Description of problem:
1) Run Apper
2) Select all updates to install
3) Start installation process...walk away as the 433 packeages install (F24 - so as to be expected there are a few to do...frequently)
5) Check progress later and see that SELinux has blocked mkdir on /

How to reproduce? Not sure, other than to try to reinstall any availalbe updates and see if it happens again...
SELinux is preventing mkdir from 'write' accesses on the directory /.

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

If you believe that mkdir should be allowed write access on the  directory 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 mkdir --raw | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                system_u:system_r:system_mail_t:s0
Target Context                system_u:object_r:root_t:s0
Target Objects                / [ dir ]
Source                        mkdir
Source Path                   mkdir
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-158.12.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 4.4.6-300.fc23.x86_64 #1 SMP Wed
                              Mar 16 22:10:37 UTC 2016 x86_64 x86_64
Alert Count                   1
First Seen                    2016-04-14 22:43:33 PDT
Last Seen                     2016-04-14 22:43:33 PDT
Local ID                      7b660059-6611-4780-b731-b7ed596216fc

Raw Audit Messages
type=AVC msg=audit(1460699013.865:1597): avc:  denied  { write } for  pid=12689 comm="mkdir" name="/" dev="dm-1" ino=2 scontext=system_u:system_r:system_mail_t:s0 tcontext=system_u:object_r:root_t:s0 tclass=dir permissive=0


Hash: mkdir,system_mail_t,root_t,dir,write

Version-Release number of selected component:
selinux-policy-3.13.1-158.12.fc23.noarch

Additional info:
reporter:       libreport-2.7.0
hashmarkername: setroubleshoot
kernel:         4.5.2-302.fc24.x86_64
reproducible:   Not sure how to reproduce the problem
type:           libreport

Potential duplicate: bug 1046468