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Introdução

Creare una chiavetta USB avviabile per Mac OSX El Capitan, Yosemite, Mavericks, macOS Sierra, macOS High Sierra, MacOS Mojave, macOS Catalina e macOS Big Sur.

(Il processo è anche descritto nella pagina di supporto Apple all'indirizzo https://support.apple.com/it-it/HT201372)

  1. Scarica il file di installazione dal Mac App Store. Se desideri scaricare vecchi file di installazione che hai già scaricato, vai alla scheda "Acquisti". Le versioni di macOS o Mac OSX precedenti a macOS Mojave non possono essere scaricate dal Mac App Store.
    • Scarica il file di installazione dal Mac App Store.

    • Se desideri scaricare vecchi file di installazione che hai già scaricato, vai alla scheda "Acquisti".

    • Le versioni di macOS o Mac OSX precedenti a macOS Mojave non possono essere scaricate dal Mac App Store.

    I have previously downloaded this file, but it does not show up on my purchased list. Also tried Apple Support downloads, but they only have “Update” versions to download.

    Peter Simons - Responder

    If, you’re on macOS Majove, it’s impossible to download previous versions of Mac systems. Excepted, macOS High Sierra but, I don’t know for how long.

    Anthony Fassler -

    If you have issues logging into the (App Store -> purchased) due to 2FA, get the code sent to your device and append it to your Apple ID password to log in

    Joe Verba - Responder

    You can download older versions of the OSX. Here are the download-links (unfortunately an article in german, but you can find the download-links below):

    https://www.macwelt.de/a/high-sierra-sie...

    Gerrit - Responder

    If you already have Mojave and just want to download the installer, you might not able to until you disable auto update.

    Just head to the Mojave page:

    https://apps.apple.com/ph/app/macos-moja...

    Then click the download button.

    Software Update will come up, click Advanced and uncheck the auto update.

    You will be able to download now.

    Edmar Herrero - Responder

    Does not work anymore :-(

    wanda_name -

    Hélas , en effet : j’ai été prise de vitesse car je pensais devoir acheter un MAC neuf , et quand j’ai vu les performances à prix égal à celui payé en 2013 , j’ai dit NON !

    Comment continuer de me servir de mon MAC BBOK PRO ?

    Votre site répond à toutes nos question , même l’assistance en ligne de APPLE est incompétente !

    Merci

    GULLY - Responder

    I’m trying to make a bootable usb for El Capitan for a SSD - my current working mac is High Sierra - is this doable? I keep getting errors because El Capitan is too old to run on my working mac.

    Claire - Responder

    Hi Claire did you get any response about this enquiry?

    Gabriel Davila -

  2. Alla fine del download, esci dall'installazione che si avvia automaticamente. Clicca su Installare OS X e poi Esci da installazione macOS X.
    • Alla fine del download, esci dall'installazione che si avvia automaticamente.

    • Clicca su Installare OS X e poi Esci da installazione macOS X.

    Il est également possible de passer par le soft “DiskMaker” pour faire cette clé.

    Il est gratuit, le prendre en fonction de la version de l’OS.

    Frédéric LEGER - Responder

    Merci Frédéric !

    La solution à ce problème peut être très simple, comme vous l'avez écrit.

    Câlins de Barcelone

    Hermes

    Hermes Serrano - Responder

    I downloaded High Sierra on a MacBook Pro already running 10.13.6 and then quit the App Store. No installation window appeared. What does ‘close the App Store’ mean?

    Nick - Responder

    Mit über die Entstehung der Entstehung der Arten gelang Darwin im Jahre 1998 kein großer Erfolg. Karl Heinz Darwin schildert über seinen Bruder Johannes Darwin seine dümmliche Idee der Natürlichen Zuchtwahl. Es gelang ihm der wissenschaftliche Beweis, das alles Negative wie Wirtschaftskrisen aufgrund der natürlichen Habgier von Managern, Bürgerkriege und Völkermorde sowie Rassendiskriminierungen biologisch auf Darwin zurückzuführen sind. Sie haben alle denselben Vorfahren, nämlich Charles Darwin.

    vagina.futtner - Responder

    You actually have to run the InstallMacOSX.dmg, then the InstallMacOSX.pkg

    Beate Tatzel - Responder

  3. Inserisci la tua chiavetta USB nella porta USB del tuo Mac.
    • Inserisci la tua chiavetta USB nella porta USB del tuo Mac.

    • Fai attenzione perché la tua chiavetta sarà formattata in seguito. Evita di lasciare dati importanti su di essa.

  4. Cerca con Spotlight o vai su "Applicazioni / Utility" per avviare il Terminale. Fare clic su di esso per avviare il Terminale. Fare clic su di esso per avviare il Terminale.
    • Cerca con Spotlight o vai su "Applicazioni / Utility" per avviare il Terminale.

    • Fare clic su di esso per avviare il Terminale.

  5. Nel Terminale inserisci una delle seguenti righe di comando (Il nome del sistema operativo è quello che vuoi installare sulla chiave, non quello del sistema del tuo Mac): Per El Capitan: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app
    • Nel Terminale inserisci una delle seguenti righe di comando (Il nome del sistema operativo è quello che vuoi installare sulla chiave, non quello del sistema del tuo Mac):

    • Per El Capitan: sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app

    • Per Yosemite: sudo /Applications/Install\ OS\ X\ Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ Yosemite.app

    • Per Mavericks: sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ Mavericks.app

    • Per Sierra: sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ Sierra.app

    • Troverai ulteriori informazioni al passo seguente.

    • Sostituisci il percorso "/Volumes/MyVolume" con quello della tua chiave USB. A questo scopo rimuovi il percorso corrente e esegui un "trascina e rilascia".

    Are these referring to the OS you're making the bootable device for or the one you're making it from?

    Joshua Montzka - Responder

    Looks like it is probably for the OS that you are installing.

    Joshua Montzka - Responder

    Yes it's for the OS that you want installing on USB key.

    Anthony Fassler - Responder

    Add ““ at start “/Applications/Install OS X El Capitan.app” and at end

    Bitsn Bytes - Responder

    For High Sierra: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ High\ Sierra.app

    Александр - Responder

    definitely copy/paste there are spaces in the command that aren’t obvious in what you see in the instructions. Also, in the replacement of Volumes/MyVolume - only replace the word MyVolume with the name of your USB - this wasn’t clear from the instructions.

    If you need to change the name MyVolume you should copy/paste in pieces as you can’t go back and type over what you input in Terminal

    lch63 - Responder

    Great point. That saved me! Thanks!

    Magnus Dalen -

    what is the application path if I had not downloaded it from the Mac App Store because its not available? I downloaded it from an download-link, but the path is not showed. need help

    Zoran Borschak - Responder

    The best way to make it, is to delete the path after sudo until —volume and to go in your installer with right click, select contents, go in folder Ressources and drag and drop createinstallmedia on your terminal after sudo. after that, check the space after sudo and before —volume.

    Anthony Fassler -

    Easiest way to carry this out is to rename your USB volume “MyVolume” before you do anything else. This lets you copy and pate the Terminal commands without worrying about getting every last keysrtoke and space correct.

    You can rename it to whatever you like afterwards.

    James Demers - Responder

    Worth noting that this generates an installer volume. It won’t boot the Mac with a fully functional OS.

    James Demers - Responder

    James Demers last comment on this whole process “won’t boot the Mac with a fully functional OS” is a show stopper if true? The title of this page completely leads one to believe the solution will be created after going through this process. Aside from that when running … sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app - (yes I named my USB ‘MyVolume’) After being prompted for this users password and entering it, the terminal is presenting "User is not in the sudoers file. This incident will be reported’

    Kevin Russell - Responder

    “"no such file or directory”” this is my response message on this step

    Constantin-Romica GRIGORIU - Responder

    bonjour j’ai besoin d’aide… COMMAND NOT FOUND. J’ai téléchargé OS X ELCAPITAN mais il se nomme donc : InstallMacOSX.dmg comment je fais ? Quelle est la bonne ligne à rentrer dans le terminal ? Je sèche, j’en ai besoin pour cet apres midi. Le InstallMacOSX.dmg je l’ai mis ds mon dossier APPLICATIONS car il etait ds téléhargements

    guigui.laetitia - Responder

    Renaming my USB drive MyVolume worked perfectly.

    The mistake I made was dragging instead of Copy and Paste. Once I did copy and paste it worked.

    James Mulligan - Responder

    I keep getting the error : /Volumes/MyVolume is not a valid volume mount point.

    Andrew - Responder

    Apparently there’s a problem with the Sierra installer downloaded from Apple recently, making you end up with a Terminal response “MyVolume is not a valid volume mount point.”

    After searching through the Internet I found the solution here https://www.reddit.com/r/macsysadmin/com...

    Something’s wrong with Apple’s new installer, so you need to fix it first, with the following command:

    sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist

    Then follow the instructions in step 5.

    Nicolas Bertin -

    Bonjour, s’il vous plaît par quoi remplace t-on le chemin du fichier qui ce trouve après "applicationpath"?

    ERIC N'SAH - Responder

    Il n’y a rien a changer après "applicationpath"

    Anthony Fassler -

    I downloaded El Capitan directly from the Web & not the AppStore. How can I get the path to work properly?

    Jeff Jotz - Responder

    Hello,

    On the Terminal, write “sudo” and after drag and drop your El Captain file.

    Paste after “.app” this “/Contents/Resources/createinstallmedia --volume

    Put a space after volume en drag and drop your USB key.

    Put a space again and paste it “--applicationpath”.

    Put a space again and drag and drop your El Captain file.

    Anthony Fassler -

    Thank You very much Jeff, you solved my problem !!!

    Sabine Kenouch -

    Make sure that Finder or any other app doesn’t access the USB drive, otherwise the deletion/formatting may fail

    Beate Tatzel - Responder

    try erase and partition the usb before sudo command in terminal

    RWong - Responder

    Hello. Rename USB key to MyVolume but still have the message: sudo: /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia: command not found

    joub - Responder

    Hi I have a mid MacBook Pro 13’ mid 2010 with Mac OS High Sierra 10.13 on it trying to create a bootable usb done all the steps but when it comes to terminal it advise Sudo : command not found… please help

    Ridzal Yusri - Responder

    Remplacer le chemin "/Volumes/MyVolume" par celui de votre clé USB, Pour ce faire, supprimez le chemin actuel puis faites un glisser-déposer.

    Comment connaître le “chemin de ma clé USB” ? Qu’appelle-t-on le “chemin actuel”? Merci d’avance.

    Malzieu - Responder

    Le plus simple c’est d’effacer /Volumes/MyVolume et de faire un glisser déposer

    Anthony Fassler -

  6. Per High Sierra: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ High\ Sierra.app Per Mojave: sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ Mojave.app
    • Per High Sierra: sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ High\ Sierra.app

    • Per Mojave: sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ Mojave.app

    • Per Catalina : sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

    • Per Big Sur : sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

    i keep getting a command not found message. I copied and paste and tried several times.

    Devern - Responder

    For what OS ? I remind that, it’s for the system that you want install on your USB Stick not, the one that you’ve on your Mac.

    Anthony Fassler - Responder

    Did not work I get a message that ot had to run on root

    Luis Suarez - Responder

    For versions of Mojave 10.14 and higher, the proper command is:

    sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume

    James Demers - Responder

    I want install High Sierra on usb. Get this error

    “sudo: /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia: command not found”

    Richard Littell - Responder

    I get a “/Applications/Install macOS High Sierra.app does not appear to be a valid OS installer application.” error. What now?

    tsa - Responder

    Me too! I cant install it on USB. I tried everything

    Jan -

    für die mojave version führt folgender befehl zu erfolg:

    sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/stick

    das usb medium in stick umbenennen oder den namen im befehl editieren zb in notizen

    Christian Razborsek - Responder

    It keeps saying that my usb stick is not a valid volume mount point

    Lars K - Responder

    The terminal command posted here to create a bootable drive installing High Sierra is not valid! Not a valid mount point.

    randy3833 - Responder

    Instead of “MyVolume”, input the name of your USB Drive. Need to replace only the Highlighted part of the command

    Andy -

    Thanks Andy! Sorry, I just noticed your helpful reply. I somehow figured this out on my own.

    randy3833 -

    I’m trying to create a Catalina boot utility on my macbook pro for an IMac that was given to me. The IMac has the flashing screen of file folder with question mark inside of it. I just upgraded my Macbook to Catalina from Sierra last night in order to create this boot disk on my “Untitled” drive. I’ve typed the following:

    sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

    And it gives me a command not found error. What am I doing wrong? I have typed my password and it still says not found.

    sudo: /Applications/Install macOS Catalina.app/Contents/Resources/createinstallmedia: command not found

    Damon Grier - Responder

    What macOS do you have on your MacBook Pro ? If your Mac is using macOS Sierra or earlier, add

    --applicationpath /Applications/Install\ macOS\ Catalina.app

    So,

    sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Catalina.app

    Or if you have macOS High Sierra or higher,

    sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled

    Of course, you must have the Install macOS Catalina on your Applications Folder.

    Anthony Fassler -

  7. Dopo aver cambiato il percorso, premi il tasto "Invio". Inserisci la password per la tua sessione.
    • Dopo aver cambiato il percorso, premi il tasto "Invio".

    • Inserisci la password per la tua sessione.

    • La tua password non è visualizzata, ma c'è.

    • Premere "Invio" dopo aver inserito la password.

    • Controlla il nome e il percorso della tua chiave USB. Se è giusto, digita "y" quindi "Invio".

    • La creazione della chiave è avviata, attendi fino alla fine del processo.

    I did as suggested and named my USB drive “MyVolume” and copied & pasted command line for El Capitan.

    Got these messages about the USB drive erasure failing:

    “Ready to start.

    “To continue we need to erase the disk at /Volumes/MyVolume.

    “If you wish to continue type (Y) then press return: y

    “Failed to start erase of disk due to error (-9999, 0).

    “A error occurred erasing the disk.

    Any suggestions?

    Happened with two different USB drives; one was brand new.

    Should add that I’m doing this on a 2010 MacBook Air running 10.6.8

    Richard Harley - Responder

    I think you have to change the format first of your USB. I did it with a brand new USB and had not trouble. To do so, insert your USB and open Disk Utility and go to Erase in the upper menu. Choose to erase your USB and change the format to APFS or MacOSPlus (with register).

    Luxedrina Trementina - Responder

    I’ve done all of the steps and unfortunately, Terminal keeps coming back with this response:

    “APFS disks may not be used as bootable install media.”

    Would you happen to know a workaround? I’d like to be able to use my external SSD usb drive as a boot drive. Many thanks.

    Glenn Howard - Responder

    Make sure that Finder or any other app doesn’t access the USB drive, otherwise the deletion/formatting may fail

    Beate Tatzel - Responder

  8. Il terminale indice "Done (Fatto)". Significa che la creazione della chiave di avvio è riuscita.
    • Il terminale indice "Done (Fatto)". Significa che la creazione della chiave di avvio è riuscita.

    • Ora puoi avviare con la tua chiave premendo il tasto "alt" mentre avvii il tuo Mac.

    Really great guide. Nicely laid out and easy to understand. Nice

    Alec Chandler - Responder

    Overall iFixit guides are great. This one is just good. The instructions are clear and easy to follow. However they involve typing or cutting and pasting a lot of text. This is cumbersome and highly prone to typos, etc. there are several other sites where you can find instructions that talk about free apps that walk you through creating a bootable usb drive. Another one of them has a nifty trick of simply dragging the icon for the usb drive to the terminal window. So while these instructions are clear and work, there are les error prone ways to achieve the same result.

    Stephen - Responder

    Pretty good guide, especially for a community member. Thanks

    Sam - Responder

    I’d add that step 7 can take a while before you see any progress. I’d estimate five minutes (on a 2014 MBP writing to a thumb drive) before the 0% changes to 10%.

    gyorke - Responder

    I’ve created the bootable USB drive with the El Capitan installer downloaded from the app store to my MacBook and successfully booted my 3,1 mac mini with it, but when I try to run the OS X installer I get a message to the effect that it ‘can’t be verified and may have been corrupted or tampered with’ and the process won’t continue. I’ve re-downloaded and tried twice, same thing….. Anyone have any ideas how to proceed?

    echoplex - Responder

    I really appreciate this guide, as well as the person who took the time to put it together. Personally, the LAST thing I want is to add yet another app to a system when there is a way to do it myself without installing anything. But I am a hands-on kind of gal to start with, & I was a tech dept employee for several years in the school system (right around the time the schools began transitioning from Mac to PC :( )

    Thank you.

    spoiledrottenweilers - Responder

    la ligne de commande :

    “sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia --volume /Volumes/nom de la clé”

    fonctionne parfaitement !!!!

    très très bon tuto !!! merci

    jacques Aretz - Responder

    Apparently there’s a problem with the Sierra installer downloaded from Apple recently, making you end up with a Terminal response “MyVolume is not a valid volume mount point.”

    After searching through the Internet I found the solution here https://www.reddit.com/r/macsysadmin/com...

    Something’s wrong with Apple’s new installer, so you need to fix it first, with the following command:

    sudo plutil -replace CFBundleShortVersionString -string "12.6.03" /Applications/Install\ macOS\ Sierra.app/Contents/Info.plist

    Then follow the instructions in step 5.

    Nicolas Bertin - Responder

    Muchas gracias!!! Al fin pude crear el disco!

    pamegutier -

    Everything on ifixit.com is great! I following everything successfully up unitl the part that reads: “To boot off the USB, first make sure the Mac is off and then press and hold the [option] key when you hear the chime/turn it on .” I ejected the bootable drive, as I was creating the bootable drive on my Mac desktop, and the MacBook Pro is what I am doing the hard drive replacement and install on. I did not read the very last instruction until I had already ejected it. Once I powered on my MacBook Pro and inserted the bootable drive, the computer came on and showed me a screen for typing in my password, only my password doesn’t seem to be the right one. HELP!!!

    Jeffrey Fox - Responder

    Have you tried with Apple ID and session password ? Otherwise, you can reset your session password with the recovery mode. On start your Mac press the touches CMD + R, when the recovery mode screen appeared, click on Utilities in the menu bar followed by Terminal. On the Terminal enter the following command : resetpassword and press Return

    Anthony Fassler -

    Hi for step 6 it is showing up as createinstallmedia: command not found after hitting enter for my High Sierra OS. let me know what may be some of the reasons why it is not letting me go to the next step is to click “Y” ..

    Remi Oguni - Responder

    Thanks,installed on an external ssd drive using BigSur,super fast now.

    Steve Odonoghue - Responder

    worked perfect, thank you!! Better than Apple’s own support

    Kamil Isik - Responder

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Anthony Fassler

Membro desde: 26/02/2015

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if it is possible with power iso i have installed this one on my system. http://standaloneinstaller.com/download-...

kennieboezi - Responder

You mean create a USB key from Windows ?

Anthony Fassler -

I'm thinking of using this method to revert back to an older os due to my mac slowing down with Sierra. Will I be able to install just Yosemite or el capitan? Without installing previous os upgrades? This way I can have a fresh mac book.

skylerzanth - Responder

Hello,

Yes you can but with this method, we must make a clean install.

So, please sure you save all your data to another hard drive.

Anthony Fassler -

Réparer ma clé usb

Marc Pitchebai - Responder

clé usb bloquée je cherche à réparer

Marc Pitchebai - Responder

Comment réparer ma clé USB bloquée ?

Marc Pitchebai - Responder

quelle solution trouver

Marc Pitchebai - Responder

Hi, I made a USB bootable drive with el capitan on it. Everything worked fine. I replaced my old hdd with the guide from this site. My iMac is from 2007. But now when I try to boot my computer with the Usb drive while holding the option key I only get a grey screen with a cursor. Any ideas?

Matthias Caes - Responder

Hi,

You must press the Option / alt key immediately after pressing the start button (no need to wait for the startup sound) and normally you can select your usb key.

Anthony Fassler -

That's what I do though. With all the other key combinations I end up with a blinking folder icon with a question mark. i have tried the vpram reset as well so the problem isn't my keyboard. Could it be the usb itself? Or some other problem? If I did something wrong during the hdd replacement I figure I wouldn't have gotten this far, no?

Matthias Caes -

So, it probably comes from the usb key. When you had done it is that the key had the name of the operating system?

If that is not the case then there was a problem when creating.

Try any other usb port though, it's not already done.

If it still does not work, it will be necessary to put back your old hard disk to be able to start your Mac and follow the tutorial above (be careful to respit spaces and characters in step 5).

And check by pressing "alt" that this works well before putting your new hard drive.

Anthony Fassler -

I used a PC to make the usb drive. Downloaded the installer from the App Store and then transferred it to a pic where I extracted the .dmg file from the installer. I used a programme called transmac. I will see if it is possible to make the usb on another Mac. I know the whole process of making the usb drive on a pc was a detour but I didn't really have any other options... Thanks anyway for the help. I'll post back with progress.

Matthias Caes -

Sorry about forgetting to post back. I did the whole procedure on the PC again and it turns out I skipped a step so it all worked eventually. Thanks again for all the help. I feel like my youth playing with LEGO Technics has somehow contributed for my success, but this site was wonderful in all its simplicity!

Matthias Caes - Responder

It does not work for me.

MacBook-Pro-6:~ computer$  sudo /Applications/Install\ OS\ X\ Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ OS\ X\ Mavericks.app

sudo: /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia: command not found

MacBook-Pro-6:~ computer$

rafa-rafelito19 - Responder

Hello,

Do you have Mavericks installer in Applications folder ?

Anthony Fassler -

For some reason, terminal will not install to my flash drive. Getting this back from Terminal.

“AudioPhductions:~ Clint$ sudo /Applications/Install\ macOS\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install\ macOS\ Sierra.app

Password:

sudo: /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia: command not found

AudioPhductions:~ Clint$”

cwagoner78 - Responder

doh! Nevermind, I figured it out :P

cwagoner78 -

Can’t get terminal to find the El Capitan file. It is in my applications file.

wshifty - Responder

Give a try on DiskMaker X if terminal failed. it is an application built with AppleScript that you can use with many versions of OS X/macOS to build a bootable drive from OS X/macOS installer program. The steps you can check out:

https://diskmakerx.com/whats-this/

https://www.uubyte.com/burn-dmg-to-usb.h...

Chris Gorden -

I have followed directions (trying to make a boot-able flash drive with High Sierra which was downloaded from Apple App Store and in my Applications folder, I am running El Capitan on my MacBookPro)

but get this in Terminal: “Untitled is not a valid mount volume”.

“Untitled” is the name of my 16GB USB flash drive, erased and configured as Mac extended journaled with GUID partition and renamed as “Untitled”:

any advice?

Alan Goldsworthy - Responder

Hello,

Did you copy paste of the command line ? Because, the command line is case sensitive.

Anthony Fassler -

Hi there,

Question for you. The step 5 am I copying the os code on the computer I currently have active or am I selecting the one that I am trying to download for the computer I just replaced the hard drive for? I’ve tried both and keep getting errors.

Here is an example:

Audras-Mac-mini:~ audracarpenter$ sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/BlkBackup --applicationpath /Applications/Install\ macOS\ High\ Sierra.app

createinstallmedia: unrecognized option `--volume /Volumes/BlkBackup --applicationpath'

Usage: createinstallmedia --volume <path to volume to convert>

Arguments

--volume, A path to a volume that can be unmounted and erased to create the install media.

--applicationpath, A path to copy of the OS installer application to create the bootable media from.

--nointeraction, Erase the disk pointed to by volume without prompting for confirmation.

Example: createinstallmedia --volume /Volumes/Untitled

Audras-Mac-mini:~ audracarpenter$

Thanks!

audrajcarpenter - Responder

Hello,

The step 5 is for OS that you install on USB key not for your actual OS.

Regards.

Anthony Fassler -

Hi Anthony, thanks for the response. Ok, so the example I posted above, I am trying to use for High Sierra, which is the one I downloaded from the app store. But I am getting arguments that it’s incorrect. Does anything stand out to you as to what I have posted above?

audrajcarpenter -

You’ve a problem with the path of your Volume.

Copy and paste the command line of tutorial because, there are spaces that are not very visible.

sudo@/Applications/Install\@macOS\@High\@Sierra.app/Contents/Resources/createinstallmedia@--volume@/Volumes/BlkBackup@--applicationpath@/Applications/Install\@macOS\@High\@Sierra.app

All symbol “@” are spaces.

Anthony Fassler -

Hi Anthony, thanks, but there is a space for each of them. I did just copy straight from the page. Any other thoughts what it could be?

audrajcarpenter -

So, format your USB key in format Fat32 with more simple name (UNTITLED) by disk utility.

Then copy and paste this command line :

sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/UNTITLED --applicationpath /Applications/Install\ macOS\ High\ Sierra.app

Anthony Fassler -

Hi Anthony that worked! Thanks so much. QQ.. now that I have that drive, I’ve followed your instruction on installing on a new hard drive for a mac book pro 2010 but I’m getting a ‘This copy of the install mac0s high sierra application is damaged, and can’t be used to install macos.’

I’ve tried it twice, but still getting same issue. Do you have a how to around this that I can take a look at?

audrajcarpenter -

It’s an other problem, normally it's because of the time of your Mac that is not fair.

if, you have booted on the usb key. So, you have to set the time of your mac.

So, before click on install macOS, go to utilities/Terminal, enter this command line “date mmddHHMMyy” and change the lettre by the actual date.

mm=mouth, dd = day, HH=hour, MM=minute and yy = year (example = date 0824113518)

Anthony Fassler -

How long should the installer files take to load onto the USB? I’m currently copying El Capitan onto a 16gb USB, the file is only 6.something Gb and it’s already taken longer than 20 minutes…

Katrina Evitts - Responder

It’s written above Time Required 30 minutes - 2 hours.

It depends on the speed of the usb.

Anthony Fassler -

so easy … its making me paranoid.

Rick Carter - Responder

this procedure does not work for os x mountain lion, right?

Gianluca - Responder

Hello,

Unfortunately no

Anthony Fassler -

After I enter it all, I get a comment that says “ /Applications/Install macOS High Sierra.app does not appear to be a valid OS installer application.” Any ideas why this might be?

Russell Greenberg - Responder

Hello,

Do you have the file in your application folder ?

If yes, the command line you entered is incorrect. Copy and paste is the better option.

Anthony Fassler -

Thanks for you sharing ,i don't know if any of you have ever used Rufus and WizISO ,(Free and fee tools that can be used to do the same thing )

https://rufus.ie/en_IE.html

https://www.iseepassword.com/create-boot...

poasmer - Responder

I’ve noticed a lot of people having issues so here is what I done first open terminal and type sudo then a space then go to your OS X app (should be in the application folder) and right click then choose show package contents after that a new Finder window will open double click Contents then Resources and find a file called createinstallmedia and drag it into your terminal window then type a space then “--volume” space then drag then name of your flash drive (should be listed on desktop) to the terminal window then type space then “--applicationpath” space then drag the installer app (should be in the application folder) to the terminal window then hit enter type your password hit enter “y” to confirm then enter

Dakota Miller - Responder

Thank you very much for sharing this, it worked flawlessly!

laporta.fra -

Will I be able to re-use the USB drive after installing Mac Os?

Christian Truchsess - Responder

Yes of course, after a formatting of your USB drive

Anthony Fassler -

How much storage do I need on my USB Drive to get the software on it?

Andrew Lim - Responder

You need USB drive with 8GB minimum

Anthony Fassler -

so i notice this in the terminal what does it mean?

WARNING: "--applicationpath" is deprecated in macOS 10.14 and greater. Please remove it from your invocation.

Andrew Lim - Responder

Apple improved it’s function with the new macOS Mojave and greater as said above, the function work but, without the part “—applicationpath”.

So, remove this part and try again, normally it should work.

Anthony Fassler -

Thank you! for the help

Andrew Lim -

is there any easy solution other than text commands?

Chris Gorden - Responder

is a 8 GB pendrive enough or i nead a 16 GB?

thebandicootcove - Responder

8 GB drives should work fine, I wouldn’t go smaller than that. I believe it’s around 5-6 GB total used for the installer files.

Jonah Aragon -

What dows this message mean?

Olavs-MacBook-Pro:~ Hjem$  sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install\ macOS\ Mojave.app

Password:

Sorry, try again.

Password:

WARNING: "--applicationpath" is deprecated in macOS 10.14 and greater. Please remove it from your invocation.

Olav Andreas Larsen - Responder

remove --applicationpath and after, normally work again. it’s on Mojave the function is no longer used

Anthony Fassler -

Hi,

If running Sierra and want to create a bootable drive for mountain lion the same way, can you help ?

Thanks

tony

Tony - Responder

After I create the bootable flash drive, can I easily transfer the installer to another flash drive (basically by drag n drop)? I installed it on a large 64gb flash drive, but it’s only taking up about 8gb. I’d like to move it to a smaller flash drive so I can use the 64gb for other files.

Or am I able to add on files with it to the 64gb?

Lori - Responder

Hi,

Before create the bootable usb, you can create a partition for it and a other for your files.

You can make it on Disk Utility when your usb stick is connected on your Mac.

Anthony Fassler -

Thanks for the reply, Anthony. But, I didn’t do that before I created the bootable usb. : ( Can I transfer the installer file from one usb to another?

Lori -

No, you can’t but, you can format your usb drive and create the partitions and for then create the bootable macOS on a partition.

Anthony Fassler -

Please, update the 1st step of the article - in Mojave there is no way to see a list of available OSs. I need a High Sierra image for my old iMac that is not booting up, and I can’t download it. Direct links to the OS update packages to AppStore are not working.

pablomedok - Responder

Can you use the drive you just removed from the MacBook Pro as the boot drive? It already has the operating system and all your old files on it. I see that OWC sells a usb connection device for your old drive. This would make things a lot easier if that’s possible.

George Blomberg - Responder

What about using Time Machine as a backup? As you turn on your Mac, press Command-R, keep the buttons held down until you see something loading on the screen. You will get an option to backup from Time Machine.

George Blomberg - Responder

Is Sierra no longer able to make bootable USB’s?

Robert R. - Responder

Bonjour,

Pour El Capitan j’ai bien réussi à créer une clé USB bootable . Mais je n’y arrive pas pour Sierra. J’ai bien appliqué tout le process indiqué mais quand je valide l’instruction:”sudo /Applications…..Install\ macOS\ Sierra.app” , j’ai bien la demande de password mais après validation , le système me rend la main et il ne se passe rien… J’ai bien vérifié le chemin de “createinstallmedia”

Quelle en est l’explication? Merci pour votre aide.

AMORY - Responder

If you download the .dmg file for El Capitan, there is two extra steps. You must manually open the .dmg file. Then it unpacks a .pkg file, you must run this application too. Then return to step 3.

Tony Waters - Responder

Does it normally take a long time to copy the installer files to the disc? I’m going on a half hour of just copying. I know its a 5+GB file but i didn’t think it would take this long. I’m making a bootable usb drive for my mid 2012 macbook pro using my mid 2015 macbook pro.

aaronshirzadi - Responder

Update: After noticing the estimated time for completion posted at the top saying 30min-2hrs I just remained patient. Process completed after about 55 minutes :)

aaronshirzadi -

ottima guida con qualche piccolo aggiustamento in corso d’opera. ottimo risultato

grazie

davide artisan - Responder

Bonjour

comment faire pour desinstaler la dernière version de iOS pour réinstaller high sierra ?

mohamed sahraoui - Responder

HI,

Thank you for the tutorial,

I already installing a bootable sierra key , but have an error message about the volume :

Volumes/MyVolume is not a valid volume mount point. ??

Any one saw this before ?

regrads

Alexilestat - Responder

Step 5: Instead of "/Volumes/MyVolume", type the name of your USB drive. Type everything else exactly as you see it (or better yet, copy and paste it from here).

VauWeh -

The scripts for Catalina has error…. I found the same error in several sites… so this means the content was copied…

Marcelo Osorio - Responder

if you’re doing this just to get the same version onto a newer disk. back up and time machine restore to your new disk is so much faster and easier.

RWong - Responder

I made a startup disk with a usb flash stick for high Sierra. My Mac OS is 10.11. When I boot from the usb flash stick none of my applications that I installed previously show up. Do I have to reinstall them to have access?

walter thömmes - Responder

I use "Rufus" for all other USB writing and formatting for Windows systems, it's a great app, but I had previously tried to format the drive as GPT using that, as a Fat32 partition. When I tried to inject the image, Transmac told me that the drive was "write protected". So basically, the USB drive cannot have any high level formatting, the Windows system should detect the drive as "not formatted" for this to work, which it will if prepped right with Diskpart.

https://www.sysgeeker.com/how-to-create-...

https://www.balena.io/etcher/

Wyatt Katherine - Responder

Doesnt work anymore — on catalina I cannot find anything but big sur in mac app store

Charles Pantoga - Responder

Yes that’s normal, Apple only provides the latest version on the App Store. If you want a different version of macOS, you need to search.

Anthony Fassler -

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