Back up hard drive does not appear

can't see the My Passport hard drive. what do I do? I trying to repair it but it show up an error. says"Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files."
Please Please help me, I have all my back up on that.......

See mount section in 1st linked article.
Disk Unmount Using Terminal
Disk Utility – Force Mount Disk

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HT201250 i have plugged in a hard drive into my macbook, opened time machine, but my hard drive does not appear. why?

i have plugged in a hard drive into my macbook, opened time machine, but my hard drive does not appear. why?

Look in the Utility folder which is located inside the Applications folder.
You don't want to do anything with the disk on a PC if you want it to work on the Mac. They both use different formats.
Allan

Hard drive does not appear on the Desktop

Hard drive does not appear on desktop. Can only be found in the applications folder.

Go to Finder -> Preferences, click the General icon, make sure the appropriate box is checked.

Finder & Dock do not work - Mac Hard Drive does not appear on Desktop

Until yesterday, my powerbook was working properly.
This morning, I wanted to use it and I had the following problems after login.
1/ My Mac Hard drive does not appear on my dekstop
2/ My dock appears but no icon works when I click on them. So, I can't open finder. I have no response.
3/ Furthermore, my top bar (with clock, login name, Airport icon...) appears but it is frozed.
I try several solutions as :
- rebooting in safe mode,
- rebooting, with in the same time, hold different keys (option, apple, p & R)...
As of today, no solution works.
Thanks for your help.

A.CHAMP wrote:
Nota: if i used my daugther login (she is not admin), I have the same issues.
Ok, that's good enough. You may be able to repair this with the 10.5.8 Combo Update This is a fuller install, as opposed to an incremental "delta" update so it should overwrite any files that are damaged or missing. It does not matter if you have applied it before.
Remember to Verify Disk before update and repair permissions after update from /Applications/Utilities/Disk Utility.
EDIT:
I have around 5 Go space left on my Mac
Also, your getting very low on disk space. Try to copy some of the data off to other media. *Do it before you try applying the combo, you'll need the space.*
-mj
Message was edited by: macjack
Message was edited by: macjack

External Hard Drive does not appear in finder

We purchased a 1 TB G Drive Q from the Apple Store. It is connected to my wife's iMac running the most current update of Leopard by 800 firewire and appears on her desktop and works flawlessly with time machine. I am connected to the same drive intermittently with my MacBookPro also running the most current update of Leopard. i connect with 400 firewire. Initially the drive would not appear in the finder. for the initial backup, i turned the hard drive off and on and then it would appear and i did the backup but now when i connect to the 400 firewire port, it still doesn't appear in the finder. i would much prefer not to need to turn my back up drive off and on each time i want to use time machine. i should also mention that when i connect any of my garmin training devices or my power meter by USB it is recognized very quickly as a device in finder. any ideas? i understand this may be one of the problems fixed with SnowLeopard. thanks.

I am not sure what you are attempting to do. I assume that you are not trying to connect two computers to the same external drive at the same time. That will definitely be problematic. In order to effectively use Time Machine with two Macs, you should partition the drive into two partitions. Also make sure that the drive is using a GUID partition scheme.
bd

External firewire hard drive does not appear on desktop

I have an iMac intel running OS 10.8.1. All of a suddden my firewire external hard drive no longer appears. System profiler does not
recognize it as well. My macbook recognizes it. Rebuilt directory with discwarrior but still no resolution. Any thoughts?

Does it have its own power supply? Try a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
The 5 second timing is important to a successful reset.

Canvio External Hard Drive does not appear in MY COMPUTER

Sorry if the subject is in wrong section of the forum.
I bought an External Hard Drive to use with my Windows 7 laptop. When connecting, sounds like a new device is connected, also appears listed in DEVICES & PRINTERS, but does not appear in MY COMPUTER, becoming impossible to access it anyhow.
Procedures about how to format or change device letter (in DISK MANAGEMENT), although the device has been also shown there, haven't work.
"Drivers" are listed as updated.
Any suggestions?
Thanks!

Jerry, thanks for trying to help.
I download the KillDisk as your adviced.
The Hardware appears there like:
Hard Disk 2 (82h) TOSHIBA External USB 3.0 - [DEVICE IS NOT READY]
Local Disk (2 - [DRIVE IS NOT READY]
Available actions for each are: Mark / Unmark / Refresh.
Any possibility of it is broken, or something?

My external hard drive does not appear.

So I have a 500 GB USB 3.0 HDD. It does not show up in the Finder. It also doesn't show up in Disk Utility, Time Machine, or the terminal command diskutil. I used both USB ports and it still doesn't work. I even tried a normal USB 2.0 cable and it still doesn't show up. The disk's packaging says it is compatible with USB 2.0, and it can be recognized and read on other computers, but not mine.
Also, if my computer is booted with the hard drive plugged in, it gets stuck at the gray screen. Holding C during bootup also causes it to get stuck.
The hard disk is encrypted (filevault 2) and I make all mounted drives appear on the desktop.

Hey guys,
I am having the same issue with my HD. It was working one day and then the next my mac does not recoginize that it is even pluged in....yet I can move my external hd to my macbook pro and it sees the drive. I have tried shutting down the system, using the Y connector, using an alternative power source, Reformating the HD, and still nothing works, yet it works on all my other MAC's and I have 5 totall macs! I don't get it, why all the other mac sees it but this one want. I have tried to plug in other external HD to the mac that is not reading the HD and it will work with them. Any ideas as to why it want see this one HD?

Replacement Hard Drive does not appear in Disk Utility.

I've replaced the defective HDD in my MBP(A1278) with a 500GB Western Digital one after it failed the Hard Drive test in AST. The old drive is detected internally without issue but the new one does not show up in disk utitlity. I have reformatted to use a GUID table and have made sure it's partition is OSX Journaled. It doesn't show up at all. I proceeded to do an install using a USB drive adapter and the OS installed just fine(same drive), when I put it back in the MBP it still doesn't detect. I would suspect the cable but the old drive shows up and runs diagnostic just fine(fails). I've actually gone ahead and tried three other new drives(2 seagates(500GB, 1TB XT) and 1 500GB HGST) and none of them detect, only the original. Am I missing some sort of firmware update or is there a limited physical issue?
All help would be appreciated, genius bar isn't an option, the closest one is 400km away.

Until you replace the cable you won't know for sure. Do you have a SATA to USB adapter to connec these other drive to and to connect your original drive to? If you do connect the original drive and do a Verify Disk in Disk Utility. If it comes back OK, no repair needed or even if a repair is need that succeeds, your original drive is OK and it is the cable that is causing all the problems.
I suggest you stay away from WD drives. They don't have a good track record with Mac computers.

My hard drive does not appear in the Finder window

I installed a second internal hard drive inside my G5, but it never shows up in the finder window, nor anytime I try to access files from within applications (it appears on the desktop though). How can I configure my computer so that it always sees this drive and grants me access?

The reason for resetting nvram is to force the G5 to rebuild the device tree, which it seems "loath" to do without a kick start.
Swapping drives oddly enough seems to leave a profile in nvram for the old device.
Personally, booting into Open Firmware is easier, thorough, and if that was all it was, works (never liked the reboot over and over zap pram which, to reset nvram, must be done from cold boot).

Why does my seconds hard drive does not appear in the list of volumes in Settings - Performance - work volumes

Hallo,
the photoshop installations is really slow after updating to version 2014. So I checkt all performance related facts. I the settings of photoshop I saw, that there is only the defauld drive (systemdrive) in list of volumes. This is not the optimal case. On a different PC (Windows 7 Pro), there are all volumes present that are listet in the windows explorer. I would like to change the Setting to a different drive. Where could be the problems?
I tried and changed:
- Changing SATA Mode from RAID to AHCI
- Updated all drivers (chipset, grapghic ... verything, dell's update-software offered to me)
here an image to show the problem (placing an image seams to be broken :-(
Thanks for help
Martin

Sorry, I've just deleted my previous post of a few seconds ago asking about your platform, because I realized you are on Windows because you mention "the C drive". Senior moment.

Hard drive does not appear on desktop

I am an Apple user for many years and normally can work out fix problems, but this has me stumped. My wifes brand new airbook has stopped showing either the internal or an external drive. Although the external is obviously connecting as if I pull the lead you get the usual error not-put-away-properly message.
Any advice welcomed!

Do your have Finder's Preferences set to display external drives? Try checking that.

Folders that I copy from my Macbook to my External Hard Disk does NOT appear on any other drive that I connect the Hard disk to (TV, PC, ... etc.)

I'm facing a bit of a problem.
Any folder I copy from my Macbook Pro to my External Hard Disk does NOT appear on any other device that I connect the Hard Disk to (TV, PC, etc).
The Hard disk format is "MS-DOS (FAT)".
The folders that are copied from Macbook appear when I connect the Hard Disk to my Macbook only, yet, the folders that I copy from a PC to the Hard Disk appear on Macbook, PC, and TV and are also available from editing from both Mac and PC.
I was advised to install "Paragon" software and I did but I'm not sure how to use it to convert the folders on the hard drive to any format that can be read on other drives or devices (NTFS or otherwise).
I'd appreciate some help. Thank you.

Hi Simon. How is it formatted, FAT or NTFS?
I only ask as OSX will only read NTFS partitions unless you install an App such as Paragon NTFS or Tuxera NTFS.

My backup hard drive does not have enough space for time machine to perform a back up even after erasing entire contents of bu hard drive

My backup hard drive does not have enough space for time machine to perform a back up even after erasing entire contents of bu hard drive. The hard drive has been in service for almost two years performing this function with no sign of failure. How do I adjust time machine perameters?

The only way to limit the size of the backup is to exclude data from the backup, which you can do in Time Machine preferences.
If you use multiple browsers, have you tried clearing your browser caches? However, that's just a stop gap if it works. You either need to limit what you backup or get another drive.

External Hard Drive does not mount

My 2TB external hard drive does not mount and I cannot get it to. Have tried turning the hard drive off and then back on. No response. Any thoughts as to how I can get it to be recognized?

You can try doing a SMC reset, if it doesn't work the first time it's totally OK to reset the SMC several times.
SMC RESET
Shut down the computer.
Unplug the computer's power cord and all peripherals.
Press and hold the power button for 5 seconds.
Release the power button.
Attach the computers power cable.
Press the power button to turn on the computer.
PRAM RESET
Shut down the computer.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
Turn on the computer.
Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the second time.
Release the keys.

Back up hard drive does not appear

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