Disk Utility Restore Error

Hello All,
The Boot Camp Assistant told me that I had to reformat my hard drive as Mac OS Extended (Journaled) so I:
-Cloned the drive with Carbon Copy Cloner,
-Booted from my external hard drive, and
-Erased my internal disk (Using Disk Utility).
Now, when I try to restore (using Disk Utility) from my external to my internal drive, I get one of two errors:
-RESTORE FAILURE: Lost connection to helper tool.
-RESTORE FAILURE: Could not establish connection with helper tool.
Does anyone have any idea what's going on? I've gone through this whole thing once before for Boot Camp, but the last time didn't yield any crazy errors...

It had occurred to me to try that but the Boot Camp Assistant told me that it couldn't partition my drive because some files could not be moved. If I just clone it back, won't things be just the way they were before? That's just a guess of course, my whole train of thought could be off

Similar Messages

Disk Utility Restoring Error - Device not Configured

Hi all,
A mate has given me a USB flash drive that doesn't work. I tried to create an backup image using Resuce Pro from SanDisk and it came up with a NDIF file. What I then did was partioned an external hard drive and restore using the image as source and the new partition as destination. 2 seconds later an error comes up saying restore error, could not validate source - device not configured. Am I the only one that has this problem or have I done anything wrong during the process?
Cheers,
Keefe

NDIF is an obsolete format. You'd probably have to convert it to some kind of DMG first (Images > Convert.)

Disk Utility Restore - Why error -34 ?

I cloned my 700 G3 iBook's 20GB hard drive to a 30GB ext. HD with Disk Utility>Restore before sending it for repair. Now that I have gotten it back I want to restore the data to the computer's HD. I'm getting error -34 (disk full).
So what is the nature of my problem? Must the destination disk be at least as big as the source disk? (Because it is copying the entire 30GB size.) Or must I empty (erase, reformat) the destination disk? (Because it is adding the data to what is already there.)
Thanks

Michael:
You were right. Thanks. The data would have been added to what was already there.
While I had made back-up clones before, this was the first time I needed to put it back into the computer's hard drive.

Disk Utility: Restore no longer creates bootable images?

So I have a new hard drive for my macbook, and followed the procedure I used last time of using disk utility restore to write the current hard drive image to the new disk, with the new disk in a USB enclosure.
I have done this before, it creates a bootable copy on the new disk, swap the disks away I go.
This time however the new disk is not bootable. When starting it gets to the grey screen with the rotating white pips then dumps back to a black screen with error messages (like its trying to boot of the network).
Swapping back to the old disk boots just fine, so its a problem with the image written to the new disk by disk utility restore not being bootable.
Is this a known issue? I searched the forum with no answers, and am frustrated that its now working as I have run the image twice now at about 5 hours a go for 100GB of data so I am sure its not the copy. Straight after the copy the original disk has about 10 more files than the new disk that's just been imaged, has their been some update to disk utility in the OS X patches that means it no longer copies some key files?
Note that partition on new disk is GUID as it should be, and I don't want to re-install anything from the install media I want to use make disk utility work as designed.

I found two references that may help:
A) At http://everythingapple.blogspot.com/2007/11/use-powerpc-mac-to-create-bootable.h tml it says "PowerPC Macs use the Apple Partition Map, but this poses no problem for Intel Macs, even though Intel Macs use the GUID Partition Table. The reverse is not true however. PowerPC Macs cannot boot disks with a GUID Partition Table."
1. Open up Disk Utility and select your backup drive. Select the "Partition" tab.
2. Go to the "Options" and choose "Apple Partition Map", which is the partition type necessary for PowerPC Macs.
B) Carbon Copy Cloner - Red Dot Warning on main screen: "The target volume will not boot this computer because PowerPC Macintoshes cannot boot from USB devices."
Looks like I'll have to install the 2.5" SATA drive into my PowerPC MacMini to upgrade my system volume from 80gb to 320gb.

How to clone disk (Disk Utility Restore, boot: kernel panic)

Hi, I've tried two times to clone my 120GB system disk (old Core2Duo Mac Mini (macmini2,1)) to a 1TB disk attached via USB cradle. Running Snow Leopard 10.6.8 which long time ago was upgraded from Leopard.
Used the Disk Utility "Restore" for cloning. Both times Disk Utility completed without errors. However when I swap the 1TB from USB cradle into mac mini (to internal SATA), the result of even a "Save Mode" boot attempt with Shift/Mod key held is always a kernel panic: "unable to find driver for this platform: \"ACPI\"
As my goal is to clone the existing system to a larger drive, a new install of OS X on the 1TB drive is out of the question. The original 120GB disk boots without problems. But the cloned attempts do not boot.
Judging from the kernel panic it is as if "Restore" doesn't actually restore, but leaves out files. Thus Disk Utility restore in SL is buggy?
Or is my cloning method wrong? Currently I just drag the 120GB system disk (the live running system) to the Source, then drag the 1TB USB disk to Destination, and allow full erase of destination, and do the priviledge elevation to root i.e. the usual password prompt. Does successful cloning need something extra...?

If I understand correctly, what you're doing is copying your 120 GB drive to the 1 TB drive, then swapping the 1 TB drive into your Mac and trying to boot from it, and it fails.
You're doing it wrong, and that's why it fails. A Finder copy (what you're doing) does not respect permissions or symbolic links, which are required to make the system boot. You need to use something that does respect that.
Get your hands on a copy of SuperDuper http://shirtpocket.com/
(free for basic use, but it's well worth the small fee of $27.95 for full access to all features); and/or
Carbon Copy Cloner http://bombich.com
and use one of those to make a bootable clone of your 120 GB drive, then you can boot from it.

Internal Hard Drive Died - Now replaced - Disk Utility Internal Error

When using the original system disk to install OSX the new hard drive isn't recognised even though I have formatted it for an intel based mac (GUID Partition, Extended Journaled etc) using my imac . When launching Disk Utility from the system disk and trying to erase/partion the drive, I get the following error message "Disk Utility Internal Error - Disk Utility has lost its connection with the Disk Management Tool...". When connected to my imac using a converter it appears on my desktop. Any help would be greatly appreciated. The macbook in question is a 2006 (white). PLEASE HELP.....

Hi - Thanks for your reply. I have tried that but it still doesn't work. I have had a look around online for the past couple of hours and I found a post that said that newer hard drives can't be recognised by an original 10.4 osx system disk. I would need to find a copy of 10.5 to install OSX on a new hard drive. I dont know if that's true because I dont have a copy of 10.5. Any thoughts would be appreciated!

Disk Utility internal error message

I am receiving an error message every time I try to repair permissions on my MB running OS X 10.4:
error:
Disk Utility Internal Error
Disk Utility has lost its connection with the Disk Management Tool and cannot continue. Please quit and re launch Disk Utility.
Tried that several times to no avail. After quittting Disk Utility, system becomes very sluggish and Finder stops responding.
I then booted from the installation CD and ran a Hard Disk integrity check. It checked Ok. Then I tried a permission repair and got the exact same error message quoted above.
Any help?

There was a problem with this a couple of years ago involving iTunes Library Receipt files. See [Mac OS X 10.3: Repair Disk Permissions 'Disk Utility has lost its connection with the Disk Management Tool.|http://docs.info.apple.com/article.html?artnum=303132].
It seems unlikely that would surface now, but the suggested fix is worth trying. The article also mentions looking at Console log. Console is in Applications/Utilities.
Also, see this recent thread in the Panther forum:
http://discussions.apple.com/thread.jspa?threadID=1585878

Disk Utility: Burn error: 0x80020022 The device failed to respond...

I've been working on archiving a ton of video to DVD. I'm using Dual-Layer discs to minimize the amount of physical storage space needed for the finished project. I burned several discs in iDVD in July and regularly received errors. Then the drive suddenly stopped loading any type of media. Anything I inserted would spin briefly and then eject. Repaired permissions and followed steps outlined here and here. Took the Mac back to the store where I bought it (sadly, not an Apple Store - nearest one is 12 hrs away) where naturally it performed flawlessly for the store rep.
So I took it home and resumed burning, now saving as a disc image (ignoring iDVD's warning about the performance of DVDs burned this way) and using Disk Utility, since iDVD didn't seem to be reliable. Burned about 25 discs, error-free, in this fashion, then three days ago, got the error: "Unable to burn “Disc 19.img”. (The device failed to respond properly, unable to recover or retry.)"
Retried the same image, and it worked. Then burned two more in the same fashion with no errors. Today I got the same error again. Logs are identical for each failed burn, except for the time span between certain lines.
Price of DL media being what it is, I'd hate to keep ruining discs if there's something I can do to avoid it. I suppose it could be bad media, but it seems odd that I'd get two bum discs that close together after burning so many without issue. Checked the site and the forums, and there doesn't seem to be any answers. Does anyone have any ideas? (Other than "try a different brand of media." I've got a buttload of these discs and it's too late to return them now.) Even if it just helps determine where the issue lies. Warranty will be up soon, so if it's hardware related, I need to get it taken care of quick.
Media: Philips DVD+R DL 8x
*Drive info:*
HL-DT-ST DVDRW GS21N:
Firmware Revision: SA15
Interconnect: ATAPI
Burn Support: Yes (Apple Shipping Drive)
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -R DL, -RW, +R, +R DL, +RW
Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO
Media: Insert media and refresh to show available burn speeds
DiscUtility.log:
2009-10-03 08:54:01 -0600: Burning Image “Disc 22.img”
2009-10-03 08:55:15 -0600: Image name: “Disc 22.img”
2009-10-03 08:55:15 -0600: Burn disc in: “HL-DT-ST DVDRW GS21N”
2009-10-03 08:55:15 -0600: Erase disc before burning: No
2009-10-03 08:55:15 -0600: Leave disc appendable: No
2009-10-03 08:55:15 -0600: Verify burned data after burning: Yes
2009-10-03 08:55:15 -0600: Eject disc after burning
2009-10-03 08:55:15 -0600:
2009-10-03 08:55:15 -0600: Preparing data for burn
2009-10-03 08:56:30 -0600: Opening session
2009-10-03 08:56:35 -0600: Opening track
2009-10-03 08:56:35 -0600: Writing track
2009-10-03 09:01:37 -0600: Finishing burn
2009-10-03 09:02:37 -0600: Closing session
2009-10-03 09:02:38 -0600: Finishing burn
2009-10-03 09:38:37 -0600: Burn failed
2009-10-03 09:38:37 -0600: The device failed to respond properly, unable to recover or retry.
2009-10-03 09:38:37 -0600: Additional information can be found in the ~/Library/Logs/DiscRecording.log log file.
2009-10-03 09:38:37 -0600: Unable to burn “Disc 22.img”. (The device failed to respond properly, unable to recover or retry.)
DiscRecording.log:
Disk Utility: Burn started, Sat Oct 3 08:55:15 2009
Disk Utility: Burning to DVD+R DL (CMC MAG D03) media with DAO strategy in HL-DT-ST DVDRW GS21N SA15 via ATAPI.
Disk Utility: Requested burn speed was 47x, actual burn speed is 4x.
Disk Utility: Burn failed, Sat Oct 3 09:37:15 2009
Disk Utility: Burn sense: 4/44/90 Hardware Error,
Disk Utility: Burn error: 0x80020022 The device failed to respond properly, unable to recover or retry.
Message was edited by: Weasel42

I have encountered the same problem. I have a Mac Book Pro from 2007, and it has gone through 3 DVD writers so far, all of which have ruined DVD+R DL disks. I have occasionally been able to burn one, but usually during verify, I get this error message:
Communication to the disk drive failed: 0x8002022
And disk utility fails with a "Invalid B-tree node size" error
Oddly, when I try to burn a disk near capacity (6.5Gb or more) it is more likely to fail than if I burn a smaller disk.
I've been using Memorex DVD+R DL disks, but I have used other brands in the past but they have failed, too. Out of about 50 disks so far, I have had success with about 5.

Disk Utility Restore

I copied my macbook pro's hard drive to an external drive using disk utility restore. Is it normal for the copy's overall size to be smaller than the original? I thought it would be the same size? The external had no data on it. The original is 273.54 GB and the copy is 271.45 GB... Problem?

May I try to answer your question. When you copy a disk there are a number of files which are not copied such as Trash, swap files and any temporary files that may have on the old disk will not be copied to the new disk. So while the approximately 2 GB of data might at first glance seem like a lot, it is in fact not really that much. I hope that helps you to understand what is happening there.
|___________________
Allan

Disk Utility Restore Process Input/Output Error

<Image Edited by Host>
My niece's MBP specs above. If I posted a picture of this poor machine, there'd be a lynch mob of passionate Apple fans arrive at my door wanting a public hanging...It's been dropped no less than a dozen times. (The ethernet port is stretched out of shape so badly that a standard plug will no longer fit the port!!!).
Among other physical injuries, the screen won't present an image (just flickers white lines on black background, hinge has partially detatched, suspect the ribbon that transmits the display signal has been compromised). A visit to the Apple store tells us (by plugging into a cinema display via TB) that the hard drive is still in tact and data is salvageable. Keyboard and trackpad both work fine (surprisingly).
Long story short, she's acquired a new MBA, been read the riot act about looking after it, and I have the unenviable task of salvaging her data, approx 275Gig.
My objective is to obtain:
1. A full copy of the data (existing file structures) - Complete
2. A bootable disk image of the MBP - Incomplete and troublesome
I have at my disposal:
Mid 2011 27' iMac (Intel i7) on Mav
MBPr13 (third host if needed) on Mav
A home ethernet network with enterprise grade switching
A Lacie 5BigPro 10TB NAS
A couple of 1 & 2 TB Toshiba external drives, and
Enough network adapters, USB cables and thunderbolt cables to suffice. Admin priviliges all round. All disk permissions repaired.
Current connection config is the MBP thunderbolted to the iMac. I can use TDM (if I need to interface with the MBP using the iMac display) or can boot in Target Disk Mode if I want to see the MBP disk image on the iMac.
Regarding Objective2: A bootable disk image of the MBP, I first tried to use the Restore function in Disk Utility, but that only works when booting the host in Recovery mode, whcih doesn't support TDM, so I'm flying blind...
Next try, I booted the MBP in Target Disk Mode, which allowed me to use the Restore process from the iMac's Disk Utility, select the MBP HD, and target an external drive (one of the Toshiba's) plugged in to the iMac via USB.
I've now tried this Restore 3 times, each time getting the following I/O error (at about 45 munites in to a projected 4 hour process):
Any thoughts on root cause?
And (given my screen/display limitations) am I missing a far simpler option?
Cheers, Sla

If that were the case you would not get in/out errors. These errors occur because the drive is no longer able to transfer data which is a hardware failure.
If you want to post an image to the forum then you need to open the message editor and click on the Camera icon you will find in the editor's toolbar. Then select the image you wish to post and click on the Insert button.
You can try running the Apple Hardware Test to see if it reveals anything.
Using Apple Hardware Test
Intel-based Macs- Using Apple Hardware Test

Disk Utility - Restoring a previous image

Since I first bought my Mac Mini (February of this year) I've been using the disk utility to make occasional backups (disk images) of my partitions, in case I ever need to restore a whole partition (or create a clone of an existing partition - for example, so that I could test some new software that might cause problems). I've never actually needed to restore a partition (or produce a clone from one of the backup images) until today. However, when I first bought my Mac I did test this feature and it seemed to work.
A few days ago I realised that I'd soon need to clone a partition so I backed up my Mac HFS partition which is about 90GB in size (my internal disk being 500GB). I then used Coriolis iPartition to create a new, empty Mac HFS partition of the same size, then tried to use Apple's Disk Utility to restore the newly created disk image. However when I came to try the restore, I got an error saying that the image would first need to be "image scanned" before being usable. I then tried an old image that I created when I first bought the Mac and currently, that one seems to be restoring.
AFAIK I've used the same method to create both images so why did the old one work when the new one didn't??
Message was edited by: johne53

Hmmm.... I've just realised that none of the images I've created recently will verify properly. They all get to the end of the first stage (block checksum of partition #1) and then fail with "internal error". The only one which passes the verification process is the very first one which I created a long time ago. That one seems to complete two stages of block verifications (for 2 partitions) then one "file checksum".
If I try to select a disk image and use "Open Disk Image" (from the right-click menu) I get an error saying "Unable to attach [image-name].dmg. No mountable file systems." This happens with every disk image I've created, apart from the very first one.

Disk Utility "restore" fails with "no such file or directory"

Some time back, perhaps a LONG time ago, I successfully used Disk Utility's "restore" function to "clone" my Mac OS X partition onto an external disk, before I upgraded the OS on my internal drive.
This weekend I tried to do it again, and failed on every attempt.
My first attempt was on my MacBook. At very end (the progress "bar" was all blue) it died saying that there was an error (2), "no such file or directory". I think the external drive probably isn't GUID, which would make it non-bootable, but I'd still think "restore" itself should work.
Okay, let's try my Power Mac G5, which is where it worked several releases ago. Same thing.
Okay, one more try... Booted into safe mode (in case background activity accounts for the missing file/directory), did the restore again, failed again.
I realize that SuperDuper or Carbon Copy Cloner or other tools may be "better", but since this worked once it seems like it still should.
Any ideas?
Doug

Did you:
A. Repair the hard drive and permissions prior to cloning?
B. Erase the destination drive before cloning?
Repairing the Hard Drive and Permissions
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Installer menu (Utilities menu for Tiger.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now shutdown the computer for a couple of minutes and then restart normally.
If DU reports errors it cannot fix, then you will need Disk Warrior (4.0 for Tiger) and/or TechTool Pro (4.5.2 for Tiger) to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
How to Clone Using Restore Option of Disk Utility
1. Open Disk Utility from the Utilities folder.
2. Select the backup or destination volume from the left side list.
3. Click on the Erase tab in the DU main window. Set the format type to Mac OS Extended (journaled, if available) and click on the Erase button. This step can be skipped if the destination has already been freshly erased.
4. Click on the Restore tab in the DU main window.
5. Select the backup or destination volume from the left side list and drag it to the Destination entry field.
6. Select the startup or source volume from the left side list and drag it to the Source entry field.
7. Double-check you got it right, then click on the Restore button.
8. Select the destination drive on the Desktop and press COMMAND-I to open the Get Info window. At the bottom in the Ownership and Permissions section be sure the box labeled "Ignore Permissions on this Volume" is unchecked. Verify the settings for Ownership and Permissions as follows: Owner=system with read/write; Group=admin with read/write; Other with read-only. If they are not correct then reset them.
For added precaution you can boot into safe mode before doing the clone.

Use Disk Utility "Restore" to clone system Drive

I have always recommended that everyone use the Restore function under Disk Utility to clone their drive before each update, just incase one needs to quickly fall back to a working release.
Well I decided to test my cloned drive, and to make a long story short, be sure that you boot from a different drive than the one you want to clone. A clone made from the current/active startup drive does NOT boot (well mine would not boot).
So, boot from a backup drive/partition, one that is Panther works best as you do not have to worry about spotlight, or dashboard, or any of the other "cool" Tiger auto running programs getting in the way, then go into Disk Utility, and Restore, and clone your main startup drive. It creates a drive that will actually boot.
Maybe this was obvious to everyone, but I had been making my backup clone drive for the past year right from my main active startup drive. I never received an error that indicated there would be any problem with the cloned drive. Thank goodness that I NEVER had to use the backup.
Now I sleep peacefully at night, knowing I have a bootable replacement startup drive ready to go at a moments notice.
bob

CCC has worked fine with 10.3.x but I have been having some issues getting the backup of 10.4 to be recognized.
I don't know if it is the disk (it's on a partition of a sloooow lacie) or the nature of the clone. In either case, it takes a couple of tries before the drive is found as a boot drive and it is a pain....
After a hugely painful and very, very expensive experience with failed backups (we lost the entire office's electronic records going back for 3 years), I have gotten in the habit of booting off the backups once every few weeks to verify they work.
In the immortal words of journalist and fiction writer Damon Runyon, "Trust, but verify."
Cheers,
x
Do your part in supporting your fellow users. If a response has been Helpful to you or Solved your question, please mark it as such as an aid to other lost souls on the forum.
Also, don't forget to mark the thread Answered when you get enough information to close the thread.

Problems transferring Backups to new External HD using Disk Utility restore

I'm having issues using Disk Utility to transfer my backups to a new disk.
I am transferring data from a 250GB external harddrive to a new completely zero'ed 1TB Iomega external harddrive. Both Harddrives are connected via USB. On my old 250GB HD i have a few folders containing about 100GB of data (raw video footage) that are not in the "Backups.backupdb" folder.
I follow the tutorial in item 18 of the FAQS on this forum exactly (except i didnt check erase destination) but i get an error message each time after about 3 minutes:
"Could not restore - Operation not permitted"
This is what my log says:
2009-12-27 17:12:32 +0000: Restore Disk
2009-12-27 17:12:32 +0000: Source: “Darkers HD”
2009-12-27 17:12:32 +0000: Destination: “Untitled”
2009-12-27 17:12:32 +0000: Erase Destination: No
2009-12-27 17:12:32 +0000:
2009-12-27 17:12:32 +0000: Starting Restore…
2009-12-27 17:12:32 +0000: Validating target...
2009-12-27 17:12:32 +0000: done
2009-12-27 17:12:32 +0000: Validating source...
2009-12-27 17:12:32 +0000: done
2009-12-27 17:12:32 +0000: Validating sizes...
2009-12-27 17:12:32 +0000: done
2009-12-27 17:12:32 +0000: Copying
2009-12-27 17:14:01 +0000: could not copy /Volumes/Untitled/Backups.backupdb/Mac/2009-04-15-054708/Macintosh HD/Applications/Adobe Acrobat 7.0 Professional/Acrobat Distiller 7.0.app/Contents/Frameworks/AdobeACE.framework/AdobeACE; Operation not permitted
2009-12-27 17:14:01 +0000: Bom copy exited with error 1
2009-12-27 17:14:01 +0000:
2009-12-27 17:14:01 +0000: Could not restore - Operation not permitted
2009-12-27 17:14:02 +0000: Could not restore - Operation not permitted
2009-12-27 17:14:02 +0000:
I can see from this that it is having issues with a file in the destination:
/Volumes/Untitled/Backups.backupdb/Mac/2009-04-15-054708/Macintosh HD/Applications/Adobe Acrobat 7.0 Professional/Acrobat Distiller 7.0.app/Contents/Frameworks/AdobeACE.framework/AdobeACE
This file is in the first Backup i ever made and all subsequent backups. So i went and looked at this backup through the time machine application and deleted this file from the backup and all subsequent backups. However when i then did the restore again i got the same error message and when i looked at the log it was identical except it had issues with a different "AdobeACE.framework" file from another Adobe CS3 program. I dont want to go through and delete all these types of CS3 files from my backups for obvious reasons, i would much rather understand what the issue is and know whether there is a way round it.
It may well be simply because i have not checked the "erase destination" box before restoring but somehow i doubt this is the issue as the new 1TB HD has already been "zero'ed" as explained earlier.
Any help would be appreciated guys.

check the box to erase destination. the fact that you zeroed it out makes no difference. this is a known issue and checking that box was recommended for a reason.

Disk utility - restoring a .cdr question

i hate the format of the apple discussion forums now.
not sure if this is the proper place since there is no "community" to discuss Disk Utility and the "restore" function, which is not specific to snow leopard, but since i'm still running 10.6.8, i'll go ahead an post this here.
in the past, i've successfuly restored disk images onto dedicated hard drive partitions. i do this for a variety of reasons, namely to have working backups of certain DVD's, such as my install DVD's when internal super drive stopped functioning.
however, i just tried this following what i think are the proper instructions, but now i can't restore the disk image and can't find the answer anywhere online.
basically:
1) i'm going into disk utility, hooking up an external dvd drive and copying a playable DVD of some live music i purchased
2) i'm choosing "create new image" and under compression, choosing "dvd/cd master"
the problem is that the resulting file comes out as ".cdr" and not .dmg. i haven't tried it using some type of compression, but for some reason Disk Utility won't let me "restore" from a ".cdr" file, only a .dmg or .iso.
i've tried changing the extensions. i've tried converting (within disk utility) the .cdr to .dmg, and i get the same "invalid argument" error as always.
the only thing i haven't done is tried making another .dmg using some type of compression, or read-only, read-write format.
it would seem to me that choosing cd/dvd master is the proper category.
does anyone know why a .cdr will mount, but cannot be used for restore??? and why making a disk image of a disk i own defaults to .cdr and not .dmg?
thanks.
666

Hmmm.... I've just realised that none of the images I've created recently will verify properly. They all get to the end of the first stage (block checksum of partition #1) and then fail with "internal error". The only one which passes the verification process is the very first one which I created a long time ago. That one seems to complete two stages of block verifications (for 2 partitions) then one "file checksum".
If I try to select a disk image and use "Open Disk Image" (from the right-click menu) I get an error saying "Unable to attach [image-name].dmg. No mountable file systems." This happens with every disk image I've created, apart from the very first one.

Disk Utility Restore Error

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