Installed Yosemite on main partition.. pls help :(

[macfannorway]

I was so stupid to download and install the public beta of Yosemite on my main drive, overwriting Mavericks.. I thought that it was easy to go back to mavericks after testing it a little.

Can anyone please tell me how i can install Mavericks again?

I don't have any TimeMachine backups, all my stuff is on external drives.

I have tried cmd+r when booting to get to the installer, but i can only install Yosemite again.

 

[daijholt]

Unless Yosemite has changed this, when you enter recovery mode you should be able to choose Internet Recovery, which downloads the software your mac originally came with. Last time I did it it downloaded mountain lion, and from there I just upgraded to mavericks again through the App Store.

ALSO: if you choose to install from your startup disk it will install the most recent version (I.e. Yosemite) while Internet Recovery downloads the entire original OS from Apple's server.

See here: http://support.apple.com/kb/HT4718

 

[dhlizard]

https://forums.macrumors.com/threads/1759672/

https://forums.macrumors.com/threads/1758726/

 

[macfannorway]

Thank you! Im now back on Mavericks

I used cmd+opt+r on startup, then i could install back to Mavericks

 

[azurexie]

Thank you! Im now back on Mavericks

I used cmd+opt+r on startup, then i could install back to Mavericks

Hey can you be more specific? Which option should I go after press d+opt+r on startup.?

And btw, will my files and programs still be there after the installation or every thing is just gone.?