upgrade lion dev version to final?

[stefan1975]

since it seems lion will only be available as a #%@#% app store purchase it seems like i might have to skip this version, i'm not going to buy my OS as an upgrade app.

However all dev builds of lion come as installation images. So if i can get my hands on a pretty final dev build or R.C. ... will I be able to do a clean install with it and upgrade it to final when it is released?

that way i would at least have a near final lion clean install on my new SSD instead of a osx 10.6 > osx 10.6.8 > osx 10.7 install with the first two not supporting TRIM.

 

[Bear]

How do you know that what the Mac App Store gives you is upgrade only? There's a good chance it will be very similar in format to the DPs.

 

[Sky Blue]

The Developer Preview is from the App Store too. If you're so concerned about it, install 10.6 on an external drive and install Lion on the internal disc from there.

 

[DustinT]

It is currently possible to burn a dvd of the Lion DP 4 installer to disk. There is no reason to believe that won't continue under the GM version. Just burn the disk once you've downloaded it.

 

[Kahnyl]

I did a clean install yesterday. Went perfectly.