Notes on installing openSUSE Leap 42.1
Installation stalls due to addition of repositories
If you selected the options to Add Online Repositories Before Installation and Include Add-on Products from Separate Media during the installation process using the openSUSE Leap 42.1 DVD, the setup process might stall midway.
To resolve this issue, reboot the system and when you start installation again, make sure both options are clear, which is the default setting.
No access to openSUSE media during update (GUI or Terminal)
As with previous releases of openSUSE, if you installed openSUSE using the DVD, the physical media is added as a software repository. If you run updates or attempt to install software, the system checks for the media, which results in an error message if you removed the DVD from the optical drive (or disconnected the LiveUSB).
Remove the entry by launching Software Repositories in YaST.
Click YaST > Software Repositories and select the item referring to your optical drive/installation media. Click Delete.
Network settings during installation
Unlike other mainstream distributions, the installation process for openSUSE Leap 42.1 includes more advanced options for setting up your network. To set up a Wi-Fi connection, you edit the Wireless card, scan for networks, select the security type and input the hex or passphrase. You can also input hostname, static IP address and configure IP addressing.
Unless your network set up requires it, or you have a network scheme already in place, home users can safely skip this step. Installation is much faster for users and the possibility of network errors on first boot is reduced if they skip advanced network settings during setup. A Wi-Fi or PPPoE connection can be configured from the KDE desktop after installation is complete.
Flash is no longer included on first YaST update
In previous openSUSE releases, Adobe Flash was installed when you ran an online YaST update for the first time. However, this no longer seems to apply for openSUSE Leap 42.1.
Although Flash support is actively being removed by many vendors, it's still remarkably ubiquitous despite its flaws. The last release of Flash for Linux (.rpm) can still be found online, if it's a requirement for your set up.