Tech Hack : MacOS

Wednesday, January 10, 2018

MacOS January 10, 2018

How to resize disk partition in macOS

If you’ve changed the size of a partition, you may be able to fix it without erasing the entire drive.

Apple made it easier to resize partitions—logical divisions of a disk drive into separate mountable volumes with different properties—several releases of macOS ago. A Macworld reader resized their main volume to 369GB to set up a Boot Camp partition, but then realized it was too small. They wondered how to fix this.

In the right circumstance, you can simply follow these steps without having to back up the entire drive, erase and reformat it, and add new partitions.

Always back up your drive before attempting to resize partitions in case something goes wrong, or you accidentally click to proceed on a destructive operation.

Launch Disk Utility.
Select the disk, not the volume, in the left-hand lists of disks.
Click the Partitions button.
You can now delete other partitions (select and click the - button), and type in the new size of your main partition in its Size field.
Warning! Click Apply to proceed, and Disk Utility will warn you whether it will be a destructive operation, deleting the partition’s data and re-creating, or not. If it’s non-destructive, proceed.

I haven’t found a complete consistency in which drives have non-destructive resizable partitions or not. You can read a lot of detail about macOS drive partitioning, and still find that a volume that meets all the parameters for resizing without erasing, and still be told by Disk Utility that the partition will be erased.

mac911 partitions disk utility — Disk Utility lets you resize partitions, but it can be hard to predict whether this will require erasing the partition or not until you click Apply.

If you need to erase to repartition, make a full clone, boot from macOS Recovery, and use Disk Utility in that mode to repartition, which will keep macOS Recovery intact if it’s a startup volume. You can then also restore your partition from a clone using Disk Utility as well.

courtesy:macworld.com
Also read:Today in Apple history: Steve Jobs introduces the MacBook Pro
Also read:The best iPad deals of January 2018
Also read:The best iMac deals of January 2018

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Tuesday, December 26, 2017

MacOS December 26, 2017

How to enable FileVault on macOS

Source:iMore

Ready to enable FileVault encryption on your Mac? Here's how!

If you've heard about data encryption, you may have wondered if encryption is something that you'd want to implement for your own data and computers. You might be on the fence on whether you should or shouldn't encrypt your data in this post-Snowden age. Or, you might be a health or business professional wanting to safely store client information. What ever your reason, Apple provides data encryption on macOS and Apple calls it FileVault. Here's how to enable it!

Enable FileVault

Launch System Preferences.
Select Security & Privacy.
Click the Lock icon to enable changes.
Read the WARNING.
Click Turn On FileVault.
You must make a choice on whether you want to use your iCloud account as a key to unlock your encrypted disk or to create a recovery key. If you plan on having highly sensitive data that you want to ensure that no one but you can get access to, the select to create a recovery key. Otherwise choose to Allow my iCloud Account to unlock my disk.
Click Continue.
If you've chosen to create a recovery key you must store it in a safe place not on your hard drive where you'll be able to retrieve it for recovery purposes. Other wise your data will be unrecoverable.

The encryption will run in the background in realtime. You'll be able to use your Mac as you normally would in the meantime.

Disabling FileVault

Once your entire startup disk has been encrypted, you can at anytime turn off FileVault by selecting Turn Off FileVault in system preferences if you find it being too system resource intensive or if you don't think you need that level of security.

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