Forums
New posts
Articles
Product Reviews
Policies
FAQ
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Menu
Log in
Register
Install the app
Install
Forums
Apple Computing Products:
macOS - Operating System
USB Thumb Drive - Corrupt Files
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="MacInWin" data-source="post: 1904124" data-attributes="member: 396914"><p>Thanks for the background, with your experience we can get more tech-y in the suggestions. First up is to run First Aid on the USB to see that it is ok. You do that from Disk Utility, in the Utilities folder of the Applications folder. Start with Disk Utility, then on the top bar of the window, click "View" and then "Show All Devices" to see the hardware level in the left sidebar. Now click on the hardware level item for the USB drive (typically has the vendor name it in, but in all cases it's the least indented level on the sidebar). Then click on First Aid and let it run. That will check the drive for errors at a gross level. If the USB drive has errors, you can try to reformat it, but I have found that once they stumble, USB drives soon fail totally. Assuming it's a stick thumb drive, they aren't that expensive to replace. And they should work well with APFS or HFS+, I have sticks with both kinds happily working in my MBP. If it tests ok at the hardware level, repeat at the Container (if APFS) or partition (if HFS+) level. Finally, for APFS you can run First Aid at the Volume level, but if it tested ok at Container, it most likely will also test ok at Volume level.</p><p></p><p>If no errors, then I'm stumped as to why copy/paste would break a file. I've never seen that. How are you doing the copy? Using Finder? Any messages during the copy process?</p><p></p><p>DMG files are disk images, sort of like ISO for Windows. I'm not sure what you meant by </p><p></p><p>Do you mean they mount ok, but not from the USB thumb? </p><p></p><p>Frankly, with all the issues, I think it's the drive gone bad. You can experiment with it, but the simplest solution is to just replace it.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1904124, member: 396914"] Thanks for the background, with your experience we can get more tech-y in the suggestions. First up is to run First Aid on the USB to see that it is ok. You do that from Disk Utility, in the Utilities folder of the Applications folder. Start with Disk Utility, then on the top bar of the window, click "View" and then "Show All Devices" to see the hardware level in the left sidebar. Now click on the hardware level item for the USB drive (typically has the vendor name it in, but in all cases it's the least indented level on the sidebar). Then click on First Aid and let it run. That will check the drive for errors at a gross level. If the USB drive has errors, you can try to reformat it, but I have found that once they stumble, USB drives soon fail totally. Assuming it's a stick thumb drive, they aren't that expensive to replace. And they should work well with APFS or HFS+, I have sticks with both kinds happily working in my MBP. If it tests ok at the hardware level, repeat at the Container (if APFS) or partition (if HFS+) level. Finally, for APFS you can run First Aid at the Volume level, but if it tested ok at Container, it most likely will also test ok at Volume level. If no errors, then I'm stumped as to why copy/paste would break a file. I've never seen that. How are you doing the copy? Using Finder? Any messages during the copy process? DMG files are disk images, sort of like ISO for Windows. I'm not sure what you meant by Do you mean they mount ok, but not from the USB thumb? Frankly, with all the issues, I think it's the drive gone bad. You can experiment with it, but the simplest solution is to just replace it. [/QUOTE]
Verification
Name this item. 🍎
Post reply
Forums
Apple Computing Products:
macOS - Operating System
USB Thumb Drive - Corrupt Files
Top
