Merging changes from partition 2 into partition 1

samo on altern.org jan-2008: it is possible to do the above even after heavy changes are done to the original filesystem – i.e. lots of work, package additions/removals etc (not at all virgin state) – and still get everything right (and keep the original partition/filesystem instead of making all new). Roughly the steps are as follows (requires some unix skills. Read this entire section before starting and ensure you know what you’re doing):

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