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- #How to format mac disk how to#
- #How to format mac disk mac os#
- #How to format mac disk serial number#
- #How to format mac disk update#
- #How to format mac disk upgrade#
Newer machines download Hardware Test from Apple via the Internet, so connect a Ethernet cable (preferred) and press and hold the D key and boot the machine. Apple also has links to identify the machine.
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#How to format mac disk serial number#
With OS X being tied to a previous owners ID, you likely can't reinstall it.Īnother method to get the profile of the machine is to use Apple's Hardware Test, which in some cases will provide Model Identifier and Serial Number as well as a host of other data about the machine, like the RAM etc. Then use Terminal and enter this command followed by the return/enter. If the machine is hold Command(⌘) r booting into RecoveryHD, or hold Command(⌘) Option/alt r booting into Internet Recovery (connected via Ethernet to router/modem (wired or built in keyboard needed for at boot key commands) This Apple support document will assist you getting the Serial Number: If the machine is not booting into OS X, then you will have to work from the Serial Number located on the outside of the machine or box someplace. What is important is the Model Identifier, the Serial Number and the Memory, get all this written down. Then do > More Information and write down all what you see there. Drives, partitions, formatting w/Mac's + PC'sįirst off if the machine is bootable to OS X, head to the Apple Menu > About This Mac and note the OS X version. If you require more complicated behind the scenes action then read theseĮrase, formatting, OS X installs on Mac's. Be glad to know it now than later on and takes your data with it. If the drive fails the zero erase procedure, it's bad and requires replacement. It does take some time to complete but it's worth it to prevent drive issues later. 10.5 is currently not supported for security issues etc., so if your using this, use it off the Internet.Īll OS X boot drives must be formatted in Apple's Disk Utility (as minimal) 1 Partition: Option: GUID and OS X Extended Journaled as the format.Īll OS X boot hard drives (not Solid State Disks) should be futher erased with the Security Option: Zero All Data or move the slider one spot to the right, this has a effect of wiping all data off the drive and also eliminates bad sector issues that can prevent a drive from formatting or even installing OS X.
#How to format mac disk upgrade#
This User Tip is designed to cover Intel Mac's, older PPC processor based Mac's came with their own OS X disks or 10.5 upgrade disks and that's the last OS X version that can run on those machines.
#How to format mac disk update#
The previous owner is supposed to remove any firmware passwords, erase everything and reinstall the OS X version that came with the machine or OS X 10.6 (if the machine originally came with 10.6, 10.5 or 10.4), but usually this doesn't occur and when the new owner goes to update OS X or reinstall the OS, they are blocked in some manner. Click Erase and now you can get to whatever you want for a format.As people begin to sell their used Intel processor Mac's problems are occurring when the new owner wishes to wipe everything and make the machine their own due to complexity of reinstalling various OS X versions, AppleID conflicts etc, so I will attempt to clear up the issue and provide concrete procedures you need to follow. So all you need to do is switch to Show All Devices. Now you can actually change it to whatever you want. Or probably what you want to do is select the Device and the result might be the same. But if you move up the chain you see that you can change the container to be something else. If you go into Erase it you can only erase it as an APFS. Now when you have have the Volume selected, the volume is APFS. Now with APFS you've got Device, Container, and then Volumes under that. So before we had, say, a physical device for the drive and then you had volumes.
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Now you can see that I'm actually selecting the Thumb Drive Volume inside of the one container for this actual physical device. One where it shows only the volumes and another that Shows All Devices.
#How to format mac disk mac os#
You see in Mac OS Mojave disk utility has two view modes. But, in fact, it's a completely different problem and a very simple one to solve. If I click Erase here you see that the only format options I get are APFS. But if you need to reformat it, say as the older Mac format or maybe a cross platform format with Windows, it seems like once you format something like this thumb drive at APFS you can't reformat it as anything else. How do you reformat a drive that is formatted APFS? APFS is the current way to format Mac drives.
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Video Transcript: Here's a question that's been asked a lot recently all over the internet.
#How to format mac disk how to#
Check out How To Reformat An APFS Drive As Something Else at YouTube for closed captioning and more options.
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