Intel Mac :: 27" I7 Will Not Recognize Thumb Drive
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
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!
I just purchased a Seagate "GoFlex Desk" 2 TB External Drive. It is recognized just fine in my MacBook Pro (Early 2011). When I plug it into my Intel iMac (2009?), it is not recognized. Both machines are running Lion. The box says the disk is "USB 3.0 + USB 2.0". I tried an iMac USB port that is functioning fine with another USB 2 drive. Â
Startup screen is white with spinning circle. I've done all the work-around's. Won't download a new version of Lion. Disk utility says everything is fine. EVERYTHING IS NOT FINE. Can't start up from a disk. This is my 14th Mac. Kind of disapointed.
My external hard drive (Iomega powered 1TB hard drive) that I had as the Time Machine target recently filled up - I have 500GB on 1TB iMac - yet TM showed 999GB. I removed this hard drive and installed a WD USB powered 1TB and this keeps disconnecting - suspect by iMac. TM on System Preferences will not allow me to select the hard drive - I have to remove and reconnect the USB lead to allow the iMac to see it
2012 iMac running 10.7.4 (lion). I have an external hard drive that I use for Time Machine. It has been working fine. Today, I turned it on to run Time Machine and the computer does not see the hard drive. I used a different cord to connect it. Still did not work. I tested both cords with a different external drive and they worked. So it is not the cords. The hard drive is getting power from its separate power cord. The hard drive knows when it is hooked up because the motor in the hard drive revs up when I plug it into the computer. However, the computer does not see it on the desktop or in finder.
I have a mid-2010 iMac. Recently, it has failed to mount DVDs, either video or data, on a reliable basis. I have been able to work around it by restarting my iMac, but that doesn't always work.
Info: iMac, OS X Mavericks (10.9.4), mid-2010 model
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
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)
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
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)
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?
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.
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?
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)
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.
