I have Snow Leopard on and external HDD. Is it possible to boot form the external drive, and install Mavericks on the internal drive via the Mac App Store?
MacOS – Upgrade to Mavericks from an external HDD
external-diskmacossnow leopardupgrade
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Best Answer
Yes this is entirely possible. Download Mavericks from the Mac App Store and in the install process select your internal disk as the destination for the install.