After security update my hard drive will not show

G4 Tower - Mac OS X - 733mhz.. After a security update 2 days ago i can not get my computer to boot. It comes up to the gray apple screen and just sits there. I put the install dvd in and went to disk utilities, but the hard drive does not show up at all. I tried to boot the computer in target mode from my laptop. It goes into target mode, but the drive never shows up on the screen. I put disk warrior in the laptop and launched it, and it seen the drive as a firewire drive, but the only option was to rebuild. I have a lot of info on the drive, and am hoping that I do not have to go to that extreme. Please help...

the only option was to rebuild. I have a lot of info on the drive, and am hoping that I do not have to go to that extreme. Please help...
I think you are misunderstanding what disk Warrior will do, and how it does its magic. Disk Warrior is a wonderful, powerful, tool and works well for many people. When it suggests a ReBuild, it is saying your drive is recognized and intact enough to attempt to construct a new (proposed) Directory.
It will scavenge all the information it can find from every possible source (including the existing Directory) and build a new (proposed) Directory of all your recoverable files. If the damage is not severe, nearly all your files will be included in the new (proposed) Directory.
It then lists the differences between the new (proposed) Directory files compared to the old (existing) Directory files, and invites you to look at them side-by-side, if you like. ONLY if you approve, will it replace your old damaged Directory with the new (proposed) one. If you choose not to replace your old Directory, it just quits and nothing is changed on your Drive.

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I recently updated my Mid 2007 iMac with the latest OS 10.8.5 now my external hard drives will not show up. They show up when I boot them up on a machine running and earlier OS. Is there a fix for this?

I recently updated my 20-inch, Mid 2007 iMac with the latest OS 10.8.5 now my external hard drives will not show up. They show up when I boot them up on a machine running and earlier OS. Is there a fix for this?

Can you see them in Disk Utility?
If so, can you select and Mount them?
If not, disconnect them, reset the iMac's SMC and then reconnect them.
Intel-based Macs: Resetting the System Management Controller (SMC)
1. Shut down the computer.
2. Unplug the computer's power cord.
3. Wait fifteen seconds.
4. Attach the computer's power cord.
5. Wait five seconds, then press the power button to turn on the computer.
If you still can not see them, connect them back up to the iMac running the older OS, open Disk Utility and look to see how they are partitioned and formatted.

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Hello,
When i leave my external hard drive (that I use to back up my system) in, it will not show up on the desktop. Is there any solutions i could try?
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Ok, so you can see it, at least with Disk Utility.
OS X journeled is fine, but If you ever expect to use it to boot off of, you'll need to create a primary partition map set to GUID...do that as a first step, then confirm it is OS X format, name it, etc.
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External hard drive will not show up on my desktop?!?!

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Open Disk Utility and see if it is listed in the DU sidebar. If it is, then you will need to prep the drive:
Drive Partition and Format
1. Open Disk Utility in your Utilities folder.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed.
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My external hard drive will not show up in iMovie 10.0.4. How do I copy my movies into it?

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Hi bwright22,
Welcome to Apple Support Communities.
It sounds like you want to copy videos to and from an external hard disk in iMovie. Take a look at the article linked below, I believe it has the information that you're looking for.
iMovie (2013): Work with multiple libraries
http://support.apple.com/kb/PH14745
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To show the Libraries list: Click the Show button on the left side of the toolbar.
To hide the Libraries list: Click the Hide button on the left side of the toolbar.
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I hope this helps.
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Hard drive will not show on desktop?

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lloydie9143,
I would suggest if there is no important data (or data that cannot be moved to another device) to erase the external and reformat the drive.
System Profiler can see it which is a good sign and is recognizing the HDD, but reformatting it can often correct many of these issues with drives mounting and showing up for use.
I hope this helps
GL!

IMac external hard drive will not show up on desktop

I have an external 60 GB hard drive that is attached to an IMac.
I used to be to access this hard drive, but now the IMac will not see it and it does not appear on the desktop anymore. I have another Mac computer and have hooked this hard drive up to it, and it shows up just fine on this other computer's desktop, so I know the hard drive should be working.
What should I try doing to get this hard drive show up on the IMac?

Is the drive connected via USB or Firewire?
USB and FireWire Quick Assist
http://support.apple.com/kb/HT1151?viewlocale=en_US
What to do if your computer won't recognize a FireWire device
http://docs.info.apple.com/article.html?artnum=88338
Dealing with FireWire problems (drives not mounting, devices unrecognized, etc.)
http://www.macfixit.com/article.php?story=20041221081432908
Common fixes for USB device issues (unrecognized, etc.)
http://www.macfixit.com/article.php?story=20070824012114701
 Cheers, Tom

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Evidence, as scant as it is from Disk Utility, suggests the Toshiba external
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So I wonder if there isn't a wire or defective circuit inside the box (enclosure)
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Most competent computer stores with a skilled staff would know of these.
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And if there were a Toshiba warranty, this action could void the same.
Adapters would be to 'test the idea of recovering any data,' if enclosure
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I'm not sure what else to suggest. When the dust settles, Toshiba may
have a residual warranty that could only replace that one with another.
Some older mailorder catalogs show these kinds of adapters, some use
USB port power, others also include an AC adapter so standard faster
HDDs can be used without an enclosure. This also helps if one wants
temporary access to a hard disk drive, but does not want to install it.
•USB drive cable adapter kit SATA and IDE HDD - google results:
https://www.google.com/#q=USB+drive+cable+adapter+kit+SATA+and+IDE+HDD
Companies also make hot-swap docks to allow fast swapping of HDDs
of either or both 2.5" and 3.5" size, these have their own adapter and
one simply puts drives inside from the top, like a bread toaster.
Hopefully you can take the Toshiba along to a computer store and ask
a somewhat skilled person there about getting the cable adapter kit or
another enclosure. The cable adapter would cost less & be quicker, yet
that would still involve opening up the failed HDD's enclosure for access.
Good luck & happy computing!

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My Hybrid 1TB Seagate Hard Drive will not work in my data doubler caddy installed in the optical bay

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Have you updated your "My Passport" software lately, there have been recent updates for Mountain Lion issues: http://community.wdc.com/t5/News-Announcements/bd-p/Announcements
http://community.wdc.com/t5/News-Announcements/Software-Update-WD-SmartWare-Upda te-1-3-4-x-for-Mac-Users-7-26/td-p/444122

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After security update my hard drive will not show

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