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lampik
Sep 7, 2013, 08:07 PM
hello,
i removed and formated mac partition, i dont have any backup , now i stck.

Can anyone help me to install a mac os x system in to my macbook pro retina ?

i have a windows pc handy..



Nermal
Sep 7, 2013, 08:08 PM
Reboot and hold Cmd-Opt-R at the chime to get into Internet Recovery. You can reinstall from there.

lampik
Sep 7, 2013, 08:28 PM
fine thats i known but i downloaded 10.9 but it holds on apple sign. and dont wont go further...

any ideas ?

simsaladimbamba
Sep 7, 2013, 08:33 PM
fine thats i known but i downloaded 10.9 but it holds on apple sign. and dont wont go further...

any ideas ?

Do you not have any kind of backup or restore media you could use?

I guess you have a newer Mac, that already came with OS X 10.8 Mountain Lion?

Luap
Sep 7, 2013, 08:33 PM
fine thats i known but i downloaded 10.9 but it holds on apple sign. and dont wont go further...

any ideas ?

10.9? You must be a developer then. Contact Apple.

pmau
Sep 7, 2013, 08:44 PM
fine thats i known but i downloaded 10.9 but it holds on apple sign. and dont wont go further...

any ideas ?

When you installed the Developer Preview of Mavericks it also updated your recovery partition. Since Mavericks is not yet available in the App Store, online recovery will start working again when Mavericks has been released...

Nermal
Sep 7, 2013, 09:03 PM
If recovery tried to install 10.9 then you were pressing Cmd-R, not Cmd-Opt-R.

gwang73
Sep 7, 2013, 11:15 PM
Right. CMD-R boots from the hidden partition. CMD-OPT-R boots from the EFI and downloads the original OS came with your MBP.