Unable to re-register Sentinel 8.2 appliance

Unable to re-register Sentinel 8.2 appliance due to unwanted entries at /etc/products.d location, namely the SLES.prod entry which should have been deleted with the migration utility after upgrading to SLES12SP3 8.2.0.0 or 8.2.0.1. 

Manually remove SLES.prod entry and make sure that baseproduct  is pointing to the respective prod file of the appliance.

1. Move the SLES.prod to /root location for backup. 

mv /etc/products.d/SLES.prod  /root

2. Make sure that the symbolic link is pointing to the appliance prod file.

         ln –s /etc/products.d/sentinel_server.prod   /etc/products.d/baseproduct    

(replace sentinel_server.prod with the respective .prod file of the appliance appears in the list)

After the above steps, the content of /etc/products.d  should look like the following:

ls –l /etc/products.d

lrwxrwxrwx 1 root root  36 Jan  8 23:50 baseproduct -> /etc/products.d/sentinel_server.prod

-rw-r--r-- 1 root root 531 Jan  8 23:50 sentinel_server.prod

-rw-r--r-- 1 root root 588 Feb 28  2014 slms.prod

Observed multiple unwanted entries at /etc/products.d location, for example:

-rw-r--r-- 1 root root 2917  May 4 15:29  SLES.prod

lrwxrwxrwx 1 root root    9   Oct 16 09:07  baseproduct -> sentinel_server.prod

-rw-r--r-- 1 root root  548   Jul 16 06:23  sentinel_server.prod

-rw-r--r-- 1 root root  616   May 9 2014  slms.prod