External drives "locked" after restart

My iMac is acting very strangely: after a restart, an external drive (or more) may suddenly become "locked" for no apparent reason. Just restarted and got an error message that it could not complete a Time Machine backup because it is on a "locked Volume".
Running "repair" in Disc Utility fixes the issue, although it never reports any actual problem on the volume.
I have also started having kernel panics, which I think may be related.
Any idea what might be causing this?

Hello, see how many of these you can answer...
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
http://support.apple.com/kb/PH7029
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
How much RAM & free space do you have also, click on the Memory & Disk Usage Tabs.
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab, are there a lot of Pageouts?

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External Drive locked after time machine restore. Please help

I've restored my Mac OS x (10.6.8) from a time machine backup after reformatting the iMac's hard drive.
After restoring all my files the external drive that time machine uses is locked and I cannot seem to get it to unlock itself.
I've tried resetting the permissions on the "get info" panel without any success (Did a restart after every change- it just seems to go back to custom priviledges). I've also toggled the "Ignore Ownership" toggle on and off- again followed by a restart each time.
I have no idea as to what else I can do.
The external drive is connected by Firewire 800 and is a RAID 1 configuration using two 2Tb drives.
I don't want to lose my existing time machine files on that external disc- hense formatting it is out of the question..
Any ideas or suggestions would be most appreciated.

Thanks for the reply guys.
Unfortunately none of what you said was helpful ds store. **** of a lot of effort and risk to go through just to get the drive unlocked. It might work though.
baltwo, thanks for the link. Those computer lingo sentances scare me big time. I'm a photographer, not some IT junkie! Thanks for the link as that got me reading some other posts and I then came accross other variations of " a+rx" that work for some but not for others. Sounded a bid dubios to me, especially since I'll have absolutely no clue as to what to do if things do go pear shape.
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Problem is: Photosmart c6180 driver disapears after restarting Windows 7
Operating System is: Windows 7
Connection is Wireless
Printer is Photosmart c6180
Driver is for Windows
7 and has been downloaded multiple several times from the HP Website
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Click on another printer or the Microsoft XPS Document Writer
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Have you tried this: http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&softwareitem=mp-89191-1
Say thanks by clicking "Kudos" "thumbs up" in the post that helped you.
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External Firewire Drive locked after installing Leopard

One of my external drives is completely locked with a "could not be opened as you do not have sufficient access privileges" error.
I have tried a few things in Terminal that are suggested for similar problems on this forum but none of them have worked.
I did manage to remove the little padlock icon on the disk with one of these commands but I still cannot even open the disk. The moment I click on it it gives the error.
As this has a lot of important work on it. I would really appreciate it if someone out there could help me.
Regards
Nige

I should mention.
I had some problems installing Leopard whereby my admin account was reduced to a standard account and I couldnt do anything.
I followed instructions on Applesite to reset my account to admin by logging in as root then enabling my account to administer.
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I ran another terminal thing I found this is the result:
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total 16
drwxrwxrwt@ 6 root admin hidden 204 2 Aug 06:53 .
drwxrwxr-t@ 40 root admin - 1428 1 Aug 10:57 ..
-rwxrwxrwx 1 mel mel - 82 17 Jan 2008 ._pink camera
drwxrwxr-t@ 34 root admin - 1224 1 Aug 17:56 Jupiter
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Whew...

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I have a TC with a Western Digital 500GB my Book connected to the USB port on the TC that I use for network Storage. Everything works fine until I try to copy large files or directories from the Finder mounted share. After the copy freezes the external drive can no longer be seen by airport utility. If I look at disks it sees the disk but no partition. I have to power cycle the external drive to have TC see the drive again. Then I disconnect the drive and plug it in directly to the MAC and run disk utility and his repairs the journal. I have to do the repair every time it locks up. Should the external drive be formatted different or does it have to be connected to a USB hub. Or is this just a bug with the TC and afp ?

I have this very same problem.
I tried to copy a 4GB+ folder from the Macbook to the 500GB MyBook attached to my TC and it froze.
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Here's the scoop....Been running itunes 7.0.2 on Windows XP w/ no problems at all. I ran out of space on my internal drive so I added a WD My Book usb external drive last night. I want to use it for my main drive for the library, so I changed my library directory and then consolidated it all to the external drive, according to the directions here. Everything seemingly went ok.
Everything works just fine, until I sync up my ipod. It does the typical "slow way down, and maybe occasionally lock up" that I've read about so much here. Sometimes it will "finish" syncing after about 2-3 hours. That's not the big problem though. The main issue is that the library in the ext drive disappears as soon as I plug in my ipod. After syncing, my ipod is still unchanged, no songs added or deleted, and the ext drive is empty. The songs appear to be in my itunes library, but if I try to play any of them w/ the itunes player, it says they can't be found. And when I search the ext drive w/ windows explorer, it shows up empty. I have to run system restore to get them back. After that, everything is back to normal until I plug my ipod in again, then the whole vicious cycle starts over.
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It sounds like your itunes is getting confused in the drive letter of the ipod since the new external hard drive was added you might want to change the drive letter of the ipod.....
http://docs.info.apple.com/article.html?artnum=93499

Serious external drive problems after installing Mavericks

OK, so now I am seeing multiple external drive problems. Here is my setup: A GTech 4TB drive connected to MacBook Pro via Firewire, formatted of 2 partitions of 2TB each (called GT1 and GT2). This is then daisy chained to two WD drives of 2TB each, called WD1 and WD2.
After installing Mavericks everything worked fine (in fact I have an amazing speed increase). However, after restarting my machine this morning I have the following issues:
The GTech is now a single partition called MyBook (obviously a hangover from the WD drives. I suspect the WD drive managment software) with NO data files. Interestingly it shows the following USED 1,106,870,272 bytes (1.11 GB on disk). This suggests that one of the partitions has disapeared completely.
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FIrewire & Thunder bolt drives are having issues with Mavericks, avoid same until a fix is issued if you can.
many are reporting same, there is a firewire fault and TB HD on external HD from LaCie (Seagate) and from WD especially.
Technicians are looking into it.
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Until then consider confining Mavericks use with USB HD.
Ive tested a very long line of USB HD on Mavericks, all seem fine.
Recommend anyone DO NOT ATTACH any WD MyBook externals (firewire, thunderbolt or otherwise).
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Links to Folders on a external drive changed after reboot

I've got the following problem:
I've created some links to folders on a external (Firewire 800, Lacie 2big Quadra) drive in my Finder.
At first glance they are working fine and looking good, listened under places.
But after Reboot the links are changed to random files or folders on my usual Mac HD. The links pointing to folders on the internal HD are working fine!
For example:
before: "Work, Projects, Invoices" – after: "proloj.msd;italianWS;logqhrscv.ll"
This happened (almost) everytime, so i can't really work with my places
I tried to start the external drive up, before the Macbook starts, but no change.
Is this a Finder bug or a problem with the external HD? Otherwise it's working very well. I heard some Rumours about the latest 10.5.6 Update and Problem with the finder?
BTW - i got all updates from Apple

It happened again – but now i got pictures
After freshly adding the links:
http://dort.entlang.com/before.png
And after reboot:
http://dort.entlang.com/after.png
And the new links are not so random as it seems! "lpoptions.1.gz" is always the first entry.

Can't see my external drive anymore after updating to 10.5.5

Hi! Another problem after updating to 10.5.5: I can't see my external drive anymore. It's a lacie quadra, plugged to my iMac via firewire 800.
Really hope they fix this update really soon...
Any of you knows how much time Apple usually takes to solve upgrade bugs like these we're all experiencing with 10.5.5? Do they do it fast?

Hi Barry, I'll eventually do, but there are other people that have had the same problem right after upgrading to 10.5.5. I really think it's an os x bug, just like the other graphic problems that people are reporting now.
I think Apple should take these reports quite seriously.
Anyway, also think that probably these bugs are confined to iMac intel, as some one else pointed out before in this forum, because some friends of mine upgrading their MacPro, didn't have any trouble.
Bye!

External drive disappears after installing NTFS-3G

Hi I recently install NTFS-3G in an attempt to write to my external HDD. but after installation I received an error message so I uninstalled it. Now when I plug my external usb disk on my mac it no longer shows up??? what can I do?

I have had exactly the same problem with my Toshiba Laptop running Vista Home Premium for 5 months. I have continually tried updating and checking this site for a fix, but haven't had a clue. My Son-in-law works for Microsoft and uses iTunes extensively and he can't figure it out either. Toshiba has no answers.
I am beginning to believe that Gates has scored one-up on Jobs by planting something in Vista that crashes the drive when you try to use Apple software.

External Drive Locks System

Last night, in preparation for receiving another 1tb My Book Studio Drive, I attempted to configure a mirrored RAID with the hope of just adding the new one when it arrived. I used Disk Utility to set up the RAID and OS X asked me to restart using the power button. When I power off then on the display darkens and asks to restart using the power button again. I've tried starting in safe mode with no luck and also with my Leopard upgrade dvd with the same result.
OS X starts up fine when the drive is disconnected. Any suggestions? Thanks. (i am a mac newbie by the way)
Larry

The answer would be to not have the drive connected when you first boot the machine. However since I do not know the particulars, I can only make a guess at to the issue.
Boot the machine normally w/out the drive connected. I am assuming you loaded the drive utilities that came with the storage unit, so the easiest step here would be to un-install the drive utility software and start over. (Just drag the software folder from the Applications folder to the Trash can to un-install). Once you have removed the software and re-booted the system, plug the external drive back in and re-format it for OS X. I only say this because your earlier comments lead me to believe there is not any information on the drive, if there is, obviously don't format it just see if you can access the drive normally.
The software in this case is probably the culprit, so once you remove it, you should not have a problem with the system trying to create a raid array.
Don't worry if the system slows down when you first connect the drive, 1TB is alot of storage and the system will probably take a few moments to read it.
If this doesn't work, post back and we will go to the next step.
Regards,
Anthoney

External Drives Locked

I know this has been discussed quite a bit but I cannot seem to get things right. I have been trying all of the Terminal codes to no avail. I was hoping someone might be able to help me out. Here is where I am at. I have 3 Lacie External drives that are locked. I cannot access them at all
Get Info.
Greg (Me) CUSTOM
Greg (Me) CUSTOM
(unknown) CUSTOM
everyone CUSTOM
In terminal I ran:
lO@ed /Volumes/600_Gig
And Got:
drw-rw-r--@ 17 Greg Greg uchg 646 Dec 9 10:20 /Volumes/600_Gig
com.apple.FinderInfo 32
0: user:Greg allow list,addfile,addsubdirectory,readattr,writeattr,readextattr,writeextattr,readsecurity
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Thanks!
Greg Kuhn

Run Disk Utility and Repair Disk Permissions.
Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select FirstAid, then click: Repair Disk Permissions. Quit DU when it's finished and reboot.
Carolyn

ITunes Media on External drive locked, internal - okay

First I am running OSX 10.8.3 & iTunes 11.02. I have split my iTunes library being that I have ripped a significant amount of my DVD & BluRay collection. I keep the Movie & TV media on a 6TB external drive while the music on the internal 1TB drive. Recently I haven't been able to fill in any of the meta data in the 'get info' of the movie & TV files. They are greyed out. The music files on the other hand are fine and I can edit them to my hearts content. Here's a screen shot of my movies Info folder:
This is basically the same permissions as the rest of the system, internal start up drive as well. Except for my home folder and everything included (e.g. Music, Pictures, etc.) which is as follows:
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Copy the iTunes Library.itl file from the old computer. iTunes can handle a change in drive letters as long as the relative paths from the database to the media is the same - typically where you have an iTunes folder (preferably in the root of the external drive) that contains both the iTunes Library.itl file and the iTunes Media folder, as follows:
See turingtest2's user tip on Make a split library portable for steps that may be necessary to bring your library into this layout.
Then, hold down SHIFT as you start iTunes, and when you see this prompt:
click on Choose Library..., navigate to the iTunes folder on your external drive, and select the iTunes Library.itl file.
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Not booting with external drive attached after itunes 10 installed.

Since installing itunes 10, my computer will NOT boot into Mac OS X with the external drive attached. It consistently freezes at a grey screen with the apple logo.
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AndyPeardrop wrote:
if I forget to UNPLUG the Lacie (by pulling out the Firewire cable), when I boot the Macbook it will give me the Question Mark.
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External drives "locked" after restart

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