External disk Unreadable

I plugged my LaCie into a NAS to try and download data via cable but it didn't work and now when I go back to my mac I get the message Mac OS X can't repair the disk… it says I can copy the files but they are iPhoto libraries and I am concerned just copying them to another disk could lose data and I can't access them via iphoto library manager.

Copying the Libraries won't do any more damage than is already done - it just may or may not succeed. So I would try copy them as you risk losing them entirely on that disk.

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External disks suddenly frequently 'unreadable'

I have 2 external disks that in the past few days have been connecting unreliably to my MBP.
Sometimes I can plug them both in (via a FW hub) and both will mount immediately - as they have always done. But it's becoming just as likely that a red dialogue box will appear instead - saying (I think) 'The disk you have inserted is unreadable' (with options to erase or initialise).
Switching the disks on/off and reconnecting to the MBP works sometimes, but not always.
Rebooting the MBP, with disk still connected works sometimes, but not always.
Neither of them show up in Disk Utility when reported as 'unreadable'.
Once they mount, they stay mounted.
I have eliminated the hub (by plugging them in individually) and the 400/800 adaptor (by connecting directly to the MBP with a FW800 cable).
Since both disks started behaving in the same way at the same time (one of them is only a few months old, the other maybe 18 months old - both are Lacie d2 quadras) I wonder whether the fault may be with the MBP?
I have always been able to get the disks to mount- eventually, one way to another - so far, over the past week or so. But there is no clear course of action that works every time.
Any ideas what might be happening here, and how to fix it?

It could. It could also be that one of the supplies was weak and that drive tried to draw power from the bus and eventually caused the other one to go. As much as I like LaCie drives, though, the power supplies are sub-par.
That being said, if one of the drives is under warranty you may talk them into sending you a replacement supply at no charge to at least see if that is what is causing problems.

External Disk Not Readable by OSX after Setting Drive Letter in Windows 7

My external hard drive, which was previously formatted as Mac OS Extended (Journaled), contains all of my purchased music. I have this external drive connected directly to my iMac via USB. My iTunes in OS X points to this drive.
After installing Boot Camp, I was able to read this external hard drive in Windows 7, but I changed the drive letter used in Windows 7 from E: to G:. Bad idea, apparently...
Now when I boot into OS X, I can no longer read the drive (although I can read it in Windows 7 just fine). I get the error message:
"The disk you inserted was not readable by this computer." [Initialize] [Ignore] [Eject]
When I use Disk Utility to attempt to Repair Disk, I get the following error:
"2010-11-24 08:43:41 -0800: Verify and Repair volume “disk2s2”
2010-11-24 08:43:41 -0800: Starting repair tool:
2010-11-24 08:43:41 -0800: ** /dev/disk2s2
2010-11-24 08:43:41 -0800: Invalid BS_jmpBoot in boot block: 000000
2010-11-24 08:43:41 -0800: Volume repair complete.
2010-11-24 08:43:41 -0800: Updating boot support partitions for the volume as required.
2010-11-24 08:43:41 -0800: 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."
I've searched for this issue in these forums and on the web and have not yet found a solution.
Is there any way to repair this external drive so that I can again read/write to it in OS X (WITHOUT losing my music)?
Thanks!

I had this exact problem. I bought a 1 TB My Book, formatted it with Disk Utility, and completed a successful backup. I also had some home videos on it and was using about 40% of the drive. One day, about a week later, I had the same "disk unreadable" message and soon panicked. Tried everything, but finally spent $100 for Disk Warrior and I was able to get my videos off, but it wasn't able to fix my drive, DW said I didn't have enough memory.
I reformatted and put my videos back on, but now will use a different drive for backups, so if it fails again I only lose my backups.

Clone internal disk(ufsdump) which has metadevice on external disk(sol 5.6)

Dear IT Experts,
I just help my friend. we planned to clone an internal disk of SUN Ultra 1 which is run using Solaris 2.6 (old).
Actually, this system has one external disk which has created before using metadevice.
The external disk (*/dev/md/dsk/d100 --> concatenation*) is used to save application data and connected to ultra 1 using SCSI device.
Here is the vfstab content:
+#device     device     mount     FS     fsck     mount     mount+
+#to mount     to fsck     point     type     pass     at boot     options+
+#+
+#/dev/dsk/c1d0s2 /dev/rdsk/c1d0s2 /usr     ufs     1     yes     -+
fd     -     /dev/fd     fd     -     no     -
+/proc     -     /proc     proc     -     no     -+
swap     -     /tmp     tmpfs     -     yes     -
+/dev/dsk/c0t0d0s1     -     -     swap     -     no     -+
+/dev/dsk/c0t0d0s0     /dev/rdsk/c0t0d0s0     /     ufs     1     no     -+
+/dev/dsk/c0t0d0s6     /dev/rdsk/c0t0d0s6     /usr     ufs     1     no     -+
+/dev/dsk/c0t0d0s4     /dev/rdsk/c0t0d0s4     /var     ufs     1     no     -+
+/dev/dsk/c0t0d0s7     /dev/rdsk/c0t0d0s7     /export/home     ufs     2     yes     -+
+/dev/dsk/c0t0d0s5     /dev/rdsk/c0t0d0s5     /opt     ufs     2     yes     -+
+/dev/md/dsk/d100     /dev/md/rdsk/d100     /export/home/oak     ufs     2     yes     +-
Running command "metastat" and "metadb -i" will give output :
+# metastat+
d100: Concat/Stripe    Size: 53031888 blocks    Stripe 0: (interlace: 64 blocks)        Device              Start Block Dbase        c0t2d0s7                   0     No        c0t3d0s7                   0     No        c0t4d0s7                   0     No
+#+
+# metadb -i+
flags           first blk       block count
a m pc luo        16              1034            /dev/dsk/c0t0d0s3
a    pc luo        1050            1034            /dev/dsk/c0t0d0s3
a    pc luo        2084            1034            /dev/dsk/c0t0d0s3
Running command "format" will give output :
Current partition table (original):
Total disk cylinders available: 2733 2 (reserved cylinders)+
Part      Tag    Flag     Cylinders        Size            Blocks
+0 root wm 0 - 134 100.20MB (135/0/0) 205200+
+1 swap wu 135 - 307 128.40MB (173/0/0) 262960+
+2 backup wm 0 - 2732 1.98GB (2733/0/0) 4154160+
+3 unassigned wm 308 - 310 2.23MB (3/0/0) 4560+
+4 var wm 311 - 580 200.39MB (270/0/0) 410400+
+5 unassigned wm 581 - 985 300.59MB (405/0/0) 615600+
+6 usr wm 986 - 2333 1000.47MB (1348/0/0) 2048960+
+7 home wm 2334 - 2732 296.13MB (399/0/0) 606480+
We try to clone disk using "ufsdump" command. The backup disk (cot1d0) capacity is like the capacity of original disk (c0t0d0) --> 2.1GB.
Here is all the command that we have run:
+# mount /dev/dsk/c0t1d0s0 /clone-root+
+# cd /clone-root+
+# ufsdump 0cf - /dev/rdsk/c0t0d0s0|ufsrestore -rf -+
+# mount /dev/dsk/c0t1d0s3 /clone-s3+
+# cd ../clone-s3+
+# ufsdump 0cf - /dev/rdsk/c0t0d0s3|ufsrestore -rf - --> this command gave output "it is not ufsdump format"+
# mount /dev/dsk/c0t1d0s4 /clone-var
# cd ../clone-var
# ufsdump 0cf - /dev/rdsk/c0t0d0s4|ufsrestore -rf -
+# mount /dev/dsk/c0t1d0s5 /clone-opt+
+# cd ../clone-opt+
+# ufsdump 0cf - /dev/rdsk/c0t0d0s5|ufsrestore -rf -+
+# mount /dev/dsk/c0t1d0s6 /clone-usr+
+# cd ../clone-usr+
+# ufsdump 0cf - /dev/rdsk/c0t0d0s6|ufsrestore -rf -+
+# mount /dev/dsk/c0t1d0s7 /clone-export+
+# cd ../clone-export+
+# ufsdump 0cf - /dev/rdsk/c0t0d0s7|ufsrestore -rf+ -
All dumping process were successfully done EXCEPT at /dev/rdsk/c0t0d0s3. It said that this partition is not in ufsdump format. I think because this partition is used as metadevice database.
All dumping process were successfully done EXCEPT at /dev/rdsk/c0t0d0s3. It said that this partition is not in ufsdump format. I think because this partition is used as metadevice database.
Afte install bootblk to c0t1d0s0, we tried to boot system using clone disk result (c0t1d0). We unplugged the original disk, and put the clone disk into target 0 slot (c0t0d0).
While booting, it said that the meta database was broken and need to be repaired. we delete the metadb and re-create again --> # metadb -a -c3 -f /dev/dsk/c0t0d0s3.
then REBOOT.
But, after it, system won`t boot. the said that
*"/dev/md/rdsk/d100" = no such device or address*
*/dev/md/rdsk/d100 /dev/dsk/c0t0d0s5 /dev/dsk/c0t0d0s7 = can`t check file system*
please run fsck manually"
we have run command "fsck". but the problem still there. System can`t boot. :-(
But, while we put the original disk back, the system can run normally.
Is there any steps that we are missing? Kindly need your help, please....we stuck. No idea...please response
Thank you for any help and suggestion
regarads,
ferianto

Sorry to hear.
Other possibilities...
Data Rescue...
http://www.prosofteng.com/products/data_rescue.php
(Has a Free Demo to see if it could or not, but you'll need another drive to recover to).
rccharles on file recovery...
"Stellar Phoenix Macintosh - Mac data recovery software, recovers data from damaged, deleted, or corrupted volumes and even from initialized disks."
They have a trial version, so I guess you can see if your data can be recovered...
http://www.stellarinfo.com/mac-data-recovery.htm
FileSalvage is an extremely powerful Macintosh application for exploring and recovering deleted files from a drive or volume. FileSalvage is designed to restore files that have:
    * been accidentally deleted.
    * become unreadable due to media faults.
    * been stored on a drive before it was re-initialized/formatted.
http://subrosasoft.com/OSXSoftware/index.php?main_page=product_info&products_id= 1

I have 2 macbooks each with an account for me and one for my wife. I use one Macbook logged in with my account and my wife uses the other Macbook only loged in on her account. We both make regular time-machine back-ups each on a separate external disk

I have 2 Macbooks each with an account for me and one for my wife. I use one Macbook logged in with my account and my wife uses the other Macbook only logged in on her account. We both make regular time-machine back-ups each on a separate external disk. Is it possible to update her account on my macbook using her external disk without overwriting my stuff on the same Macbook and vice versa?

Time Machine does not do individual accounts. It records the complete drive. So if you were to use her TM backup on your Mac it would make your Mac just like hers. Both yours and her account on your MAC.
Just copy the missing files over from her Mac to yours. If there are differennt programs on each then they would need to be installed on both.

One USB port does not work with external Disk or USB key

Hello,
Back to my iMAC there is 3 USB port. The second one - in the middle - does not work pluging an external Disk, an USB key or an iPOD nano. However it works well connecting a Wacom tablet.
Is there an explanation to this behaviour ?
More the keyboard is plugded on USB port 1 and the mouse on the keyboard. Time to time - especially at reboot - I have to unplugged the mouse and plugged again it in order it works.
In advance thank you for your answers
Regards

Since it does not work for three different devices, I will assume it is not something simple like a faulty USB cable. Since it does work for one device, I will also assume that the port is (at least partially) working.
As a test to narrow down the cause, I would try restarting from your Mac OS X installation disc (insert disc and restart with the C key held down).
At the first Installer screen (after language selection), go up the menu bar. Under Utilities, select to run Disk Utility. Now, connect the USB drive into that center port. Does it appear in the Disk Utility sidebar?
Please post back the result...

Can I back up iphone to an external disk?

can I back up iphone to an external disk?

You can move your /Home/Music/iTunes folder to the external drive. Then hold down the OPTION key while starting iTunes. In the file dialog locate the /Music/iTunes/ folder on the external drive and click on the Open button. iTunes will now use the library on the external drive. When you sync your data and backups will now be saved on the external drive.

How to connect an external disk to time capsule?

Hi,
I've just connected my new external disk 2TB to the time capsule device. However, it doesn't show in the disk tab in Airport express. Yes, of course the disk is on, it's hfs+journaled formatted and works fine when connected directly to my usb port on my MacBook Pro.
Any suggestion, please?
Thanks.

Unless this is a really new feature, Airport Express doesn't support external USB disks; only USB printers.
The Wireless-N Time Capsules and Airport Extremes support external USB disks.

I want to set up the Time Machine and I would love to use the Time Capsule but since I already have a wireless router I need suggestions on what other external disks Apple could recommend to use with the Time Machine and how to configure that disk

I want to set up the Time Machine and I would love to use the Time
Capsule but since I already have a wireless router I need suggestions on
what other
external disks Apple could recommend to use with the Time Machine and
how to configure that disk.
A complication that I need to resolve is the fact that I am using Vmware
Fusion to be able to use Windows on my Mac. Now it seems that Time
Machine is not backing up my files
on that virtual Windows without additional configuration and my question
is whether you can advise me here or whether this is only a matter for
the Fusion virtual machine.

If you want to use Time Capsule you can.. you simply bridge it and plug it into the existing router.. wireless can be either turned off or used to reinforce the existing wireless.. eg use 5ghz in the TC which is much faster than your 2.4ghz.
You can also use a NAS.. many brands available but the top brands are synology, qnap and netgear readynas series. These will all do Time Machine backups although how well always depends on Apple sticking to a standard. There are cheaper ones.. I bought a single disk zyxel which was rebadged and sold through my local supermarket. It actually works very well for TM at least on Snow Leopard. Major changes were made in Lion and again ML so do not instantly think it will work on later versions. I haven't tried it yet with those versions.
Any external drive can be plugged into the mac. Use the one with the fastest connection or cheapest price according to your budget. USB2 drives are cheap and plentiful. But no where near as fast as USB3 or FW800. So just pick whichever suits the ports on your Mac. Interesting Apple finally moved to USB3 on their latest computers.
TM should exclude the VM partition file.. it is useless backing it up from Mac OS side.. and will slow TM as it needs to backup that partition everyday for no purpose.. TM cannot see the files inside it to backup just the changes.
You need to backup windows from windows. Use MSbackup to external drive.. if you have pro or ultimate versions you can backup to network drive. But MSbackup is a dog.. at least until the latest version it cannot restore the partition without first loading windows. There are about a zillion backup software versions for windows.. look up reviews and buy one which works for you. I use a free one Macrium Reflect which does full disk backups and is easy to restore.. to do incremental backups though you have to pay for it.

Can't open iPhoto after copying to external disk

After i had made a copy to the external disk, i can launch the iphoto. Everytime, i clicked on iphoto library, it showed
'Angs-MacBook-Air:iPhoto Library_old.photolibrar hooitang$' in terminal. Also, when i click iphote in dock, it showed ' You can't open
the application "iPhoto" because it is not supported on this type of Mac.
Please advise what to do now.

Rather than copy and paste drag it over
and very important
what format is the EHD?
The best way to move the library to a properly formatted EHX is
Moving the iPhoto library is safe and simple - quit iPhoto and drag the iPhoto library intact as a single entity to the external drive - depress the option key and launch iPhoto using the "select library" option to point to the new location on the external drive - fully test it and then trash the old library on the internal drive (test one more time prior to emptying the trash)
And be sure that the External drive is formatted Mac OS extended (journaled) (iPhoto does not work with drives with other formats) and that it is always available prior to launching iPhoto
And backup soon and often - having your iPhoto library on an external drive is not a backup and if you are using Time Machine you need to check and be sure that TM is backing up your external drive
LN

Can i put my itunes library on an external disk?

hi,
i want to store my itunes library on and external disk but want it to work just like it does on the internal hdd. is that possible?
i tried to store it on a home server. and while i could play the contents of the library. the art-work and so-forth did not appear in the itune client.
please advise.

Yes, it's most certainly possible. The easiest way is to just drag the entire iTunes folder (the entire folder, not just the iTunes Music folder) to your desired location. Then hold down the Shift key while launching iTunes. You'll be given a dialog box where you can select the iTunes library you want to use. Navigate to and select the iTunes folder in it's new location. Note that this procedure assumes that all of your content is contained in the iTunes Media/Music folder. If things are scattered around your drive, moving them becomes much more complex.
Once you get things moved successfully, be sure not to launch iTunes with the external drive not mounted or iTunes will default back to the internal drive. If it does, though, just mount the external drive and launch iTunes with the Shift key again.
Regards.

How do I link an iTunes Library (on an external disk) ?

Hi all,
I'd like to keep my huge collection on external drives.
I was able to link the correct playlist (on external disk which was cloned from my previous Mac).
What exactly should I link?
For example: in Aperture, I just select the Aperture Library on my external drive and all my pics are available (obviously if the drive is plugged in).
In iTunes I don't see this option... The only thing I see is the iTunes Media Folder Location option... which I don't really understand why is not there on my external hard drive.
Any idea?
Thanks

If you have the whole iTunes library (media files, library files, genius, artwork, etc.) on an external drive hold down the option key while starting iTunes, navigate to the external, and it will use the iTunes folder on the external. This is all too often confused with just keeping media (but not the library files or artwork) on an external which is the setting you see in Preferences.

Just installed 10.6.3 on MacBook Pro and external disks cannot be seen by OS. Help

i installed 10.6.3 on my 17" MacBook Pro (updating from 10.5.8). All my external disk drives which had all been visible to the system and accessible before the update no longer were visible to the OS. Not in the sidebar and not in the disk utility. After checking all connections etc. many reboots, resetting the pram i still am unable to see or access these disks.
From there i updated to 10.6.8 but exactly the same results. i'm not sure where to go from here. i have 4 externals on 2 different usb routers and 1 external on a firewire router.
I'm considering removing the routers and trying each drive separately and directly connected to the laptop.
And of course, i'm short of time.
Anyone with similar problems and/or solutions?

You mean USB HUBs, correct? Not routers.
Yes remove the HUBs and try the drives connected directly to the computer.

"Volume not found" I have 3 iphoto_libraries stored in a external disk, while the actual files are in other external disk. Ive moved together iphotolibraries and files but: HOW CAN I TELL THE LIBRARIES WHERE TO FIND THEM NOW?

I have three iphoto_libraries stored in a external disk PASSPORT (one for each trip imovie Im making -Ive managed this way the libraries so to not confuse the trips) while the actual files are in OTHER external disk LACIE. And everything was fine: imovie find each library, could work with it, or iphoto could edit the files.
But one day everything crashed at the same time: i opened iphoto to find 3 different scenarios:
1) iphoto_library GREECE was there, but not the albums i prepared. no events. when double click in any of them: "Volume not found"
2) iphoto_library ITALY was there, and the albums i prepared too, but empty.
in both cases I can only see the photos in 'photos' because 'events' shows some events with photo preview and some with no preview, just some kind of preset clipart palm tree, but if i enter the event, photos are there but again: when double click in any item: "Volume not found"
3) iphoto_library ISRAEL was there, the albums too, when double click in any of them: all OK
The 3 libraries was managed the same way. Meaning: Ive imported photos to iphoto from external disk LACIE in a iphotolibrary stored in another external disk PASSPORT. Also: I don't have unchecked the option "copy to file" or something like that. photos where moved, not copied. Also i have all the movie_libraries in the PASSPORT as well. What happened??
Solution? Nothing yet. Ive moved now all the photo folders from LACIE together in PASSPORT with the iphotolibraries but problem persist:
HOW CAN I TELL THE LIBRARIES WHERE TO LOOK FOR THE VOLUMES NOW?
"Volumes" are the original files aren't them?
Please help. this is so annoying to try and find in the forum, to tricky to explain
I have a Macbook pro retina Yosemite 10.10.1 / iphoto 9.6 (910-29)/ iMovie 10.0.6
THANK YOU
Vicky

The 3 libraries was managed the same way. Meaning: Ive imported photos to iphoto from external disk LACIE in a iphotolibrary stored in another external disk PASSPORT.
This is not clear, especially when you say
I don't have unchecked the option "copy to file" or something like that. photos where moved, not copied.
Especially as the message you're getting is typical of a library where the ' option "copy to file" or something like that' is unchecked.
So it's a simple question:
Are you these Managed or Referenced Libraries?
A Managed Library, is the default setting, and iPhoto copies files into the iPhoto Library when Importing. The files are then stored in the Library package
A Referenced Library is when iPhoto is NOT copying the files into the iPhoto Library when importing because you made a change at iPhoto -> Preferences -> Advanced. (You unchecked the option to copy files into the Library on import) The files are then stored where ever you put them and not in the Library package. In this scenario you are responsible for the File Management.

How can I use two different PC's with Lr5.5 to manage and process my photos stored on external disk, and exchange the analysis between these two computers?

I operate on two computers and would like to be able download Lr jobs done on my laptop, to my stationary PC, also used to process other images, all stored on the same external disk.
In other words I want to process may photos on two PCs and to to have access to all analyses from one or even better from both computers independently.
Samek.

You need to put your photos AND LR catalog file (.lrcat) on the external drive, and make sure the external drive has the same device name or drive letter on both computers.
I have been using LR this way for several years and it works fine as long as you MAKE A BACKUP of the external disk somewhere, in case you lose or drop/damage the external drive which is easy to do. Nightly, or sometimes more than once a day, I copy all changes from my working external disk to another similar-sized external disk. I have lost a disk, once, and dropped/destroyed a disk, once, but recovery is as easy as using what used to be the backup disk as the primary one, and buying a new disk for the backup device. It does take some hours to copy the 1TB of photos to the new backup disk, but once that is done, it usually only takes a few 10s of minutes or less to copy what is new or changed each night.

External disk Unreadable

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