[openFATE 307546] extract base system from a tar archive

Feature added by: Marvin FourtyTwo (marvin24) Feature #307546, revision 1 Title: extract base system from a tar archive openSUSE-11.3: Unconfirmed Priority Requester: Neutral Requested by: Marvin FourtyTwo (marvin24) Description: for new installations, some time can be saved if the basesystem (the part of openSUSE which is independend of the software selection) is extracted from an archive instead of allways installing the same packages everywhere. -- openSUSE Feature: https://features.opensuse.org/307546