Mavericks Download – update your Mac OS – X version
This is the easy way that you can use for install Mavericks without keeping any backups of previous Mac OS X version. You do not need any backup because you have an empty volume to install the OS. The main advantage of this method is you can install Mavericks download with exiting startup drive while it is booting. Also, this method doesn’t need much time to complete the installation process.
When you are using this method to install the Mavericks download, please keep a backup of your previous OS file and application data. Otherwise, you do not be able to use those applications and file after the installation of the new OS X version. You need to create a bootable USB installer which has the Mavericks installer software on it.
There are many tools and applications for backing up the Mac OS X before upgrading. So you must choose the best tool for backup the previous OS’s data. Basically, those kinds of tool is using for clone backup. After the process of backing up, you can ensure the process by checking system preferences and go to startup disk pane and booting the backed up device.
As I mentioned above there are a number of tools and application for backing up Mac OS X. But all the tools may not be able to do the backup task correctly. We can name some tools for clone backup.
Mac Backup Guru, SuperDuper, Carbon Copy Cloner, you can use those tools for Mavericks and clone backup the Mac OS X.
iMac ( After 2006 iMac versions), Mac Book and Mac Book Black/White (the year 2008 and 2009 upwards), All Mac Book Retina Models, Mac Book Pro 15 inch, Mac Book Pro 17 inch, Mac Mini (2007 or later), Mac Book Air 2008 or later, Mac Pro (2008 or later), Mac Book Pro 13 inch (2009 or later), Xserve (2009)
2 GB of RAM, 8 GB storage, OS X 10.6.8 Snow Leopard