Swapped hard drive boot problem

Swapped hard drives between 6530b and 6535b, neither boots. What did I miss? (Toshiba MK3255GSX and Hitachi HTS543223L9A300)

Disk Utility - Erase (drive, not volume) and make sure it is now GPT/GUID and not old Apple Partition Table format.
Even though it is data only, there can and are some problems (the older it was last formatted the more so perhaps).
Just pull the data off if needed. Handy to have a FW drive case for SATA laying around.
Migrating OS and apps from G5 to Intel is full of potential pitfalls.
Depending on the drive age, size, performance, I'd probably go for a WD Caviar 640GB $75 to transfer files onto, and then wipe the Maxtor and use it for an emergency backup drive off which you can run Disk Warrior and such.

Similar Messages

  • Installing second hard drive - boot problem

    I have a Maxtor SATA hard drive that I had installed in my G5. It is use only for client project files - no operating system or programs have ever been installed on this drive. It worked great in my G5. I recently upgraded to an Intel Mac Pro and so I pulled the drive and installed it. With the drive installed it won't even boot. All it does is keep repeating the start-up chime. I tried it in several of the open bays and it did the same thing every time. When I pull it back out, it boots without a problem and when I put it back in the G5 it is recognized without a problem. Any thoughts of what could be the problem and solution? I really need to get this back, as I mentioned it contains all my client projects.
    Thanks.

    Disk Utility - Erase (drive, not volume) and make sure it is now GPT/GUID and not old Apple Partition Table format.
    Even though it is data only, there can and are some problems (the older it was last formatted the more so perhaps).
    Just pull the data off if needed. Handy to have a FW drive case for SATA laying around.
    Migrating OS and apps from G5 to Intel is full of potential pitfalls.
    Depending on the drive age, size, performance, I'd probably go for a WD Caviar 640GB $75 to transfer files onto, and then wipe the Maxtor and use it for an emergency backup drive off which you can run Disk Warrior and such.

  • MacBook Pro will not boot - have replaced hard drive and problem persists

    Macbook Pro Mid 2010
    4gb ram, 2.4 GHz Intel core 2 duo
    Originally when I received a folder with a flashing question mark upon startup, I assumed I had a failed hard drive. I went ahead and installed a new 500GB hard drive in my machine and installed OS X Snow Leopard. I upgraded to OS X Mavericks, and I had everything running properly. The next day, I went to startup and my Mac would not boot again. The dreaded folder and question mark were back.
    I'm wondering what else could be causing this problem? Is it something I can diagnose and repair myself or will I be better off taking it into someone at this point?
    Thank you!

    You can try replacing the hard drive cable...
    Have you tried resetting the PRAM and SMC?
    Does the hard drive boot when connected externally?

  • Swapping hard drives between PXI-8115 and PXI-8105 won't boot up

    I have a test system running Windows XP on PXI-8105.  I've upgraded the entire test system for another project and need to upgrade my existing systems; the upgrade runs on Windows 7 and PXI-8115.  I have new hard drives with Windows 7 and the new test software which were loaded/configured/tested on a PXI-8115, but I need to retrofit the PXI-8105 with them.  This doesn't work.  Windows begins to boot but fails and tries over and over again.  In an effort to take the PXI-8105 off-line to troubleshoot, I replaced it with one of the PXI-8115 and the old (WinXP) drive.  This didn't boot up, either.
    Here's a summary of my situation:
    An old system has PXI-8105 running WinXP
    A new system has PXI -8115 running Win7
    A hard drive (with Win7) from the PXI-8115 won't boot on the PXI-8105
    A hard drive (with WinXP) from the PXI-8105 won't boot on the PXI-8115
    What is different between the two PXI controllers that keeps me from swapping hard drives?
    Jim
    You're entirely bonkers. But I'll tell you a secret. All the best people are. ~ Alice
    Solved!
    Go to Solution.

    A couple thoughts:
    1. Windows 7 probably works fine on a PXI-8105. Although NI never officially supported or shipped that configuration, I suspect that the default Windows 7 installation contains enough of the driver support needed to boot up.
    2. In general, Windows is not very tolerant of swapping hard drives between completely different systems, especially with Windows XP and prior. Consider whether just installing fresh and copying over what you need is faster than trying to do this, but if you must, I would suspect that Windows 7 would be more tolerant of the swap.
    3. As a debugging step, try pressing 'F8' during the boot process to launch the Windows boot menu and try safe mode or some of the other options.  More information here.
    4. If all else fails, Google is your friend here as there's nothing particularly specific about this being an NI product that you need to know when attempting this operation. Any information you find online about swapping hard drives between PCs should be relevant to your situation. Searching for 'swap hard drive to new computer windows 7' gave some useful hits on the first page. Beyond that, you can also look into using the 'sysprep' utility to try and clean the system and prepare for swapping to a new PC.

  • Swapping Hard Drive problem

    Hello, I have a 2008 model Macbook pro.  I recently pulled the hard drive from a windows pc and replaced that drive with a SSD.  The windows drive was not reformatted, I figured I could do it through Disk Utility.  However, the drive does not show up.  I'm assuming it's currently formatted as ntfs or fat32. 
    The existing drive is bootable, but the machine is put back together and it's a pain to take apart.  Wondering if I can boot into something like terminal and choose to reformat the drive. 
    The only drive that shows up is my bootable flash drive.  I do have the ability to hook up the old drive through a USB to SATA adapter, and possibly boot that way.  If I can get it to boot from that external drive, is there a way to format the newly installed drive without having to rip the whole thing a part?
    I had a hard time with the * shaped screws getting them in and out, so I'm trying to avoid having to remove the drive again....
    Any tips would be appreciated!

    More info:  I think there is something wrong on the motherboard side all of a sudden.  Now when I put the original drive in it doesn't boot up anymore.  I wonder if while removing the old drive, I damaged the Hard Drive Connector?  I just ordered a replacement on ebay (only 9 bucks).  What is odd is I'm pretty careful about removing things, since I have replaced many laptop components over the years, so I don't think I did anything damaging when swapping hard drives.
    The laptop did work fine, but since it is a 5400 RPM drive, I wanted speed, so I wanted to just put a 7200 RPM or SSD.  What I ended up doing this morning was to hook up the SSD externally and choose to install Mavericks to that drive through my bootable USB.  Than, once I booted successfully, I re-took the laptop apart, and put the SSD drive into the laptop.  I didn't put the rail screws on this, I was just testing if it booted, so I just set it in the area it will reside.  I booted and it wouldn't boot up at all, never saw Apple logo, just showed a blinking folder with quesiton mark on the screen. 
    If anyone has any other suggestions, I'd appreciate it, but now the internal drive connections don't seem to work, but I can boot externally for now.  I figured I'd order the Hard Drive connector kit from ebay and see if that fixed it, since that is a 9 dollar part....
    Thanks.

  • If you format in Guid for Intel Macs, Apple partition for PPC Macs for Boot drives, then why do my PPC Hard drives Boot in my 2007 Mac Pro, what gives?

      I recently purchased a 2007 Mac Pro for a song, swapped the CPU's for octo chipsets and proceeded to wait for new Hdd's in the mail. I was told the Hard drives in my old G5 would not be bootable unless they're in Guid format. Disc Utility confirmed to use the specific maps as well and yet all of my 2006 PPC Power Mac G5 Hard drives boot in my MP without a hitch, although a few none universal apps do not work. So what am I missing, does it really matter which Apple partion map to choose from or is this a fluke?...

    all of my 2006 PPC Power Mac G5 Hard drives boot in my MP without a hitch
    Yes, and what version of Mac OS  are they booting?
    >> They will boot the OS that is on them, but not a later one.

  • G3 B&W New Hard Drive Installation Problems

    I got a G3 for free just recently and when I booted it up the question mark folder icon came up. So I figured the hard drive had entirely quit. I had a second drive that I had come across, loaded that into my G4 and cloned the G4's Hard Drive. I was also in need of the OS. Swapped out the hard drives, booted the G3 up and the same question mark folder icon came up. I am just curious if anyone has any good advice on how to upgrade this G3 to a new hard drive so I can try to get Tiger on it. My mother only uses a computer for iTunes and browsing the web so I should only need bare minimum requirements.
    Also the board is a Rev 2.

    The question mark comes up when your Mac cannot find:
    • the preferred OS version
    • of the preferred OS type
    • on the preferred Startup Disk
    all these items are stored in the parameter RAM and Non-volatile RAM and preserved by an "always-on" 5 Volt power supply that works whenever there is AC power, even if the Mac is nominally off.
    When there is no AC power, a 3.6 Volt 1/2 AA battery supplies backup power. When that also goes too low, parameter corruption can cause the exact symptoms you describe even if the Hard Drive is perfectly fine.
    Reset the PRAM using the tiny button on the motherboard near the battery. Hold the button for a quarter minute, then wait at least five seconds before doing anything else. Avoid momentary presses. You will probably need a new battery. Any drop in AC power after the reset and before you replace the battery will send you right back to were you were (or worse). Also, after replacing the battery, you will need to do the reset again.

  • Swapping hard drives .... how does lightroom handle this ?

    My photography is done on a separate computer to my online machine and the photo system never goes online ( so virus-proof ).
    I use " Laser " brand hard drive racks which allow me to swap hard drives on each machine, and also to swap them between the two computers.
    So I have several HDD's with different photo projects on each drive and some backups on HDD's as well.
    Lightroom is a database system rather than a browser, so how will it be able to handle swapping HDD's in and out like this ? What happens if lightroom points to a file which is on another HDD not currently installed in the machine ? Will it be able to show all the thumbnails and tell me which HDD holds them ( as I believe programs like Imatch can )? Will lightroom be confused by this. Or will it set up its database on each HDD so each disc is a self-contained library with its own lightroom index ?
    I know I can't be the only one with more photos than fit onto just one HDD. Can anyone please tell me how lightroom's library system deals with this situation ?

    Thankyou very much for the responses so far ....
    I see a potential problem because my HDD's are not permanently connected in the computer. Each HDD as it is swapped in and out is assigned the same identifier, say " drive D " or suchlike by windows. So my drive D might be any one of several HDDs .... with very different content to the previous drive D I had in the machine. If Lightroom stores its library for each of my drive D's on drive D itself, then I suspect there will not be problem because each HDD will be its own self-contained libary and Lightroom which resides on drive C will be able to operate on each one in turn. I will then have a series of HDD's dedicated to specific tasks, and can use Lightroom on all of them.
    Windows works this way, where it resides on my drive C and performs operations on each drive D. It has no problem in " picking up " each new drive D at startup. I do not attempt to hot-swap.
    But I do not know if this is how Lightroom operates. If Lightroom stores any of this information on drive C will it be able to differentiate between the different drive D's it is confronted with ?
    Geoff's reply suggests that Lightroom might store some or all of its database/library with itself on drive C. Even this might work if the missing files are shown in red. I would just need to select the right HDD to put into the machine for the project I want to work on. Hopefully this will work like the external drive situation Andrew has described. I am using sticky labels to identify each HDD with the projects it holds at the moment ....
    Sounds encouraging .... Thanks for the help.

  • Can I swap hard drives?

    Hi.
    I have a T400 with T9400 chipset.  All (3) USB's have broken over the years and I recently purchased a used T400 on ebay with T9600 chipset to replace the older computer.  
    My question is can I simply swap hard drive from old computer to the new one and have everything work?  The current computer is 64-bit Windows 7 and newer one is 32-bit...
    Thanks for help!

    >>> The current computer is 64-bit Windows 7 and newer one is 32-bit...
    That statement is irrelevant. Either computer can run either Windows 7 version, no problem -- 4GB RAM addressability being the main limitation of the 32-bit version.
    I would give it a try. Unless there are significant device differences (which I doubt), Windows 7 system loaded from the "old" HDD will work fine on the "new" ThinkPad.
    In any event, I would rather use this opportunity to do a clean installation of Windows 7 64-bit, for which you have a COA key.

  • Hard drive recognition problem in BIOS...HELP

    I have a Satellite A-135 S2256. A month or so ago it was in for the BIOS password error fix. Came back fine and worked well for about a week, then it went black screen on me. I had the video chip set/video chip reflowed and I now have the Toshiba start up screen and I can enter BIOS. BIOS shows Hard Disk: 1-ST9160310AS-(S1), Hard Disk: None. Brand new Hard disk. The old hard disk gets the same response. BIOS sees it but won't boot it. Boot menu shows the disk also. After exiting BIOS I am getting PXE-E61: Media test failure, check cable. This repeats over and over.....any help at all would be greatly appreciated. I was told by one firm that my OEM hard drive was bad, so I bought a new one. Another place told me the hard drive was fine and the motherboard was junk. It's only 2 years old!!! 
    Solved!
    Go to Solution.

    Is the item about the chips being reflowed something the shop did?  If so, yike!  That normally means applying heat so that the solder reflows and is not a procedure I'd want to undertake lightly.  If the shop did all this and the system isn't working, I would insist the fix it at no additional charge.  At least if I'm understanding what took place.  Who transferred the drive data and what software did they use to do it?  You might be best advised to call (800) 457-7777 and order recovery disks.  They'll want the serial number of your machine and a credit card for the $19.95 shipping and handling.  The recovery disks will restore the binary image of the original hard drive.  Once you get the hard drive booting you can see about restoring data form the disks you have.  The PXE-61 message says that there is no bootable device.  The fact that the drive is seen by the BIOS would seem to indicate that the drive is good, it just doesn't have a boot sector.

  • Can I swap hard drives between 2007 and 2011 iMacs?

    I have a 2007 iMac that I want to replace with a refurbished 2011 model. I had upgraded my 2007 iMac with a 1.5T hard drive and the 2011 model only comes with a 1T hard drive. And you can't do any upgrade at the Apple store on refurb units. SoI am just wanting to swap hard drives. The 2007 has 10.7 and it appears that the 2011 model has the same. (says elegible for 10.8 upgrade on Apple Store site.) I have replaced the hard drive myself, so I am familiar with the process.
    Thanks.

    The drives themselves are compatible, yes. However, the OS might not be. In any case, if you have a Time Machine backup (or some other backup) of the older iMac, it's best to wipe the drive and reinstall the OS once installed in the new Mac. Then you can just transfer your data, apps, and settings from the backup.
    One important thing to note, though: the 2011 iMacs have temperature sensors built in on the hard drive, so if you use a drive other than one supplied by Apple specifically for that system, the fans will run at full speed all the time. Probably the easiest workaround: use something like smcFanControl to regulate the speed of the fans. Hope this helps!

  • How to swap hard drives?

    I currently have a mid-2007 white Macbook with Tiger OS. I'm thinking of purchasing a 13" Macbook Pro, but would like to swap hard drives since my current one is 320gb 7200rpm.
    What's the best way to do this? Can I just swap the drives out, and then reformat them with the installation discs? I don't mind reformatting the hard drives because I have all of my data backed up to an external already.

    Yes, you can swap, reinstall the OS from the DVDs that come with the new MBP, then use Migration Assistant to transfer the data form your external backup.

  • G3 Hard Drive boots up only partially

    I've just reinstalled my 6G hard drive in my blueberry after using my 6 month old 60G hard drive from it to back up my new iMac G5. The reinstalled hard drive boot sequence is: blank gray, then white then gray with a small question mark for one second then then the little squared face icon (OS 9 or 10.2 as I recall) for a second, soon replaced by the Apple and a few seconds later joined by the little "circling circle" and finally the Apple is permanently replaced by a circle with diagonal slash with the other little circle still circling. This sequence doesn't change although I've tried the iMac Software Restore, Software Reinstall, and OS 10.2 Install, with and without holding the C down while rebooting, and have zapped the PRAM and done all again. I welcome all suggestions. I'm confident the hard drive is physically installed properly. Thanks!

    Dale, thanks much, but none of the methods worked. The reinstalled hard drive has 10.3 on it, installed by a Mac dealer who didn't give me the discs; I only have 10.2 (and 7.5) discs, which I suspect won't work to reinstall since 10.3 is on the hard drive . Do I have any recourse other than trying to retrieve a 10.3 startup disc?

  • [SOLVED] Arch won't mount my hard drives correctly, problems at boot.

    Sometimes (only sometimes) Arch Linux will have an error during bootup because my Linux drive gets mounted as sdb instead of sda. My NTFS Sata storage drives gets mounted in its place as sda.
    When this happens, Arch Linux will stop booting at the "checking filesystems" step:
    :: Checking Filesystems [BUSY]
    /dev/sda3:
    The superblock could not be read or does not describe a corect ext2
    filesystem. If the device is valid and it really contains an ext2
    filesystem (and not swap or ufs or something else), then the superblock
    is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
    [FAIL]
    **************** FILESYSTEM CHECK FAILED ****************
    * Please repair manually and reboot. Note that the root *
    * file system is currently mounted read-only. To remount *
    * it read-write type: mount -n -o remount,rw / *
    * When you exit the maintenance shell the system will *
    * reboot automatically. *
    Give root password for maintenance
    (or type Control-D to continue):
    And from there i have to remount my drives manually or restart the computer. Everytime I start the computer, I simply have to hope that my Linux drive will mount as sda. It's totally hit and miss.
    Now, I know that my superblock is not corrupt. fsck is failing because it is looking for my linux filesystem on sda. It is encountering my NTFS Sata drive on sda instead of the expected Linux ext filesystem.
    So how do I know that this is happening?
    Well, after giving the root password, it shows the root prompt
    [root@(none) ~]#
    and i proceed to use the lshw command to see what's up with the drives:
    [root@(none) ~]# lshw -short | grep /dev/
    /0/6/0.0.0 /dev/sdb disk 120GB WDC WD1200JB-00E
    /0/6/0.0.0/1 /dev/sdb1 volume 101MiB Linux filesystem partition
    /0/6/0.0.0/2 /dev/sdb2 volume 258MiB Linux swap volume
    /0/6/0.0.0/3 /dev/sdb3 volume 7506MiB EXT4 volume
    /0/6/0.0.0/4 /dev/sdb4 volume 104GiB EXT4 volume
    /0/6/0.1.0 /dev/sdc disk 81GB Maxtor 6Y080P0
    /0/6/0.1.0/1 /dev/sdc1 volume 76GiB Windows NTFS volume
    /0/8/0.0.0 /dev/sda disk 640GB Hitachi HDT72106
    /0/8/0.0.0/1 /dev/sda1 volume 596GiB Windows NTFS volume
    So, clearly, this shows that my Linux drive has gotten mounted as sdb and my NTFS Sata drive has gottem mounted as sda. It's totally random: sometimes they mount vice versa and the system boots just fine.
    When Arch does happen to mount itself properly as sda and the system starts successfully, then the lshw command shows this:
    [root@(none) ~]# lshw -short | grep /dev/
    /0/6/0.0.0 /dev/sda disk 120GB WDC WD1200JB-00E
    /0/6/0.0.0/1 /dev/sda1 volume 101MiB Linux filesystem partition
    /0/6/0.0.0/2 /dev/sda2 volume 258MiB Linux swap volume
    /0/6/0.0.0/3 /dev/sda3 volume 7506MiB EXT4 volume
    /0/6/0.0.0/4 /dev/sda4 volume 104GiB EXT4 volume
    /0/6/0.1.0 /dev/sdb disk 81GB Maxtor 6Y080P0
    /0/6/0.1.0/1 /dev/sdb1 volume 76GiB Windows NTFS volume
    /0/8/0.0.0 /dev/sdc disk 640GB Hitachi HDT72106
    /0/8/0.0.0/1 /dev/sdc1 volume 596GiB Windows NTFS volume
    The above correctly mounted format shows the drives in the same order as my Hard Disk boot priority in BIOS as well as in the same order as during the initial drive detection directly following the memory test (don't know if it has anything to do with it though).
    So my question is this. How do I ensure that Arch Linux mounts itself as sda ALL of the time, and not randomly?
    Or should I remove my sda entries in etc/fstab and let Arch determine where my Linux filesystems are? If so, how?
    It's interesting to note that GRUB is set to boot Arch Linux from hd0, which should be sda.
    It's also intriguing to note that if I take out my Sata drive, I never encounter this problem.
    Last edited by trusktr (2010-06-15 07:49:31)

    Thanks kgas, here's what i found out so far:
    Alright so after rebooting, this is what i determined:
    When Linux mounts the drives incorrectly (take note of the parts in bold, the short numbers are NTFS filesystems, long numbers the Linux filesystems):
    [trusktr@rocketship ~]$ ls -l /dev/disk/by-uuid
    total 0
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 01CA836D8BE82040 -> ../../[b]sdc1[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 0ddf0e41-e7e6-4af5-b0e9-bc79a91b12eb -> ../../[b]sdb1[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 92b88528-dd0f-4c1b-bcce-54084ef2aceb -> ../../[b]sdb4[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 C838CF5838CF4462 -> ../../[b]sda1[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 cdb33de5-0100-4c5f-a9b1-5c1a444e6eac -> ../../[b]sdb3[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 d0a5d49d-169d-43ce-af0f-216dc4a9f604 -> ../../[b]sdb2[/b]
    So an NTFS filesystem is mounted in sda instead of the Linux filesystem
    When Linux mounts everything properly:
    [trusktr@rocketship ~]$ ls -l /dev/disk/by-uuid
    total 0
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 01CA836D8BE82040 -> ../../[b]sdb1[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 0ddf0e41-e7e6-4af5-b0e9-bc79a91b12eb -> ../../[b]sda1[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 92b88528-dd0f-4c1b-bcce-54084ef2aceb -> ../../[b]sda4[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 C838CF5838CF4462 -> ../../[b]sdc1[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 cdb33de5-0100-4c5f-a9b1-5c1a444e6eac -> ../../[b]sda3[/b]
    lrwxrwxrwx 1 root root 10 Jun 14 21:08 d0a5d49d-169d-43ce-af0f-216dc4a9f604 -> ../../[b]sda2[/b]
    This doesn't tell us much except that I indeed do have uuid's for all the drives.
    So, i guess as kgas said, i probably need to use the uuid in fstab so that Linux always knows which hard drive is the linux drive! In that case, only the uuid for the Linux drive will be necessary. For the other drives it wouldn't matter so much i guess since they don't contain the operating system.
    Alright, i'll be back to determine if this fixes it!
    Last edited by trusktr (2010-06-15 06:41:25)

  • FireWire I External Hard Drive Boot Up Problem

    I have a 400 Mhz Blue & White G3 running OS X 10.4.8 or Classic 9.2. I also have an IOMEGA 400 Gig Hard Drive capable of connecting with FireWire I & II and USB and an IOMEGA 120 Gig Hard Drive capable of connecting via FireWire I. Of course, the G3 only has FireWire I capability. I also have a PowerBook G4 running OS X 10.4.8.
    The 400 Gig HD boots under all three methods of connection.
    The IOMEGA 400 Gig hard drive will connect via all three methods on the PowerBook G4, but will only boot on the G3 under USB in OS X, i.e., it won't boot on the G3 using FireWire I in OS X.
    However it will boot on the G3 using FireWire I under System 9.2 (Classic).
    NOTE: The 120 Gig HD will boot to the G3 under OS X using FireWire I. And other of my peripherals also work on the G3 under OS X using FireWire I.
    Bottom Line: What can I do to have the G3 recognize the 400 Gig HD when running under OSX?
    Blue & White 400 Mhz G3   Mac OS X (10.4.8)  

    One other thing you mentioned it is seen in Classic but not on OS X. I am not sure if you are aware of this but your drive comes FAT32 formatted. Below is a link to tell you a little more about as to why mac os x can't support a FAT32 partition over 128GB.
    http://docs.info.apple.com/article.html?artnum=107483
    Here are a few steps to resolving your issue.
    STEP ONE - Confirm that the drive is being seen by the system
    Click the Apple icon and select About This Mac.
    Click More Info.
    Select the Drives and Volumes tab.
    If the Iomega Hard Disk drive is not listed under the USB/FireWire arrow, proceed to STEP THREE.
    If the Iomega Hard Disk drive is listed, continue with the next step.
    STEP TWO - Format the Iomega Hard Disk drive to Mac HFS format
    The Iomega Hard Disk drive is factory formatted to FAT32 for maximum compatibility. If you have not reformatted the disk or the disk is formatted to FAT32:
    The disk may mount very slowly in OS X if the disk is FAT32 formatted.
    Mac OS X will not mount any DOS (FAT32) partition larger than 128GB. For more information, please check the Apple® Web site at http://docs.info.apple.com/article.html?artnum=107483
    Warning: Erasing your Iomega Hard Disk drive will erase all of the information stored on the disk. If possible, back up your data before erasing the hard drive. Mac formatted disks are not cross compatible with other operating systems, such as Windows®, without the purchase of additional third-party software.
    Double-click the Mac hard drive icon.
    Double-click the Applications folder.
    Double-click the Utilities folder.
    Double-click the Disk Utilities icon.
    Highlight the Iomega drive in the left window.
    Click the Erase tab.
    Select Mac OS Extended.
    Click the Erase button and then click Erase from the confirmation window.
    If the Iomega Hard Disk drive now mounts, you are ready to use the drive.
    If the Iomega Hard Disk drive does not mount, continue with the next step.
    STEP THREE - Are the Mac OS X drivers detecting the drive properly?
    The Iomega Hard Drive may not mount if you are using Mac OS X versions under 10.1.3. If you are not using Mac OS X 10.1.3 or higher, please visit the Apple® Web site at http://www.apple.com/macosx/ for information on getting the latest version.

Maybe you are looking for