Currently Being ModeratedJan 19, 2013 6:22 AM (in response to Roger Blunden)
As you can't install OS X Lion, you have to install Mac OS X from the Mac OS X DVD that came with your Mac or the Snow Leopard DVD, if you keep this disc.
1. Insert the DVD and press C key while your Mac is starting to start from the disc.
2. Follow the steps to reinstall Mac OS X. When it finishes, open > Software Update and install the most recent Mac OS X version.
3. If you installed Snow Leopard, after updating, you can see App Store, so open it, log in your Apple ID, go to Account (under Quick Links) > Show hidden purchases, and show Lion, if you purchased it.
4. Go to Purchases tab, download OS X Lion and follow the steps to install it.
If you didn't purchase Lion (I assume that you pirated it in this last case), continue using Snow Leopard
Currently Being ModeratedJan 19, 2013 7:03 AM (in response to mende1)
Thanks for the advice, but …
I start up the mac from either the original dvd or a snow leopard dvd.
The reinstall Mac OSX option only gives me the option to set up and install a new copy of Lion. It doesn't give me the option to reinstall snow leopard or the orginal macbook system.
It then checks and can't find an apple store purchase for Lion.
Currently Being ModeratedJan 19, 2013 7:05 AM (in response to Roger Blunden)
You aren't starting from the DVD. After inserting the DVD, press Option key while your Mac is starting and you should see two volumes: one for Recovery HD and the other one for the Mac OS X DVD. Select the Mac OS X disc and follow the steps of my first comment
Currently Being ModeratedJan 19, 2013 9:22 AM (in response to mende1)
Thanks again. I have now tried starting up with the option key held…
1. Using the original dvd that came with the MacBook - no destination disk appears at the beginning of the installation process.
2. Using Snow Leopard installation dvd, it gets part way through the installation and then a message
"OSX could not be installed on your computer. The installer could not copy the necessary support files".
3. I also have a Tiger installation DVD, but only the recovery HD appears at option-startup.
I think 1 and 2 probably relate to the fact that I replaced the original HD in my macbook. Perhaps now I have to try and find the original HD and put it back.
I do appreciate you taking the time to respond.