Disk Utility not functioning properly, unable to format disks

Installed Mountain Lion last week and am now trying to format a flash drive, but Disk Utility no longer has the ability to do anything at all.  I can open it and look at my disks, but that's all I can do.  All functions have essentially been locked out.  Help!

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad and start typing the name.
The title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
Click the Clear Display icon in the toolbar. Then take the action that isn't working. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name or email address, may appear in the log. Anonymize before posting.

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    Launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ Open LaunchPad and start typing the name.
    The title of the Console window should be All Messages. If it isn't, select
              SYSTEM LOG QUERIES ▹ All Messages
    from the log list on the left. If you don't see that list, select
              View ▹ Show Log List
    from the menu bar at the top of the screen.
    Click the Clear Display icon in the toolbar. Then take the action that isn't working. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
    The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
    Please don't indiscriminately dump thousands of lines from the log into this discussion.
    Please don't post screenshots of log messages—post the text.
    Some private information, such as your name or email address, may appear in the log. Anonymize before posting.

  • Disk Utility not copying all files when making disk image

    My OS is 10.6.5 and everything is up to date.
    I have a dvd that was burned for me of a play my child was in. It was probably burned on a PC using out of date software for all I know. But it plays in a DVD player and also in DVD player on my Macbook.
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    Janet.b wrote:
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    The same RAM is on Crucial.com for $90 and all I need is a 00 micro phillips screwdriver.
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  • Disk Utility reading incorrect HD size - cannot format disk

    I have a 250 GB external SATA drive, which I want to format for use with Time Machine. I had a power failure in the middle of the format to HFS+, and now disk utility reads the drive as a 2 Terrabyte drive rather than as a 250 GB drive (and cannot format it or mount it).
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  • Disk utility not working and neither is reinstall disk

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  • The disk was not ejected properly. ... External HD was removedWhat disk?

    I recently experimented with the backup software that came with my Western Digital external hard-drive, as an alternative to Time Machine. Unsatisfied with the WD program, I deleted it once I switched to another, larger hard-drive, from Seagate, and have switched back to Time Machine. Ever since I removed the WD drive and deleted the WD software (by highlighting the file name in Finder and pressing delete), every 15 minutes or so I get the following message: "The disk was not ejected properly. If possible, always eject a disk before unplugging it or turning it off." Did I properly delete the software? Is the error message related to the software and WD hardware, which perhaps the Mac continues to look for though it's been disconnected? The software was programmed to launch a backup a few times every hour, I think.

    If you can see the drive in Disk Utility (Applications -> Utilities), then I'd suggest reformatting/repartitioning it. I just got a new LaCie external HD and it had some sort of software on it - I simply ignored it and set it up by clicking on partition. If you are only going to use it with a Mac, use "Mac OS Extended (Journaled)" as the format and (under options) "GUID Partition Map". You can choose 1 or more partitions. It will then erase the drive properly and you should be good to go. If you need to use the drive with both Mac OS and Windows, I can't help with the format because I don't do Windows, but if you click on the "?" in Disk Utility, there should be plenty of help there.

  • Satellite P300D-110 integrated webcam is not functioning properly.

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    Using Camera Assistance Software provided by Toshiba I can NOT record or preview a video.
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  • I unplugged a USB data device without ejecting it properly via 'Finder'.  Now whenever I plug in the device I received an error message stating that the 'disk was not ejected properly

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    You can repair the SD card using Disk Utility.
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  • The disk was not ejected properly

    I have 3 Seagate 1.5TB external USB drives. Two of which I am using with a MacbookPro 17" first gen. Latest snow leopard. The third one I am tethering to a Dell XPS server. The one attached to the Dell works fine.
    On the MBP17 Every now and again (randomly) the disk disappears from finder and I get this dialog:
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    |
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    | > Eject. The next time you connect the disk, Mac OS
    | X will attempt to repair any damage to the
    | information on the disk.
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    | ( OK )
    I've replaced one of the drives through Seagate RMA and the same thing happens with the returned/refurbished drive. So, I really don't think there's anything wrong with the drives.
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    Message was edited by: phpguru

    @Gizmolab - Thanks for that reply. It seems like a decent theory. I found Seagate Diagnostics for Mac. It says it's only for drives that have a FireWire800 port. The ones I am using have USB only. I installed it anyway. When I run diagnostics it says no drives found so I cannot diagnose them. I'll see how it goes though, maybe it updated the driver.
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    Disk Utility reports that there appears to be no problems with the disk... thankfully. While typing this reply, I heard the disk go to sleep and about 3 minutes later it just ejected itself dang it. So Seagate Diagnostics appears to be only for Firewire800 drives.

  • "disk was not ejected properly" errors

    I have 3 external Lacie drives (all Thunderbolt) connected to my iMac: 2 3TB drives and 1 512 GB SSD.
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    After doing some further testing, it appears it's the SSD.
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  • Disk was not ejected properly comes up when I start my computer. I'm running 10.7.5 and have not ejected any disks or had problems in the past ejecting.

    I can't figure out what disk was not ejected properly. All I have connected is an external HD. How can I find the disk that needs to be ejected?

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    Problem: I ejected an external HD (by control-mouse click), turned it off, and disconnected it from the firewire cable. Some minutes later, I got the dialogue box: "The disk was not ejected properly. If possible, always eject a disk before unplugging it or turning it off." I clicked OK, continued to work and, a few minutes later, I got the dialogue back again. This continued to happen several times, so I did a restart and the same warning reappeared at various intervals. I did another restart and have had the same warning appear several times.
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    +but I'm still concerned about the iMac and why it is repeating the warning.+
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  • Ever since upgrading to Lion I keep getting the error message "disk was not ejected properly."

    Ever since upgrading to Lion on my iMac G5 Intel Core 2 Duo, I keep getting the error message "disk was not ejected properly."  I have repaired permissions and reformatted my external LaCie 2TB USB hard disk, but the error continues.  I use this disk for my Time Machine backups.  This always seems to happen when the computer wakes from sleep, but not consistently.  The computer was asleep overnight and backed up as soon as it awakend this morning.  Two hours later I get the improper ejection message.  I have used the same external disk with Snow Leopard (all versions), but never had this error message or problem.  This disk has been in use without any problems since February, 2011. Upgrading to Lion is when this problem began. This is the below message (but from online image from Snow Leopard, but Lion message is essentially the same).

    I had a similar issue. Mine was with a Seagate GoFlex drive. The solution was to install GoFlex for Mac 1.1.2 which included a 64-bit driver to disable the drives built in sleep timer:
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    i'm just scared i will do something wrong on my own and lose my data.
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