modprobe: ERROR: could not insert 'videodev': Required key not available

[junjun55]

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Required Info
Camera Model	{ R200 / F200 / SR300 / ZR300 / D400 }
Firmware Version	(Open RealSense Viewer --> Click info)
Operating System & Version	Ubuntu 16.04.6 LTS
Kernel Version (Linux Only)	4.15.0-34-generic
Platform	PC lenovo G470
SDK Version	Intel® RealSense™ SDK 2.0 (build 2.18.1)

Issue Description

<Describe your issue / question / feature request / etc..>

I install it follow the https://github.com/IntelRealSense/librealsense/blob/master/doc/installation.md
When I run the scripts: ./scripts/patch-realsense-ubuntu-lts.sh
occurred follow problems:

Patched kernels modules were created successfully
Replacing videodev :
Applying the patched module ... modprobe: ERROR: could not insert 'videodev': Required key not available
Failed to insert the patched module. Operation is aborted, the original module is restored
Verify that the current kernel version is aligned to the patched module version
The original videodev module was reloaded

But I think my kernel version is supported .
uname -r
4.15.0-34-generic
How can I solve this problems? thanks.

[ev-mp]

@junjun55,
The reported error may indicate that the UEFI secure boot in activated on your PC.
Please follow #2815, #1641 to disable this feature, then reapply the patches/dkms and update.

[ev-mp]

@junjun55 , any update ?

[junjun55]

@junjun55 , any update ?

Yes, I have solved my question according your suggestion.I reboot PC and (Press F2)disable the secure boot and run the scripts: ./scripts/patch-realsense-ubuntu-lts.sh then the screen print follow context: (input y -enter y-enter until installing success)
Reversed (or previously applied) patch detected! Assume -R? [n] y
patching file drivers/media/v4l2-core/v4l2-ioctl.c
patching file include/uapi/linux/videodev2.h
Applying realsense-metadata patch
patching file drivers/media/usb/uvc/uvc_driver.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
Hunk #1 succeeded at 2734 (offset -37 lines).
patching file drivers/media/usb/uvc/uvc_video.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
Hunk #1 succeeded at 1227 (offset 5 lines).
Hunk #2 succeeded at 1260 (offset 5 lines).
patching file drivers/media/usb/uvc/uvcvideo.h
Reversed (or previously applied) patch detected! Assume -R? [n] y
Hunk #1 succeeded at 165 (offset -22 lines).
Hunk #2 succeeded at 186 (offset -22 lines).
Applying realsense-hid patch
patching file drivers/iio/accel/hid-sensor-accel-3d.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
patching file drivers/iio/gyro/hid-sensor-gyro-3d.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
Applying realsense-powerlinefrequency-fix patch
.....

[ev-mp]

@junjun55,
This logs suggests that you're applying patches when these were already applied.
This may occur if git repo has been corrupted, or the patches scripts has been aborted.

Please try the following methods:
1 Browse to the ubuntu-xenial-<your_ubuntu_flavor> folder that should be found in the librealsense's root dir.
2. Run git reset --hard and git pull to make it up-to-date.
3. Rerun the patches script.

In case the above still fails, then rename the ubuntu-xenial-<...> folder and rerun the patches script

[ev-mp]

Hi @junjun55 , is this has been resolved for you ?

[junjun55]

Hi @junjun55 , is this has been resolved for you ?

Sorry, my expression is not clear. My last reply means I had solved the question after enter y .....In the end ，it was installed successfully.
the screen print follow context: (that is not error)
Reversed (or previously applied) patch detected! Assume -R? [n] y
patching file drivers/media/v4l2-core/v4l2-ioctl.c
patching file include/uapi/linux/videodev2.h
Applying realsense-metadata patch
patching file drivers/media/usb/uvc/uvc_driver.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
Hunk #1 succeeded at 2734 (offset -37 lines).
patching file drivers/media/usb/uvc/uvc_video.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
Hunk #1 succeeded at 1227 (offset 5 lines).
Hunk #2 succeeded at 1260 (offset 5 lines).
patching file drivers/media/usb/uvc/uvcvideo.h
Reversed (or previously applied) patch detected! Assume -R? [n] y
Hunk #1 succeeded at 165 (offset -22 lines).
Hunk #2 succeeded at 186 (offset -22 lines).
Applying realsense-hid patch
patching file drivers/iio/accel/hid-sensor-accel-3d.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
patching file drivers/iio/gyro/hid-sensor-gyro-3d.c
Reversed (or previously applied) patch detected! Assume -R? [n] y
Applying realsense-powerlinefrequency-fix patch

[ev-mp]

@junjun55 , In your response you seem to repost the original message but do not provide any new info - did you follow the instructions suggested above, performed reset/rename of the ubuntu-xenial-<...> folder and installed the patches successfully ?

Please elaborate the actual steps performed and their outcome.

[RealSenseCustomerSupport]

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@junjun55 Is the issue resolved? Looking forward to your update. Thanks!

[RealSenseCustomerSupport]

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@junjun55 Any update?

[RealSenseCustomerSupport]

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@junjun55 If no other questions, will close the ticket accordingly. Thanks!