(One intermediate revision by the same user not shown)
Line 18:
Line 18:
#* If the Scheme pop-up menu is not available, make sure you selected the storage device you want to erase — it’s at the top of the hierarchy.
#* If the Scheme pop-up menu is not available, make sure you selected the storage device you want to erase — it’s at the top of the hierarchy.
# Click the Format pop-up menu, then choose <code>MS-DOS (FAT)</code>.
# Click the Format pop-up menu, then choose <code>MS-DOS (FAT)</code>.
# Enter a name for the new partition that does not begin with <code>3ds</code> nor <code>wiiu</code>.
# Enter a name for the new partition.
# Click Erase, then click Done.
# Click Erase, then click Done.
# Once the format is complete, copy your data back onto the SD card.
# Once the format is complete, copy your data back onto the SD card.
Line 33:
Line 33:
# Eject each volume on the disk (select the volume in the sidebar, then click the Eject button), then click the Erase button once all volumes are unmounted.
# Eject each volume on the disk (select the volume in the sidebar, then click the Eject button), then click the Erase button once all volumes are unmounted.
# Click the Format pop-up menu, then choose <code>MS-DOS (FAT)</code>.
# Click the Format pop-up menu, then choose <code>MS-DOS (FAT)</code>.
# Enter a name for the new partition that does not begin with <code>3ds</code> nor <code>wiiu</code>.
# Enter a name for the new partition.
# Click Erase, then click Done.
# Click Erase, then click Done.
# Once the format is complete, copy your data back onto the SD card.
# Once the format is complete, copy your data back onto the SD card.
Line 44:
Line 44:
# Select your SD card.
# Select your SD card.
# Click <code>Erase</code> - this option should be at the top of the menu.
# Click <code>Erase</code> - this option should be at the top of the menu.
# Enter a name for the new partition that does not begin with <code>3ds</code> nor <code>wiiu</code>.
# Enter a name for the new partition.
# Choose the format <code>MS-DOS (FAT)</code>.
# Choose the format <code>MS-DOS (FAT)</code>.
# Click Erase, then click Done.
# Click Erase, then click Done.
Line 60:
Line 60:
#* If the system cannot unmount the disk, type <code>diskutil unmountDisk /force /dev/disk#</code> to forcibly unmount it.
#* If the system cannot unmount the disk, type <code>diskutil unmountDisk /force /dev/disk#</code> to forcibly unmount it.
# Type <code>diskutil eraseDisk FAT32 NAME MBRFormat /dev/disk#</code>.
# Type <code>diskutil eraseDisk FAT32 NAME MBRFormat /dev/disk#</code>.
#* Replace <code>#</code> with the disk number, and replace <code>NAME</code> with any name that does not begin with <code>3ds</code> nor <code>wiiu</code>.
#* Replace <code>#</code> with the disk number, and replace <code>NAME</code> with any name.
# Once the format is complete, copy your data back onto the SD card.
# Once the format is complete, copy your data back onto the SD card.
Latest revision as of 18:42, 21 July 2025
This is an add-on section for completely recreating an SD card's filesystem using Disk Utility. This should only be done if formatting does not fix your issue or is not possible for some reason.
This page is for Mac users only. If you are not on Mac, see the Windows and/or Linux pages instead.
Instructions
Before beginning these steps, copy all of your SD card's contents to a folder on your computer.
Double-click Disk Utility in the /Applications/Utilities folder.
Choose View > Show All Devices.
In the sidebar, select the storage device you want to erase, then click the Erase button.
Click the Scheme pop-up menu, then choose Master Boot Record.
If the Scheme pop-up menu is not available, make sure you selected the storage device you want to erase — it’s at the top of the hierarchy.
Click the Format pop-up menu, then choose MS-DOS (FAT).
Enter a name for the new partition.
Click Erase, then click Done.
Once the format is complete, copy your data back onto the SD card.
Double-click Disk Utility in the /Applications/Utilities folder.
Choose View > Show All Devices.
In the sidebar, select the storage device you want to erase.
Eject each volume on the disk (select the volume in the sidebar, then click the Eject button), then click the Erase button once all volumes are unmounted.
Click the Format pop-up menu, then choose MS-DOS (FAT).
Enter a name for the new partition.
Click Erase, then click Done.
Once the format is complete, copy your data back onto the SD card.
Navigate to Disk Utility. To do this, press ⌘ Cmd + SPACE and search for "Disk Utility".
Select your SD card.
Click Erase - this option should be at the top of the menu.
Enter a name for the new partition.
Choose the format MS-DOS (FAT).
Click Erase, then click Done.
Once the format is complete, copy your data back onto the SD card.
Open the Terminal app.
Type diskutil list external physical, then find the SD card and take note of its disk name. It will look like disk2 or disk3.
Once you are sure of the SD card's disk name, type diskutil unmountDisk /dev/disk#, where # is the number in the disk name you found.
If the system cannot unmount the disk, type diskutil unmountDisk /force /dev/disk# to forcibly unmount it.
Type diskutil eraseDisk FAT32 NAME MBRFormat /dev/disk#.
Replace # with the disk number, and replace NAME with any name.
Once the format is complete, copy your data back onto the SD card.
