If the DVD installer now downloads all packages online from the repositories if network is configured, then what’s the difference respect to the Netinstall image?
(And I say “now” because IIRC DVD installer didn’t do this until some few releases ago)
The installation procedure for each one is identical, just except that Netinstall obviously first checks for network and online repositories.
But if DVD can also connect to online repositories anyway, wouldn’t it be pointless to have 2 “redundant” image options?
When you provide a network connection to the online repos during installation, the newer versions of packages that are on the Update repos will be installed rather then the version on the DVD. That spares you the running of a zypper patch (or zypper up when you prefer), direct after the installation.
Naturally, ight after release of an openSUSE DVD there will not be much to install over the network from the Update repos. But the number of packages in the Update repos will grow over time.
I have not found that using online repositories necessarily installs newer packages. But you do gain access to a much larger repository of available packages than what can fit on a DVD. In other words, just because online repositories are online the installation repos by default won’t install latest packages. This means that unless you include the Update repository, you need to run a system update after your installation to be certain you’re updated… even if you used online repositories for your installation.
The Net install is a small download, typically about 1/8 the size of DVD.
For those who prefer the smaller download but without the repair capabilities and offline install option of the DVD, the Net install is preferred.