Erasing your disk: For most reasons to erase, including when reformatting a disk or selling, giving away, or trading in your Mac, you should erase your entire disk. Minecraft skins for macbook pro.
Erasing a volume on your disk: In other cases, such as when your disk contains multiple volumes (or partitions) and you don't want to erase them all, you can erase specific volumes on the disk.
Erasing a disk or volume permanently deletes all of its files. Before continuing, make sure that you have a backup of any files that you want to keep.
How to erase your disk
Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue. If you're not erasing the disk your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder.
Choose View > Show All Devices from the menu bar in Disk Utility. The sidebar now shows your disks (devices) and any containers and volumes within them. The disk your Mac started up from is at the top of the list. In this example, Apple SSD is the startup disk:
Select the disk that you want to erase. Don't see your disk?
Click Erase, then complete these items:
Name: Type the name that you want the disk to have after you erase it.
Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
Scheme: Choose GUID Partition Map.
Click Erase to begin erasing your disk and every container and volume within it. You might be asked to enter your Apple ID. Forgot your Apple ID?
When done, quit Disk Utility.
If you want your Mac to be able to start up from the disk you erased, reinstall macOS on the disk.
How to erase a volume on your disk
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Start up from macOS Recovery. Then select Disk Utility from the Utilities window and click Continue. If you're not erasing the volume your Mac started up from, you don't need to start up from macOS Recovery: just open Disk Utility from the Utilities folder of your Applications folder.
In the sidebar of Disk Utility, select the volume that you want to erase. The volume your Mac started up from is named Macintosh HD, unless you changed its name. Don't see your volume?
Click Erase, then complete these items:
Name: Type the name that you want the volume to have after you erase it.
Format: Choose APFS or Mac OS Extended (Journaled). Disk Utility shows a compatible format by default.
If you see an Erase Volume Group button, the volume you selected is part of a volume group. In that case, you should erase the volume group. Otherwise, click Erase to erase just the selected volume. You might be asked to enter your Apple ID. Forgot your Apple ID?
When done, quit Disk Utility.
If you want your Mac to be able to start up from the volume you erased, reinstall macOS on that volume.
Reasons to erase
You can erase at any time, including in circumstances such as these: Mic auto tune software.
You want to permanently erase all content from your Mac and restore it to factory settings. This is one of the final steps before selling, giving away, or trading in your Mac.
You're changing the format of a disk, such as from a PC format (FAT, ExFAT, or NTFS) to a Mac format (APFS or Mac OS Extended).
You received a message that your disk isn't readable by this computer.
You're trying to resolve a disk issue that Disk Utility can't repair.
The macOS installer doesn't see your disk or can't install on it. For example, the installer might say that your disk isn't formatted correctly, isn't using a GUID partition scheme, contains a newer version of the operating system, or can't be used to start up your computer.
The macOS installer says that you may not install to this volume because it is part of an Apple RAID.
About APFS and Mac OS Extended
Disk Utility in macOS High Sierra or later can erase using either the newer APFS (Apple File System) format or the older Mac OS Extended format, and it automatically chooses a compatible format for you.
How to choose between APFS and Mac OS Extended
Disk Utility tries to detect the type of storage and show the appropriate format in the Format menu. If it can't, it chooses Mac OS Extended, which works with all versions of macOS. If you want to change the format, answer these questions:
Are you formatting the disk that came built into your Mac? If the built-in disk came APFS-formatted, Disk Utility suggests APFS. Don't change it to Mac OS Extended.
Are you about to install macOS High Sierra or later for the first time on the disk? If you need to erase your disk before installing High Sierra or later for the first time on that disk, choose Mac OS Extended (Journaled). During installation, the macOS installer decides whether to automatically convert to APFS—without erasing your files.
Are you preparing a Time Machine backup disk or bootable installer? Choose Mac OS Extended (Journaled) for any disk that you plan to use as a Time Machine backup disk or as a bootable installer.
Will you be using the disk with another Mac? If the other Mac isn't using macOS High Sierra or later, choose Mac OS Extended (Journaled). Earlier versions of macOS don't work with APFS-formatted volumes.
How to identify the format currently in use
If you want to know which format is currently in use, use any of these methods:
Select the volume in the Disk Utility sidebar, then check the information shown on the right. For more detail, choose File > Get Info from the Disk Utility menu bar.
Open System Information and select Storage in the sidebar. The File System column on the right shows the format of each volume.
Select the volume in the Finder, then choose File > Get Info from the menu bar. The Get Info window shows the Format of that volume.
If your disk or volume doesn't appear, or the erase fails
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Shut down your Mac, then unplug all nonessential devices from your Mac.
If you're erasing an external drive, make sure that it's connected directly to your Mac using a cable that you know is good. Then turn the drive off and back on.
If your disk or volume still doesn't appear in Disk Utility, or Disk Utility reports that the erase process failed, your disk or Mac might need service. If you need help, please contact Apple Support.
Learn more
If you can't start up from macOS Recovery, you can use a different startup disk instead.
If Disk Utility shows a Security Options button in the Erase window, you can click that button to choose between a faster (but less secure) erase and a slower (but more secure) erase. Some older versions of Disk Utility offer the option to zero all data instead. These secure-erase options aren't offered or needed for solid-state drives (SSDs) and flash storage.
Apple Mac Hard Drive
February 25, 2017 Filed in: Vintage | Restoration | Mac SE | Upgrades
Solid State Drive For Imac
The hard drive in my Mac SE is on the way out. Sometimes the drive is detected, sometimes it's not. Sometimes the SE boots all the way to the Finder without a problem. Sometimes it hangs at the 'Welcome to Macintosh' screen. Sometimes I can launch an app and run it without issue, but then the whole machine hangs when I exit the app. It's been like that for about 2-3 months now, and it seems to be getting worse. It's only a matter of time before the drive completely dies. Luckily, I have an external drive that I copy of all my apps, files, and disk images to for redundancy. Unfortunately, that drive is starting to flake out too. It's more reliable than the internal drive, but it too sometimes doesn't appear in the Finder at startup. Then again, I don't know if that drive is having issues of its own, or if the internal drive is wreaking havoc on the SCSI bus. I've really been wanting to get away from old spinning platter based drives for a while now. They're just getting too expensive. Finding an old hard drive on eBay for $5 bucks used to be commonplace. Now, they're regularly posted for anything between $30 and $50; sometimes higher. It's no longer cost effective to pay $50 for a vintage SCSI hard drive on eBay for it to either arrive DOA, or die shortly after installing it. Believe me, I've purchased several vintage drives off eBay over the years that arrived DOA. I've seen a few solid state alternatives online before, although they've been too expensive for me to take the plunge. The closest I ever came to bitting the bullet was when I saw Aztec Monsters hit eBay for $120. That's expensive, but still way cheaper than other $250 SCSI alternatives that I've seen in the past. Unfortunately, me actually having the money and them being available on eBay was never at the same time. Last December, I was looking on eBay for some drive alternatives when I happened upon the SCSI2SD adapter. It was exactly what I was looking for, and it was only $70 bucks. By far, the cheapest solid state SCSI drive alternative I've seen to date. As cheap as it was, $70 bucks was still $70 bucks with the holidays just weeks away. I figured I'd get through the holidays first, and then pick one up. Well, it's already February, so I figured I'd get one now since the drive is really starting to act up. This thing is amazing! Why did it take so long for someone to figure out how to go from SCSI to an SD card? It looks simple enough. There's power management stuff on the right, a single chip in the middle that does the talking, and an SD card interface on the left. I'm no stranger to Arduino builds, and this doesn't look any more complicated that the likes of my GPS clock, or any of my clocks for that matter. Then again, perhaps the firmware on that chip requires nothing short of witchcraft. See, this is why you shouldn't throw anything away! With 16GB and 32GB SD cards as the norm, what good is a 2GB card? I've had this lying around for years. A 2GB card in a 15MP camera is useless, but a 2GB hard drive in a Mac SE? That's insane! First order of business was opening up the SE and removing the old drive. I didn't want to go to all the trouble of mounting the SCSI2SD card inside the drive caddy until I knew that it worked. For now, I just sort of left it hanging off the back. I booted the machine up with the Utilities disk from the 4-disk System 6.0.8 installer and launched the Apple HD SC Setup utility. As expected, the drive was not detected. Apple's utility cannot recognize non-Apple-branded drives. I tried it again with the 'patched' version of that utility (the one that's been floating around the Internet for years) and it detected and successfully initialized the 2GB card as a single partition. I then thought of an idea. Instead of going through the laborious process of installing everything via floppies, and dragging my backup over from the external SCSI drive, wouldn't it be easier and faster to pop the 2GB SD card into my SD card reader on my Mac Mini and just drag and drop System 6 along with a few hundred Megs of vintage goodies? I connected the SD card to my Mac Mini via an SD card reader and dragged over a bunch of files, including a complete System 6.0.8 System folder. I reinsert the card back into the SCSI2SD and fired up the Mac. Unfortunately, the SE wouldn't boot off the card. I figured it was because I didn't 'bless' the System folder, so I booted the SE up again with a System 6.0.8 floppy, fully expecting the SCSI2SD to mount on the desktop. It didn't. I don't know what I did to the card inserting it into the Mac Mini, but it seemed to no longer be recognizable. Do over! This time, I booted the machine up with a System 6.0.8 disk and launched Lido 7. The drive was instantly detected. I configured it for 2 x 1GB partitions just for fun. I gave the machine a reboot with the floppy and my two new partitions mounted on the desktop. Hum, I wonder if a System 6 / 7 dual boot setup is possible? I then popped in the System Tools disk from the 4-disk System 6.0.8 installer and ran the install utility. After a few minutes, I had a fresh install of System 6.0.8. The SCSI2SD has a hard drive indictor LED right on the board, but the sweet thing is that it also has a 2-pin jumper for an external LED. I was able to connect the LED that was on the old drive tray right to the SCSI2SD. They both flash in perfect unison. Being so small, the SCSI2SD doesn't have traditional hard drive mounting holes. There was no easy way for me to mount it into the old drive tray without 3D printing some kind of custom rig. I didn't think it was worth all the trouble, so I just secured it with some twisty ties. This will at least keep it in place and prevent it from flopping around. I then put the Mac back together and fired it up. I then copied all my files, apps, etc over from the external drive. It didn't take nearly as long as I thought it would. I thought I had more stuff on that drive than I actually did. It turned out to only be 125 megs. It's so fast now! It takes seconds to go from a cold start to a desktop. This just might be the fastest computer in the house! Look at how fast it boots up. I'm going to have to pick up a few more of these!