When running veeam agent for linux free on a freshly intalled oracle linux with uek kernel machine I got the error:
[error] Neither [blksnap] nor [veeamsnap] module was found
I'v discovered that the blksnap module not was loaded, it had an error at compilation time, this error was due to the fact that installing veeam through dnf installed dependend kernel-devel package, but the package needed to compile this module on this kind of installations is kernel-uek-devel.
In order to get veeam running execute:
dnf install kernel-uek-devel -y