Unable to launch game in Fedora

[brlin-tw]

Snap not installed with core core snap.

$ snap run mari0
Error: Could not initialize SDL joystick subsystem (Could not initialize UDEV)
stack traceback:
	[string "boot.lua"]:637: in function <[string "boot.lua"]:633>
	[C]: at 0x7f37a7574c3b
	[C]: in function 'require'
	[string "boot.lua"]:416: in function <[string "boot.lua"]:311>
	[C]: in function 'xpcall'
	[string "boot.lua"]:645: in function <[string "boot.lua"]:639>
	[C]: in function 'xpcall'

[brlin-tw]

After installing the core snap the error turns to:

$ snap run mari0
execl failed: No such file or directory
child exited with status 1

$ env SNAP_CONFINE_DEBUG=yes snap run mari0
DEBUG: security tag: snap.mari0.mari0
DEBUG: executable:   /usr/lib/snapd/snap-exec
DEBUG: confinement:  non-classic
DEBUG: base snap:    core18
DEBUG: ruid: 1000, euid: 0, suid: 0
DEBUG: rgid: 1000, egid: 0, sgid: 0
DEBUG: creating lock directory /run/snapd/lock (if missing)
DEBUG: opening lock directory /run/snapd/lock
DEBUG: opening lock file: /run/snapd/lock/.lock
DEBUG: sanity timeout initialized and set for 30 seconds
DEBUG: acquiring exclusive lock (scope (global), uid 0)
DEBUG: sanity timeout reset and disabled
DEBUG: ensuring that snap mount directory is shared
DEBUG: unsharing snap namespace directory
DEBUG: releasing lock 4
DEBUG: opened snap-update-ns executable as file descriptor 4
DEBUG: opened snap-discard-ns executable as file descriptor 5
DEBUG: creating lock directory /run/snapd/lock (if missing)
DEBUG: opening lock directory /run/snapd/lock
DEBUG: opening lock file: /run/snapd/lock/mari0.lock
DEBUG: sanity timeout initialized and set for 30 seconds
DEBUG: acquiring exclusive lock (scope mari0, uid 0)
DEBUG: sanity timeout reset and disabled
DEBUG: initializing mount namespace: mari0
DEBUG: forked support process 5546
DEBUG: block device of snap core18, revision 731 is 7:0
DEBUG: sanity timeout initialized and set for 30 seconds
DEBUG: DEBUG: helper process waiting for command
joining preserved mount namespace for inspection
DEBUG: sanity timeout initialized and set for 30 seconds
DEBUG: block device of the root filesystem is 7:0
DEBUG: sanity timeout reset and disabled
DEBUG: preserved mount namespace can be reused
DEBUG: joined preserved mount namespace mari0
DEBUG: moved process 5538 to freezer cgroup hierarchy for snap mari0
DEBUG: joining preserved per-user mount namespace
DEBUG: unsharing the mount namespace (per-user)
DEBUG: sc_setup_user_mounts: mari0
DEBUG: performing operation: (disabled) use debug build to see details
DEBUG: calling snapd tool snap-update-ns
DEBUG: waiting for snapd tool snap-update-ns to terminate
main.go:246: DEBUG: desired mount profile:
main.go:248: DEBUG: 	/run/user/1000/doc/by-app/snap.mari0 /run/user/1000/doc none bind,rw,x-snapd.ignore-missing 0 0
change.go:469: DEBUG: desiredIDs: map[/run/user/1000/doc:true]
change.go:470: DEBUG: reuse: map[]
main.go:257: DEBUG: mount changes needed:
main.go:259: DEBUG: 	mount (/run/user/1000/doc/by-app/snap.mari0 /run/user/1000/doc none bind,rw,x-snapd.ignore-missing 0 0)
main.go:204: DEBUG: performing mount changes:
main.go:207: DEBUG: 	 * mount (/run/user/1000/doc/by-app/snap.mari0 /run/user/1000/doc none bind,rw,x-snapd.ignore-missing 0 0)
change.go:298: DEBUG: mount "/run/user/1000/doc/by-app/snap.mari0" "/run/user/1000/doc" "none" 4096 "rw" (error: <nil>)
main.go:246: DEBUG: current mount profile (after applying changes):
main.go:248: DEBUG: 	/run/user/1000/doc/by-app/snap.mari0 /run/user/1000/doc none bind,rw,x-snapd.ignore-missing 0 0
DEBUG: snap-update-ns finished successfully
DEBUG: NOT preserving per-user mount namespace
DEBUG: releasing lock 6
DEBUG: sending command 0 to helper process (pid: 5546)
DEBUG: waiting for response from helper
DEBUG: sanity timeout reset and disabled
DEBUG: helper process received command 0
DEBUG: helper process exiting
DEBUG: waiting for the helper process to exit
DEBUG: helper process exited normally
DEBUG: resetting PATH to values in sync with core snap
DEBUG: snappy_udev_init
DEBUG: setup_devices_cgroup
DEBUG: write_string_to_file /sys/fs/cgroup/devices/snap.mari0.mari0/tasks 5538
DEBUG: write_string_to_file /sys/fs/cgroup/devices/snap.mari0.mari0/devices.deny a
DEBUG: run_snappy_app_dev_add: /sys/class/mem/null snap_mari0_mari0
DEBUG: running snap-device-helper add snap_mari0_mari0 /sys/class/mem/null 1:3
execl failed: No such file or directory
child exited with status 1

[neteler]

For me (F29) this change helped to get snap running in general (didn't test here):

diff -u /usr/libexec/snapd/snap-device-helper.orig /usr/libexec/snapd/snap-device-helper
--- /usr/libexec/snapd/snap-device-helper.orig	2019-04-23 20:52:07.000000000 +0200
+++ /usr/libexec/snapd/snap-device-helper	2019-05-07 15:15:42.341304463 +0200
@@ -1,4 +1,4 @@
-#!/usr/bin/sh
+#!/bin/bash
 # udev callout to allow a snap to access a device node
 set -e
 # debugging

I got that from https://bugs.launchpad.net/snapd/+bug/1824158