There are a few additional considerations when booting the usb stick on apple hardware. The sidebar in disk utility should now show each available disk or other storage device, beginning with your startup disk. Today i am showing how to make a boot able usb drive for mac using a. Doubleclick disk utility in the applicationsutilities folder. In the disk utility app on your mac, choose view show all devices in the sidebar, select the disk you want to format to use with windows computers. For technical information about creating a restore disk image, see the apple software restore asr manual man page. If youre able to select the drive in the lefthand column, highlight it and click on repair disk under the first aid tab. Start up from macos recovery, then choose disk utility from the macos utilities window. Nov 30, 2019 disk utility is free and included with every copy of the mac os. Encrypt and protect a storage device with a password in disk utility. Partition a physical disk in disk utility on mac apple support. Create a disk image using disk utility on mac apple support.
This will make it so that you can view the containing drive like apple ssd rather than simply the partition or volume that is accessible by the user facing part of the file system like macintosh hd. Using the terminal command, we remove the usb forcefully and do the clean format. If i formatted the usb key without changing the scheme to mbr, i could not read it on a windows machine. Disk utility will create a digital clone of your system disk in the apple disk image format dmg that will then be used to make the usb.
Apfsformatted volumes automatically grow and shrinkyou never have to repartition a storage device again. Tucked away in the utilities folder, disk utility and its first aid feature can be used to check if a disk is damaged and repair it, create a disk image, partition a disk, and so much more. With apple file system apfs, the file system introduced in macos 10. How to start up your mac from a bootable cddvd, usb thumb. In order to create a bootable drive, you need the install dvd or a copy of it mounted. The upside to the smaller partition is that it gives you enough free space to update the utility. How to create a macos mojave installer on a usb drive. Apr 03, 2017 in this video learn how to clone your internal apple mac hard drive to an external thunderbolt, usb or ssd hard drive and boot from it.
After choosing a save location, leave the image format as compressed and click save to begin ripping the system disk to your hard drive. How to use your macs disk utility to partition, wipe, repair. In the sidebar, select a disk or volume, then click the first aid button. Cant partition usb stick with disk utility partition. You can easily fix this issue using some terminal commands.
I think my only option is to pop it into an old macpro tower, take all the needed files off, format, install. Disk utility will format and partition your flash drive. And beneath each disk you should see any containers and volumes on that disk. How to reformat a usb stick or sd card using macos disk utility. A bootable copy of os x or macos on a usb flash drive is a great emergency backup tool.
Macbook air with retina display macbook pro with retina display imac late 2012 and later. Disk utility first aid object map is in apple community. Jul 20, 2016 since updating to macos sierra, my seagate 1tb harddrive isnt being read or mounted by my retina macbook pro 2014. Aug 02, 2011 the usb drive needs to be formatted as mac os extended journaled, if its not, its time to format it in disk utility usbformatosxextendedlion 6 finally in still in disk utility, select the restore tab drag the mounted volume mac osx base system into the source field and drag the usb drive volume mine is called. For example, if a usb device or volume is 80 gb with 10 gb of data, the disk image will be 80 gb in size and include data and free space. How to burn iso to usb on mac best iso burner software for mac. Cant erase or reformat a drive in macos disk utility. In this example, the startup disk apple hdd has one container and two volumes macintosh hd, macintosh hd data. Whether youre at the office or on the road, you can play and burn both cds and dvds with the apple usb superdrive. Repair a storage device in disk utility on mac apple support. Disk utility first aid object map is in valid more less. In the disk utility app on your mac, choose view show all devices.
The best software for the job is wizdmg, a windowsbased desktop solution for authoring apple s disk image files in a nonmac environment. Or, open a finder window, click applications in the sidebar, doubleclick the. Jun 15, 2017 macos disk utility is perhaps one of the most overlooked and underused programs on a macos computer. Also make it time machine backup drive using the disk utility and time machine. How to show all drive devices in disk utility for macos. Dec 21, 2017 the latest version of disk utility is 18. Encrypt and protect a storage device with a password in disk utility on mac if the device contains any files you want to save, copy them to another storage device or volume. How to format a usb external disk for mac osx using disk utility. On the 32gb usb drive that i use, i set the installer partition at 7gb and use the rest for the utility partition using disk utility before running the diskmaker x utility, a minimum size is probably more like 8gbsuch as using an 8gb usb drive. Using this function, you can easily burn your iso to a disk after mounting it. Also, your pictures and video taken by the iphone can be saved to the usb disk directly. Also make it time machine backup drive using the disk. Click the erase button when youre done and disk utility will format your disk with the. Clone bootable apple mac hard drive from disk utility mac.
How to fix erase process has failed issue using terminal command. In disk utility on your mac, add, delete, erase, or enlarge a partition on a storage device. Ydisk is the management software for usb disk made for iphone. How to create a bootable usb drive for disk utility. Apple recommends using at least a 12 gb flash drive as a bootable installer. Sep 14, 2015 how to start up your mac from an external usb storage device if your usb thumb drive, usbbased external disk or flash storage contains a usable operating system or an os x installer, you can select it at boot time using os xs builtin feature called startup manager, which can be invoked via a simple keystroke. Repair a storage device in disk utility on mac in the disk utility app on your mac, choose view show all devices. Click the erase button click the scheme popup menu, then choose master boot record. In the sidebar, select the disk you want to format to use with windows computers. Mar 25, 2020 a macos usb installer saves much time when you want to install the os offline on two or more macs.
And while the various cloning apps have a lot more features, if you dont have access to thirdparty apps, using disk utility will create a perfectly usable clone, although it may require a few more steps and lacks some nice features, such as automation and scheduling. Click the scheme popup menu, then choose master boot record. Select usb flash drive on the left panel of disk utility, and click first aid at the top toolbar and click run. In this tutorial we look at formatting disks via the gui app called disk utility and its equivalent command line tool diskutil. Also, it helps in recovering a system after a startup failure. Apple system disk for mac free download and software. Only slightly bigger than a cd case, the apple usb superdrive slips easily into your travel.
In disk utility on your mac, you can format an external disk for a windows computer. Use startup security utility to make sure that your mac always starts up from your designated startup disk, and always from a legitimate, trusted operating system. If the disk doesnt appear in the list of available drives, quit disk utility, reboot the drive and launch disk utility again. Creating a bootable mac os x usb drive, plus utilities. Emergency mac os boot device using a usb flash drive lifewire.
Making bootable usb of mac os x with disk utility youtube. Apple usb superdrive with attached usb typea connector cable. It wont let me boot into a siera usb for some reason. Disk utility creates the disk image file where you saved it in the finder and mounts its disk icon on your desktop and in the finder sidebar. External hard drive not mounting apple developer forums. Creation, conversion, backup, compression and encryption of logical volume images from a wide range of formats read by disk utility to. So, from the view menu choose show all devices and then you will be able to see the actual usb device that holds this volume and erase it. Select the usb drive and click unmount at the top toolbar, unplug the usb and plug it back in 1015. Erase and reformat a storage device in disk utility on mac. But this step can be skipped if you intend to use the usb stick with only generic pc hardware. Launch disk utility from applicationsutilities or spotlight search. If you want to erase any other type of disk or volume. Disk utility is a system utility for performing disk and disk volume related tasks on the macos operating system by apple inc.
Jul 28, 20 all external usb disks can be formatted to work on mac osx, but not always straight out of the box. Its perfect when you want to watch a dvd movie, install software, create backup discs, and more. How can i burn an iso to usb without usin apple community. Format a disk for windows computers in disk utility on mac. Clone bootable apple mac hard drive from disk utility mac os.
Disk utility the default iso to usb buner solid for old macs disk utility is a builtin tool that comes with mac os x and macos. Solved erase process has failed when formatting usb mac. Clone bootable apple mac hard drive from disk utility mac os sierra 2017. With ydish app, you can back up your photos and contacts from your iphone easily. External hd not showing in disk utility mac support. The functions currently supported by disk utility include. If youre erasing an external drive, make sure that its connected directly to your mac using a cable that you know is. To ensure maximum compatibility with apple hardware, were going to first blank and reformat the usb stick using apples disk utility. In the sidebar, select the storage device you want to. Macdisk is an utility for reading, writing and formatting apple macintosh magnetic media on an ibm compatible pc, without any hardware modification of the computer and without any addon. Format a disk for windows computers in disk utility on mac apple. If you want to erase your startup disk or startup volume. One of the best features is being able to reformat a usb stick, a sd card, or even an entire harddrive at the click of a button.
This is because apples startup manager, summoned by holding the. If your disk or volume doesnt appear, or the erase fails shut down your mac, then unplug all nonessential devices from your mac. How to burn dmg to usb in windows 10 bootable since windows doesnt natively support dmg files, you will need to first download and install a utility that can handle such disk images. Disk utility cannot erase usb drive apple community. Disk utility will repair any errors on the drive automatically. It is easy to make a macos usb disk from the full installer downloaded from the app store. In previous versions of macos, i recall that disk utility provided an option to select the partition scheme guid, mbr, or apple. Choose where you want to save the disk image and what you want to name it. Doubleclick disk utility in the applications utilities folder. Disk utility is apple s program to help repair and mount damaged drives. Available only on mac computers that have the apple t2 security chip, startup security utility offers three features to help secure your mac against unauthorized access. In disk utility on your mac, protect sensitive information on a storage device by requiring users to enter a password to access its files. You can also click the launchpad icon on your dock, click the other folder, and then click disk utility.
Apparently this is a volume and cant be erased due to unsupported partitioning scheme. How to repair a mac disk with disk utility apple support. Macdisk is a 32bit application and runs under all recent versions of windows vista and 78 included, even 64 bits. Formatting a disk or volume erases all the files on it. Aug 16, 2019 you can adjust a setting in disk utility for mac to see all device disks and drives connected to a mac. Disk utility fails to show any disks macrumors forums. No partition scheme option when erasing a usb disk in macos. Erase and reformat a storage device in disk utility on mac apple. Encrypt and protect a storage device with a password in disk.