distribution_linux.md#using-pre-build-packages

If you are unable to change your kernel version then it is possible to bypass the kernel by building the SDK from source code with CMake using the RSUSB backend installation method, which is not dependent on Linux versions or kernel versions and does not need to have a kernel patch applied. Instructions for performing an RSUSB source code build can be found at #9931 (comment)

[YXGuan]

Will try

Thank you so much Marty!