<html>Hi Everyone,<br /><br />I'm using Piraeus thus DRBD in my home k8s cluster which was running on CentOS 8 until Red Hat pulled its plug recently. After some evaluation of the available options, I decided to upgrade to the new rolling release CentOS Stream which only resulted in minor or patch-level changes in packages, however, my DRBD kernel-module-injector container stopped working.<br /><br />I opened the following ticket in the Piraeus repo with detailed information: https://github.com/piraeusdatastore/piraeus-operator/issues/137<br />There Joel told me the following:<br /><br />> It appears that Red Hat have made some changes in kernel version 4.18.0-257 which are not yet covered by the DRBD compatibility layer. In particular, they have removed the function blk_alloc_queue. I suggest you downgrade to a kernel version supported by DRBD, such as 4.18.0-240.<br /><br />I tried to downgrade the kernel package but dnf says there is no previous option to downgrade to.<br />Although I'm not a LINBIT customer, may I humbly ask for support of CentOS Stream with the new kernel version? If it takes a couple of weeks, I can wait as no mission critical workloads are depending on Piraeus in my case. However, I can also imagine more and more people upgrading to CentOS Stream, so they would also benefit, and eventually the new RHEL version will also get the new kernel.<br /><br />Kind regards,<br />Immánuel Fodor</html>