Description of problem:
SELinux is preventing (updatedb) from 'mount' accesses on the filesystem /.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that (updatedb) should be allowed mount access on the  filesystem by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# ausearch -c '(updatedb)' --raw | audit2allow -M my-updatedb
# semodule -X 300 -i my-updatedb.pp

Additional Information:
Source Context                system_u:system_r:init_t:s0
Target Context                system_u:object_r:usr_t:s0
Target Objects                / [ filesystem ]
Source                        (updatedb)
Source Path                   (updatedb)
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           filesystem-3.10-1.fc30.x86_64
Policy RPM                    selinux-policy-3.14.3-42.fc30.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 5.1.18-300.fc30.x86_64 #1 SMP Mon
                              Jul 15 15:42:34 UTC 2019 x86_64 x86_64
Alert Count                   1
First Seen                    2019-07-29 00:00:55 EDT
Last Seen                     2019-07-29 00:00:55 EDT
Local ID                      1e9fc3df-424b-461e-932d-d6d5c3012c2e

Raw Audit Messages
type=AVC msg=audit(1564372855.780:639): avc:  denied  { mount } for  pid=15388 comm="(updatedb)" name="/" dev="tmpfs" ino=440279 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=filesystem permissive=0


Hash: (updatedb),init_t,usr_t,filesystem,mount

Version-Release number of selected component:
selinux-policy-3.14.3-42.fc30.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.10.1
hashmarkername: setroubleshoot
kernel:         5.1.18-300.fc30.x86_64
type:           libreport