Is Overlay2 the default storage driver on CentOS 7.5?

[brook]

Or is it installed by default and available for tools like Docker to use?

[brook]

Looks like it's not even on CentOS 7.5 as the kernel is only 3.10, whereas overlay2 is part of 3.18+

Is this right? :/

I may have confused it with overlayFS: viewtopic.php?f=47&t=63629&p=268391&hil ... ay#p267880

[TrevorH]

The CentOS kernel may say it's 3.10 but it contains many many backports from more recent kernels. Don't judge based on version number alone. Please see https://access.redhat.com/security/updates/backporting/ for information on backporting of security fixes and features in CentOS and RHEL

[brook]

Ah cool, thanks!