Ensure the USB Key is properly formatted (Master Boot Record, FAT32 - if necessary NTFS using NTFS-3G); You can try using the Restore feature in Disk Utility by clicking on the USB key's volume, then clicking on the Restore tab and choosing the ISO to restore onto it. If you guys want to make bootable USB from ISO file or img file this tutorial will work for you. I try to make this video tutorial for all platform users like windows, Linux and Mac so whatever. Installations from a USB flash drive have become one of the easiest ways to update your computer with a new operating system. A USB installation is quick, extremely portable, and has the bonus of reverting to a storage device following the install. You’ll find a fair few ISO to USB tools out there. Iso to usb mac tool, By using sudo dd, there is little margin for error, and a wrongly implicated disk identif. If you guys want to make bootable USB from ISO file or img file this tutorial will work for you. I try to make this video tutorial for all platform users like windows, Linux and Mac so whatever.
Jun 22, 2015 Windows 10 is able to run on all modern Mac hardware in a dual boot environment thanks to Boot Camp. If you’re aiming to run Windows alongside OS X on the same Mac, you’ll want to create a bootable Windows 10 installer drive out of a USB drive, which can be done quickly from OS X and the Boot Camp Assistant tool. In order to create a bootable USB drive, for Windows 10, select the Windows 10 ISO file that you downloaded earlier. This has most likely been downloaded the the Downloads folder. If so, Boot Camp Assistant may well have identified it and pre-populated the path in the ISO image field.
Creating installation media for your operating system of choice used to be simple. Just download an ISO and burn it to CD or DVD. Now we’re using USB drives, and the process is a little different for each operating system.
You can’t just copy files from an ISO disc image directly onto your USB drive. The USB drive’s data partition needs to be made bootable, for one thing. This process will usually wipe your USB drive or SD card.
Use a USB 3.0 Drive, If You Can
USB 2.0 has been around forever, and everything supports it, but it’s notoriously slow. You’ll be much better off making the upgrade to USB 3.0 since the prices have dropped dramatically, and the speed increases are enormous… you can get 10x the speed.
And speed really matters when you’re making a boot drive.
Editor’s Note: We use this Silicon Power USB 3.0 drive here at How-To Geek, and at $15 for a 32 GB version, it’s well worth the upgrade. You can even get it in sizes up to 128 GB if you want.
Don’t worry about compatibility, these faster drives are fully compatible with an old USB 2.0 system, you just won’t get the speed boosts. And if your desktop computer doesn’t support USB 3.0 you can always upgrade it to add support.
For Windows 7, 8, or 10
RELATED:Where to Download Windows 10, 8.1, and 7 ISOs Legally
Use Microsoft’s own Windows USB/DVD download tool to create a bootable drive you can install Windows from. You’ll need a Windows installer ISO file to run this tool. If you don’t have one, you can download Windows 10, 8, or 7 installation media for free — you’ll need a legitimate product key to use them, though.
Provide the ISO file and a USB flash drive and the tool will create a bootable drive.
RELATED:How to do a Clean Install of Windows 10 the Easy Way
Alternatively, if you’re installing Windows 10, you can download an ISO or burn Windows 10 installation media directly using Microsoft’s Media Creation Tool.
From a Linux ISO
RELATED:How to Create a Bootable Linux USB Flash Drive, the Easy Way
There are many tools that can do this job for you, but we recommend a free program called Rufus—it’s faster and more reliable than many of the other tools you’ll see recommended, including UNetbootin.
Download the Linux distribution you want to use in .ISO form. Run the tool, select your desired distribution, browse to your downloaded ISO file, and choose the USB drive you want to use. The tool will do the rest. You can see a full step-by-step guide here.
You can use similar tools on Linux. For example, Ubuntu includes a Startup Disk Creator tool for creating bootable Ubuntu USB drives.
From an IMG File
Some operating system projects provide an IMG file instead of an ISO file. An IMG file is a raw disk image that needs to be written directly to a USB drive.
Use Win32 Disk Imager to write an IMG file to a USB drive or SD card. Provide a downloaded IMG file and the tool will write it directly to your drive, erasing its current contents. You can also use this tool to create IMG files from USB drives and SD cards.
Linux users can use the dd command to directly write an IMG file’s contents to a removable media device. Insert the removable media and run the following command on Ubuntu:
Replace /home/user/file.img with the path to the IMG file on your file system and /dev/sdX with the path to your USB or SD card device. Be very careful to specify the correct disk path here — if you specify the path to your system drive instead, you’ll write the contents of the image to your operating system drive and corrupt it
For DOS
RELATED:How to Create a Bootable DOS USB Drive
If you need to boot into DOS to use a low-level firmware upgrade, BIOS update, or system tool that still requires DOS for some reason, you can use the Rufus tool to create a bootable DOS USB drive.
Rufus uses FreeDOS, an open-source implementation of DOS that should run whatever DOS program you need to use.
From Mac OS X Installation Files
RELATED:How to Wipe Your Mac and Reinstall macOS from Scratch
You can create a bootable drive with Mac OS X on it by downloading the latest version of OS X from the Mac App Store. Use Apple’s included “createinstallmedia” tool in a terminal or by run the third-party DiskMaker X tool.
The Mac OS X drive can be used to install OS X on other Macs or upgrade them to the latest version without any long downloads.
From a Windows ISO for Mac
RELATED:How to Install Windows on a Mac With Boot Camp
If you plan on installing Windows on a Mac via Boot Camp, don’t bother creating a bootable USB drive in the usual way. Use your Mac’s Boot Camp tool to start setting things up and it will walk you through creating a bootable Windows installation drive with Apple’s drivers and Boot Camp utilities integrated.
You can use this drive to install Windows on multiple Macs, but don’t use it to install Windows on non-Apple PCs.
Some of these tools overlap — for example, Rufus can also be used to create bootable drives from Linux ISOs, IMG files, and even Windows ISO Files. We suggested the most popular, widely recommended tools for each task here.
Image Credit: USBMemoryDirect on Flickr
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My MBA 2012 with OS X 10.9.4 Mavericks won't boot anymore - it simply freezes after the initial jingle. I already tried resetting NVRAM and SMC, but to no avail. I don't have any time machine backups.
However, I still have a disc image of Mavericks sitting on an external hard drive, a USB stick and access to a notebook with Windows 7.
I haven't yet found any tutorial on how to create a bootable USB drive on Windows in order to reinstall OS X on my beloved Macbook Air.
Any help would be greatly appreciated!
8 Answers
According to the first answer here, https://superuser.com/questions/383235/create-a-bootable-usb-drive-from-a-dmg-file-on-windows, there's a tool with a free trial called TransMac that can do it. Just make sure the USB drive is formatted with GPT and not MBR.
What might be easier, however, is that that model has support for Internet Recovery. If you boot holding Command-R and you have a WiFi connection, it can actually boot into recovery mode without a recovery partition on a drive (or even without a working drive).
Having said that, your description of a crash right after the boot chime could signify a more serious hardware problem and you may not be able to boot anything. If you boot holding the option key down, the startup disk selection screen should appear. If it crashes anyways, you may be looking at a hardware problem.
I know this question is old but it is still valid. I was never able to write a Mac installer image to my Flash Drive and have it bootable, unless I did it on a Mac. Using Michael D. M. Dryden's Link, I was able to use the Diskpart command to clean and prep a GPT partition on a flash drive for an OSX Mavericks install image.
I used TransMac on Windows 7 to restore the image file I had to the Flash Drive, it created a bootable Mac image on my flash drive. Someone had reported that the method for using DISKPART did not work, but I have done this twice and it works remarkably well, and it's the only method I could find to create a Mac-Bootable Flash. I've been trying to post this to confirm that it works for some time, I just hope it helps someone else, because it is a very easy solution.
Here are the Diskpart commands used to prep the Flash Drive, just to have them here in case my Link does not work:
(Find the disk number)
Disk x is now the selected disk.
DiskPart succeeded in cleaning the disk.
DiskPart successfully converted the selected disk to GPT format.
Note: 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.
I was able to do this with Power ISO on Windows but it cost me $29.99
-- I created an ISO from the original install DVD and then went to tools => Create Bootable USB...Selected the OSX imageSelected the USB drive to create the bootable image onSelected RAW mode
I popped it in my Desklamp iMac (DVD Drive busted from toddlers -- majority of OS was trashed by 5yo) and boom ready to install.
I had this problem with a friend computer, it was an old iMac and I'll tell you it is not going to be easy.
The first thing you have to do is make sure what model you have (the year when your computer has been released) then check on the official apple website to see what is the latest macOS or Mac OS X version available for you computer.
In most of the new mac computer, you can just press cmd+r while booting and the mac will automatically download everything you need to install the system, but the oldest does not have this tool.
In this case, you have to download the dmg file, that can be found on the web, for example, one websites that provides some macOS and Mac OS X is this (for El Capitan, if you need another version, I'm sorry but you have to search for it).
Here things start to get a little tricky.
First of all you have to flash the image on a USB drive, I recommend etcher, that works on everything (Mac, Linux and Windows too) it's extremely easy to use and you just need to select the drive and the image and etcher will do everything by itself, plus it's free here.
When the USB drive is ready you can plug it in you mac and press alt (option) while booting, you have inserted a firmware password, it will ask you to unlock the firmware by inserting that password, else it will take you to all the bootable drives, including your USB device.
If you see the mac logo with a stop icon over it, it means that you downloaded a too new version that is not supported from your mac, else it will start.
When it start, it won't install, saying that the system can't verify the downloaded image, that's why you have to navigate on the 'utilities' menu on the top bar and open the terminal.
Now you have to choices, change the date & time, which can work, but may not.
That's basically because every image of mac has a certificate that can expire, so, if the certificate is expired you won't be able to make it work, unless you change the date (the date is different from mac version to mac version, so based on that you have to change it, usually just search for when was that version released and se the current date to that date or even one or two days later to make it work). Then try to install the system, if this does not work again, you can start the installation without verifying the image, but you should really trust the image you're using from being corrupted or modified (just to make sure the download went right, use the SHA-1 code to make the file has been downloaded right).
So, to proceed without verifying the image, from terminal, type in this command: sudo defaults write com.apple.frameworks.diskimages skip-verify true
then, start the installation. (Is possible that you won't need the sudo at the begin, in that case just remove it from the command and start from 'defaults')
Now you should be able to install macOS from a USB drive...
Just a little thing, make sure to have formatted the disk before proceeding, I would recommend to make a partition that takes the whole disk in mac Journaled format, then if you want you will be able to encrypt the disk (the installer will ask you to do that later), instead, if the disk was encrypted before, you will have to insert the encryption key of the disk to continue the installation process.
Really hope this help, I spent a lot of hours to do this on a really old iMac from 2008... and now it works!
Good luck!
In my humble opinion, the easiest and a free solution for creating bootable drives is Rufus.
JawaUbuntu Iso To Usb Mac
I've been struggling with the same problem but this works for me:
- convert the .dmg image with power iso to iso
- put the iso on a usb stick (drag it into your mac hard drive and mount it)
- format your usb stick with the disk utility tool. (Make sure the usb is partitioned as mac bootable then use use the image recovery and put your mounted OS X iso into the source and your usb as the location.)
- restart your computer while holding down the option key
You can create bootable USB drive on Windows using POWER ISO. You will be able to download a copy of old one version of powerISO by provided links this tutorial.
You need pen drive of more than 8 GB.
I've tried many tutorials on how to create a mac bootable USB drive from Windows but none of them worked. So, I've come up with my own solution that worked fine with any DMG I've tested. Please find the details on my github page.
Iso To Usb Tool For Mac
Windows Usb Iso Tool For Mac
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