[root@lima01 ~]# rpm --upgrade /vol/cc/opt/maxeler/maxeleros-2018.2-2.el7.x86_64.rpm
pre-install maxeleros-2018.2-2.el7 2 /
Stopping MaxelerOS daemon:                                 [  OK  ]
Stopping MaxelerOS driver:                                 [  OK  ]
post-install maxeleros-2018.2-2.el7 2 /

Creating symlink /var/lib/dkms/maxeleros/2018.2-2.el7/source ->
                 /usr/src/maxeleros-2018.2-2.el7

DKMS: add completed.

Kernel preparation unnecessary for this kernel.  Skipping...

Building module:
cleaning build area...
make -j24 KERNELRELEASE=3.10.0-693.el7.x86_64 -C /lib/modules/3.10.0-693.el7.x86_64/build M=/var/lib/dkms/maxeleros/2018.2-2.el7/build...
cleaning build area...

DKMS: build completed.

maxeleros.ko.xz:
Running module version sanity check.
 - Original module
   - This kernel never originally had a module by this name
 - Installation
   - Installing to /lib/modules/3.10.0-693.el7.x86_64/extra/
Adding any weak-modules

depmod...

DKMS: install completed.
pre-uninstall maxeleros-2018.1-1.el7 1 /

-------- Uninstall Beginning --------
Module:  maxeleros
Version: 2018.1-1.el7
Kernel:  3.10.0-693.el7.x86_64 (x86_64)
-------------------------------------

Status: This module version was INACTIVE for this kernel.
depmod...

DKMS: uninstall completed.

------------------------------
Deleting module version: 2018.1-1.el7
completely from the DKMS tree.
------------------------------
Done.
post-uninstall maxeleros-2018.1-1.el7 1 /

Note: This output shows SysV services only and does not include native
      systemd services. SysV configuration data might be overridden by native
      systemd configuration.

      If you want to list systemd services use 'systemctl list-unit-files'.
      To see services enabled on particular target use
      'systemctl list-dependencies [target]'.

Starting MaxelerOS driver/daemon
Starting MaxelerOS driver:                                 [  OK  ]
Thu Aug 23 22:57:20 2018 !!! Error determining number of devices in system
Maxeler Error #64 - MaxelerOS loaded driver version (2018.1) differs from libmaxeleros version (2018.2)

Starting MaxelerOS daemon:                                 [FAILED]
Error loading MaxelerOS driver/daemon. Aborting.
warning: %postun(maxeleros-2018.1-1.el7.x86_64) scriptlet failed, exit status 1
[root@lima01 ~]#
[root@lima01 ~]# reboot
Connection to lima01 closed by remote host.
Connection to lima01 closed.