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Before erasing the hard drive, make sure you have a minimum of two completely separate backups, on completely separate media, and preferably made with two different backup programs. That’s an extremely vulnerable state to be in. If you only have one backup, remember that when you erase your hard drive, those backups become the one-and-only copy of your data. So how do you do it right? Most importantly, make redundant backups. You must do it right, or you will risk losing data. However, any time you propose erasing your primary data storage, it becomes critical. Step 1: Back up!īacking up your data is something you should be doing on a regular basis – every single day, for most people. Fortunately, there are some easy steps you can take to do the job right.īefore I start, note that if you are trying to get the machine ready to sell, you should follow some slightly different directions. Further, if you do the job wrong, whatever problem you’re trying to solve may not even be solved. The possibility of data loss looms any time you erase your primary hard drive. Regardless of the reason, this is not something to be undertaken lightly. ![]() If the battery drains completely during a backup, the backup won’t be complete and may get corrupted.April 11th, 2013 at 11:11 AM EDT, modifiedįor whatever reason, you have decided that you want to reinstall the system from scratch, restoring your machine to an “out-of-the-box” state. By default, Time Machine will back up only when your laptop is connected to AC power, to ensure that your MacBook stays powered during the backup process. Go to Time Machine’s preferences, click Options, and select the Back up while on battery power option. The default setting is for the program to notify you when it has deleted an older backup, but if you don’t need this information, uncheck the box next to Notify after old backups are deleted in Time Machine’s preferences.īackup on battery power: If you’re a MacBook user, you can also choose to back up while using battery power. Several user have also reported instances where Time Machine crashed a VM session when it tried to perform a backup.Įrase older backups without interruption: When your external drive gets full, Time Machine will automatically erase older backups to make room for new ones. ![]() #Backup software for mac os x lion full#Backing up your virtual machine will quickly fill up your external hard drive, as Time Machine tends to perform a full backup of virtual machines each time instead of running a simple daily update. #Backup software for mac os x lion windows#VMware Fusion or Parallels Desktop, to run Windows on your Mac, we recommend excluding it from your Time Machine backups. If you use an external virtual machine, such as To save space on your backup drive, exclude items you don’t need to backup. You can change your mind about these at any time by selecting a file and clicking the minus-sign (-) button. In the large Exclude list, you’ll see the folders or individual files that you selected. From there, pick and choose the items you’d like to leave out, and click Exclude when you’re finished. Then click the plus-sign (+) button under the list labeled Exclude these items from backups. Go to the Time Machine preferences pane and click Options. A full system backup will begin immediately.Įxclude items you don’t need: If you don’t need to save some items-restaurant takeout menus in your Downloads folder, for example, or miscellaneous screenshots that live on your Desktop-you can select items to omit from your system’s regular backups. Your Mac will recognize the added hardware, and a window will appear, asking you whether you want to use the drive to back up with Time Machine. If you already know that your hard drive is compatible, just hook it up. #Backup software for mac os x lion how to#How to format a hard drive.” Step 3: Get set up for your first backup If not, you’ll have to reformat the drive: Click the Erase tab, choose Mac OS Extended (Journaled) from the Format pop-up menu, and click Erase. If the disk’s Format reads ‘Mac OS Extended (Journaled)’, you’re good to go. At the bottom of the window, you’ll see information about it. In the left-hand column of the Disk Utility window, select the disk that you want to designate as your Time Machine backup. If in doubt, connect the hard drive to your Mac and open OS X’s Disk Utility (in the /Applications/Utilities folder). Once you have an external drive, confirm that it’s properly formatted for the Mac. ![]()
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