kernel-module-injector can't install drbd

[Icedroid]

In CentOS 7 I have already installed elfutils-libelf-devel, but I meet the error:

Need a git checkout to regenerate drbd/.drbd_git_revision
make[1]: Entering directory `/tmp/pkg/drbd-9.1.15/drbd'

    Calling toplevel makefile of kernel source tree, which I believe is in
    KDIR=/lib/modules/4.18.0-3.3.el7.x86_64/build

make -C /lib/modules/4.18.0-3.3.el7.x86_64/build   M=/tmp/pkg/drbd-9.1.15/drbd  modules
Makefile:978: *** "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel".  Stop.
make[1]: *** [kbuild] Error 2
make[1]: Leaving directory `/tmp/pkg/drbd-9.1.15/drbd'
make: *** [module] Error 22023-08-02T16:21:19.397830136+08:00 

Could not find the expexted *.ko, see stderr for more details

[WanzenBug]

In CentOS 7

Whatever you have there, it's not the standard CentOS 7 kernel. Maybe try the CentOS 8/ AlmaLinux 8 injector instead, as that at least also runs on kernel 4.18.0?

[tuupola]

Same problem with fresh install on Rocky Linux 8 which has elfutils-libelf-devel is installed.

Need a git checkout to regenerate drbd/.drbd_git_revision
2023-08-16T16:51:59.828799519+03:00 make[1]: Entering directory '/tmp/pkg/drbd-9.2.4/drbd'
2023-08-16T16:51:59.831456829+03:00 
2023-08-16T16:51:59.831463688+03:00     Calling toplevel makefile of kernel source tree, which I believe is in
2023-08-16T16:51:59.831466093+03:00     KDIR=/lib/modules/4.18.0-477.21.1.el8_8.x86_64/build
2023-08-16T16:51:59.831470987+03:00 
2023-08-16T16:51:59.833659046+03:00 make -C /lib/modules/4.18.0-477.21.1.el8_8.x86_64/build   M=/tmp/pkg/drbd-9.2.4/drbd  modules
2023-08-16T16:52:00.133613673+03:00 Makefile:1006: *** "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel".  Stop.
2023-08-16T16:52:00.133727303+03:00 make[1]: *** [Makefile:134: kbuild] Error 2
2023-08-16T16:52:00.133745626+03:00 make[1]: Leaving directory '/tmp/pkg/drbd-9.2.4/drbd'
2023-08-16T16:52:00.133759171+03:00 make: *** [Makefile:126: module] Error 2
2023-08-16T16:52:00.135616591+03:00 
2023-08-16T16:52:00.135622118+03:00 Could not find the expexted *.ko, see stderr for more details

[WanzenBug]

You are using the wrong loader image. The dockerfile already includes that package: https://github.com/piraeusdatastore/piraeus/blob/master/dockerfiles/drbd-driver-loader/Dockerfile.almalinux8#L7C56-L7C56

[tuupola]

It would be nice if also Rocky Linux was autodetected in the configmap. I was able to make it work by changing the fallback image to drbd9-centos8. I am using the Kustomize deploy.

        image: drbd9-centos8 # Fallback image: chose a fairly recent kernel, which can hopefully compile whatever config is actually in use
        match:
          - osImage: CentOS Linux 7
            image: drbd9-centos7
          - osImage: CentOS Linux 8
            image: drbd9-centos8

After above I still had the following problem.

2023-08-16T18:40:33.222598958+03:00 insmod: ERROR: could not insert module ./drbd.ko: Required key not available
2023-08-16T18:40:33.227236563+03:00 insmod: ERROR: could not insert module ./drbd_transport_tcp.ko: Required key not available

This was fixed by disabling secure boot from BIOS. Everything ok now.

[WanzenBug]

Feel free to open a pull request, adding new entries to the match: section. The osImage value is used to match against the nodes' osImage value. You can check that by running:

kubectl get nodes -ocustom-columns=osImage:'.status.nodeInfo.osImage'

[Theoi-Meteoroi]

I've just installed on ROS8 4.18.0-513.24.1.el8_9.x86_64 with operator 2.5.2

"dnf install kernel-headers-$(uname -r)" is all I've ever had to run on my nodes to install the operator, substituting YUM for dnf on CentOS7.

[WanzenBug]

I'll close this for now, as the original issue seems to be related to a custom CentOS 7 kernel, and Rocky Linux is now recognized and thus a "supported" platform.