Re: F39 Change Proposal: Automatic Cloud Reboot on Updates (Self-Contained Change)
On Tue, May 30, 2023 at 07:57:12PM +0100, Aoife Moloney wrote:
https://fedoraproject.org/wiki/Changes/Automatic_Cloud_Reboot_On_Updates
== Summary ==
Cloud users can provide cloud-init metadata when creating a Fedora
cloud instance and that metadata can contain instructions to update
all packages on the system and reboot the system if any of those
updated packages need a reboot to go into effect. Fedora cloud
instances should write the `/var/run/reboot-required` file if a reboot
is needed after a dnf update so that cloud-init can reboot the
instance.
I'll add the same comment that I made in https://github.com/FrostyX/tracer/pull/196:
The correct location is /run, not /var/run. In most cases, this
doesn't matter greatly, because a compat symlink is provided, but when
/var is a separate partition, /var/run would only be accessible if
/var is mounted, i.e. rather late in boot. /run is always available.
/var/run is a compat symlink that should not be used (esp. in new code).
Stuff that is related to initial machine installation and such should
not force /var to be mounted.
Zbyszek