reboot mac Yosemite in mac which installed Ubuntu right now

[lin_zhao]

Hi, I just boot Ubuntu in my macbook pro (10,1)that is replace original Yosemite by mistake.
I am supposed to dual-boot Yosemite and Ubuntu in my macbook pro.
Could any one give me suggestion so that I can boot Yosemite back in my mac.

[mfox]

You can restore Yosemite from a Time Machine backup if you have one. Or if you have another Mac, you can connect your MBP to the other Mac using Firewire Target Drive, so that the drive of your MBP appears on the desktop of the other one one. Then, go to the App Store, sign in with your account, download the Yosemite installer and reinstall it on the MBP hard drive. If you have easy access to an Apple Store, make an appointment and get them to help you.

[lin_zhao]

thanks