External Hard drive shows in Disk Utility, but not in Finder

usually when I see disk5s2 in my drives, either something with the enclosure is bad or the drive went offline without being properly ejected.

Have you tried clicking on the drive in Disk Utility and did a verify disk or Unmount then remount in Disk Utility, sometimes that has helped my drives come back online

already was solved, never mind then

Not a problem, you're welcome. I'm glad that allowed the drive to show up long enough to go through your data.
Definitely get it off those drives and that enclosure - definitely sounds like something is problematic with the enclosure.

So far all the data is transferring just fine? no corruption i take it?

Have you had experience with Carbon Copy Cloner?
You can do scheduled incremental backups which might help with your situation of always changing your files.

Similar Problem with Solution

On my unibody MacBook Pro running Lion OSX, I had my terradrive with my time machine backups disappear from my finder. When I went to the disk utility it showed up, but I tried to repair it and it said that it couldn't. I almost panicked and was ready to run around to the repair shop, but I noticed my finder doing other odd things.

So I ran the verify microscope icon on my utilities for my internal drive. Sure enough there was a problem... 'wrong number of hard links'... then I was prompted to startup and run the disk utility from my startup disk.

I recently bought Lion OSX from the App store and thought, oh crap, I don't have a startup disk. Fortunately research revealed that Lion OSX partitions the startup disk on to part of my harddrive. In order to boot from the startup disk and run the disk utility, you need to restart while holding down 'command R'.

I ran the repair disk and 10 minutes later, then after the success message, I ran a repair on the external hard drive just to be safe. The harddrive had no problems. I restarted and viola, all the problems were solved!

Thank god I didn't panick and go running on a wild goose chase to find a repairman I could trust, since I live hundreds of miles away from the nearest Apple Store.

thaiman said:

I ran the repair disk and 10 minutes later, then after the success message, I ran a repair on the external hard drive just to be safe. The harddrive had no problems. I restarted and viola, all the problems were solved!

Thank god I didn't panick and go running on a wild goose chase to find a repairman I could trust, since I live hundreds of miles away from the nearest Apple Store.

Click to expand...

You have one thing left to do: buy DiskWarrior from Alsoft.com and keep it in a vault so you can find it when you need it. The $99 is worth every penny X 100. Read the reviews. It works when Disk Utility doesn't, or when you can't even turn your machine on to get to Disk Utility. Be sure to get the right version for your machine.

Please help me, similar problem

My reliable 1TB LaCie w/ all Time Machines from two computers failed to mount a few days after I bought Lion. It has always been taken care of, almost always dismounted before unplug and/or power off, and always use the proper power adapter. I bought it in 2009. It was used in Australia (it is a USA model) with appropriate adapter for several months.

It wouldn't mount on the older comp either. It shows up in the disk utilities on both. I have it hooked up to the older comp (can't take Lion, so it is on Snow Leopard) and I am running a repair on the Terabyte main drive as we speak. The UI for that is dreadful. Right away it said:

Volume Repair Complete
Updating boot support partitions for the volume as required.

Now it just shows a stripey thing, with no indication of progress. How long should that take? It has been going for 20 minutes. If it fails will it tell me or will it just loop forever? The drive is making little drive noises but it doesn't sound like it's beating itself up. What if I click STOP REPAIR. I am afraid to.

I'm told the LaCies occasionally have bad power supplies. The existing one SEEMS fine, physically the drive is OK looking & the blue light is on, how would you know if it is bad.

External drive won't mount

Hi People,
I'm hoping that someone can tell me how to get my external La Cie drive to mount. I've tried using Disk Utility to repair the disk but I get the following message "Repairing volume failed: Unrecognized file system".
It happened after I closed the lid of my laptop on the drive without ejecting it first
I'd really like to not loose the 500GB of data I have on this external drive. I don't want to spend $99 on DiskWarrior for this 1 problem. Does anybody have any other advice for me?
Kind regards
Doug

Doug482 said:

Hi People,
I'm hoping that someone can tell me how to get my external La Cie drive to mount. I've tried using Disk Utility to repair the disk but I get the following message "Repairing volume failed: Unrecognized file system".
It happened after I closed the lid of my laptop on the drive without ejecting it first
I'd really like to not loose the 500GB of data I have on this external drive. I don't want to spend $99 on DiskWarrior for this 1 problem. Does anybody have any other advice for me?
Kind regards
Doug

Click to expand...

DO THE FOLLOWING:
here is a script ... open up script editor and paste this in

tell application "System Events" to set visible of disk "Name of Hard Drive" to true
tell application "Finder" to quit
delay 1
tell application "Finder" to launch
delay 1
tell application "System Events" to quit


then change "Name of Hard Drive" to the name of whatever hard drive you want and click run and it will pop up on your desktop!!!
Reply With Quote

rumirocks said:

You have one thing left to do: buy DiskWarrior from Alsoft.com and keep it in a vault so you can find it when you need it. The $99 is worth every penny X 100. Read the reviews. It works when Disk Utility doesn't, or when you can't even turn your machine on to get to Disk Utility. Be sure to get the right version for your machine.

Click to expand...

Can I ask you a question?

I have two external drives, one seagate one Hitachi, pulled from Lacie Porsche enclosures that woundn't power up anymore. When I stick the disks in a dock, they spin up, but I can't see them in Disk Utility or Finder (but System Profiler sees a mass storage device on that bus)

Is this something that sounds like DiskWarrior might help see the drives? They had been working perfectly when the enclosures were working ok, and they are spinning ok. Just not visible at all.

rumirocks said:

You have one thing left to do: buy DiskWarrior from Alsoft.com and keep it in a vault so you can find it when you need it. The $99 is worth every penny X 100. Read the reviews. It works when Disk Utility doesn't, or when you can't even turn your machine on to get to Disk Utility. Be sure to get the right version for your machine.

Click to expand...

A better idea might be to invest the $100, wait until you have a problem, and then buy it. That way it WILL be the right version, even if you have changed computers or upgraded the OS. At least for a while; no need to start the expiration clock until you need the utility.

And that is the problem with DW, TechTool, and all of the other utilities, is that it costs money to upgrade them. You end up rebuying them every year just to keep up with the OS. It seems to make sense to avoid that as long as possible by not buying them until you need them.

DW is pretty great, BTW.

tixrus said:

My reliable 1TB LaCie w/ all Time Machines from two computers failed to mount a few days after I bought Lion. It has always been taken care of, almost always dismounted before unplug and/or power off, and always use the proper power adapter. I bought it in 2009. It was used in Australia (it is a USA model) with appropriate adapter for several months.

It wouldn't mount on the older comp either. It shows up in the disk utilities on both. I have it hooked up to the older comp (can't take Lion, so it is on Snow Leopard) and I am running a repair on the Terabyte main drive as we speak. The UI for that is dreadful. Right away it said:

Volume Repair Complete
Updating boot support partitions for the volume as required.

Now it just shows a stripey thing, with no indication of progress. How long should that take? It has been going for 20 minutes. If it fails will it tell me or will it just loop forever? The drive is making little drive noises but it doesn't sound like it's beating itself up. What if I click STOP REPAIR. I am afraid to.

I'm told the LaCies occasionally have bad power supplies. The existing one SEEMS fine, physically the drive is OK looking & the blue light is on, how would you know if it is bad.

Click to expand...

Hi,

This issue sounds very typical of volume corruption which is a fairly common occurrence after updating the OS, especially if the disk was connected while you updated. I don't know why exactly, its just a trend we tend to see a lot around here.

The easiest way to restore the disk will be to format it. If data is a concern, you can try an application like DiskWarrior or Data Rescue 3. DiskWarrior is more likely to work if in DU you can see the old volume name (like Backup or LaCie) but it won't work if DU shows a volume like "disk2V4" or something along those lines.

If the later is the case, I recommend either Data Recovery or formatting the disk and restoring from a backup. If you need more help, we can be reached at http://www.lacie.com/mystuff. ~mn, LaCie

----------

CASLondon said:

Can I ask you a question?

I have two external drives, one seagate one Hitachi, pulled from Lacie Porsche enclosures that woundn't power up anymore. When I stick the disks in a dock, they spin up, but I can't see them in Disk Utility or Finder (but System Profiler sees a mass storage device on that bus)

Is this something that sounds like DiskWarrior might help see the drives? They had been working perfectly when the enclosures were working ok, and they are spinning ok. Just not visible at all.

Click to expand...

Hi,

I don't think DiskWarrior has much chance in this situation. That application repairs corruption on volumes but won't work if the disks are not detected at all. It sounds like whatever caused the enclosure to stop also fried the disks. A power surge or physical damage can do that to a hard drive. If you would like us to help investigate further via troubleshooting, give us a ring at 503.844.4500 (USA) or http://www.lacie.com/mystuff

~mn, LaCie

External HD not shown in Finder

After trying to empty Trash, I stopped the process (after 24 hrs! and over 900,000 items to go). The external WD 1 TB hard drive isn't showing in Finder. It appears under system profiler and disk utility. Unfortunately the options under DU are gray, including the verify button. This HDD contains all of my pictures, documents & music that I can't replace. Help please

Hi All,
Most of the info in this thread is above my head, as I am nowhere near being a guru. But I just wanted to drop a note in here that I experienced a similar problem earlier this year where my internal hard drive would randomly not show up in Finder. I'd try some of the tweaks suggested above, sometimes it worked and sometimes it didn't. This continued on for a number of months until finally my hard drive decided to kiss this world good bye and die on me, taking not all but quite a big handful of data with it that I had not backed up with Time Machine for awhile. For anyone who has had this happen, you know what a traumatic experience this can be. I tried to have a data recovery service get my stuff of my failed drive and they were unable to because of magnetic damage. So I guess the point of me sharing this sob story is that I'd suggest to anyone that is having any issues with a randomly disappearing drive, whether it be external or internal, you would be wise to backup your data in another location if you have even the slightest notion that something is amiss with your drive. Trust me, hard drive failure is NO FUN

External Hard drive shows in Disk Utility, but not in Finder

Before I start, I know that this question has technically been solved before, but not exactly in my case. Keep in mind that I'm a graphic designer, this is why I am so passionate about fixing this issue. So, here's the story. Yesterday, I sold my Mac mini (Late 2009). I had plans of buying the new MacBook Pro w/ Retina Display (15 inch), and that worked out perfectly. I bought the MacBook and sold my Mac mini. Prior to selling the Mac mini, I decided to format an old hard drive that I had, which was a 160GB hard drive. My plan was to sell the computer with the 160GB HDD, and keep my 750GB HDD. I know my fair share of computing and repair, so I replaced the hard drive myself, and reinstalled Mac OS X ML on the 160GB HDD. I installed the OS via external SATA to USB connection, and it booted up perfectly through that connection to my Mac mini. Then, when I took out the 160GB HDD, my computer booted to my priority internal drive, which was the 750 GB HDD, that I'm having problems with currently. It booted up perfectly, and all of my information was on it. So, at that point, seeing that everything was flawless, I extracted the 750GB HDD, from inside the computer and replaced it with the 160GB HDD, which I formatted, reinstalled ML on, and was planning on selling it with. The 160GB HDD booted perfectly and everything was working on the Mac mini, but then, I plugged in my 750GB HDD via USB connection, to see if my files and everything was still there, I got a message saying, "The disk you inserted is not readable by this computer" and it gave me three options underneath, which were: "Initialize...", "Ignore" and "Eject". I pressed on initialize, and tried to do everything that I possibly could, without formatting it, and all of the options like "Verify Disk" and "Repair Disk" were "grayed out", if you know what I mean. I tried plugging it into all 5 USB ports, but I got the same message. It was recognized in Disk Utility, but not in Finder. So, I sold the computer with the 160GB HDD that was working fine, but now I had another dilemma which was why my 750GB HDD, isn't showing up in Finder. I can hear the HDD spinning when I plug it in via USB. This Hard Drive has run Mac OS X Lion and Mountain Lion on it, I've never installed Windows on it. So, it was properly formatted for a Mac. Now, I went out and bought the MacBook Pro with Retina Display that I needed, and I tried doing the same thing, which was plugging it in via USB, and seeing if Finder would pick it up. Still, nothing. I ended up with the same message.

I've called Western Digital, and they told me to try booting up the 750GB HDD, in an older Macbook Pro, to see if it will boot, and recovery all of the files from there. The problem is, I don't know anybody with an older MBP. I called Best Buy and they said that they could take a look at it, but I would truly prefer by fixing this on my own, without having to pay them. That would be my LAST resort. I'm aware that I can't boot up the 750GB HDD in my new MBP w/ Retina because it can only carry SSD. So, I'm basically puzzled. If anybody could help me out, it'd be greatly appreciated. Like I said before, I'm a graphic designer, and I'm in desperate need of the files that were on my 750GB HDD. Thanks.

OldCorpse said:

Here's the hardware:

Late 2009 iMac 27" i7 2.8GHz 8GB RAM 1TB HDD Seagate running OS X 10.6.7

Problem external drive: Western Digital My Book Studio II - 4 TB (2 x 2 TB) USB 2.0/FireWire 800/400/eSATA Desktop External Hard Drive.

The WD drive is configured in RAID1, and about 40% full (i.e, there's about 900GB on it). It is connected to the iMac through USB.

I have a number of drives plugged into the iMac including a few more WD My Book drives. I don't shut the iMac overnight.

This morning, I saw one of the external drives (the 4 TB) was not showing on the desktop. I can't get it to show. Here's what I did:

1)I repaired permissions a few times
2)rebooted a few times
3)I disconnected the USB cable on both the WD and on the iMac, and reconnected several times.
4)I tried all the USB ports on the iMac. So it is NOT a bad port/ports.
5)I tried a different new USB cable. So it is NOT a bad USB cable.
6)I disconnected the USB cable completely, and connected the WD to the iMac through a FW cable and the FireWire800 port. So it is not a problem with the USB interface on either the WD drive or the iMac.
7)connected the WD drive to my iBook running 10.4.11 - same result. So it's probably NOT a problem with the iMac.

Throughout all this, all the other drives show up, but not this one.

There appears nothing wrong with it, externally, i.e. the drives spin up, and the LED lights show activity when I plug the USB cable to the iMac and pull it out again.

Here's what it looks like: I can see it in Disc Utility, though it doesn't show the name I gave it, instead it has a generic 2TB WD My Book Media and disk5s2 name under it.

When I select "info" it shows as USB connection bus etc.

I also have the WD Drive Manager installed. The drive appears there as well, but shows as Used Space 0% which is wrong (actually it's some 45%). Temperature: OK and RAID Status: Healthy. I launch the manager, and it shows the following info:

"RAID Setting: RAID 1
RAID Status: Healthy

Disk A Status: Good
Disk B Status: Good"

It is exactly the same situation and the same readings when I hook it up to my iBook.

So: Why is it not showing on the desktop (Finder), and why is it showing as 0% used in WD Drive Manager?

And: How do I get this to work? I have some very important data on it - that's why I had it in RAID1. Is the enclosure toast? Is it the RAID controller? What next? Can I just extract one drive, put it in a different enclosure and get the data off it? What do I do? Thanks!

Click to expand...

I ran into same issue. To gain access to drive, open disk utility and right-click on drive and select either "reveal drive in finder", or if that doesn't work, select "open drive", you can then select "get info" to check ownership, etc., try some of the other suggestions given here to get your drive to mount and show up in Finder. But in the meantime, you will have access to your Time Machine files.

Hello All, I've through many forums and this is the best one I found to describe my problem:
Only shows in Disk utility
Hard drives spins fine
I have verified and repaired many times
I have ejected many times
I have reset the computer many time
I have unplugged it and let it sit for days
I have changed the ports I use
The mount option is greyed out
Lacie Stripped Raid is "Offline"
Lacie Raid Slice is "Missing"
The repair and verify say "no errors" and "OK"

Any idea as to what is going on?
its a 4TB (2tb+2tb) HD using the thunderbolt port

Thanks for your time

is the hard drive partition greyed out too? or is it solid?

Volume Name
Partition Name


Could be the external enclosure, something with the chipset or power supply.
If you boot into the recovery partition does it allow you to mount in DU there?

The partition does seem to be greyed out as well. I'm not quite sure how to boot into the recovery partition...

I would suspect the enclosure. Something having to do with the raid controller.