Hello,
First, let me express how excited I am by the news of the CentOS Stream offering. I am really looking forward to how this works out in the long run.
I am in the group that builds VDO, and it is currently delivered as a kmod in CentOS Stream, RHEL, and CentOS. This requires that if the signatures of the symbols that VDO uses change from one kernel to the next, we may need to rebuild the package against the more recent kernel.
The current version of kmod-kvdo (6.2.0.293-50.el8) delivered in CentOS Stream is the equivalent of the RHEL-8.0/CentOS-8.0 GA, while the version of the kernel (4.18.0-144.el8) is newer. In the time between the kernel that kmod-kvdo was built against (4.18.0-72.el8) and the current kernel in CentOS Stream, the signatures have changed. As a result, the kernel modules delivered in the kmod-kvdo package cannot be loaded due to symbol mismatches (all device mapper related symbols that change periodically, from what I've experienced).
I believe that a simple rebuild of kmod-kvdo-6.2.0.293-50.el8 against kernel-4.18.0-144.el8 should be effective enough to get it working again.
How can I help facilitate this rebuild now and/or moving forward? I realize that things are still very much in motion and not fully implemented/decided at this point.
Andy Walsh