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Pelagicore / meta-pelux

PELUX is an open source, GENIVI compliant development platform that supports the Qt Automotive Suite
https://pelux.io
MIT License
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/etc/defaults/neptune: Change XDG_RUNTIME_DIR #430

Closed JEderonn closed 4 years ago

JEderonn commented 4 years ago

There is a change in Qt 5.14, where the XDG_RUNTIME_DIR cannot be /tmp since the permission for that dir is not read-only for the current user (i.e. root). The default value of XDG_RUNTIME_DIR as defined in meta-boot2qt is /run/user/0 so let's use this also.

TODO: Consider to reuse the default Qt config as defined in the boot2qt addons and only apply modifications applicable for PELUX.

Signed-off-by: Johan Ederonn jederonn@luxoft.com

JEderonn commented 4 years ago

Some more information (e.g. error message, where in Qt the problem is or e.g. a reference to a Git commit in Qt/meta-boot2qt that might have more info) would be nice to be able to verify. The commit message now seems a bit strange to me without this.

I have added the generated log and the hash in qtbase where the change was made.

E.g. I do not think it makes sense for XDG_RUNTIME_DIR to be read-only. Is this a typo? Looking up what the spec, https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html , says I think it is. Or what is going on?

The commit message states "Conform to XDG Base Directory Specification". Note that I was wrong in the commit message, it's not read-only. My mistake.

Btw, when is /run/user/0 created now and by whom? (Normally done by logind on a "normal" Linux system, I think, ... or some other login manager if systemd is not used... but it is not run in PELUX, nor do we create a session for Neptune.) I assume you have tested this after a clean boot and not created the directory manually and just restarted Neptune?

I have not analyzed who creates the dir. But yes, I have tested this on clean boot. This is also how the boot2qt distro is setup.