Diskutil erase disk terminal reddit. 9M subscribers in the mac community.

Diskutil erase disk terminal reddit Or in recovery run the terminal and type sudo diskutil list (you will see the list of drives/partitions, take note of which one is the one you are trying to unmount/format, should be something like /dev/disk<number>) According to Disk utility the 1 TB of space is shared by 5 volumes. It's showing there is no disk or destination to install it to. Boot into recovery and run first aid on the drive with disk utility, it should repair the problem and allow you to unmount it. A third file named . Try these Terminal commands from within macOS to enlarge your startup disk container: First, to delete the second APFS container with nothing inside: diskutil apfs deletecontainer disk0s3 Dec 17, 2014 · An Apple-branded SSD is erased by the Trim command that Disk Utility sends to the disk upon an erase option. My Mac can never find it… Trying to make my main Monterey partition larger but couldn’t remove my dual boot partition in disk Utility (only erase it) so I used terminal. Below are some commonly used commands. In Terminal: tmutil listlocalsnapshots / If may get a list like Com. 7 GB disk0s3 Marlin:~ davidanderson$ sudo diskutil apfs deletecontainer disk0s3 Started I have a desktop I mac older version that I bought from somebody and it is stuck in desktop utility it tells me to Mount and erase the hard drive and when I do it says it cannot be deleted I don't have access to any of the passwords since I bought it from somebody and don't know how to Bypass or do anything on it it's just stuck in this mode I don't have access to system preferences or 8. Aug 30, 2016 · To erase a disk from the command line on the Mac, we’ll use the familiar “diskutil” command with the eraseDisk verb and other appropriate flags to specify options for how we want to erase the disk, and to identify which disk is to be erased. Because solid state doesn’t have magnetic platters, that should be sufficient. Do I need a "securely erase" with diskutil secureErase 0 or sth or simply erasing the drive is enough? I want to erase the data of the macbook so, that it is not possible to recover it anymore. The computer has only been reset 1 time and it was done by the official Apple support. Then try recovery mode or internet recovery to reinstall macOS. May 3, 2008 · I need delete an external SSD with this command: diskutil eraseDisk APFS 'MySSD' /dev/disk4 but I don't know which disk choose: disk4, disk4s1, disk4s2, disk5 or disk5s2 ??? confused, which one is the top level or which I need to select to erase the whole disk? /dev/disk4 (external, physical) In Disk Utility I keep getting a "Can't Erase Disk because programs are using it (Finder)" Is there a way I can force erase? I could erase via Terminal if needed but I want to only do that as a last resort. There’s basically no reason to fully reinstall macOS today unless your Mac won’t boot. The work around is to do a disk partition in disk utility and make that partion an OSX Extended Partion. I also tried diskutil in terminal but the unmountDisk command didn't work for that partition or disk. So I've been trying to use diskutil to erase an external drive with no luck. View community ranking In the Top 1% of largest communities on Reddit Disk Utility keeps crashing while trying to Erase my Time machine SSD. Why is this happening and how to fix it? I'm booting from the Yosemite installer and using the Disk Utility from Utilities menu. Need help to erase my macbook pro to trade in to do this in terminal (google it) diskutil Under macOS Monterey, this volume is protected by SIP. I just tried a secure erase again and got this error: eraseVolume – Erase an existing volume; reformat – Reformat an existing volume; eraseOptical – Erase an optical media (CD/RW, DVD/RW, etc. Format/Erase with Format MS-DOS(FAT) and Scheme GUID Partition Map. If the Mac has a T2 chip, the drive would already been encrypted. Open up terminal and type “sudo rm -rf” without the quotes and then open up a finder window with the file you want to delete and drag it into the terminal window (it should copy the path to the file). Then erase each child partition individually. I taught myself how to use specific commands on the terminal to see if I can I mount, erase, eject. This is where the problems begin. And if I click for details it says "Unmounting disk. 74 GB. If SATA, you can open terminal and run (case sensitive): diskutil secureErase 2 /dev/disk0 This will run a DoD 7 pass secure wipe on the drive. Those are just a couple fun and easy terminal commands. You could also boot to single user Mode and try it I then ran diskutil erase on s3 and s2. MacBook Pro M1 Max, macOS Monterey 12. . This shortens a life of SSD don’t do it often – once its ok do not write multiple times ONCE is enough – Google it Jun 25, 2021 · This can be done using Disk Utility or through the Terminal. Just like Disk Utility, you can use the command to format disks, erase drives and more. You can do that in Disk Utility as well. 0 GB disk0s2 3: Apple_APFS Container disk1 49. Reply reply Well I was following the instructions on the Apple site for erasing the disk in order to sell it. So I did some research and found another post on AskDifferent that explained how to delete a partition from terminal (in recovery mode) by first unmounting the physical disk using diskutil unmountDisk /dev/disk0 and then deleting the partition using gpt remove. 8M subscribers in the mac community. That's how a computer booted from live disk image works. erase the disk and erase the volume itself 2. 3 of which are not mounted and take up 7. ) Click on the Apply button, then wait for the Done button to activate and click on it. In other words how do format/erase a disk with Console/Terminal? I attempted recovery mode, forced unmount and erase in terminal and so forth, which is what is usually suggested online. Like, will it overwrite the disk space so there's no way it can be recovered (like running diskutil secureErase)? Erase all content and settings is sufficient. I would (personally) do one thing. If solid state, then you can open disk utility and erase the drive. You should then be able to use Disk Utility as normal to erase the drive or partition to select a different partition scheme, like FAT32 or ExFAT. 13. If unplugging / replugging the USB doesn't allow you to format it either via Disk Utility GUI or via diskutil erasedisk in Terminal it's probably a sign the flash drive's failing or has write-locked itself to prevent catastrophic failure. disk_label_2x The file chosen by the firmware depends on the resolution of the display. Basically I am trying to get rid of these volumes, disk, partitions that are on my diskutil list. Then from the top menu bar, select Disk Utility. I would just run:diskutil secureerase 0 disk0 now with M1 i'm getting multiple issues either: when running diskutil erasedisk apfs macintosh disk0 i get errors saying failed to unmount. disk_label. If you have access to a second computer (preferably a windows computer) I would hook the drive up to that and see if you can partition and format it there - if it works, hook it back up to the Mac and reformat it to HFS+, but there's a good chance you'll be taking it back to the store instead. Bit of a longshot but I picked up a Powerbook G4 (550Mhz) last week and am trying and failing to erase (and partition) its hard drive using a Tiger… The button "Erase" on Disk Utilities is greyed out. TimeMachine will warn you that the drive has to be reformatted as Mac OS Extended (Journaled) and ask for your approval to proceed use diskutil in terminal. Format/Erase with Format MS-DOS(FAT) and Scheme Master Boot Record. o 1 - Single-pass random-fill erase. 7 Edit: Fixed, thanks for the help! diskutil eraseDisk JHFS+ NewDisk /dev/disk3 That will erase the 32GB drive (/dev/disk3 in your Terminal output) and give it the name "NewDisk" with the standard Mac partition scheme. I am not sure what those 3 are, even after running diskutil list. When I go to disk utility while logged into the machine, the 'erase' option is greyed out for the Mac SSD. disk_label and . It is somewhere hidden cause even if u erase the SSD, BASE OS X is still present. The idea was to give it to my gf who just wants a computer for internet and a bit of word processing. use Disk Utility to format the drive APFS Open TimeMachine preferences and select the drive you just formatted. Once disk0s4 becomes visible in the Disk Utility application, you can remove the partition and reclaim the space. Asahi Linux: Linux on Apple Silicon Website: https://asahilinux. First, diskutil list gave me its name (iMac20), but sudo diskutil unmount force /dev/iMac20 would not unmount it. I'm running Sierra on a Macbook Pro 13'' (4GB) from early 2011. I delete snapshots all the time my are caused by time machine. However, when I type diskutil list on the terminal my original gas appear (above). Typing in Terminal then hitting the TAB key will do it automatically for you starting with diskutil mount /Volumes/E then hit TAB for the completion to have it done correctly and of course then ENTER key to execute the command. 3K subscribers in the AsahiLinux community. Start in recovery mode, go to disk utility, Erase the disk in Format: mac OS Extended journaled Sheme: GUID partition map Then shut off the computer, and boot with the usb, without the Wi-Fi, select the OS you want, then when it boots it is go to reinstall os select the disk, it should work diskutil apfs resizeContainer disk5 0. If you put in your own SSD, then you’d have to refer to the SSD manufacturer for a secure-erase option or use a third-party tool, such as Paragon Disk Wiper. For more security, consider turning on FileVault encryption when you start using your SSD drive. contentDetails contains a text copy of the label. com The basics like ls (list all files in current location), cd (navigate to a certain directory), pwd (list current location). I enter password and it does nothing. I found the disk number in disk utility and tried the aresDisk command, it says Davids-MacBook-Pro:~ David$ diskutil cs eraseDisk JHFS+ UNTITLED disk3 diskutil: did not recognize coreStorage verb "eraseDisk"; type "diskutil coreStorage" for a list It might be possible though disk utility or a simple terminal command: dd if=/dev/zero of=/dev/diskXXXX bs=1M count=10. If you want to customize the visual appearance of your displayed man page, you can select Terminal preferences and find the profile named Man Page. It will be something like /dev/disk1 Unmount the volume of the usb stick in Disk Utility. The system lives on a read-only volume and your Mac doesn’t actually boot from the volume itself, but a snapshot of it. From the list of disks on the left-hand side, select the name of the volume on which you wish to enable journaling. Couldn't unmount disk. Set the Format type to Mac OS Extended (Journaled. You should probably quit the Disk Utility application before entering this command. diskutil apfs resizeContainer disk5 1. I followed an online tutorial for erasing the disk and reinstalling the OS. Note: With an SSD drive, Secure Erase and Erasing Free Space are not available in Disk Utility. To erase a disk: diskutil eraseDisk format name GPT diskX. Both files can be created by the bless command. I followed the directions above to unmount the partition using Terminal. 5t jhfs+ foo 10g ms-dos BAR 0. You can get a list of the options available to you by issuing the command without any options: Then, manually unmount the USB drive in Terminal before erasing it (a blog showcasing the steps is available). If you no longer need that Windows partition, you can check out the tutorial to delete the BOOTCAMP partition and free up that space on your Macbook. Get the ssd out, (you said you have a 2014-2016 Mac so it should be easy) connect it to a pc and wipe the sh** out of it. A panel will drop down. This shortens a life of SSD don’t do it often – once its ok do not write multiple times ONCE is enough – Google it The "man diskutil" command lists the following documentation for the secureErase sub command: secureErase [freespace] level device Erase, using a secure method, either a whole-disk (including any and all partitions), or, only the free space (not in use for files) on a currently-mounted volume. I had some luck in the past with the following procedure, but I have to warn you IF YOU GET THE WRONG DEVICE ID TOU CAN ERASE ALL INFORMATION ON YOUR COMPUTER SO BE CAREFUL! Use Disk Utility info window to identify the device number for your usb stick. The following are pretty basic things to try since you say all partitions on the drive are unmounted: if its external, unplug and replug it in. Just for context, I'm on MacOS. Case 1. However, after restarting and clicking options, the mac disk Macintosh HD is nowhere to be seen, while the EFI boot is still there (ubuntu doesn't run though, it only has a gnome terminal). Oct 21, 2016 · Use diskutil from Terminal. The following command. Managed to delete it with terminal but now that space doesn’t appear on disk utility. Tried to erase in the Disk Utility GUI mode/Terminal command/Recovery mode Disk Utility 3. Once the Terminal is open, type in the following command. Select Install OS X and click on the Continue button. I ran that command a while ago to reformat a flashdrive into fat32 to copy windows into it. sudo dd if=/dev/zero of=/dev/disk1 bs=10000000 dd: /dev/disk1: Resource busy Jan 9, 2025 · I decided to erase & reformat the partition, but Disk Utility could not unmount it. Then type diskutil cs list and make sure your disk says Conversion Dorection: backward. Just be aware that you will lose Jan 6, 2019 · If you are looking for a non-command line version, there is also a way to do it from the native Disk Utility app. Disk Utility should still have a secure erase option which will write zeroes to the drive. The basic syntax for erasing a disk from the command line in macOS is as follows: Dec 3, 2024 · Use diskutil to erase disks on macOS. Repair, making a new partition, etc etc all fail. I’ve tried fixing it a few times but never got anywhere. Everything I have read online says to select the first disk on the left of the disk utility section, but it just shows “Disk0” and won’t let me do anything else. Type diskutil list to see the split drives (a Fusion Drive is just two separate drives configured to work together). With your currently encrypting disk plugged in, open the terminal and type diskutil cs revert /Volumes/DiskName -passphrase where DiskName is the name of the disk you want to stop encrypting. Jul 9, 2011 · You need to escape the illegal characters or it will never work something like this diskutil mount /Volumes/Eric\'s\ Data. When clicking command R to enter recovery mode, in disk util I see that disk0s2 is not mounted. Just so that it shows the device tree. Your disk is in use or occupied Mar 16, 2020 · What is the diskutil equivalence from Disk Utility of. See if a website or server is up or down -> ping-o reddit. Alternatively, you can find other solutions there, such as erasing the drive in Recovery Mode, zeroing out the drive, and then reformatting it using Disk Utility. 9 gb of free storage even after rebooting it. To do that, open your Terminal folder either from Spotlight or by going to the Applications Folder, then the Utilities folder, then double-clicking on Terminal. Then, try and erase the parent. I then had another drive connected at the time and carelessly ran the previous terminal command thinking it was a git command but I forgot I ran that, so it wiped the drive using the same diskutil command. You can also try Terminal from here too. Well it does, but its going into internet recovery and wont connect to my wifi. This command will erase the contents partition 4. The image itself is stored on the boot drive, inside the "Recovery" partition/volume. 6. Previously if i was going to erase an entire disk (delete all volumes, partitions, containers) etc. They will probably Sep 11, 2023 · diskutil is the command line version of Disk Utility, the macOS application used to manage hard drives. Get the Reddit app Scan this QR code to download the app now SSD drive every month using a secure pass35 wipe using this terminal command line "diskutil Jul 5, 2024 · should make the partition visible in the Disk Utility application. diskutil eraseVolume "Free Space" ExEFI disk2s1 That being said, this is either macOS Mojave or High Sierra here, so idk if Disk Utility reports free space in Terminal on those versions. Run this command to add a new APFS container between the Apple_APFS_iSC (disk0s1) container and the Apple_APFS_Recovery (disk0s2) container: diskutil addpartition disk0s1 APFS "Macintosh HD" 0. 2. 7 MB disk0s1 2: Apple_APFS Container disk2 450. If you were looking to erase "Macintosh HD," it would be quicker to boot back into recovery mode and run the following in Terminal: diskutil cs delete "Macintosh HD" I am preparing a Mac to sell. However the option to delete the BOOTCAMP partition is disabled in Disk Utility. Jan 18, 2018 · Click on the Erase icon in Disk Utility's main window. Reply reply After going through this process I recently tried to manually partition it via Terminal but it got stuck at 50% on the "creating partition map" stage. I somehow can't erase a partition. Within the man pages, you’ll find the explanation for how to securely erase a disk’s free space using diskutil : When I use Disk Utility, and click on the drive name and hit Erase and choose ExFat as the format and hit the Erase button I get: Erase process has failed. 3 At the top of the screen, select Utilities -> Terminal. I should only have 2 things, my hard drive and my OS X image drive. Hopefully this will fix the issue for you as well. apple. Any clues? Thanks! diskutil eraseDisk HFS+ newdisk disk4 Unable to begin erase operation: Placing a partition map on a Core Storage logical volume is not supported (-69671) When I go to "about this Mac" and check the storage, I only have 49. I don’t know what happened to the text that goes with this photo. ) zeroDisk – Erase a disk, writing zeros to the media; randomDisk – Erase a disk, writing random data to the media; secureErase – Securely erase a disk or freespace on a volume Aug 29, 2022 · We need to know the path the Mac uses to connect to it. Open Disk Utility from Applications > Utilities > Disk Utility. However now I'm aware I have the option to erase the disk before reinstalling. 3 days ago · Why can't you erase a disk with Terminal? Although Terminal has more extensive functions than Disk Utility, failure to erase disks may occur when Terminal is used. diskutil randomDisk • Write random information across the given whole disk or partition (x) times diskutil secureErase "Securely" erases either a whole disk or a volume's freespace at varying levels of security from 1 pass to DOD or DOE standard (3 or 7 passes) When I try to turn it on I get the flashing question mark saying there is no startup disk available. You can search for Terminal via Spotlight or go to Finder > Applications > Utilities to easily launch Terminal. Welcome to the official subreddit of the PC Master Race / PCMR! All PC-related content is welcome, including build help, tech support, and any doubt one might have about PC ownership. Quit Terminal and reinstall macOS. Quit Disk Utility and return to the Utility Menu. Doesnt tell me its wrong or that it wouldnt connect, just nothing Full story: I recently installed Big Sur onto it from a thumb drive and was in the View community ranking In the Top 1% of largest communities on Reddit. Right click --> "Erase" (it will now rename to Container disk#) In the top righthand menu, press "Partition" Select the desired partition in the pie chart Find your messed up Fusion Drive's LVG UUID. It doesnt appear to have any option from what I can see. org Documentation… Aug 19, 2013 · Now, if you do not want to use the graphical Disk Utility, you will have a standalone manual page displayed that will assist you in using diskutil from the Terminal. Select the partition in the lefthand menu. The command line is an extremely powerful tool that is very useful in many different situations. These options are not needed for an SSD drive because a standard erase makes it difficult to recover data from an SSD. PS: You can also see snapshots when you run disk first aid With FDE encryption, one doesn't need to go to great lengths. using diskutil eraseDisk FILE_SYSTEM DISK_NAME DISK_IDENTIFIER. This seems to be the same problem that Disk Utility is running into as it never moves past the "creation partition map" step. It's also a common practice to erase a disk or partition in Terminal using the diskutil command. Once you’re familiar with it, you’ll find that the command is often more powerful and faster than Disk Utility, with more features to boot. . Enable Journaling using Disk Utility. I did that and the disk got erased and formatted instantly on pressing "erase". Coild not delete it. Using Disk Utility app, but it does not see the USB or just keeps spinning. If you reboot after the erase, you’ll need to connect to a network and the system will be re-downloaded. ( with this solution you can recover your data, when you connect it you could get the files you need out of it) and after that start internet recovery mode and install the os. Expand the view by pressing Command and 0 (maybe 1). Take that UUID, and type diskutil cs delete LVGUUID (but replace LVGUUID with the long string of numbers/letters). I named my partition Untitled, but by default Disk Utility should name your volume/partition Macintosh HD. My 2018 15" started to run slow and I was advised to reinstall MacOS. This will erase the disk and give you back the option to erase as a Mac OS extended drive in disc utility. I am unable to reinstall the OS and the OS that was on there is gone. Feb 16, 2020 · Marlin:~ davidanderson$ diskutil list disk0 /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *500. Be careful! This will kill everything on your disk! Disk utility is the safer option. Oct 20, 2019 · I've not succeeded using Terminal command "diskutil secureErase freespace <n> /Volumes/<volume name>". Tried to erase into all combinations of MacOS Journaled(case sensitive or not)/ExFAT/APFS(case sensitive or not) 5. I was able to fix it by doing this: Insert the drive; Run Disk Utility; Select "Partition Disk" Partition the disk as ExFAT; After this I was able to use the disk to create a bootable USB. Do this by typing diskutil cs list into Terminal. The label is stored as an image in the files name . Then go back to the partitioning tool, select the empty space and click the minus button. The community for everything related to Apple's Mac computers! ESP32 is a series of low cost, low power system on a chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth. I believe that you should erase disk0s2 disk1s2 disk3. We have listed the following common cases, if you cannot successfully erase the disk using Terminal on Mac, follow us. Even thought it's new my first thought is that the drive has just failed. The ESP32 series employs either a Tensilica Xtensa LX6, Xtensa LX7 or a RiscV processor, and both dual-core and single-core variations are available. diskutil list • Write zeros across the given whole disk or partition. If you need to erase all contents of a partition but not its hosting whole-disk, use the zeroDisk or randomDisk verbs. Sep 19, 2021 · To find out about diskutil in detail, type man diskutil at the Terminal prompt. Sep 21, 2023 · To access the Diskutil tool in macOS, you need to open the Mac Terminal app first. Sep 6, 2018 · I Can't Reinstall MacOS or Access Internal Disk, APPLE SSD AP0512R Media I recently erased my 2021 Macbook pro and after rebooting it into internet recovery, so I could reinstall the macOS. When I ran diskutil list in terminal it listed 24 disks/disk images. How about if you boot to Recovery Mode and then try to use Disk Utility from there to format it? Boot holding Option and have the external drive plugged in, then choose Recovery from the list of disks. o 2 - US DoD 7-pass secure erase. It failed. Ownership of the affected disk is required. Format a disk (disk2) to APFS with the name USB: diskutil eraseDisk APFS USB GPT disk2 Oct 20, 2019 · I've not succeeded using Terminal command "diskutil secureErase freespace <n> /Volumes/<volume name>". I ran into issues with this, and instead reformatted the disk using the Terminal, using diskutil. Note: To make matters worse, you no longer have the option to format the disk and anything but apfs in disk utility. Even though the drive shows up in finder and Disk Utility. If you do a SECURE ERASE or ENHANCED SECURE ERASE, for all intents and purposes the data is history. The minus sign was greyed out. Attempting to run the "Erase Free Space" tool on CCleaner (Free v1. so if you want to format to APFS since Catalina diskutil eraseDisk APFS disk0s2 diskutil eraseDisk APFS disk1s2 diskutil eraseDisk APFS disk3. 18. 0 GB disk0 1: EFI EFI 209. Shutdown, hold cmd + r after pressing power button, recovery should pop up, try doing the same thing using recovery disk utility. Instead, try freeing up space by removing unnecessary files or programs from the Windows partition, or resizing the BOOTCAMP partition using the Disk Utility app. You'll then be able to manipulate the disk using Disk Utility as normal. Looks like you did run Time Machine or you upgrade was interrupted. Disk Utility has always separate disk image as it own devices, that's how Disk Utility works. Which way I should go? My Time Machine drive appears to have stopped working once I tried an initial backup connected to an Airport Extreme. diskutil secureErase 0 /dev/diskX Will erase your disk, identified by X, with a single pass of zeros. A simple format, drive erase, or luksFormat will ensure the keys are gone, and the data is pretty much completely gone. I turned out that unplugging and just trying a different USB port (I figured they were identitcal and never tried this) was the solution. 9M subscribers in the mac community. And when I access it by rebooting>cmd+r>disk utility, the 'erase' option is there. The community for everything related to Apple's Mac computers! Jan 29, 2018 · I had a SanDisk USB stick that was giving me this issue when trying to build a bootable disk in Disk Drill. yyyy_mm sudo tmutil deletelocalsnapshots yyyy-mm Google it. But, the disk is also gone. On the terminal the empty space shows as inallocated with no identifier. Click Done to continue. Operation failed" Running OSX 10. I pressed cmd/r and used disk utility to Erase a disk as the tutorial said. Level should be one of the following: o 0 - Single-pass zero-fill erase. diskutil list (to identify the partition (shown as partition s1 on disk 2)) . Got same problem with MacBook air M1 yesterday - recovered MacBook only with Apple configurator on a another Mac OS computer (in my case - pc /w hackintosh :D) Don’t waste your time and try to recovery your Mac mini via Apple configurator. Diskutil list shows free space but it’s not showing up in disk utility to expand the partition. 1. Twenty-four. diskutil secureErase will actually unmount any mounted partitions on the drive automatically so it doesn't need to be done manually, so if it wasn't able to do that then there were some application process accessing that drive partition(s). First, if I understand what you want, you'll want to delete the two FAT32 partitions; you can do that in Disk Utility. Clicking Continue OR Crash crashes the app Fisk Utility. Check how to use them to perform various disk tasks. Using the Terminal app with the following commands: sudo diskutil eraseDisk JHFS+ Lexar disk1 Started erase on disk1 Unmounting disk Error: -69888: Couldn't unmount disk Example 1. The entire drive shows as only having the size of the second partition. Then click on File > Enable Journaling. Terminal command: diskutil zeroDisk Write zeros across the given whole disk or partition. If it doesn't work then we'll try using gparted. Select the partition in disk utility, click the delete button and confirm. 30), after enabling Full Disk Access in System Prefs: nothing happens after selecting the volume, submitting my admin password, and clicking "Erase Free Space". However, that still seems to leave some wiggle room so I'm just looking for some clarity/certainty on whether the Empty Trash function on MacOS Ventura will actually delete files from the disk permanently. Tried to erase into all combinations of GUID parition/MBR/Apple MAP 4. If not you may need to eject the disk and plug it back in. Now, in my mind “erase” meant “erase files”, not the OS. I went into the Into disk utility under 'internal', I only have 'APPLE SSD AP0512R Media'. diskutil eraseDisk FREE noname /dev/disk2 99% LIBERTY 73 Mbps Started erase on disk2 Unmounting disk Creating the partition map Waiting for partitions to activate Finished erase on disk2 I need to fully erase the computer, but I cant get into the recovery menu. After opening Terminal, you can use the diskutil commands. Open Disk Utility. 10 votes, 12 comments. Then you'll need to grow the existing APFS partition to use that space. How can I reclaim that space? Unless you selling Mac to NSA Terminal command: diskutil zeroDisk Writes zeros across the given whole disk or partition. nkbto tqcs gxby udl lplj zvigd jzyf selcx itbjw wjpszt