After installing snow leopard my external hard drive won't show up on screen or backup

Afer installing leopard my external hard drive won't show up on my desk top. It also won't backup my hard drive with time machine. I need help.

Try going to finder preferences, general, make sure show these items on desktop external disks is clicked. You can also go to sidebar (same pane) and click it there so it will show when you open your HD. Time Machine>system preferences>time machine>turn it off click select disk, make sure the correct disk is selected, the turn TM back on. Hope this helps.

Similar Messages

Install snow leopard from external hard drive-terminal problems!

hi everybody ,
i have a big problem :s
wanted to restore and getting "Restore Failure Could not find any scan information... then i've followed some terminal commands..finished restoring and couldn't boot cause i only find Macintosh HD when i use "alt option" when i restart my macbook pro and even if i go to "startup Disk" i can find my partition of the external hard drive but when i click on it nd do retart it's can't boot ...another thing is tht m having a slow start and it's ask for my Password (i've no problem with password it just doesn't ask me to enter it before and i have internet and server failure)
Due to terminal commands?? :((
Plz help :s

"How to install Snow Leopard from an External Hard Drive"
* Launch Disk Utility
* Select the External Firewire/USB device that you want to use as the boot drive for the upgrade
* Click “Partition” from the menu options
* Select 1 Partition, then click “Options” below the partition scheme
* Select the top option for “GUID Partition Table” – it MUST be GUID to be bootable!
* Click OK to create the GUID partition (this will reformat the drive, ie: all data is lost)
* Next, click the “Restore” tab within Disk Utility
* Select your newly made Snow Leopard 10.6 Install DVD image and restore this image to the GUID partition you just created OR…
* Alternatively, you can select the Snow Leopard Install DVD and restore directly from the DVD to the GUID partition
* After the restoration is complete, your GUID partition will now be bootable by Mac OS X!
* Reboot the Mac holding down the “Option” key to pull up the boot loader, select the Snow Leopard install drive you just created rather than your default Mac OS hard drive
* Install Snow Leopard as usual!
Hope this helps!

How to install Snow Leopard onto external hard drive.

I'm currently running on 10.5.8, and I just bought the Snow Leopard installation disc to update to 10.6.3.
My mac has been running on an external hard drive for about a year. The internal just stopped working.
I want to install Snow Leopard onto my external hard drive, but all of my files are on there, and I read that if I do the install, all of the data will be erased.
If I used time machine to back up the files before I do the install, are they at risk of being erased, since they will be back-uped on the external?
This is probably super obvious, but I want to be very careful with this.
Any help is very much appreciated!
^__^

1. The data won't be erased unless a problem occurs.
2. The Time Machine backup should be on a different drive, as drives can fail.
(92634)

After installing Snow Leopard, my external apple keyboard does not work. Any ideas?

After installing Snow Leopard (v. 10.6.3), my external Apple keyboard no longer works. Any ideas?

The laptops are called MacBooks there really is no MacPro laptop.
MacBook Pro Apple Support -
MacBook Pro specs 17-inch model
MacBook Pro

HELP! External hard drive won't show up in finder!

Last night, I was updating my macbook (from August 2008, still runs on leopard) and it needed to restart. I forgot to eject my LaCie Porsche 1tb external hard drive first and, when it rebooted, I got the error of death (aka "disk was not ejected..."). When connected to the USB port, the drive lights up, I can hear it spinning, but it won't show up in finder and I can't see it in Disk Utility to repair it (after the first error of death, the computer wouldn't even acknowledge that I had the drive plugged in). I've tried plugging it into the different USB ports and even on a different macbook, but no luck in getting the computer to recognize it long enough to use Disk Utility or DiskWarrior. Any tips on how I can get my macbook to read the drive again?

If the external hard drive is not showing up in Disk Utility when connected to two or more different computers, then the problem is with the hard drive, it is broken. Get a new one.

USB external hard drive won't show up in Lion

My external USB hard drive won't show up in Finder, even though it's visible in both the Disk Utility, which says the drive is fine, and in Terminal.
How can I get it mounted? I have researched the issue and found no solution.It disappeared while I was downloading IOS6.
It has all my iTunes and iPhoto files!
Many thanks

I have a very similar issue. I have a seagate external usb drive 500 GB that is partitioned. One FAT 32 the other MAC OS Extended (Journaled). It has suddenly for no apparent reason stopped being able to mount the Mac OS volume. The FAT 32 vol. works fine. Disk Utility says that it is fine when I do a repair or verity etc. When I click on mount, it won't work. It says mount failed. Try running First Aid on the disk and then retry mounting. Same thing happens once that is done. ??????Any ideas?????

Using snow leopard on external hard drive w/Mountain Lion OS Mac

I need to use Snow Leopard in order to use some expensive software that will not work in Lion or Mountain Lion. All of our computers have been upgraded to Mountain Lion, whcih doesn't support Rosetta. I was able to install Snow Leopard on an external hard drive and it boots up fine from another computer (that is not mine) that has Snow Leopard as its OS.
But when I boot up from my MacBook Pro (running Mountain Lion) and from my Macbook Air (also running Mountain Lion), I can't seem to do it. I hold the "option" key when starting and I get the option to start from the computer's HD or from the external firewire Snow Leopard drive. When I choose the Snow Leopard drive, it crashes and gives me that black screen with the kernel (?) message in several languages that I need to hold down the Power key to turn off the computer and reboot.
How can I get my MacBook Pro or my MacBook Air to boot up from the Snow Leopard external hard drive? (Once again, it DOES work with a Mac that has Snow Leopard as its OS).

Richard Signes2 wrote:
The question is: How do I start up my MacBook Air (or MacBook Pro) from an external FireWire Bootable hard drive with Snow Leopard on it? When I start up either one with the "option" key pressed, I get the option to start up with the external Snow Leopard hard drive, but when I select it, it crashes, as described above.
You can't if the Mac is a Late 2011 and later, perhaps if it's a Early 2011 (as some came with 10.6 and some with 10.7) and it should be possible for all Intel Mac's earlier than Early 2011.
Also, like what has occurred in the past, Apple does eventually issues a firmware update in later OS X versions so that earlier OS X versions, despite the Mac previously being able to boot from them, won't any longer. However far as I know Apple hasn't done this quite yet, but will one day.
Baring those issues, if you installed 10.6 on a external drive using a machine specific black/gray disk from another Mac, it has hardware drivers for that model/year of Mac only.
If you used the 10.6 white retail disks from Apple, it only has hardware drivers for all previous Intel Mac's that came originally with 10.6.2 or earlier from the factory. Mac's with 10.6.3 or later on the drive from the factory have different hardware drivers, thus not on the 10.6.3 white retail disk.
To find out what OS X version came on your machines, use the free MacTracker and use your model indentifier in the Apple menu More > Info (aka System Profiler)
So for those Mac's that originally came with 10.6.3 or later, machine specific disks must be gotten from Apple, or if your really talented, it's possible to create a univeral 10.6-10.6.8 install disk by combing the 10.6.3 image with the 10.6.8 combo update which will boot on any Intel Mac if the firmware permits and the hardware drivers are compable.
There is a method to bypass the firmware and install on Mac's that are Early 2011/Late 2011 via Target Disk Mode, or via taking the drive out of the machine as some Late 2011's use the same hardware drivers as the Early 2011 machines (only a processor bump basically)
How to revert your Mac to Snow Leopard
For the MacAir, you can install 10.6 via a USB thumb drive, of course provided it has the hardware drivers.
http://www.maciverse.com/install-os-x-snow-leopard-from-usb-flash-drive.html
So in your case you likely should be rather looking at running Snow Leopard in a virtual machine program in Mountain Lion, which MichealLax over at MacRumors has perfected a technique.
Windows in BootCamp or Virtual Machine?
http://forums.macrumors.com/showthread.php?t=1365439

Running Snow Leopard from External Hard Drive

I have some teacher software that lion won't run. It was suggested to me to run snow leopard from an external hard drive. I have an external WD hardrive for mac. Can someone share with me on how to do it?
Thanks!

Have a look here
http://support.apple.com/kb/HT1948

Hp Pavilion HPE PC H8-1214 won't boot up after installing a Western Digital External hard drive

I just recently installed a 3TB Western Digital External hard drive to use for backing up photos and since then I am now having problems with my computer.
I will turn the computer on, but nothing happens. The power button lights up, but the small stack of CD's that would normally light up on the front, while it is powering on, does not light up. My monitor screen just stays blank and nothing happens.
If I turn off the desktop and unplug the external hard drive from the USB, let the the PC sit for 30 sec to 1 minute and then power it back on, it works properly.
PC is an HP Pavilion HPE PC h8-1214
Product #: qw701aa#aba
Running Windows 7
Any advice would be greatly appreciated.

Thank you for your reply. I'll answer one at a time:
During these times when the computer seems to turn on but doesn't load Windows, do you get any type of image or error on the screen? Nothing appears on the screen at the time of boot. I don't even see the 'HP' logo or BIOS prompt.
Have you tried switching the power cable or testing the power cable in a different wall outlet (especially if it is plugged into a power strip, try it directly plugged into the wall). Yes I've plugged it into multiple outlets with and without surge protection with multiple power cables. The power supply doesn't seem to be the issue as it engages all fans etc.
If you've tried a known good power adapter in a known good outlet, it may be an issue with the power supply or a loose connection inside the computer (RAM, power, video card). I've re-seated all components, cables etc to no avail. I'm reasonably experienced in IT support and have never experienced an intermittent problem such as this.
The PC has been plugged in since I made my original post on 02/23/13. Each day I've powered it up to see if it would boot and had been unsuccessful. This evening, I walked by and hit the power button and instantly the drive 'disk' lights lit up, keyboard and mouse lit up, and it booted successfully (after 10 days of no luck). Now I'm afraid to shut it down b/c I never know when it will boot again. There are no system errors and it's running without any issues - until I shut it down again. The IT support guru's at my place of employment feel like it may be an issue with the motherboard since I don't see a bios prompt when this issue occurs. The unfortunate part is that I bought this re-furbished and the HP 90 warranty has expired...
Any further advice or troubleshooting assistance would be greatly appreciated!!

Install Snow Leopard on External FW Drive

Snow Leopard will only install on a GUID partition. I usually have two or three separate volumes on my external drive. If I partition my drive prior to Snow Leopard installation, the scheme is Apple partition map and I cannot install Snow Leopard on any volume. So I assume in order to do an install of Leopard, I must install to a single GUID partition because it seems there is no option to make any of the volumes a GUID partition. Am I correct? On this particular drive, I wanted to have a bootable clone
of my MacBook Pro HD, a bootable disk image of my Snow Leopard Install Disk, and a third scratch volume for temporary video storage. What would be my strategy be to accomplish this?

Tom Dignam wrote:
Snow Leopard will only install on a GUID partition. I usually have two or three separate volumes on my external drive. If I partition my drive prior to Snow Leopard installation, the scheme is Apple partition map and I cannot install Snow Leopard on any volume. So I assume in order to do an install of Leopard, I must install to a single GUID partition because it seems there is no option to make any of the volumes a GUID partition. Am I correct?
no you can have any number of volumes on a GUID partitioned drive.
select the whole drive (model, not name) in disk utility. click on the partition tab. set the number of partitions to 3 (or whatever), click on options and select GUID. set the formats for each partition, adjust the relative sizes and hit "apply".
On this particular drive, I wanted to have a bootable clone
of my MacBook Pro HD, a bootable disk image of my Snow Leopard Install Disk, and a third scratch volume for temporary video storage. What would be my strategy be to accomplish this?
this will work just fine once you reformat the drive as above.

My external hard drive won't show up on my MacBook Pro

So, I'm trying to transfer my music from my PC to my MacBook Pro. I put all my music on an external hard drive, but for some reason when I plug it into my MacBook it won't show up on the desk top. I've already changed my preferences in Finder so that hard drives and disks will show on the desktop, but still nothing. I looked in utilities to see if the hard drive was there, and still nothing. The hard drive is a Toshiba and is fairly new, the light goes on when I plug it into my laptop, so I'm very confused. Can anyone help me with my predicament?

Check that the data cable is securely inserted at both ends.
Try a different cable.
If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
If you're connecting it directly, try a different port.
Disconnect all other devices on the bus, or as many as possible.
Test the drive with another Mac. Test another drive with this Mac.
If the drive is bus-powered, but has an AC adapter, connect the adapter.
Boot into Recovery and launch Disk Utility. Is the drive recognized?
If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock.

My external hard drive won't show up on my macbook air, and my iPhone when connected won't show up as connected in iTunes, help

When I connect my external hard drive to my MB Air it is to recognizing it. It did 2 days ago and it is compatible I have been using it for a month now. Also when I connect my iPhone 6 to it, it won't show up in iTunes anymore......please help

Check that the data cable is securely inserted at both ends.
Try a different cable.
If you're connecting the drive through a hub, connect it directly to a built-in port on the Mac.
If you're connecting it directly, try a different port.
Disconnect all other devices on the bus, or as many as possible.
Test the drive with another Mac. Test another drive with this Mac.
If the drive is bus-powered, but has an AC adapter, connect the adapter.
Boot into Recovery and launch Disk Utility. Is the drive recognized?
If the drive doesn't work under any of the above conditions, and if another drive does work with the same Mac, then the drive has failed. You may be able to salvage the mechanism by removing it from the enclosure and installing it in another one, or in a drive dock.

My Passport External Hard Drive won't show up

I've been using a My Passport external hard drive for the past two years, and it's always worked perfectly fine. All my files are on it since my Macbook Air can't fit much. But just recently, I plugged it in and the disk runs, and the LED light flashes, but it doesn't show up on my computer at all. What should I do? I don't think it's a bad cable because otherwise it wouldn't run at all.

There is also a chance that the cable may have a poor
connection, as there are several contacts inside and
the cable ends may not be making a connection. As
power to run the device may get there, data may not.
A spare known-good cable is also something to try;
be sure to follow the shutdown/restart as previously
suggested since the device may not appear correctly
should it be disconnected improperly, at any time.
A shutdown (then dis or reconnect) lessens the likeli-
hood of there being an error message, or loss of the
ability to use the external drive at all. When it doesn't
appear on the desktop at all, you have to be careful.
Good luck

New external hard drive won't show up in disk utilities...

I have a 2010 macbook pro 13" and just bought a 1tb toshiba canvio external hard drive.
The hard drive itself has a USB 3.0 hub running out of it and the specifications say that it needs to run into at least a 2.0 hub, which I have.
I know I will need to reformat the external drive to get it to work on a mac, but it won't show up at all when I plug it in... the drive starts spinning but there is no recognition by my mac.
Does anyone know what this is and how to fix it?

So far all MacBook users have been able to use this drive as a USB 2.0 by using a USB 2.0 cable with a micro usb connector (same as smartphones, Kindle, Nook) on one end. Connect the micro connector to the opening on the left side of the USB 3.0 connector on the Canvio - if you look closely you'll see that side is exactly like the USB 2.0 micro receptacle. That's all you need to connect as a USB 2.0 - the other connections are for USB 3.0 which no Apple system has yet (Dec 2011). Connect the other end (a standard USB type A plug) to your MacBook and it will work. If you want to use it for Time Machine, you'll have to reformat it. None of the supplied software will work with Mac You can read more at this thread:
https://discussions.apple.com/thread/3510032?start=0&tstart=0

Installing snow leopard on new hard drive - disc not seen or found

I can't provide too many details right now as my hard drive is out, and I'm trying to reinstall an operating system.
Problem: Installed a new hard drive purchased from reputable repair store. Last installation disc I have is OS X Snow Leopard. When I get to the point to choose where to install it, it is not seeing the new hard drive. I've double checked that the wires/bar connecting the actual hard drive are snug. Could there be another problem? Something to do with Lion? I've read several forums, but to no avail....
Computer: Macbook Pro unibody. Probably mid 2009.
OS X: The last one before Maverick... 10.8.5
The reason I am putting in a new hard drive is that my computer was having trouble starting up or unexpectedly crashing, although I could do a Safe start or Diagnostic (d). So, on the old hard drive, I did PRAM reset, and Disk Utility, but could not run the Apple Hardware Test, so I took it in. There is a little issue with battery not being full, but they did not think that was causing the problem, and that it was probably a hard drive issue. With the new harddrive... they suggested trying to download an OS from linking to another computer by firewire.... The other computer, (Macbook 2 GHx intel Core 2 Duo, 4 GB 10067 MHZ DDR3, OS 10.8.5) does not have a firewire, but does have thunderport, so I tried doing a Target start to reboot... but Macbook Pro did not read the 2nd computer (Macbook). Then I found my old Snow Leopard disk and here I am...

If the repair store installed the drive, I'd take it back and let them make it work. Take your Snow Leopard DVD also.

After installing snow leopard my external hard drive won't show up on screen or backup

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