Apple disk utility format ssd4/1/2024 ![]() When I try to move an app to the ssd, it says: "The operation can't be completed because an unexpected error occurred (error code -50)" Try moving the archive to another volume" When I try to write, read data or expand zip files inside the ssd, it shows the error: "Error identifying a writable temporary folder. ![]() How can I fix these errors?ĮRRORS: (Sorry, I could not upload the screenshots due to storage limit) It worked well once but then, there were problems while reading and writing. I erased from a Windows PC then initialized on the Mac and tried again. Then, I partitioned it into 3 parts (2 of them Mac OS extended, 1 ExFat). First I partitioned into two Mac OS extended parts. I tried also other formatting types and there were no problems. I recently bought a MacBook Pro M1 and a SanDisk external ssd. P.S.: I tried all formatting types(APFS, Mac OS extended, ExFAT) and still got the same result.Įxternal SSD formatting problem Hi everyone, But after some documents, I get the same result. It worked but after I write two documents (pdf or zip file containing pdfs) on my ssd, it fails again. This time it says 'The volume on disk4 couldn’t be unmounted because it is in use by process 0 (kernel).Couldn’t unmount disk. ![]() : (5)' Also, I can not erase it from the Disk Utility. POSIX reports: The operation couldn’t be completed. I get the error message 'Fixing damaged partition map. It can not write or read data and sometimes ejects it by itself. However, when I use it on my Mac (with the applicable format), it works at first but fails later. The external ssd works well on a Windows computer. I recently bought a MacBook Pro M1 and a Sandisk SSD. The external disk is connected with USB-C.Įxternal SSD malfunctions on a Macbook Pro M1 but works on Windows Hi everyone, I'm using a MacBook Pro (15-inch, 2019) with Catalina 10.15.7. Is there a way of telling whether there's any progress being made or it's stuck? Should I let it keep going? If so, how long? Disk Utility won't let me do anything else in the meantime, won't eject the disk and won't quit, so if I want to quit I'd have to either Force Quit or restart my computer, which might also involve force quitting. (It says Erasing "SanDisk Extreme SSD Media" and creating "SanDisk" (I put in a shorter name), underneath a thermometer that's blue all the way, left to right, and hasn't changed, and underneath it says "Running." Underneath that, the details it shows are the same as above, a repeat of Erasing "SanDisk Extreme SSD Media" and creating "SanDisk".) The disk itself is warm. It's now been running for a day and a half, with no indication of status. I opened Disk Utility to erase and reformat it. WARNING: Formatting the drive will erase all data on the drive, so you should copy any data you want off the drive prior to formatting.I just bought a SanDisk Exteme 500GB external SSD drive. If APFS is not available then the drive is in MBR and not GUID Partition Map. NOTE: Make sure that Scheme is set to GUID Partition Map and not Master Boot Record (MBR). Check step 2 to confirm Disk Utility is Showing All Devices NOTE: If you don’t see Scheme, then make sure that all devices are showing and the non-indented entry is selected. Select the non-indented entry, you will see Media in the nameĬlick the button labelled Erase in the menu which will bring up this window.Click View in the upper left and select Show All Devices.To open Disk Utility - Open Finder > Applications > Utilities > Disk Utility Note: If you would prefer a video tutorial of these steps instead, please click the thumbnail below. IMPORTANT: Reformatting the drive will erase all data on the drive, so you should copy any data you want off the drive prior to formatting. Click here to see other formatting options for your operating system.Looking for a different formatting option? If you need to go between macOS and Windows then format your drive ExFAT APFS does not natively work with Windows.Starting with macOS (Big Sur), APFS is now the default for Time Machine.APFS is only available when Scheme is set to ‘GUID Partition Map’, APFS will not be shown when Scheme is set to Master Boot Record – See Step 6.APFS is not officially supported for macOS versions prior to 10.13 (High Sierra), and will not mount on 10.12 and earlier.It is important to keep the following in mind when formatting to APFS: Not seeing your version of macOS? Click here to see other versions of macOS and different formatting options.Not sure which version you are using? Click here to determine your version of macOS.IMPORTANT: This article applies to the following macOS version:
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