How to Install Mac OS X in External Hard Disk
when more and more users have chosen to buy a Mac to install SSD hard drive model. SSD allows OS X to run more smoothly, but it 256G, 128G capacity, increasingly unable to meet people's needs. It's time for you to connect an external hard drive for Mac is a temporary solution. OS X good compatibility, making the vast majority of external hard drives are plug and play, no additional setup. But if you encounter some rare external hard drive, you can follow the steps described below to set about re-use.
After you get a new hard disk, you first need to consider is which file system to format the hard disk. We recommend that you use the FAT32: This is a is a number of (if not all) operating system supports file systems, Windows and OS X systems are able to read and write properly. If your external hard drive is often used take that FAT32 is your only choice. This file system also has its limitations: it is not the type of log file system also lacks support for user rights; It uses the MBR (Master Boot Record) to boot the system, and Apple is not compatible with the system. The defect makes it OS X comes with encryption system can not take effect in the FAT32 file system.
When you buy an external hard drive, the manufacturer may carry some drivers, management, and backup software. These software may offer some very convenient operation, but we do not recommend that you use it (if you are buying multiple hard drives installed, the hard disk with RAID function, or the need to install driver): OS X has built very convenient management tool to manage hard disks, and software vendors may have compatibility problems after OS X update, severe cases may lead to data loss.
Comprehensive look at several factors that we described above, external hard drives using RAID array if you buy, you need to install the drivers provided by manufacturers; If only one external hard disk, you can use the built-in OS X Disk Utility. If you need to use an external hard drive in Windows, need to use the FAT32 file system; just use an external hard drive in OS X, then, you can use Mac OS Extended (Journaled) file system.
Want to format the hard drive under Mac, simply connect an external hard drive to the Mac, and then open the "Disk Utility", according to the following steps:
1 .In the "Disk Utility" screen, select the hard disk you want to format. In order to avoid the wrong hard drive you choose "Disk Utility" lists the hardware manufacturer, hard drive size and other information to help you identify the hard disk.
2. Select the right of the "Partition" tab
3. In the "Volume Scheme" drop-down menu, select "partition" (if you need to put the hard drive into multiple partitions, select the number you want here). After selecting the number of partitions, the default file system is the "Mac OS Extended (Journaled)", if you want to use other file systems, be sure to select the correct file system, then the format operation
4 .Click on "Options", select the appropriate partition scheme. If you use FAT32, select "Master Boot Record"; other file systems, the use of "GUID" partition table
5 .Click "Apply" and wait for the progress bar to complete, the disk is formatted success
After formatting is complete, OS X will first uninstall the hard disk, and then use the new settings to re-mount the hard drive. If you are buying a new hard drive, perform these steps you can rest assured that use. If you need to check if the hard disk has physical bad sectors or other errors, you need to use third-party tools to complete.
Disk Utility also provides a very useful feature: "Erase Free Space." It can safely erase the data on the hard disk so that the data on the hard disk can not be recovered back. If you need to sell or destroy the hard drive, this feature allows your data to disappear without a trace: select the partition you want to erase, then click on "Erase" tab, select "Erase Free Space", which provides "Zero Out Data", "7-Pass Erase" and "35-Pass Erase" three options, corresponding to "0 is used to cover the historic document", "covering the history file using 7 0" and "covering the history of the use of 0 Document 35 ", the time required for the latter two operations are 7 times and 35 times the first operation. While these operations will take you a few hours, but for the important data stored over the hard drive, the time is worth paying.
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After you get a new hard disk, you first need to consider is which file system to format the hard disk. We recommend that you use the FAT32: This is a is a number of (if not all) operating system supports file systems, Windows and OS X systems are able to read and write properly. If your external hard drive is often used take that FAT32 is your only choice. This file system also has its limitations: it is not the type of log file system also lacks support for user rights; It uses the MBR (Master Boot Record) to boot the system, and Apple is not compatible with the system. The defect makes it OS X comes with encryption system can not take effect in the FAT32 file system.
When you buy an external hard drive, the manufacturer may carry some drivers, management, and backup software. These software may offer some very convenient operation, but we do not recommend that you use it (if you are buying multiple hard drives installed, the hard disk with RAID function, or the need to install driver): OS X has built very convenient management tool to manage hard disks, and software vendors may have compatibility problems after OS X update, severe cases may lead to data loss.
Comprehensive look at several factors that we described above, external hard drives using RAID array if you buy, you need to install the drivers provided by manufacturers; If only one external hard disk, you can use the built-in OS X Disk Utility. If you need to use an external hard drive in Windows, need to use the FAT32 file system; just use an external hard drive in OS X, then, you can use Mac OS Extended (Journaled) file system.
Want to format the hard drive under Mac, simply connect an external hard drive to the Mac, and then open the "Disk Utility", according to the following steps:
1 .In the "Disk Utility" screen, select the hard disk you want to format. In order to avoid the wrong hard drive you choose "Disk Utility" lists the hardware manufacturer, hard drive size and other information to help you identify the hard disk.
2. Select the right of the "Partition" tab
3. In the "Volume Scheme" drop-down menu, select "partition" (if you need to put the hard drive into multiple partitions, select the number you want here). After selecting the number of partitions, the default file system is the "Mac OS Extended (Journaled)", if you want to use other file systems, be sure to select the correct file system, then the format operation
4 .Click on "Options", select the appropriate partition scheme. If you use FAT32, select "Master Boot Record"; other file systems, the use of "GUID" partition table
5 .Click "Apply" and wait for the progress bar to complete, the disk is formatted success
After formatting is complete, OS X will first uninstall the hard disk, and then use the new settings to re-mount the hard drive. If you are buying a new hard drive, perform these steps you can rest assured that use. If you need to check if the hard disk has physical bad sectors or other errors, you need to use third-party tools to complete.
Disk Utility also provides a very useful feature: "Erase Free Space." It can safely erase the data on the hard disk so that the data on the hard disk can not be recovered back. If you need to sell or destroy the hard drive, this feature allows your data to disappear without a trace: select the partition you want to erase, then click on "Erase" tab, select "Erase Free Space", which provides "Zero Out Data", "7-Pass Erase" and "35-Pass Erase" three options, corresponding to "0 is used to cover the historic document", "covering the history file using 7 0" and "covering the history of the use of 0 Document 35 ", the time required for the latter two operations are 7 times and 35 times the first operation. While these operations will take you a few hours, but for the important data stored over the hard drive, the time is worth paying.
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