XDG_RUNTIME_DIR is not set in the environment

[ehawman]

XDG_RUNTIME_DIR is not set in the environment

[emersion]

XDG_RUNTIME_DIR is required for Wayland to work. It's set by systemd, and needs to be set via other means on platforms without systemd: https://man.sr.ht/~kennylevinsen/seatd/#xdg_runtime_dir-not-set

[ehawman]

Raspberry Pi OS uses systemd and running echo $XDG_RUNTIME_DIR results in /run/user/1000, which indicates that it is being set in a normal environment. I'm attempting to diagnose the disconnect between the system's defined variable and cage's inability to see/use that variable.

[emersion]

Hm, weird.

Cage is creating a sandboxed window environment

No, cage is just an executable and simply calls getenv on startup:

cage/cage.c

Line 279 in e7d8780

/* Wayland requires XDG_RUNTIME_DIR to be set. */

Can you check whether cage is suid-root by any chance? If so, env vars would be reset on startup. Note that proper cage setups shouldn't use suid-root.

[ehawman]

You're asking about the permissions of /usr/bin/cage?
-rwxr-xr-x 1 root root 67592 Oct 12 2022 cage
I installed via sudo apt install cage. Version is 0.1.4.
My user is a sudoer but I'm not running the command with sudo.

[emersion]

Well, I don't know. Very unlikely that this is a Cage problem though.

[ehawman]

Hmmm ok. Thank you for looking at it.