My external hard disk is no longer recognized?

I backed up my files on an external disk, Fantom Drive. Now the computer does not recognize it even though it spins up when plugged in. Any suggestions?
Marek

Thought you could use this info about getting FireWire to work! I have had no trouble with any update Apple puts out (the Combo update is what I normally choose). Are you running 9.2 like your specs. say? You are in the Tiger forum, so I'll assume you haven't updated your Macs specs.
First, you should always Repair Permissions in Disk Utility before and after any update; I would do that now. If you installed your update with FireWire plugged in, your Mac may not recognize it anymore.
Try resetting your FireWire ports by disconnecting all FW devices, shut down your Mac and unplug it from AC power (wall socket) for 30 minutes. plug it back in and try FW.
If that did'nt work, download the combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try. Yours may be the 10.4.5 Combo update. Others reading, download the Combo that applies to your system.
If that still did'nt get it Zap the PRAM. While restarting Mac hold down the following key combo Command-Option-P-R. Keep holding those keys down till you hear the second start-up chime, then release.
For those of you with Macs that are not PowerBooks or iBooks, a bad internal battery can cause FireWire to not be recognized, so make sure it's good!
Good Luck!
Cheers!
DALE

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My external hard drive is no longer recognized by my Mac

I have used Time Machine and a WD external hard drive to back up my computer for several years. Now, when I connect the hard drive, the drive lights up as though it's working, but the connection does not appear on my Mac -- the external hard drive is not listed in Device (in Finder). Any suggestions?

power feed issues and data appearance/disappearance are both symptoms of the SATA bridge card,..arguably the most failing modern computer component made.
throwing more power to the drive wont fix that.
SATA bridge card as found inside all USB HD devices which has an extremely high failure rate.
Inside a USB hard drive, containing the HD and SATA card
Countless 1000s of good external hard drives are thrown away each year because the owner thought the HD was bad when it fact it was the SATA bridge card which had failed. This card is removed in a matter of mere second once an external USB HD is cracked open from its plastic casing to reveal the bare HD and the attached SATA card which attaches between the HD and the USB cable.
quick and easy option is to crack open the WD USB drive, and remove the SATA card, and put the WD drive into a new enclosure ($20)
HOWEVER, if its an OLD WD drive, the SATA interface is permanently attached to the HD and the OP is "out of luck".

Firewire external mobil disk hard drive is no longer recognized

After last system update, my firewire external mobil disk hard drive is no longer recognized. Any solutions?
Why does MacOS go backwards... gets worse over time?

Thought you could use this info about getting FireWire to work! I have had no trouble with any update Apple puts out (the Combo update is what I normally choose). Are you running 9.2 like your specs. say? You are in the Tiger forum, so I'll assume you haven't updated your Macs specs.
First, you should always Repair Permissions in Disk Utility before and after any update; I would do that now. If you installed your update with FireWire plugged in, your Mac may not recognize it anymore.
Try resetting your FireWire ports by disconnecting all FW devices, shut down your Mac and unplug it from AC power (wall socket) for 30 minutes. plug it back in and try FW.
If that did'nt work, download the combo update from this site (yours may be corrupt), not Software Update, disconnect all firewire + USB devices except keyboard + mouse, Repair Permissions, re-install update, Repair Permissions again + try. Yours may be the 10.4.5 Combo update. Others reading, download the Combo that applies to your system.
If that still did'nt get it Zap the PRAM. While restarting Mac hold down the following key combo Command-Option-P-R. Keep holding those keys down till you hear the second start-up chime, then release.
For those of you with Macs that are not PowerBooks or iBooks, a bad internal battery can cause FireWire to not be recognized, so make sure it's good!
Good Luck!
Cheers!
DALE

External hard disk not recognized by time machine

I have an external backup disk, Passport, that is no longer recognized by time machine or my computer. I used it a couple of weeks ago to restore my wife's MacBook. Hers is an older model and uses Lion. Since then my MacBook Pro--mavericks will not mount the external hard disk.
OKAY==after leaving the Passport on for a couple of hours it now is mounted. Don't know what happened, but it is now working.
CANCEL problems

I see it's now working but make sure you are running the latest version of WD software.
http://community.wd.com/t5/News-Announcements/New-Release-WD-SmartWare-Version-1 -3-6-for-Mac-10-5-10-9-11-25/td-p/628441

How do i retrieve file vault protected files from an external hard disk that used to be my mbp's hard drive? the hard disk got corrupted and will no longer boot. I put it in an enclosure and attempted to copy my files but failed because of FV encryption.

This external hard disk used to serve as the main drive of my mbp. It got corrupted and the OSX would no longer load. I upgraded to a 500gb hd and used the old hd as an external drive. I tried to copy my files but i could not access them because of the filevault encryption. 110gb of hd space appears as used which means that my files are still in the drive. Is there a way to retrieve these files? thanks

According to your post, you're using Leopard, so FileVault only encrypts your user folder (unlike Lion). On the mounted external drive, in your user folder, you should see a file called username.sparsebundle, with username being your user name. Double-click that file to open it and it should prompt you for a password. Type in your password and the file will mount as a volume in Finder. You should be able to copy all of your files over.

I am a OS10.7.4 user. yesterday i bought a Lacie external hard disk but error message appear said " You cant open the applicant LaCie setup assistant because PowerPC applicants are no longer support". please help me how to connect my mac with Lacie??

i am a OS10.7.4 user. yesterday i bought a Lacie external hard disk but error message appear said " You cant open the applicant LaCie setup assistant because PowerPC applicants are no longer support". please help me how to connect my mac with Lacie??

You do not need the Setup Assistant; in fact, you do not need any software on an external hard drive. I have two LaCie's; I erased the drive as soon as I plugged it in. You will need to format it anyway because most hard drives come Windows formatted. So, if you only want to use it with the Mac, highlight it in Disk Utility and choose Mac OS Extended (Journaled) as the format and the GUID Partition scheme under Options. While doing that, it will erase the drive (and get rid of the LaCie software) - once finished, your drive is ready to use for Time Machine or any other backup plans you have for it.

Finder/Desktop not recognizing/seeing external Hard Disks

For 2 weeks, I've used two external hard disks for Time Machine. Both have Mac partitions, with GUID Partition table, and Mac OS Extended (journaled) format. Things worked for 2 weeks.
Then today, the Mac wouldn't recognize one of the Hard Disks, i.e. the disk icon does not appear on the desktop, and the Disk Utility does not see them either.
I thought the problem was one of the disks, so I attached the other disk, and that one doesn't appear on the Desktop or Disk Utility either.
Concurrently -- and I don't know if these issue are related -- I see that the iMac doesn't seem to turn on automatically when I press the on-button. Instead, I have to keep it depressed for a long time before it comes on.

A few hours later, it started working again. No idea why it happened, and no idea why it resolved.

I currently have a MAC Mini, which has 1 Firewire 800 port. I have a 1TB external hard disk that runs at Firewire 400. Can I insert another external hard drive that runs at Firewire 800?

Here's the deal. Currently running SL 10.6.8 on a MAC Mini. Planning for eventual upgrade to ML. Have a 1TB external hard drive partitioned into two volumes, one volume for Time Machine and one volume for SL which I periodically update using Superduper. Thus I always have a point-in-time bootable backup on the external hard drive.
The MAC Mini supports Firewire 800. However, booting from my current external hard disk is pretty slow, since it only supports Firewire 400. I am considering buying an Iomega MiniMax which supports Firewire 800. Then, I would use the MiniMax as my bootable backup volume, and relegate the older hard drive to Time Machine.
So, question #1 is, can I daisychain the new MiniMax between the MAC Mini and my existing external hard drive? My expectation is that the new Mini Max would run using Firewire 800 and that the existing hard drive would run at Firewire 400 speed as it does today. If it doesn't (e.g., daisychaining in the Firewire 400 external disk with the MiniMax Firewire 800 external disk ends up running the whole leg at 400), my resolution will be to run the existing hard disk off an available USB port and have just the MiniMax running at Firewire 800.
Why am I going to all this trouble? That's question #2. I don't trust upgrades; they always break something. When I upgraded from 10.5.x to 10.6.x, the web directories got renamed, and all of my web apps 403'd until I figured out what happened. Plus, I have accounts for other family members, and in order to ensure their ability to use the computer during my upgrade process, I need to have the ability to fall-back quickly to a known-stable version of OSX. So what I'm trying to do is insulate myself from problems by partitioning the MiniMax into two volumes, taking a Superduper image of my current installation on the Mac Mini to MiniMax external drive volume 1, then upgrading to ML on the MAC Mini, and take a SuperDuper image of that to MiniMax external drive volume 2. Then, if the upgrade results in problems I can't resolve immediately, I can simply reimage the MAC Mini from MiniMax volume 1. BUT ...
... I've read that the ML installation creates a "service and support" partition that is different than the startup disk. I'm concerned that I won't be able to reimage the hard disk in the MAC Mini once I upgrade it to ML because of the partitioning changes it introduces on the startup disk. Theoretically, I +should+ be able to use the disk utility on my SL system to repartition the disk in the MAC Mini prior to reimaging it from my backup, but I'm considering the possibility that the new partition may be of a type that the SL disk utility cannot identify, and might therefore be unable to delete or even detect. So I'm hoping someone else has been down this road and can advise me. Even at Firewire 800 speeds, booting from an external disk is still going to be slow, so I want to be able to restore my SL image to the MAC Mini hard disk.
A little background on me. I work for a major disaster recovery provider. I used to have a Mac PRO G5, which I got used, and the first thing I did with it was install a second hard disk, SuperDupe an image from the first disk to the second, and made sure I could boot from the second. THEN I started using and customizing the MAC. I really feel vulnerable with the MAC Mini, since it only has the single internal hard drive - sort of like going out in public dressed only in a long T-shirt. So my whole thing is, I ABSOLUTELY MUST BE ABLE TO PUT THINGS BACK THE WAY THEY WERE before I do the migration to ML.
Obsessive-cumpulsive? Yep. Anal? You got it. That's why I'm in the DR business.

You may have overloaded the port, following the instructions below it should reset:
+1. Shut down the computer.+
+2. Disconnect all devices and all other cables, except the keyboard and mouse cable(s).+
+3. Disconnect the computer from the power outlet and wait for 3 to 5 minutes.+
+4. Plug the computer back in and turn it on.+
+5. Reconnect the device(s) (one at a time if there is more than one) and test. Test with each port if you have more than one.+
http://support.apple.com/kb/HT1317?viewlocale=en_US

How do i burn idvd projects in a dvd format to an external hard disk

I have an iDVD project but it is too big to burn to a dvd (11GB!) so I was wondering if I can save the proejct like a dvd onto my External Hard Disk. This is really urgent and important for a school project.
Thanks in advance.

iDVD does not care about file size (it compresses a movie file by about 4:1 o the standard mpeg2 format), only about length.
A standard DVD will hold up to 120 minutes of video, but this includes titles, transitions etc.
iDVD encoding settings:
http://docs.info.apple.com/article.html?path=iDVD/7.0/en/11417.html
Short version:
Best Performance is for videos of up to 60 minutes
Best Quality is for videos of up to 120 minutes
Professional Quality is also for up to 120 minutes but even higher quality (and takes much longer)
That was for single-layer DVDs. Double these numbers for dual-layer DVDs.
Professional Quality: The Professional Quality option uses advanced two-pass technology to encode your video (The first pass determines which parts of the movie can be given greater compresson without quality loss and which parts can’t. The second pass then encodes those different parts accordingly) , resulting in the best quality of video possible on your burned DVD. You can select this option regardless of your project’s duration (up to 2 hours of video for a single-layer disc and 4 hours for a double-layer disc). Because Professional Quality encoding is time-consuming (requiring about twice as much time to encode a project as the High Quality option, for example) choose it only if you are not concerned about the time taken.
In both cases the maximum length includes titles, transitions and effects etc. Allow about 15 minutes for these.
You can use the amount of video in your project as a rough determination of which method to choose. If your project has an hour or less of video (for a single-layer disc), choose Best Performance. If it has between 1 and 2 hours of video (for a single-layer disc), choose High Quality. If you want the best possible encoding quality for projects that are up to 2 hours (for a single-layer disc), choose Professional Quality. This option takes about twice as long as the High Quality option, so select it only if time is not an issue for you.
Use the Capacity meter in the Project Info window (choose Project > Project Info) to determine how many minutes of video your project contains.
NOTE: With the Best Performance setting, you can turn background encoding off by choosing Advanced > “Encode in Background.” The checkmark is removed to show it’s no longer selected. Turning off background encoding can help performance if your system seems sluggish.
And whilst checking these settings in iDVD Preferences, make sure that the settings for NTSC/PAL and DV/DV Widescreen are also what you want.
http://support.apple.com/kb/HT1502?viewlocale=en_US

My WD external hard drive will no longer show up on my Macbook pro.

My WD external hard drive will not longer show up on my macbook pro. The light turns on and you can hear it running but it won't show up either in finder or in the disk utility. This happened a while ago but I really want to get all my photos off the hard drive. Is there anything I can do to get my computer to read it again or get my data off of it?
I don't have access to another Mac to test it.
Thank you

dead sata bridge card. very common problem.
see all about it here:
Your dead external hard drive is likely fine! Great hope for your 'faulty' external HD
verify HD on another Mac however, if same, dead SATA card most likely

Finder freeze when opening folders of my Western Digital external hard disks

I'm facing a big issue. I'm runnin' Mac Os Lion, I realized a clean install a few days ago. Everything is going fine, but every time I plug an external hard disk on my MBP, I can see the disk appearing on my desktop or in the finder, and when I open it, the finder freezes, I have to reboot manually, or wait to relaunch the finder. My disks are in HFS format, used to work great on Snow Leopard no longer than a week ago... What is weird is that my time machine (external hard disk usb) works fine... Moreover, I can see the disks in the Disk Utility, I can't click on "verify permissions" but on "verify disk" and it says that the disks are fine... Any idea ?
PS : I could have erase everything on them and reformat, but I need the files inside...
Thanks

Hi!
Here's a suggestion from BDAqua:
In finder, select Go menu>Go to Folder, and go to "/volumes".
Volumes is where an alias to your hard drive ("/" at boot) is placed at startup, and where all the "mount points" for auxiliary drives are created for you to access them. This folder is normally hidden from view.
Drives with an extra number on the end have a side-effect of mounting a drive with the same name as the system already think exists. Try trashing the duplicates with a number, and reboot.
cornelius

My Toshiba external hard drive is no longer being recognised by my Macbook Air - solution?

My Toshiba external hard drive is no longer being recognised by my Macbook Air. The light on the hard drive is on, but it won't appear on my computer's desktop or anywhere else. How can I fix this?

Hi rivraff,
If you are having issues mounting an external hard drive volume, you may want to see if it shows up and/or can be repaired in Disk Utility; you may find the following article helpful:
Apple Support: Using Disk Utility to verify or repair disks
http://support.apple.com/kb/ht1782
Regards,
- Brenden

My external hard drive is no longer showing up on the desk top, it wont even work when I plug it into my media player anymore, help?

My external hard drive is no longer showing up on the desk top, it wont even work when I plug it into my media player anymore, help?

Go to Finder > Preferences > General > and in the top section where it says external disks check that the box is ticked. If it is check the connections.

Owc mercury elite external hard drive will no longer come up on my desktop

owc mercury elite external hard drive will no longer come up on my desktop?

Can Disk Utility see it?

Recently upgraded Mac 24" to Lion (clean install) and now no external hard disks work with Time Machine

Recently upgraded Mac 24" to Lion (clean install) and now no external hard disks work with Time Machine.
installed new internal disk first with fresh 10.7.3 Lion software. Also upgrade ram to 4GB. Work great, super fast.
BUT.... my WD 1TB firewire400 external disks no longer work with the Lion enabled machine now.
FURTHER... I read somewhere that WD is problematic with Lion but Seagate was not... so I went and bought a new 3TB Seagate GoFlex.
When it didnt work properly either, I patiently searched and found a software/firward upgrade and applied.
I re-partitioned disk to extened/journaled standard, etc.
Then assigned the particition to Time Machine. Drive turned the blue/grey color, so I thought it would work.
But, it has now been in "preparing" mode in Time Machine for HOURS....
What is up Apple? So dissappointed. Ive read these type of problems are notorious with Lion and I wish I never upgraded.
Are you trying to make issues with External disks, to drive people to iCloud? That trick ont work in me. I will not reward bad behaviour Apple.
Please provide a fix... I wasted hours/days screwing around with this, instead of using the Mac for what its intended!

Solved by Pondini, on another thread I opened...
Answer:
Sounds like either:
A directory problem on your internal HD. Verify your internal HD, and Repair any other volumes being backed-up per #A5 in Time Machine - Troubleshooting.
Something in OSX may be damaged. You've tried the "combo," so a fresh copy of OSX (that won't disturb anything else) would be worth a try (and you don't need a tech for that). See Installing the ''combo'' update and/or Reinstalling OSX.

My external hard disk is no longer recognized?

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