Select "First Aid" and choose "Run." Your Mac will search for problems and fix any that . In the Terminal window, type df -h and hit Return. EaseUS NTFS for Mac will pops up a window to help Mac get access to the NTFS drive: 1. Type the following command into the terminal and press Enter to start a file system check: /sbin/fsck -fy The command will run through several phases of checks. Step 2. Click the Go menu and select Utilities. Choose your USB drive from the list on the left and click on the icon with the two cogs. Open Disk Utility, select the USB drive, and click the . Price: $129.99 Verdict TechTool Protogo is a Swiss Army knife-type repair disk utility that has been around since the days of Macintosh. Even if you can't repair your Mac's recovery partition, don't panic! When Terminal displays information about available volumes, look for the line with the name of your external drive and make a note of the identifier displayed on the same line. Select it, then press the "Search for last data" button on the bottom of the display. Step 3 - Access the pen drive via right-clicking the properties tab, then click on the Tools tab using . mount -uw /. Step 2: While rebooting, hold down the Option key button to select the attached boot drive. Step 2: Click "Finder" from the Mac's Dock. Click on OK to continue and format your drive. The sidebar in Disk Utility should now show each available disk or other storage device, beginning with your startup disk. Here, "diskos#" is your EX-FAT and "-d" flag is the debug flag, and it gives hope to repair a damaged ex-FAT partition. Click Disk Utility. Select the USB drive as a startup disk when the option appears. Level 1 (33 points) Q: How to reformat a usb drive to its full capacity I bought a (genuine) 256 GB USB drive from Sandisk. Step 3. The mount command is required as your hard drive is mounted as read-only, by default. Connect your USB drive to your Mac via a connection cable. Drag them to the "Full Disk Access" list. Step 2. For internal SSD, start or restart your Mac and hold Command + R keys. Select the Erase tab. Download an Ubuntu OS ISO file and use it to create a bootable USB drive. Once you created a bootable Ubuntu USB drive, connect to the machine and restart your machine and press the boot devices to associate keys e.g. F12, to . Fix 6. Choose the external disk in the Disk Utility sidebar. Here, double-click the "Terminal" application to run it. After connecting the USB drive to your Mac system, open Terminal. 3. Can be used to remedy logical damage to data. Release them when the Apple logo appears. Plug the USB which is not showing up to your Mac computer. Then go to Sidebar and check Hard disks and External disks there as well. 2. Install the operating system from the macOS utilities. Then, go to the removable disk icon under the "My Computer" icon list. Initially, the capacity was 256 GB and I reformatted it to ExFAT and still, it was showing a capacity of 256 GB. Type unmount /dev/disk4s1 and hit Return. Step 3. Step 3: Right-click on the USB partition and click the Format option from the context menu. 2. Next you can type the command diskpart in Command Prompt window. Here is the tutorial on formatting the USB disk with Disk Management. Open macOS Finder > Applications > Utilities > Disk Utility. External hard drive connected to the USB port of an AirPort Extreme Base Station (802.11ac) on your network Fix 2. And then click OK to open Disk Management. 4.- On the screen it will display you all the Disk it detects connected to your Mac select the one that got damaged partition tables and press Enter. Disk Utility will repair any errors on the drive automatically. In the Utilities menu, select Disk Utility. Click the gear icon and select the Format Partition option from the drop-down menu. 1. The command is a single line of text, though it may appear as multiple lines in your browser. How to partition an SD card/USB drive/external hard drive on Mac with Terminal: Launch Terminal from the Applications > Utilities folder. 1. To repair a disk from the command line, type or paste the following command into terminal: diskutil repairvolume /Volumes/ [drive identifier]/ and press Return. Once the formatting is complete, you'll find that your computer now shows the full storage capacity of your USB drive. Type in the command below and press Enter to list all devices connected to your Mac. The following steps show you how to fix a corrupted USB flash drive on Mac with Disk Utility. Reserved Secs - enter 32. Once you're inside the terminal app, type the following command to effectively identify the path of the drive that's causing the Couldn't modify partition map error: diskutil list. From the utilities window in macOS Recovery, select Disk Utility and click Continue. Select your hard drive from the list of available hard drives on the left menu. Step 3. Displays the names of files and subdirectories containing in the folder. Compatible with the driveless MacBook Air, as well as Macbook Pro Retina, iMac and Mac mini. Step 2 - Windows 10 should automatically detect the USB flash drive. iFixit Opening Tool. For how to open a flash drive on Mac, follow the stpes below: Step 1: Connect your USB flash drive into your Mac's USB port. On the Disk Utility window, click the "View" button and click "Show All Devices.". To run this tool, follow the steps below. -bash-3.2# ls. You'll get a prompt warning you all the data on the drive will be lost. Step 2. Enter your system password when prompted and press Return to authenticate the process. Then click on First Aid tab and select Verify Disk. On Finder, go to "Applications" > "Utilities" > Double-click "Disk Utility". These are very helpful when you want to list the contents of a folder. Disks is pre-installed on Ubuntu. Once you open it, type in this command: diskutil repairVolume /Volumes/ [Drive Name] You would replace "Drive Name" with the name of your hard drive on the Mac that requires repair. Select Applications. Restart Mac computer, press the Command +Option+P+R keys until the Apple logo appears. Turn on your Mac, then immediately press and hold Command-R to start up from macOS Recovery . Click First Aid at the top of the window, and then click Run. Reset USB ports on Mac to detect a USB drive Step 1. To create the bootable installer, plug the USB drive into your current Mac. Click on the Run button. Type in a name for the reformatted drive. Choose Run in the confirmation window. Step 5. To create the bootable installer, plug the USB drive into your current Mac. There are two different solutions to fix a corrupted ex-FAT partition on macOS. Choose Utilities. Step 2. pwd. Follow Preferences General Show these items on the desktop. Press Command+Option+Esc keys to close all applications that are not responding. Here's how to how to format USB stick for Mac and Windows PC using the terminal command line: Step 1 First, go to the "Applications">" Utilities". 3. Some Macs don't have USB ports, so you'll need to purchase an adapter. Key in "diskutil list" and press "Enter" key to see the list of connected drives and findyour USB drive's name. Once the window opens, type diskpart, and press Enter: N.B. Repair your USB with First Aid if it doesn't show up. Select the USB disk in the left panel. Wait until the repair process finishes. You'll get a warning but continue. 3. Reformatting (Mac) 1 Connect the USB flash drive to your computer. This bootable USB drive should have the Ubuntu OS image inside it. These commands are the most commonly used set of commands. Step 3. 4. In general, to find where something is mounted, you can run this command from the terminal: df -H. This also provides useful information about the space on the drive. Note down the file system identifier of the external hard drive, say /dev/disk4s1. Step 5: Type ' diskutil verifyDisk /dev/disk2 ' when disk2 must be replaced by your own memory card drive volume. (You'll be shown a list of disks attached to your Mac. Step 1: Press "Windows + R" keys simultaneously. Restart your Mac and see if the issue continues. 1) With Disk Utility open, select the drive as you did in step 2 of the SMART status instructions earlier in this article. Make sure you tick the boxes next to External disks and Hard disks. Select your disk in Disk Utility Choose View > Show All Devices (if available) from the menu bar or toolbar in Disk Utility. Step 1: Open Applications > Utilities > Disk Utility on your Mac. Step 1: Insert the USB boot drive to Mac and reboot the system. Launch Terminal.app from the Utilities folder and run the below-mentioned command line. When it has finished it will list the FSCK files it has created. In the First Aid dialog, click Run, then follow the onscreen instructions. Step 2. Once it has finished scanning, you'll be able . OS X Base System macOS High Sierra. If you don't see Go, first click the Finder icon, which resembles a blue face in your Mac's dock. Type diskutil resetFusion in the Terminal window, then press Return. How to reformat an external drive: With the drive plugged into your Mac, go to Applications > Utilities and launch Disk Utility. Select "Full Disk Access", click the Lock icon and enter admin password to unlock it. To repair a corrupt APFS or HFS+ formatted SSD, follow the given steps: For external SSD, navigate to Finder > Application > Utilities. Go to Applications > Utilities > Disk Utility. Turn on your system and connect your USB Drive to your Mac system Press "CMD + Space Bar" Now type terminal and open "Terminal" Now here type command "diskutil" It will open the list of all disks that are connected to your mac. Download and install Disk Drill for Mac, then connect your flash drive to your computer. After discovering the corrupted hard drive, you can repair it through the Terminal. Once your Mac has booted, try re-running the 'diskutil list' Terminal command, to see whether this has resolved the issue. These will help you make sure you have selected the right drive. The best way to enter the command is to triple-click select the entire command, copy ( Command + C) the text to your clipboard and then paste ( Command + V) the text into Terminal, next to the command prompt. Select your USB drive from the left pane. Select the two icons of NTFS for Mac. -bash-3.2# cd /volumes. Click "Run" to continue. In the Disk Utility app, select the problem drive and then click on the First Aid button. When the First Aid process is complete, click Done. Steven C. Howell. Click Run in the First Aid dialog and follow the onscreen instructions. Double-click "Disk Utility" to open this tool. Open Disk Utility by opening Finder > Applications > Utilities, and double-clicking Disk Utility. Step 2. When the Terminal window appears, type the following command to see a list of volumes connected to the Mac: diskutil list. Just as before, I'll use SD as my drive identifier. Press Enter to launch DiskPart utility. Be sure to replace "USB" with the name of your formatted USB drive: sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/USB If you're not installing Mojave, change the path to the correct name. Reformat USB Flash Drive. Note down the disk identifier of the drive you want to partition, such as disk2. As long as you have an active Internet connection, you can reinstall macOS via Internet Recovery instead. After you get the full list of devices, type the following command after modifying it accordingly to effectively erase the problematic device in order to reset . Launch EaseUS Data Recovery Wizard for Mac, select the external disk and click "Scan" to let the software search lost files on it. Click the Go menu and select Utilities. In the sidebar, select a container, then click the First Aid button . This shows which disk devices are present in the system. You can name. Mac OS X comes with an easy-to-use application, called Disk Utility, that allows users to verify and repair hard disks using a graphical user interface and it is recommended for most Mac users that are not comfortable using the terminal.However, this can also be performed using the command-line. If DISKS can fix the drive it may create a number of FSCK files on the drive. After some time, you will see some message on the screen. Plug it into one of your Mac's USB ports. Once you know where it is, type select disk and enter the number of the USB drive, SD card, or hard disk: Use the steps given below to create a Windows 10 bootable USB on Mac using Terminal. It's a menu item in the top-left side of the menu bar. Steps to repair Mac external hard drive by using Terminal are as follows: Go to Finder > Applications > Utilities > Terminal. Type the preferred name for the USB drive. Fix 3. Select the corrupted drive or Generic Flash Disk Media from the sidebar. Installing macOS via Internet Recovery. Press Erase. Take note of which drive you selected, in my case I chosed /dev/rdisk1 (rather than /dev/disk1) 5.- Click the Gear Wheels and on the sub-menu look about 7 items down for "Repair Filesystem". You can even copy data from internal hard drive ( user's home folder ) to an external USB drive to save them. 2. Check your AirPort Base Station This command unmounts the external drive. 2. Its latest version may not be as popular as some of the older versions, but its disk repair capabilities are still impressive. Repeat steps 2 through 4 for each volume on the storage device. Press and hold the Option (Alt) key on the keyboard when the computer starts. Repair USB flash drive with First Aid if it doesn't show up Step 1. diskutil erasedisk FAT32 MBRFormat /dev/disk3s2 (disk identifier). Then click the Erase button at the top of the right panel. Step 4: Type ' diskutil list '. diskutil list. Please run First Aid to repair your USB flash drive: Open Finder. Run the command "diskutil eraseDisk MS-DOS "WINDOWS10" GPT<drive . How to Repair a Mac Disk with fsck from Single User Mode Aug 7, 2013 - 92 Comments Boot the Mac into Single User Mode by holding down Command+S during system boot after you hear the boot chime, you know you will have successfully entered Single User Mode because you will see a bunch of white text on a black background scroll by Type in diskutil verifyVolume [drive identifier], then press Enter. 3. After a quick scan and deep scan, all files will be presented in the left panel in the scan results. Make sure your USB drive is securely connected to your Mac. First, the First Aid module will check if the device has any problems. 4. 1) sudo fsck_exfat -d diskos#. Check Your Mac Make sure that your Mac software is up to date. Open Disk Drill and find your flash drive from the list of drives that show up. The Apple USB SuperDrive adds DVD-A read/write capability to the MacBook Air SuperDrive repertoire, but remains mechanically the same. When it's done, you'll see a message saying "** The volume [name] appears to be OK" if everything is fine. Open Disk Utility and choose View > Show All Devices. Method 3: Use the terminal application; Method 4: Repair with a recovering partition; Method 1: Right Steps to Unmount Volume for Repair on Disk Utility. edited Jan 23, 2017 at 21:32. answered Sep 15, 2015 at 14:16. Step 2. Select MacOS Extended (Journaled) from the dropdown menu. Click on Finder on your Mac and choose Utilities. DiskWarrior 5 Go to Finder, click "Applications" and "Utilities". How to Repair a Disk on Mac OS X from Command Line. A straightforward tool for this job is balenaEtcher. Diskutil list. Share. Select ExFAT in the Format drop-down list and begin to format. Select USB flash drive on the left panel of Disk Utility, and click 'First Aid' at the top toolbar and click 'Run'. Let's try using Disk Utility for format a flash drive to FAT32 on Mac: Step 1. $17.99. Step 3. 2. Step 2 Now, you need to run the command i.e. Once the black window appears, type list disk, then press Enter: Next, find your USB drive or SD card. The tool will pop up a message box. Step 1. Now run this command - ls /dev/disk*. It is possible to repair bad sectors using a built-in repair tool on your Mac. If any errors found, it will ask for permission to fix the errors. Select the read-only USB drive, click "First Aid" at the top pane, and click "Run". Select files you want to recover and click the "Recover" button. View. Open Disk Utility, select the USB drive, and click the Erase icon. Step 3: Format the USB Drive. You will see this dialog: (Click Run to begin the First Aid check and repair of a drive.) When the format process is completed successfully, you can copy files from macOS to a USB disk successfully. Click Done when the First Aid process finishes. Here are the complete list of terminal commands that I typed to free up some space on the startup disk. Press the Windows + R keys. Click " Quit & Restore" to re-launch EaseUS NTFS for Mac. Choose the USB drive from the left side menu, click the "Partition" tab, select "1 Partition" from the drop down menu, and then click the "Options" button to select "GUID" as the partition type, click "OK" then click "Apply" Launch Terminal to show hidden files and relaunch the Finder using this defaults command string: Click First Aid at the top of the right pane. Hit Enter. Next, double-click Disk Utility to launch the disk management app. Disk Utility might say that the drive was successfully repaired. Step 1 - Insert/connect the USB flash drive or hard drive into the computer system USB port. Step 3: Click the name of your USB flash drive in the left pane under "Devices." Doing so opens the flash drive and displays its contents in the right pane. Sample of Mac Terminal Command in Recovery Mode. Choose "Repair Filesystem" and follow the steps of the wizard to fix the filesystem. ls -l. In the sidebar, select a volume, then click the First Aid button . Visit your apps menu and search for "disks." Launch the app when you locate it. If you wish to target a different drive, insert the name of that drive instead of SD. 2. Release the keys when you see the Apple logo or spinning globe. To get rid of the errors, you can run First Aid on the USB drive with the following steps. Now, instead of having a full capacity of my drive, I get a 6 GB. Print working directory (Outputs the address of the current directory ) ls. Now, plug in your USB drive. Connect the read-only USB drive to Mac. One easy way is: press Windows + R, type cmd in Run dialog, press Ctrl + Shift + Enter and click Yes to run Command Prompt as administrator. 2 Click Go. Format USB on Mac with Disk Utility [Easier] Make sure that you've backed up all USB data in advance before following this guide to format USB on Mac: Step 1. Repair usb drive mac command line. Can I repair my Mac hard disks without using fsck? This will provide a list of all the mounted drives on your Mac system. I initially used it to make a bootable drive. Step 3: Start disk utility. Start LBA - enter 1. Yes, you can also use Disk Utility to repair a hard drive on your Mac. Verify and Repair a Mac Disk via Command Line in Terminal Watch on Step 1 - Reboot your MAC and press Command + R during the reboot and get into mac recovery mode Step 2 - Click Disk Utility Step 3 - Select your flash drive on the left panel of disk utility -> First Aid -> Repair Disk and run it. In Windows XP, you will need to type diskpart.exe. 2) Click the First Aid button. 3 For example, above it is 'disk2s1'. First, check what disk# your usb is (to be certain) in a terminal: sudo diskUtil list then sudo dd if=/dev/urandom of=/dev/<your_usb_disk_here> bs=1m If you get busy error and/or if the usb is in use elsewhere, stop what you are doing there and unmount it first as Mark Setchell said sudo diskutil unmountDisk /dev/<your_usb_disk_here> In this video we show some Terminal commands that allow you to have a bit more control over Verifying and Repairing your Hard Drive or any External Disk or U. The fsck command will take a while to run. Choose the file system format and click on the Next button. Step 2: Enter "diskmgmt.msc" in the Run box. When you see the macOS Utilities window, choose Utilities > Terminal from the menu bar. Optionally, enable the Erase option to overwrite the existing data from the USB drive. Step 1: Insert memory card sd/cf/xd to MAC with a card adaptor.

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