[opensuse] zypper dup via iso file from old 11.2 to 12.1 (x86)?

Hello. Zypper can add iso files as repo. Can I simply go for a zypper dup (zypper in zypper maybe first?) via the downloaded .iso image file of 12.1(x86) on my running old 11.2 system? Or is it better to boot via 12.1 media and taking the system offline? Or is zypper able to handle all those changes just fine by now via dup? Thanks. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org