Description of problem:
After yum update, faxmaster receives the error message below via e-mail:

FATAL ERROR: /etc/hylafax/setup.cache is missing!


Version-Release number of selected component (if applicable):
hylafax+.x86_64                        7.0.3-1.el6                         @epel


How reproducible:
wait 1 week after yum update

Steps to Reproduce:
1. setup /etc and /var on separate devices
2. yum update hylafax
3.

Actual results:

FATAL ERROR: /etc/hylafax/setup.cache is missing!

The file /etc/hylafax/setup.cache is not present.  This
probably means the machine has not been setup using the faxsetup(8C)
command.  Read the documentation on setting up HylaFAX before you
startup a server system.



Expected results:
Facsimile transmitted since 08/21/20 03:18:

Sender           Pages  Calls      Time Pg/min  Errs TypRate TypData
--------------------------------------------------------------------
Total                0      0      0:00    0.0     0

Facsimile transmitted in the last seven days:

Sender           Pages  Calls      Time Pg/min  Errs TypRate TypData
--------------------------------------------------------------------
Total                0      0      0:00    0.0     0

Facsimile received since 08/21/20 03:18:

Sender          CIDName         CIDNumber       Pages     Time Pg/min Errs TypRate TypData
<UNSPECIFIED>                                       1     1:10    0.9    0   12000 2-D MMR
------------------------------------------------------------------------------------------
Total                                               1     1:10    0.9    0

Facsimile received in the last seven days:

Sender          CIDName         CIDNumber       Pages     Time Pg/min Errs TypRate TypData
...
------------------------------------------------------------------------------------------
Total                                               3     2:04    1.5    0

Report failed calls and associated session logs:

Nothing to purge in info directory.

Truncate merged session logs older than 30 days:

Nothing to purge in receive queue.

Nothing to purge in the tmp directory.


Additional info:

[root@frera:/etc] yum history info 376
Loaded plugins: fastestmirror, refresh-packagekit, security
Transaction ID : 376
Begin time     : Fri Aug 21 13:29:26 2020
Begin rpmdb    : 1460:f06cf097933b4c31ee30ce349493df3195b9e67c
End time       :            13:29:29 2020 (3 seconds)
End rpmdb      : 1460:c5e910e399d9213d4787fc9a1276d7954c0ef0af
User           : frera root <root>
Return-Code    : Success
Command Line   : -d 2 -y update
Transaction performed with:
    Installed     rpm-4.8.0-59.el6.x86_64                          @base
    Installed     yum-3.2.29-81.el6.centos.0.1.noarch              @updates
    Installed     yum-metadata-parser-1.1.2-16.el6.x86_64          @anaconda-CentOS-201112091719.x86_64/6.2
    Installed     yum-plugin-fastestmirror-1.1.30-42.el6_10.noarch @updates
Packages Altered:
    Updated hylafax+-7.0.1-1.el6.x86_64        @epel
    Update           7.0.3-1.el6.x86_64        @epel
    Updated hylafax+-client-7.0.1-1.el6.x86_64 @epel
    Update                  7.0.3-1.el6.x86_64 @epel
Scriptlet output:
   1 ln: creating hard link `/etc/hylafax/setup.cache' => `/var/spool/hylafax/etc/setup.cache': Invalid cross-device link
   2 ln: creating hard link `/etc/hylafax/setup.modem' => `/var/spool/hylafax/etc/setup.modem': Invalid cross-device link
history info

--------
Note: problem can be solved by using symbolic links

cd /etc/hylafax
ln -s /var/spool/hylafax/etc/setup.cache
ln -s /var/spool/hylafax/etc/setup.modem