34GB File Vault sparse image not mounting

Hi there,
I have an ibook G4, OS X 10.4.11, Capacity 55.77 GB, Available 5.53 GB
I've had my home folder (34.69 GB) encrypted with File Vault for about 5 years. A few weeks ago I had to hard shut down when Safari crashed. Upon restart I got the scary "unable to login as this user at this time". I was able to create a new user account. I scoured the internet and followed apple instructions: http://support.apple.com/kb/HT2631
I can see my old sparse image file. But when I get to step 18 above, I get the message: The following disk images failed to mount, lockedouthome.sparseimage, reason--> input/output error
When I try to back up the sparse image to an external hard drive, I get the message: The finder cannot complete the operation because some data in "lockedouthome.sparseimage" could not be read or written.
Is there anything else I can possibly do before I trash the home folder and start over? I have backups of my itunes and iphoto library, but never got around to backing up the Word documents and web archives that are career related. Please help! I hate to trash it, when I can see the file sitting right there with all my stuff looking like it's still inside (34 GB).
Thanks,
unaware filevaulter

I completely understand the money issue myself.
But DW is your best cheapest hope of any recovery, in fact I do not even buy a new Mac/OS until DW supports it, that's no guarantee it wiil work though.
Could you please explain what you mean by "if you don't have an external drive to boot from" in regards to using the Disk Warrior CD or DVD?
I don't know how you were backing up, nor whether these drives are bootable, but in this day & age it pays to have a bootable Clone of your drive, DW & other Apps can be run from say an external drive to repair your Internal drive... since you cannot repair the HD you're booted from, you need either another boot drive, or a CD/DVD to boot from.
I use FW drives on most of my Networks and use Tri-Backup...
http://www.tri-edre.com/english/index.html
Can't say enough good about Tri-Backup.
Get carbon copy cloner to make an exact copy of your old HD to the New one...
http://www.bombich.com/software/ccc.html
Or SuperDuper...
http://www.shirt-pocket.com/SuperDuper/
Or the most expensive one & my favorite, Tri-Backup...
http://www.tri-edre.com/english/tribackup.html

Similar Messages

Disk image not mounted

I have had a host of problems since i installed a Time Capsule. The latest is that after reinstalling my system software -- another story -- I have not been able to make back-ups. The message I get is back up failed, disk image not mounted. What is this? On my time capsule there is a disk image of my hard drive on a dog eared page called a sparse bundle. I'm sure this is easy, but I'm stumped.

huk730,
Welcome to the Apple discussion!
Consider the following causes of that error message. Also bear in mind that when you reinstall the system software, Time Machine cannot continue using the same backups as before and will start a fresh set of backups. [http://support.apple.com/kb/TS1338]
*_"The Backup Disk Image Could Not Be Mounted" (Console - “Failed to mount disk image”)_*
First, it is important to distinguish this error message from another, similar Time Machine error that states “The backup volume could not be mounted”. This is important as the causes and cures for these two errors can be very different.
Consider each topic below separately. When one option does not resolve your issue, then move on the next one.
*Unmount the Backup Disk Image* (TC)
If, for some reason, you have manually mounted the Time Machine backup disk image (sparsebundle), or Time Machine failed to eject it after the previous backup, subsequent backups may fail. (Console - “Failed to mount disk image”… “Backup failed with error: 21”)
Eject the backup disk image (white drive icon) by either clicking the little Eject icon to the right of the disk image in the Finders’ Sidebar, or Ctrl-Click the drive icon on the desktop and select “Eject” from the contextual menu. Now try backing up again or launching Time Machine to view previous backups.
*“Disconnect All Users…”:*
If your Time Machine backup drive (“Backup of Users Computer”) is mounted on your desktop or in the Sidebar of the Finder window. then Time Machine may think the drive is already in use. Alternatively, if the Time Capsule hard disk has been recently accessed by a Windows machine, it may not have fully relinquished control. Do the following:
Open Airport Utility and select the Time Capsule on the left.
Click “Manual Setup”.
Select “Disks” at top of window.
Click “Disconnect All Users…” at bottom of window.
Close the Airport Utility.
Now try Backing up again.
“I got it resolved. Apparently it had to do with one of the files being open on the disk from the drive. I had browsed the disk with one of my windows boxes here and it must have left one of the folders "open". Anyway, I rebooted the TC and we are good to go now.”
*Proper Computer Name* #
Make sure your computer has a proper name. Go to System Preferences --> Sharing. Time Machine needs to differentiate your computer from others on your network (i.e. "Bills MacBook" or "Office iMac"). If the "Computer Name" field is blank, create a name. Realize that if this step is necessary, you will likely have to start the Time Machine backup process over again and do another full initial backup.
According to this article, [http://support.apple.com/kb/TS1760], Time Machine may experience problems if your computer name includes certain characters. Make sure the computer name only includes ASCII characters from the following set.
(0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ)
Once a change in the computer name occurs, you should stop and restart Sharing on the affected computer. Uncheck and then recheck Sharing in the Services list on the left.
Let us know if any of the above was helpful.
Cheers!
Message was edited by: Glenn Carter

Disk images not mounting

Here's the question: how come .dmg files downloaded from apple.com (amongst other places) won't mount?
Here's the detail: This has to be a FAQ going by Google searches. I've downloaded the Mac Firefox DMG 3 times, and the Safari DMG from apple.com once, and when I try to mount the images I get a range of different cryptic errors, including "codec overrun", "not recognized", "error -some number or other", and so on. Sometimes, I get two different errors for the Safari image.
Existing disk images on my hard drive mount fine. Today my hard disk has been playing up, with files being corrupted, keychain being broken, prefs disappearing, and so on. I boot from the Tiger DVD, run Disk Utility and Repair Disk, tells me no repairs carried out as all hunky dory. Use Disk Utility on the HD to check permissions, those are fine. Run Onyx maintenance, all is fine. I've not changed the router prefs at all, so it's not that corrupting the downloads.
All was fine until mid-afternoon today, when a number of apps (Firefox, Safari, Dreamweaver) started behaving strangely and the machine kept on hanging. On restart a number of taskbar icons became question marks, so something's being corrupted. Some downloaded PDFs became corrupted.
What I might try to do is download DMGs from my work PC, put them on a stick, and try to mount them. If the problem recurs then that would eliminate download errors.
My conclusion is that either the OS has become damaged, or the HD is physically fubar'd, or at least has some physical errors on it somewhere which DU isn't picking up. If the latter I'm screwed as I'm out of warranty and I might as well chuck the machine in the bin, so let's hope it's the OS. I could reinstall the OS (again) but a) that would be highly time-consuming as I'd also have to reinstall a shedload of apps, prefs, configs, etc, and b) if there's a physical HD error it'll do zero.
I've already spent some fruitless and frustrating hours today on diagnosis, and having done tech supp in my career I know what to look for, so this is my last throw of the dice to try to get some kind person to suggest a) a diagnosis, and b) suggestions for a cure.
Without a cure I might as well take a clawhammer to the thing and get a Linux laptop. Ok, PCs are far inferior to Macs with crappy hardware, but at least you don't lose over a thousand quid when your PC laptop fails.
Cheers
Fred Riley
Web Developer, Nottingham, UK

I was able to get a partial fix of this problem by following instructions that I found on the All Experts web site:
Regarding disk images and mounting media:
delete the following files and folders:
* /System/Library/Extensions.kextcache (file)
* /System/Library/Extensions.mkext (file)
* /System/Library/Caches/com.apple.kernelcaches (folder)
(Note that after deleting these files you need to reboot your Mac for the fix to take effect.)
All of these files and folders were date 18 Aug 2009, which is in around the timeframe when I installed the last security update for OS10.4 ppc.
I say the solution is a partial fix, because it did allow me to open some, but not all .dmg files (the problematic ones are showing a checksum error). Now I find that iTunes will not operate (yeah I know that should be another thread), but I have not used it in several weeks, prior to the last OS update.

Hard Drive and Disk Image not mounting

Hey everyone,
I'm running a G5 Dual 2Ghz. with OSX 10.5.8 I'm having problems with a back up hard drive. It is an external Western Digital My Book 1.5TB SATA drive. After using it for a few months, it suddenly did not mount anymore.
*1) It also would not appear in Disk Utility.*
a) Disk Warrior couldn't find the drive (I think because it's formatted with FAT32)
*2) I then took the drive out of the enclosure and put it in the spare bay in the G5.*
a) It didn't mount
b) It did show up in Disk Utility
c) In Disk Utility it wouldn't give me the option to Repair Disk Permissions or Repair Disk
d) In Disk Utility is says under Partition Scheme: Unformatted
e) In Disk Utility I don't have the option to mount/eject only gives me the "info" option
f) Tech Tool did find the drive and it passed all tests
g) Disk Warrior still did not find the drive
h) TestDisk finds the drive, but does not find any partitions
*3) I then created a disk image of the drive in Disk Utility onto an external hard drive. The image comes back at 320GB, which seems to be about right I think.*
a) The disk image would not mount with Disk Image Mounter. It would say there is an Unrecognized File System
b) In Disk Utility - I don't have the option to Repair Disk Permissions
c) In Disk Utility - When trying to Repair Disk - I get the error: Repairing Disk failed with error Unrecognized FileSystem
d) In Disk Utility - If I click Open - The Log file says:
+Attach Image+
Initializing...
Verifying...
Finishing...
+Image of "disk0.dmg" attached successfully+
+Mount of "disk0.dmg" succeeded+
-But it is no where to be found
e) Disk Warrior can not find the Disk Image
f) I took the new external drive with the Disk Image to 3 other mac computers but the image would not mount
*4. Other things I've tried when opening the Disk Image for the new external drive.*
a) in Terminal - hdiutil attach -nomount "volumes/untitled/disk0.dmg"
b) in Terminal - sudo hdiutil attach -nomount "volumes/untitled/disk0.dmg"
c) Deleting files System/Library/Extensions.kextcache
System/Library/Caches/com.apple.kernalcaches
ALL UNSUCCESSFUL
I'm running very low on ideas. I know I could just erase the drive and reformat it, but the files on it are very important and must be recovered.
Any help or suggestions would be very helpful. I will not have time until after the weekend to try more things. Thanks in advance if you do not hear back from me until after this weekend.

Yes, it will. But if DU says the disk is unformatted then it is also not accessible. If you have files you don't wish to lose then you will need to try recovery software:
Basics of File Recovery
General File Recovery
If you stop using the drive it's possible to recover deleted files that have not been overwritten by using recovery software such as Data Rescue II, File Salvage or TechTool Pro. Each of the preceding come on bootable CDs to enable usage without risk of writing more data to the hard drive.
The longer the hard drive remains in use and data are written to it, the greater the risk your deleted files will be overwritten.
Also visit The XLab FAQs and read the FAQ on Data Recovery.

Problem Moving Large Files to Sparse Image

Hi All,
So I'm playing around with sparse images (new to mac so trying to learn lots). I occasionally share an external terabyte usb HDD with workmates and want to use a password protected image to save my files on it. I will be using about 200gb of space. A few good people here put me onto sparse images as opposed to dmg images which is great however I've run into a couple of problems...
Firstly when I try to copy a folder of work (I do photography) to the sparse image that is more than about 4Gb I get a message saying it cannot copy as there isn't enough space on the image to do so. I'm assuming this is something due to the image creating free space on the fly so therefore am wondering if there is a way of increasing this??
Secondly, and more alarming for me is that after copying about 50Gb of work I discovered that whilst the files seem to be the correct size in the image they cannot be previewed or opened. The error says it may be damaged or to use a file format preview recognises. I tried copying a few movies too and found that vlc cannot play them too.
Hoping someone may be able to point me in the right direction with this.
As a side note....I am quite fastidious about backing up so no work going into this image will be done so without a backup saved elsewhere.
Cheers
Matt

HI,
"*4Gb I get a message saying it cannot copy as there isn't enough space"*
Make sure have enough free space on your startup disk to do this.
Right or control click the MacintoshHD icon. Click Get Info. In the Get Info window you will see Capacity and Available. Make sure you always have a minimum of 10% to 15% free disk space at all times.
This is the best paragraph I've read on these forums...
*"I am quite fastidious about backing up so no work going into this image will be done so without a backup saved elsewhere"*
Backing up your important documents can save many a headache later on. Good on you!
Try repairing disk permissions and see if that helps.
Quit any open applications/programs. Launch Disk Utility. (Applications/Utilities) Select MacintoshHD in the panel on the left, select the FirstAid tab. Click: Repair Disk Permissions. When it's finished from the Menu Bar, Quit Disk Utility and restart your Mac. If you see a long list of "messages" in the permissions window, it's ok. That can be ignored. As long as you see, "Permissions Repair Complete" when it's finished... you're done. Quit Disk Utility and *restart your Mac.*
Carolyn

External HD image not mounted

I recently disconnected my ext HD (unknowingly) improperly. Now the HD image does not mount and the ext HD lights are blinking. System profile: Firewire reads it as "unknown device". It is a SmartDisk CrossFire product-company just sold and I cannot find manufacturer support.
Am I SOL or is there a way to recover data?
Tried suggestions of unplugging and restarting - not successful.
Thanks for any help.
iMac 500 MHz (summer of 2000) 512 MB Mac OS X (10.4.1)

"Can you further explain your second idea."
As already suggested, if you have access to another Mac with a FireWire port, you could determine if the problem is with your iMac's FireWire bus, or the drive itself. When you purchased the drive, was it and is it still formatted as a FAT-32 or NTFS volume for PCs, or did you reformat it as a Mac OS Extended volume? If it's still formatted for use with PCs, that provides more options for you, in terms of being able to test it on a PC or Mac.
If the drive has a badly corrupted directory, transferring it to another enclosure won't solve the problem or recover your files. For data recovery, I'd recommend Prosoft Engineering's "Data Rescue." If the problem is strictly with the enclosure's bridge board, the only definitive way to confirm that would be to install another hard drive in it, and see if it's recognized by Disk Utility or mounts on the desktop. If a different hard drive is recognized, then the enclosure and its bridge board are good, and the hard drive itself is probably at fault. If a different hard drive produces the same results as the original drive that shipped in the enclosure, then the enclosure's bridge board may be damaged.
You could open the external case and transfer the hard drive to a new case. You need to know whether your existing FireWire drive has a 3.5" drive or a 2.5" laptop drive, as the data connection is different. Once you confirm what you have, you should check out Other World Computing and other online sources for a compatible FireWire enclosure. For a standard 3.5" ATA hard drive, OWC carries several external FireWire enclosures, such as this one by Macally, and their own line - the Neptune and the Mercury Elite. I'd be willing to spend a little more and go with the Mercury Elite, because I think it has a better design.

Question on PDF files with linked images (not embedded) between Reader and Illustrator

I run into situations when I get customer PDFs that need to be edited. When they load in Acrobat Reader it works fine. However if I load it into Illustrator it asks me to point it to the linked file. The question is how does Acrobat Reader open a PDF file and show a linked file when it is not embedded? Why can't Illustrator do the same thing?
This is more of a technical question, but any information would be helpful. Thanks.

For linked images, your PDF file contains a thumbnail image along with the reference or address of the actual image. Reader will display this thumbnail. Now, wanting to edit the PDF in Illustrator, it wants to enable you working on the actual image. Hence it asks you to point to the linked file.
HTH

.dmg file w./0bytes not mounting

If a .dmg file downloads with 0 bytes and doesn't automatically get mounted to the desktop, is there something wrong with the file? When I try opening the file manually it tells me the image couldn't be opened because it is not recognized.
file download: http://support.apple.com/kb/DL907

The file downloads fine, download is working.

Backup disk and Disk Images not mounting

*Intial Disk Utility problem:* Recently my trusty 6 year old PowerBook G4 died from hard-drive failure, with most of my data backed up on external drives. Before migrating data over to my new iMac, I performed "First Aid" in "Disk Utility" on the external backup drive. One of the drives (500GB iomega drive) that backed up my PowerBook and my PC had 5 partitions (4 were FAT32, and 1 was NTFS), somehow got erased in Disk Utility. Even though I was just verifying one of the partitions the whole drive was cleared and renamed: disk2s4 (28kb) and disk2s10 (372.5GB). This didn't take much time, so I knew all the data hadn't been cleared, and checked the Security Options for Erase, and its set to "Don't Erase Data."
*Disk Warrior attempt:* At this point, having a sorta wrecked backup drive that still apparently had data, I bought Disk Warrior and gave that a try. It read the drive the first time, but couldn't recover any of the directory information. Hoping to not overwrite anything, at that point, I didn't proceed with the "rebuild" option. Now when I try Disk Warrior, it just says:
Directory Cannot be rebuilt due to disk hardware failure (-50,447)
- This disk appears to be a MacOS standard sik
- This disk does not appear on the desktop
- This disk is 372.49 GB in size
- Disk ID: disk2s10
- File system: HFS (standard) +even though most of the drives had been fat32+
Now Disk Warrior doesn't even give the option to scan the drive.
*Disk Imaging attempt:* Disk Warrior is claiming a hardware problem (which isn't really the case), so I tried making a disk image in Disk Utility of both disk2s10 and disk2s4. I tried opening disk2s10.dmg in Finder and in Disk Utility, and get the message: "No mountable file systems." In the past when confronted with unmountable disk images, I've used VLC media player. So, I pull up VLC read disk2s10.dmg and music starts playing!!! At first I freak out, then I realize that its the first song listed in my iTunes library -- the data is there, can be retrieved, but I'm not sure how to get it!
*Next attempts:* the only other thing I can think of is to try daemon tools or something on my PC, or bring the drives into the the school IT guys.
Please let me know what you think would work that I haven't already tried. Though I have redundancy in the backups, I haven't been able to recover some data for my PhD thesis due in a month, and therefore haven't given up on reviving this disk yet.

I've downloaded the DataRescue and FileSalvage trials, and am currently scanning with DataRescue which will take another few hours. Thanks for those recommendations, its so useful to have a trial scan before buying.
*General Question:* I noticed through these various attempts that reformatting extra drives in the current version of Disk Utility has become a little more dangerous than before. For example, I was reformatting a spare disk from FAT32 to HFS+ and the drive became unmountable. This never happened to me in earlier versions of OSX, and now it seems to happen every time, and partly why my partitions got all screwy. Any thoughts?

Swf file causing rollover images not to work

I've inserted a Flash file into my webpage in Dreamweaver and it broke all my rollover images. Even deleting the swf file and reinserting the rollover images doesn't work. I've read a few threads on this but can't quite find exactly what I'm looking for. I think it's something in the <head> code but I'm not sure. Any help would be much appreciated!
<head>
<title>Matt Relstab | Still Photography | Moving Pictures | Sound Design</title>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<script type="text/javascript">

<meta name="keywords" content="natural light photography, media producer boston, online media, photographs, sound design, audio for film, web video, video production,
boston production, portable recorder, digital photography, digital media production">
</script>
<style type="text/css">

</style>
<script src="Scripts/AC_RunActiveContent.js" type="text/javascript"></script>
</head>

For starters, look at the first line on your errant page, it starts out:
<meta name="keywords" content="audio reel, foley artist, sound effects mixer, audio mixer
boston, sound engineer, post production">
<html>
Thats not good. If you look at your other pages, the <html> tag is first, the way it should be.
Switch them around, then try this, remove your <html> tag (the very first tag is where is should be) and replace it with this
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
See what that does for you.
Gary
On Edit: I just noticed that you have
<meta name="keywords" content="natural light photography, media producer boston,
online media, photographs, sound design, audio for film, web video, video production,
boston production, portable recorder, digital photography, digital media production">
inside your js for the rollovers...Move them out of the script.
GAry

Deleted files in "File Panel". Images not showing up

Hello all.
I deleted some old pages and I renamed some pages, all in the
"file panel". Now my images are not showing up in preview. Example,
my background and borders are not showing up, and they are still in
my root folder. What did i do wrong? (fyi: When I was in DW last
night all my images showed up with no problems)
CS3, Mac
Thanks

quote:
Originally posted by:
Newsgroup User
Thanks you've even helped me with that one. I was going threw
the same thing with images. That solved that issue thanks
the images do still show in dreamweaver design view?
but not in f12 preview in browser?
are the paths to them site root relative? do they start with
a leading
/slash?
if yes- go into dw preferences->preview in browser and put
a checkmark in
"use temp files for preview"
Alan
Adobe Community Expert, dreamweaver
http://www.adobe.com/communities/experts/

Since upgrading from Lion to Mountain Lion, when I login 1 of 2 disk images I have set to open on login does not mount.

Since upgrading from Lion to Mountain Lion, when I login 1 of 2 disk images I have set to open on login does not mount. It worked under Lion. Stickies opens just fine. The disk images are sparse disk bundles. Are there any suggested remedies? I have already tried repairing permissions. One interesting thing is that previously in LIon, the disk images were just sparse images, not sparse bundles. I switched to bundles after reading that Time Machine backups of sparse bundles would not copy the entire image, only the changed parts. The sprase images are for sharing of photo and iTUnes libraries among multiple family member on the same computer.

If it is working as expected, what do you need with the old backup?
If you want to be able to go back to where you were prior to an upgrade, isolate that backup and don't use it again. As far as Time Machine can tell, the whole drive changed.
The link I posted contains probably everything that anybody knows about Time Machine and how to manipulate it to work as you would like as opposed to how it was designed to work. There are FAQs to continue a backup as opposed to starting fresh, but I wouldn't recommend it for the reasons above. Pondini probably doesn't, either.
If you are going to do a wholesale upgrade of the OS, I would create a bootable clone using something like Carbon Copy Cloner or Super Duper. A bootable clone on an external drive can have you back up and running instantly if the upgrade fails in any way. If the upgrade goes fine, store it away in case you find the current system isn't to your liking.

Downloaded new Parrallels, dmg file will not mount?

I am trying to upgrade my parrallels, since they came out with a newer version. I have the dmg file but it will not mount, it says "not recognized"
Do I have to remove the older version first?
anyone know what is wrong?
Also, what kind of a fire wire do you need to connect two Macs together so that you can migrate the software over?
Do you need a fire wire with the same ends?

The original DMG posted on the Parallels site would not mount. If you download it now it will work ok.
As far as firewire you use a firewire 400 or 800 depending on your old machine. It is probably best that you use one with the same ends. Less of a chance of data failure.

Several questions regarding File Vault

Hi!
I have several questions regarding File Vault - right now I'm using Mac OS 10.4.8
1.: The battery lock of my iBook is defect thus it happens from time to time that while transporting it the battery drops out while the laptop is sleeping. What happens with the File Vault-disk image?
2.: I want to (have to ) set up my Intel iMac again. The installer-CD I have will bring it back to 10.4.6
AFAIK the data format used for File Vault since 10.4.7 is version 2. What happens if I encrypt my stuff now (10.4.8 - thus version 2), back it up to my backup disc, install a new system (10.4.6 - therefore version 1) and want to access my data via Migration Manager (don't want to use archive and install)?
3.: How do I actually do a backup of my data while the system is running? The backup should be encrypted as well.
I use the demo-version of SuperDuper for backing up my system because with it I can ensure that I have a complete bootable backup of my running system.
Thanks for your answers in advance
ibook g4 12" 1.2 GHz 768 MB RAM / Intel iMac Core 2 Duo 17" 2.0 GHz 2GB RAM Mac OS X (10.4.8)

Parker,
You said:1. If it did, Apple would not use FileVault, as everyones computer will have a battery problem once in their life, and Apple would lose buisness from angry people who lost all of their data.I have seen enough reports of data loss with FileVault that I feel compelled to dispute your statement.
In Data corruption and loss: causes and avoidance, Dr. Smoke writes...If your data-security needs demand FileVault, you should backup your encrypted Home folder regularly, preferably daily. Like any hard drive or disk image, a Home folder protected by FileVault — an encrypted, sparse disk image — does not respond well to the causes of data corruption...Loss of power definitely is a cause of data corruption.
For Niels....,
An Unencrypted Look at FileVault, by François Joseph de Kermadec is an excellent discussion of the features, pitfalls, and cautions regarding Filevault.
Although the article discusses Panther and is dated 12/19/2003, the concepts as they apply Tiger have not changed.
The cautions and warnings are prominent in any of the Apple Knowledge Base articles referring to the use of FileVault. If a user is unfamiliar with any aspect of FileVault, it should not in my opinion be activated.
As good as FileVault is in protecting your sensitive data, it also presents the danger of locking up your files in an irretrievable ball of one's and zero's. Backups are critical. You must ensure that you have a comprehensive backup plan. Backup and Recovery, by Dr. Smoke is a fine example of what you need to consider.
;~)

A sparse image or sparse bundle question in relation to a NAS

Hi all,
I want to create a sparse image or bundle on my Synology DS713+ NAS to store my iPhoto and Aperture libraries.
The reason for a sparse image or bundle lies in the fact that both iPhoto and Aperture very much like a solid Mac Journal formatted drive to operate on.
Because I use an iMac and a MacBookPro I want these libraries available for both computers, and while they reside on a NAS they are 'automatically' backed up, and acessible to both computers.
I've tried storing the iPhoto library on the NAS directly (not Mac formatted but some Linux format, nót FAT32 anyway), but this was performing very poor (copying the library took hours and hours), and I've read on many NAS and Synology forums that this is not the way to go. The best solution I've read from these forums is to create a Sparse Image or Bundle on the NAS to benefit fully form an iPhoto or Aperture Library.
Now I have created a Sparse Image, and mounted it, and moving (copying) an iPhoto Library to it is done in a snap (amazing).
But having the Sparse Image mounted on my iMac, I cannot acess it on my MacBookPro unless I first umount it on the iMac, and then mount it on the MacBook.
Is there a way that such a Sparse Image can be mounted on more than one computer at the same time. In my case, mounted on both the iMac and the MacBook?
Or must it specifically be a Sparse Bundle to accomplish this, or maybe some Terminal wizzardry to get this done?

I'm a little confused here, but what you did answer did help quite a bit. Thanks for that. Anyway, I'm having problems adding to the array. It keeps telling me 'cannot find symbol - method add (double). I'm assuming that this method should be defined in the AuditRecord class, which has been given to me but there seems to exist no method in that class called 'add'. I suppose I could make one, but my professor said that we shouldn't be modifying the AuditRecord class at all, which leads me to believe I'm on the wrong track again. Anyway, here's my updated code in the hopes that it's a simple mistake that I'm making once again:
public class AuditTrail
    private ArrayList<AuditRecord> auditTrail;
    //ArrayList<AuditRecord> auditTrail = new ArrayList<AuditRecord>();
    //private double amount;
public AuditTrail()
   auditTrail = new ArrayList<AuditRecord>();
* Add a record
public boolean add(double amount)
       if (amount > 0)
       //create auditrecord and add to audit trail (array list)
       AuditRecord auditTrail = new AuditRecord(amount);
       //auditTrail.AuditRecord(amount);
       auditTrail.add(amount);
       System.out.println("Amount of "+amount+" added.");
       return true;// similar behavior to a collection
    else
        System.out.println("Invalid deposit amount.");
        return false;
}

34GB File Vault sparse image not mounting

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