Hardware :: Thumb Drive Emptying Not Working?
Oct 22, 2010
I wanted to put something on thumb drive to transfer over to my other mac but it was too big for it so I made space by transferring some of the files on to my mac. I ended up emptying out my thumb drive to make room. So I had to delete the files on my thumb drive once I moved the files to my mac since moving them basically just makes copies. However, my empty thumb drive still reads as if nothing was ever removed. I have a empty 4GB thumb drive that says I only have 1 plus GB left?
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Jan 5, 2010
I have this folder in my trash which i am damn sure is not in use. Every time i try to empty trash it says item is in use.
how to resolve this issue?
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Oct 9, 2010
I'm trying to install ubuntu from a thumb drive. Basically, I'm converting the .iso to an .img, and restore the thumb drive from the .img, trying to make it bootable. I'm following the procedure form the ubuntu website. Drag and Drop a file from Finder to Terminal to 'paste' the full path without typing and risking type errors.
Download the desired file
Open the Terminal (in /Applications/Utilities/ or query Terminal in Spotlight)
Convert the .iso file to .img using the convert option of hdiutil (e.g., hdiutil convert -format UDRW -o ~/path/to/target.img ~/path/to/ubuntu.iso)
Note: OS X tends to put the .dmg ending on the output file automatically.
Run diskutil list to get the current list of devices
Insert your flash media
Run diskutil list again and determine the device node assigned to your flash media (e.g. /dev/disk2)
Run diskutil unmountDisk /dev/diskN (replace N with the disk number from the last command; in the previous example, N would be 2)
Execute sudo dd if=/path/to/downloaded.img of=/dev/rdiskN bs=1m (replace /path/to/downloaded.img with the path where the image file is located; for example, ./ubuntu.img or ./ubuntu.dmg).
Using /dev/rdisk instead of /dev/disk may be faster.
If you see the error dd: Invalid number '1m', you are using GNU dd. Use the same command but replace bs=1m with bs=1M.
If you see the error dd: /dev/diskN: Resource busy, make sure the disk is not in use. Start the 'Disk Utility.app' and unmount (don't eject) the drive.
Run diskutil eject/dev/diskN and remove your flash media when the command completes
Restart your Mac and press alt while the Mac is restarting to choose the USB-Stick
Everything goes through fine, except, when I restart my mac to see the boot options. All I see is Macintosh HD
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Feb 7, 2012
i have a 2011 macbook pro (md313) and i want to reinstall lion and due to low speed internet connection i cant use recovery partition can i use lion tumb drive wich is available on apple store?
Info:
MacBook Pro (13-inch Late 2011), Mac OS X (10.7.3)
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Mar 30, 2012
I'd like to protect my thumb (flash) drives and want to know the easiest effective way to do so. All the freeware and shareware programs out there only add to my confusion.Â
Info:
Mac Pro, Mac OS X (10.7.3)
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Apr 4, 2012
Since OS X 10.7 comes as a download from the app store, does anyone know if it is possible to install the OS on a thumb drive, in my case so that I could run diagnostic software on the system drive by booting from the thumb drive?
Info:iMac 2.4GHz Intel Core 2 Duo, Mac OS X (10.6.7)
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Apr 24, 2012
how do i format a usb thumb drive for pc or mac
Info:
iMac
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May 1, 2012
cant find my thumb drive on my new mac mini?
Info:
Mac mini, Mac OS X (10.7.3)
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May 26, 2012
The thumb drive you sent containing the upgrade is not recognized by either my Mac Mini or MacBook Pro.
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Nov 30, 2010
If I'm trying to import pictures from a cd rom or thumb drive, can I not import them directly into iPhoto? Is this correct? I have to import them into finder somewhere and then into iPhoto?I swear if i'm importing them from my iPhone I can put them directly into iphoto.
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Jan 9, 2009
I have 2 thumb drives. I believe one if formatted Fat32 and the other specifically for the mac. When I delete files from them the available space does not increase, the only way to get the memory back is to format them. If I check the info it still shows space used after I delete every file, and not a little used space it shows the amount of space before I delete anything. How to fix this without reformatting whenever I need more space?
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May 22, 2009
I'm looking for a fast USB thumb drive to use for data backups. Does anyone know of any SLC USB thumb drives that are 32 GB or larger in capacity?
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Feb 2, 2012
Has anyone discovered the perfect way to protect their Lion thumb drive when carrying it in a bag? The contacts look so exposed and easy to damage.
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Feb 10, 2012
Having trouble transferring files from my pc to the macbook with thumb drive. Is this possible or do I need to start over and create new documents?
Info:
MacBookPro, iOS 5
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Feb 19, 2012
I just erased everything off my Mac Pro and reconfigured everything (as new). I installed all my programs, primarily Aperture3 and Photoshop CS5 (using Leopard). I had no problem uploaded some photos into Aperture3 from a thumb drive using the USB port, but when I tried to upload photos from my card reader the MacPro does not recognize the card reader using the same USB port. I figured the problem was a bad card reader.
I tested it on my PC and it recognized the card reader and uploaded all the photos. Also, the card reader's green light turns on when attached to the MacPro, as if it is working and connected but it does not register in Finder or desktop to indicate that the card reader is installed. I even tried to upload directly from my Canon 7D and it also did NOT recognize the camera. Why would the MacPro recognize the thumb drive on the same USB port and not the card reader or the camera?
Info:
MacBookPro, MacPro DualQuad, Mac OS X (10.5.2)
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Mar 23, 2012
I have a number of thumb drives that are formatted for windows (dos I suppose), is it possible to reformat them to work with my intel imac?
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Mar 24, 2012
I have a PNY 8gb Attache thumb drive that is not recognized by my 2010 27" I7 iMac. It does not show on the desktop, disk utility, finder or system profile. However, this thumb drive works on my MacBook, 2006 24" iMac and a Dell laptop running XP.  I have 4 other drives (1-4gb) that work on all of our computers. Currently running Lion @ 10.7.3 but this problem existed on SL @ 10.6.8 also.  I have tried this drive as a FAT-32 and Mac OS journaled and the 27" still will not recognize the drive.Â
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Apr 16, 2012
I want to copy photos from iphoto to a thumb drive?
Info:macbook, Mac OS X (10.6.1)
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May 2, 2012
my usb thumb drive erased next to the charger. can this be fixed?
Info:
MacBook
Pro
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Jun 6, 2012
Downloaded Lion install on my iMac. Tried to make copy on thumb drive, but each time I get message "Restore Failure" Could not restore-cannot allocate memory. Using 8GB thumb drive. I have tried 2 times to move the file from my desktop to the thumb-drive and have gotten the same message both times.
Info:
iMac, Also have MacBook Pro
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Jun 15, 2012
I am trying to restore my Macbook Air using the Apple Lion Thumb Drive. I inserted the thumb drive, restarted, and held down Command-R. I got the recovery mode, and it is asking me to choose a Wi-Fi Network to continue... I don't have wi-fi here. Is there a way to do this using the thumb drive and no internet?
Info:
MacBook Air, Mac OS X (10.7.2)
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Jun 15, 2012
How can I move photos from my computer to a Thumb drive?
Info:
iMac, Mac OS X (10.4.11)
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Jun 20, 2012
Can I use a usb thumb drive for Time Machine backups?
Info:
iMac, Mac OS X (10.7.3)
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Dec 10, 2014
steps necessary to transfer i-tunes music to a thumb drive????
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Sep 5, 2010
did this cause any damage? my mac seems to work ok still, & I plugged in my thumb drive again & I can access everything.
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Apr 3, 2009
Are there any apps out there that will automatically update the contents of my flash drive when I plug it in? I use my thumb drive to keep documents for my classes, like java files for my programming class or papers etc. It would be fantastic to be able to just plug my flash drive in and if I have added a document into certain folders it will copy those files onto my flash drive.
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May 18, 2009
I have an Aluminum MacBook, is it possible to install Windows with boot camp from a thumb drive? I have access to the ISOs I need (from MSDNAA), but I ran out of CDR/DVDRs. Ideally I would extract the ISO onto the thumb drive and have it behave the same as if it was a CD, is it that simple or is there something else I will need to do?
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Sep 12, 2009
I am still "new" to the Mac world and I have a question about memory sticks/thumb drives and deleting info. I deleted some stuff from a thumb drive and it shows up in the trash can, but when I eject the thumb drive the trash can is empty of the stuff I deleted from the thumb drive. So I figured nothing to delete from the trash can.
So today when I plugged in the thumb drive the stuff that I deleted shows back up in the trash can. So for fun I ejected the thumb drive and the trash was empty. Is this normal? I am now deleting the stuff in the trash can with the thumb drive attached and I can see it "in use" light flashing on the thumb drive.
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Jan 29, 2010
I got this weird issue with my 4 GB flash/thumb drive. Basically, in OS X it seems to work perfectly fine. I formatted it to HFS+ and transferred files to it, ejected it, then put it back in, the file is still there, I transferred it back to the computer, and it opens fine. However, when I put it in any machine running Windows, it'll only recognize 48 MB or something. It refuses to format the whole 4 GB.
When I plug it into an Ubuntu machine, it would recognize a "4 GB filesystem", but would throw up errors anytime I try to interact with it. And when I tried to format it with Ubuntu, it would invariably fail. From Windows and Ubuntu's views, the flash drive is no good. But then why does it *seem* to work fine in OS X? Yes, I have formatted the drive with MS-DOS (FAT) in OS X, same results in Windows and Ubuntu.
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Apr 20, 2012
I plugged my empty(4 GB) thumb drive into my mac and it wont let me drag files into it because there is not enough space, even though the thumdrive is empty!
Info:
iMac, Mac OS X (10.6.8)
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