None of my Lacie external drives will mount!

They were showing up yesterday, but today none of them will mount, whether it's connected thorugh USB, firewire, etc.
I've restarted, The drive powers on when connected, but it just doesn't show up on the desktop...

May I take this thread a little farther with my perplexing question? I seem unable to start a new thread. OK... Here goes.
Just like "ufoclub", My FireWire externals just failed to mount on start-up when I returned from vacation. I assumed there was a problem with the drives. When I opened disc utility, one of the two SLOWLY appeared in disc utility, but it was assigned a random name. When I tried to mount it, it simply disappeared.
Next I tried unplugging the other drive, and re-starting... Same deal. Next I plugged both back in and re-started... No dice. Then I repaired disc permissions on my system drive, and tried again. Still not working.
At this point, I concluded that both drives must have taken a power hit, even though everything in my studio is on a UPS. I brought both drives into the office, plugged them into my G4, AND they both mounted immediately. I changed out both FireWire cables on the Mac Pro, and tried it all again. Still nothing. Back to the G4 with them... They show up on the G4 just fine, but now the Pro won't even see them over the network. Repaired disc permissions again. Still nothing.
Could 2 of the FireWire ports on my Pro be toast? I have Digi 002 plugged into one of the ports, and it works just fine.
FireWire Drives - Rocstore
Computer - Mac Pro dual 3.0, with dual 23" cinema... OSX 10.4.8 - Two internal, 500 gig drives.
Running Pro Tools LE and Logic Pro.
Help?
Mac Pro Mac OS X (10.4.8) Dual Cinema-Logic Pro

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Why are my three LaCie external drives not going to sleep with the new OS X Mavericks?

The only problem I have, is I cannot even mount the drives to format them!
I have a feeling that the partition map is bad. Does the drive itself report to DU? If the drive does show up, you can select that, and click the Repair Disk button under the First Aid tab. If that doesn't fix it, with the drive selected, click the partition tab and re-partition the drive. After that, I would erase the newly created volumes with 1-pass/zero out option selected and restore the data that was on the external from TM.
If none of this works or if the drive itself (not the volumes) doesn't show up in DU, you either have a bad drive or bad controller in the external case. How old is the Ultramax? Just wondering if it might still be under manufacturer's warranty. I would check to see if you are still eligible from the manufacturer's warranty and get the whole external unit replaced. If you are out of warranty, I think it likely that you need to replace that external with a new one. I've had a drive go bad in an external case (this one I could still mount but the heads would 'freeze') and the controller on another external go bad (this one, the drive would not report to DU so I took the drive out of the enclosure, stuck the drive in another case and there was no problem with the drive.)

LaCie External drive not mounting

I just got a drive back from drivesavers.com it's supposed to contain all the recovered info from my Macbook Pro. However, when I connect the drive to any of my Macs the drive does not mount. Also, when I go to disk utility, there is no new drive listed in the left, only the 4 drives that are in my tower. Anyone ever have this problem.
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May have to pull the drive and try it in another enclosure. That enclosure could have a bad power supply, a bad bridge board or just a faulty connector.
The eSATA connection is last in the chain, I would not bother to try it. Since the drive is attached through the Firewire bridge, then through another bridge to eSATA, if FW isn't working eSATA is most unlikely to have any chance at all.
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All external Drives stopped mounting after repair disk permissions

My 2.3 GhzPPC G5 10.4.11 was running a bit slow so I ran repair disk permissions and now none of my external drives will mount, can't see them in disk utility either.
Drives work fine on my macbook pro.
I've searched for help but no luck..
Thanks for any advice...

Neil, you really should repair the disk before repairing permissions.
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Tiger Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
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http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
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How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005) ...
http://support.apple.com/kb/HT1436

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Hi,
My external LaCie external drive won't mount on my iMAC running 10.6.8 but will mount and show up on my PC as working fine, however I am not able to read the information on it as it was formatted for my iMAC. Therefore it leads me to believe this is a software issue.
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Cait,
Please try a SMC reset, it may take 2-3 attempts for it to work. Look over the instructions below carefully.
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.
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Lacie Rugged external drive will not show up after Yosemite update.

Lacie Rugged external drive will not show up after Yosemite update. It show up in disc utility I can't access it.

I have the exact same issue. Have you had any luck with a solution?

External drives will not mount if wi-fi is on

I was really unsure where to post this. If you think it should be in a different thread then let me know.
My problem is this. I have a Macbook that I use at home no problem. I teach at a college where there is a wi-fi connection that my Macbook automatically connects to. Recently, I have discovered that any external drives will not mount until I switch the wi-fi off. Additionally, almost everything I try and do causes the spinning beachball for 10 minutes or more at a time.
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It was not until Mac OS X 10.6.4, not possible to run on a 10.2 machine, that ExFat was supported.
Many older Macs also will not recognize GUID formatted partitions made to boot Intel Macs either.
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There may be NTFS support based on my tip here:
https://discussions.apple.com/docs/DOC-3003

External drives will not mount if the wi-fi is on!

I have had no replies where I had previously posted so I thought I would try here as I think that it is mainly an Airport problem.
My problem is this. I have a Macbook that I use at home no problem. I teach at a college where there is are two wi-fi connections that my Macbook automatically connects to depending on where I am in the department. Recently almost everything I try and do causes the spinning beachball for 10 minutes or much more at a time. Additionally, I have discovered that any external drives will not mount on my laptop, unless I switch the wi-fi off! No-one else is having any problems at all.
One of the wi-fi connections is an Airport Extreme. Each morning my laptop gets the message that there is a problem and I need to update the firmware to 7.5.2. (I originally set the Airport up through my laptop) I am very wary of doing this as everything is working fine for the other 20+ laptops in the department and I have read lots of reports of problems with this update.
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I have searched the net and cannot seem to find any reference to this problem anywhere else. Any ideas at all why this might be happening will be much appreciated.

It was not until Mac OS X 10.6.4, not possible to run on a 10.2 machine, that ExFat was supported.
Many older Macs also will not recognize GUID formatted partitions made to boot Intel Macs either.
10.2.3 is the first system to support Apple Partition Map HFS Extended (Jornalled).
There may be NTFS support based on my tip here:
https://discussions.apple.com/docs/DOC-3003

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Robert
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I opened a 'Terminal' window and discovered that it appears I changed the owner. My username is bobbysteele. I changed it from 'admin' to my username (it's truncated - bobbyste). The permissions on the external drive are as follows:
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G4 Won't recognize Lacie external drive

My G4 will not display/boot my Lacie external drive. I've used it for several years, so it has worked in the past. We had a power outage and after that it won't regonize the drive. I tested the drive on my Mac laptop and the drive works fine, just not on my G4. It powers up when I plug it into a G4 firewire port, but won't dsiplay/mount on the desktop. I tried rebooting everything and unplugging all other USB and Firewires from the back. No use. Any suggestions? Thanks.

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It seemed to work for a little while. Under the CBR folder, there were 61 separate files of JPEG images alone. The first dozen or so seemed to come through alright, then I saw nothing but striated and partial (like 10% visible) images after that, no matter which of the JPEG folders I downloaded from.
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I'm appreciating the encouragement here. I don't feel like giving up and walking away from this without a fight. I'm not wealthy, but I'm willing to spend some bucks to see this resolved without loss.
Any suggestions on data retrieval services?
I'm sorry to seem reliant, because I'm not well-versed with these things, but it's because I'm proud to say that I never had one single issue with my G4 over the course of five years of daily use.

Seagate Goflex external drive not mounting

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Okay found out the problem, on my exfat formatted drive, after I upgraded to Yosemite it basically created a new partition, a corrupted partition and would not mount my drive. However, I could open it and see it in Disk Utility.
Here's what I did to fix it:
Goto disk utility to see the name of you drive.
Open Terminal and type: sudo fsck_exfat -d disk1s1(this should be the name of your disk)
It will ask for your password then press, enter and it will display all files on the disk.
Then is will ask: Main boot drive needs to be updated?
Type: Yes
It will update and say that you can repair disk in disk utility.
Do that, and it will show up on the desktop.
Link to original forum post if you need more information:
https://discussions.apple.com/thread/4154638?start=0&tstart=0
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I have an issue with time machine, it doesn't find the Lacie external driver it use to use. it is the same drive that I usaly use for time machine back ups. It is corectly plugged. What can I do ?

Hi,
I'm trying to back up my macbook with time machine on the Lacie external driver I usualy use for this, but today my computer doesn't find the driver. I haven't done back up in 6 month.
Today, the Lacie driver is pluged and running, but the computer just does'nt find it.
what shall I do ?

Some things to consider:
Is the drive mounted, i.e., visible via Finder and/or on the Desktop?
Is the drive still selected in System Preferences, Time Machine? If not, use the "Select Disk" button.
Is Time Machine still turned on (System Preferences, Time Machine)?
Can you see the drive (and mount it) using Disk Utility (in your Utilities folder)?
charlie

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However, it will function again if I eject the drive and replug it in.
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Hi George,
The one way I found to get the TM back on the rail is to access my back up disk from finder, choose the sparse disk image. Hit cmmd-delete and banish it.
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I keep getting error msg. 4 my lacie external drive that it unexpectedly quit. It then proceeds to go away and reappear again a ffew

Hi All,
Since I upgraded to ML, I keep getting error msg. 4 my lacie external drive that it unexpectedly quit. It then proceeds to go away and reappear again a few mins. will appear. It also mentions this ejection could destroy my data. I've already updated the Driver to the most current one ta LaCie had for my 500 GB Rikki External. That didn't help. I also tried Disk Utility to repair permissions No Help! Suggestions?

That would be highly unusual, since the Apple ID is almost always the email address, unless it's changed later, and normally has to be unique to set up a new Apple ID. In any case, if you have two Apple IDs (or more), you probably need to authorize the computer using both.
Regards.

None of my Lacie external drives will mount!

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