Minimal Set of Repositories

After basic install, multimedia install and vendor change to packman I arrived with the following list of repositories:

burgberg:~ # zypper  lr -U -E
#  | Alias                           | Name                                                    | Enabled | GPG Check | Refresh | URI                                                              
---+---------------------------------+---------------------------------------------------------+---------+-----------+---------+------------------------------------------------------------------
 1 | download.opensuse.org-non-oss   | Haupt-Repository (NON-OSS)                              | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/distribution/leap/42.1/repo/non-oss/
 3 | download.opensuse.org-oss       | Haupt-Repository (OSS)                                  | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/distribution/leap/42.1/repo/oss/    
 6 | openSUSE-42.1-0                 | openSUSE-42.1-0                                         | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/distribution/leap/42.1/repo/oss/    
 2 | download.opensuse.org-non-oss_1 | Aktualisierungs-Repository (Nicht-Open-Source-Software) | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/update/leap/42.1/non-oss/           
 4 | download.opensuse.org-oss_1     | Hauptaktualisierungs-Repository                         | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/update/leap/42.1/oss                
13 | repo-update                     | openSUSE-Leap-42.1-Update                               | Yes     | (r ) Yes  | Yes     | http://download.opensuse.org/update/leap/42.1/oss/               
 5 | dvd                             | dvd                                                     | Yes     | (r ) Yes  | Yes     | http://opensuse-guide.org/repo/openSUSE_Leap_42.1/               
 7 | packman                         | packman                                                 | Yes     | (r ) Yes  | Yes     | http://packman.inode.at/suse/openSUSE_Leap_42.1/                 
burgberg:~ # 

There are two pairs of confusing duplicate entries (3,6 and 4,13). Can one safely delete #6 and #13?

There are two pairs of confusing duplicate entries (3,6 and 4,13). Can one safely delete #6 and #13?

Yes, you can…

zypper rr 13
zypper rr 6

If command line (zypper) remember they get renumbered so remove the larger number first or at lease do a zypper lr -d between to verify the number.

Or you can remove from yast