On Tue, Jul 30, 2019, at 4:13 PM, Zbigniew Jędrzejewski-Szmek wrote:
Please note that the cgroup hierarchy default remains as
"hybrid".
Upstream has switched the default to "unified", but I reverted this
switch in Fedora. If there are no major issues reported with this
pre-release, the next build will have "unified", as described in
https://fedoraproject.org/wiki/Changes/CGroupsV2.
That page currently says: "Upgraded machines will continue to work with CGroupsV1
unless the administrator changes the default."
But I don't see any mechanism in the stack to handle this - presumably it'd have
to be adding a new bootloader options for new installs, not flip the switch in systemd,
right?