Should i run disk utility check after a restore onto a brand new drive?

My hard drive died on my daughter's macbook, just replaced it and did a restore.
i am wondering if i should do any disk utility check(permissions or repair) on a new hard drive because i have restored a time machine backup onto it.
I say this because any issues on the backup files are now placed onto a new hard drive.

Kappy wrote:
It can't hurt to repair permissions. Most likely you'll get a long stream of stuff most of which is irrelevant and can be ignored. If there are any repair issues this will fix them. Be sure to run DU from the system you just installed. No need to boot from an installer disc.
BTW, did you properly prep the drive? Partitioned GUID, Mac OS Extended, Journaled format, and one pass Zero Data?
I did partitiion the drive guid, os extended, journaled. but i dont remember a choice on the onepass zero data but i assume it happened with the partitioning.
i understand no need to boot from the disc for permission check but if i do a verify or repair of the disk, then dont i have to boot from the install disc?

Similar Messages

IMac OS 10.9.4 software updates apparent cause of Corel Painter X3 crash: I have run Disk Utility - no probs there, reinstalled Painter X3 (after first uninstalling X3). What now?

iMac 10.9.4 software updates last week is apparent cause of my Corel Painter X3 now crashing. I ran Disk Utility check - no probs there. I reinstalled Painter X3 (after first uninstalling X3), still no success. Online Mac support suggest I use MacCleaner - tried at online Mac store & was referred to 0800 tech support for guidance - still waiting for reply.

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Step 1
For this step, the title of the Console window should be All Messages. If it isn't, select
          SYSTEM LOG QUERIES ▹ All Messages
from the log list on the left. If you don't see that list, select
          View ▹ Show Log List
from the menu bar at the top of the screen.
In the top right corner of the Console window, there's a search box labeled Filter. Initially the words "String Matching" are shown in that box. Enter the name of the crashed application or process. For example, if iTunes crashed, you would enter "iTunes" (without the quotes.)
Each message in the log begins with the date and time when it was entered. Select the messages from the time of the last crash, if any. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
☞ The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
☞ Some private information, such as your name, may appear in the log. Anonymize before posting.
Step 2
In the Console window, select
          DIAGNOSTIC AND USAGE INFORMATION ▹ User Diagnostic Reports
(not Diagnostic and Usage Messages) from the log list on the left. There is a disclosure triangle to the left of the list item. If the triangle is pointing to the right, click it so that it points down. You'll see a list of crash reports. The name of each report starts with the name of the process, and ends with ".crash". Select the most recent report related to the process in question. The contents of the report will appear on the right. Use copy and paste to post the entire contents—the text, not a screenshot.
I know the report is long, maybe several hundred lines. Please post all of it anyway.
If you don't see any reports listed, but you know there was a crash, you may have chosen Diagnostic and Usage Messages from the log list. Choose DIAGNOSTIC AND USAGE INFORMATION instead.
In the interest of privacy, I suggest that, before posting, you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if it’s present (it may not be.)
Please don’t post other kinds of diagnostic report—they're very long and rarely helpful.

In the far left hand column, Devices keeps disappearing. I can get it back by downloading iTunes again but disappears again after I run disk utility.

In the far left hand column, Devices keeps disappearing. I can get it back by downloading iTunes again but disappears again after I run disk utility.

With a Device plugged in - place your mouse cursor over DEVICES - you should see 'show' or 'hide'. Click on 'show'.
MJ

Warnings when running disk utility after downloads, etc.

I use Mc Janitor nightly to clear some of the 'stuff" that accumulates with files, etc. but run Disk Utility after downloads and such about once a month. I have done this since 2003 when I had my first e-mac. Only recently have "warnings " appear on the list of repair or varify disk...that says certain items can not be repaired. The techs at the Apple store said to just ignore them, which I have been doing. But the last download, which was a rather large new Security download, came up with something new, both on my computer and my husband's lap top when he downloaded it. These are letters that appear and say ACL found but not expected on Applications/Utilities, on "Applications" and on "Library."
We are just curious about what ACL is (or are) and what it means to have them in our systems.
It does say that the disk is verified when I run that. Everything seems to be working normally.

A few posts below yours is this one:
http://discussions.apple.com/thread.jspa?threadID=2310982&tstart=0
New Permissions messages after Security Update/more curious than concerned

Need to run disk utility on iMac G4 with OSX 10.3.9/Hardware disk 10.2.7

I have an iMac G4 currently running with OS X 10.3.9, which was installed on it after it crashed a few years ago. I don't have any retail disks that match OS X 10.3.9, but I have the original manufacturer's hardware disk that came with the computer, which contains Mac OS version 10.2.7.
My question: In order to run disk utility and repair errors on this computer, do I need to purchase a retail version of the OS X 10.3 disk, or is there some way to run disk utility without the proper OSX disk? I read about checking for possible file system issues using fsck with OS X 10.3 or earlier—is fsck a viable option for me?
My computer is not having any substantial problems, but I want to avoid any by running Disk Utility now ...
Thanks in advance for any and all advice!

Welcome To  Discussions poptartsheart!
"...OS X 10.3.9, which was installed on it..."
How was it installed, and by whom?
You should have been provided a set of the Full Retail Version, of the Panther Install CDs, at that time.
"I read about checking for possible file system issues using fsck with OS X 10.3 or earlier—is fsck a viable option for me?"
You can run fsck, as instructed in this KB Article Resolve startup issues and perform disk maintenance with Disk Utility and fsck, but you really need to have a set of the Panther 10.3.x Full Retail discs.
If you know what to look for, a Full Retail Version, of the Panther Install CDs, can be purchased, sometimes inexpensively, at some online Apple retailers, Amazon, eBay, FastMac, HardCore Mac, AllMac, etc.
ali b

URGENT!!!!- INTEL MAC "INVALID SIBLING DISK" error when run disk utility

I am very upset, I ran my verify disk permissions, everything fine, repair disk permissions, everything fine, do t periodically just to mae sure all my stuff is in order,,,, then I decided to run te VERIFY DISK, because do not do it as much and want to mae sure my macbook pro is running fine, and I get:
Verifying volume “minimal minimal”
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Invalid sibling link
The volume minimal minimal needs to be repaired.
Error: The underlying task reported failure on exit
1 HFS volume checked
Volume needs repair
!!!!!!!!!!!!!!! ***?!!!!!!!!!!!!!!!!! there is no way of repairing the disk, and when I search for possible solutons it says I need to run it from the original osx installer disk, and even when it does not necessarily repir this error. besides the fact that the original cd is in atlanta and I am currently in barcelona, some say that I would need to reformat my drive and either way this might not solve the problem. I HAVE WAY TOO MUCH IMPORTANT INFORMATION on my macbook pro to reformat, and i do not have the money to buy an external hardrive, I A VERY UPSET, A BRAND NEW COMPUTER, LESS THAN TWO MONTHS OLD, AND ALREADY I HAVE THESE KIND OF PROBLEMS WITH IT, WHERE IS MY SUPPORT?! please tell me, what do i do? I expect a decent, viable slution to the problem. I need my computer ad the information in it, I work from it and also use it to produce music. why would I have this kind of problem, when I search for answers, everything relates to external hardrives, ..... this is my internal hard drive that I am talking about--- WHAT DO I DO?!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Perhaps, since you are under warranty, they may have a boot disk to attempt to run disk utility and see if the problem can be repaired before resorting to reformatting. Disk error may occur because of a number of issues (installed software, crashes, shutdowns, physical movement of the drive while disks spinning, etc.)
In addition you may want to boot in the single user mode to access the FSCK command as follows: The following is from the Apple support site
Mac OS X: How to Start up in Single-User or Verbose Mode
You may use a key combination when starting up the computer to enter single-user mode or verbose mode, either of which can be used for troubleshooting and in software development. This document applies to Mac OS X and Mac OS X Server versions 10.0 and later.
Steps to Enter Single-User or Verbose Mode
1. Shut down the computer if it is on.
2. Press the power button to start the computer.
3. Immediately press and hold the Command (Apple) key and one of the following:
the "s" key for single-user mode.
the "v" key for verbose mode.
4. To exit single-user mode type: reboot
5. Press Return.
You have successfully entered single-user or verbose mode when you see white text appear on the screen.
Then you may try to repair as follows using the FSCK
fsck is a command-line utility that may be able to verify and repair a disk. If you can successfully start up in Safe Mode or use Disk Utility while started up from a disc, you don't need to use fsck. However, here are some situations in which fsck may be necessary.
Your Mac OS X disc isn't available.
Your optical drive isn't available.
You can't start with a Safe Boot.
Tip: If you use a Mac OS X Extended (Journaled) formatted volume, such as with Mac OS X 10.3 or later, you probably won't need to use fsck. If you do use it for any reason, please be aware that benign error messages can appear.
If you're not sure how your volume is formatted and you can't start up from your Mac OS X volume to find out, type the following command in a command-line interface and then press Return: diskutil info /
If you see "File System: Journaled HFS+" returned, you have a Journaled volume.
To use fsck, you must run it from the command line. Unlike using your mouse to open an application to do something, you'll need to type a text command at the prompt (#) to tell fsck what to do. The Terminal application (/Applications/Utilities) and single-user mode are two examples of command-line interfaces in which you can type such commands. To use fsck:
Start up your computer in single-user mode to reach the command line.
Note: If necessary, perform a forced restart as described in the Emergency Troubleshooting Handbook that came with your computer. On desktop computers, you can do this by pressing the reset/interrupt button (if there is one) or holding down the power button for several seconds. On portable computers, simultaneously press the Command-Control-power keys. If your portable computer doesn't restart with this method, you may need to reset the Power Manager.
At the command-line prompt, type /sbin/fsck -fy
Press Return. fsck will go through five "phases" and then return information about your disk's use and fragmentation. Once it finishes, it'll display this message if no issue is found:
** The volume (nameofvolume) appears to be OK
If fsck found issues and has altered, repaired, or fixed anything, it will display this message:
*** FILE SYSTEM WAS MODIFIED ***
Important: If this message appears, repeat the fsck command you typed in step 2 until fsck tells you that your volume appears to be OK (first-pass repairs may uncover additional issues, so this is a normal thing to do).
When fsck reports that your volume is OK, type reboot at the prompt and then press Return.
Your computer should start up normally and allow you to log in.
About live verification in Mac OS X 10.4.3 or later
In Mac OS X 10.4.3 or later, you can verify your Mac OS X volume while started from it. This is known as live verification, and can be used in three different ways.
Option 1: Verify your disk using Disk Utility while started from the startup disk. To find out how to do this, see this article. Please note that live verification does not involve any disk repair, so if verification finds something that should be repaired, start up from your Mac OS X Install disc and use Disk Utility as described above in "Try Disk Utility."
Option 2 (advanced): Use the command line and the command-line utility, diskutil.
Start up your computer and log in as an administrator.
Open Terminal (/Applications/Utilities).
At the prompt, type the following command and then press Return:
diskutil verify /
Note: Don't use this method to check non-startup volumes.
You should see messages such as the following during the disk check:
Could not unmount disk for verification, attempting live verify
Started verify/repair on volume disk0s3 Macintosh HD
Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Macintosh HD appears to be OK.
Mounting Disk
Verify/repair finished on volume disk0s3 Macintosh HD
Option 3 (advanced): Use the command line and the fsck_hfs -l command.
Start up your computer and log in as an administrator.
Open Terminal (/Applications/Utilities).
At the prompt, type the following command and then press Return to determine your filesytem ID:
df -hl
Look for some lines of text that look like this:
Filesystem Size Used Avail Capacity Mounted on
/dev/disk0s3 37G 20G 17G 55% /
/dev/disk0s5 37G 37G 641M 98% /Volumes/Storage
Make a note of the first "disk" name that appears after /dev/, such as "disk0s3." This is your filesystem ID for your startup volume.
At the prompt, type the following command and then press Return:
df -hl
Then type the following command, where "disk0s3" is your filesystem ID you noted in step 4, then press Return:
sudo fsck_hfs -l /dev/disk0s3
When prompted, enter your admin password, then press Return to begin the verification.
You should see messages like these during the disk check:
** /dev/rdisk0s3 (NO WRITE)
** Root file system
** Checking HFS Plus volume.
** Checking Extents Overflow file.
** Checking Catalog file.
** Checking multi-linked files.
** Checking Catalog hierarchy.
** Checking Extended Attributes file.
** Checking volume bitmap.
** Checking volume information.
** The volume Macintosh HD appears to be OK.
Additional Information
If you're interested in UNIX-style command-line syntax, here's a look at how a couple of flags used in our instruction can influence fsck:
The -y flag: Tells fsck that you want to answer "yes" to all questions about fixing, repairing, or salvaging information. This is the optimal approach, as answering "no" to any question causes fsck to stop. You cannot determine that all necessary repairs have been made until fsck completes and gives its final report.
The -f flag: Forces fsck to check "clean" filesystems when preening.
Macbook Pro 17" 7200 HD 1GB Powerbook G4 (15 inch FW 800) Mac OS X (10.4.6)
Macbook Pro 17" 7200 HD 1GB Powerbook G4 (15 inch FW 800) Mac OS X (10.4.6)
Macbook Pro 17" 7200 HD 1GB Powerbook G4 (15 inch FW 800) Mac OS X (10.4.6)

Disk Utility crashes after Leopard upgrade

I have a problem with Disk Utility crashing (error message is the generic "application unexpectedly quit")on launch after upgrading from Tiger to Leopard. I bought the family pack upgrade and had no problem upgrading my G4 mini. However, my Intel mini 1.33GHz, seems to have gotten spooked. For the most part the pgrade was fine but somehow I lost Disk Utility. Has this been seen before? What might I try? Incidentally, the mini has 2Gigs of RAM and plenty of free disk space. The problem occurs in all accounts. Oh, I forgot to mention that I also upgraded to the latest version of Leopard (without checking whether disk utility worked after to install from the disk - so technically, this could be an combo upgrade issue? Having said that, I did exactly the same with the G4 mini and had no issues.
Any thoughts?
Thanks much!
Andrew

aspalten wrote:
I have a problem with Disk Utility crashing (error message is the generic "application unexpectedly quit")on launch after upgrading from Tiger to Leopard. I bought the family pack upgrade and had no problem upgrading my G4 mini. However, my Intel mini 1.33GHz, seems to have gotten spooked. For the most part the pgrade was fine but somehow I lost Disk Utility. Has this been seen before? What might I try? Incidentally, the mini has 2Gigs of RAM and plenty of free disk space. The problem occurs in all accounts. Oh, I forgot to mention that I also upgraded to the latest version of Leopard (without checking whether disk utility worked after to install from the disk - so technically, this could be an combo upgrade issue? Having said that, I did exactly the same with the G4 mini and had no issues.
Any thoughts?
Thanks much!
Andrew
Boot from the Leopard DVD - hold down "C" key with disk already in place - and after the language screen, in the menu top left, select Utilities and run the DU from there. Repair HD and permissions.
If you did a "merge" install from Tiger (default) then you may have brought some things along that Leopard does not like.
Did you have any "haxies" or other old 3rd party apps installed in Tiger? Most of them won't work with Leopard and need to be replaced or removed.

Can one PPC Mac run Disk Utility for another's HD?

I have a PPC PowerBook that needs help. The Admin users are getting corrupted for some reason. I can still use other Users in Safe Mode.
I have another good PPC G3 desktop. Both running 10.5.8.
I can mount the bad HD on the good Mac's desktop but I can't run Disk Utility for it.
I've mounted with Ethernet and USB. Do I need Firewire? Do I need do try to use Target Mode?
Basically, I'm trying to use the good Mac as a startup disk for the bad one, I think.
Easy way? Thanks! JP
ps: My hunch is Firewire. I don't have any so I'm going to buy a cable soon. Unless someone here stops me! : )

Yes, you need Target Mode Firewire on both, a FW cable, then Disk Utility should be fine from one to the other.
Target mode...
http://support.apple.com/kb/HT1661
Sometimes Laptops need to have the FW cable unplugged & replugged after they'e in t mode to have it finally show up.

Error messages from running Disk Utility

I just ran Disk Utility on my iBook, because it's been behaving erratically of late (e.g., no Low Battery message after a recent battery replacement; and the entire computer sporadically shutting down for no apparent reason, both before and after the recent battery replacement).
The Disk Permissions all tested OK. However, the Verify Disk test resulted in the following error messages:
Volume Bit Map needs minor repair
Invalid volume free block count ... (It should be 7168572 instead of 7168577)",2)
The volume iBook HD needs to be repaired.
Error: The underlying task reported failure on exit.
One iBook user (not sure how much experience & expertise) told me the hard drive needs to be replaced. Given that this computer has been in continuous use for over 5 years now, maybe he's right.
Is there a repair that will fix these problems? ... and if so, how? ... what do I need to do? Or, is it time to replace the hard drive?
We're very happy with this computer and would continue using it for several years more if these problems can be fixed without too much inconvenience or expense.
Thanks,

Insert the Mac OS X install disc.
Restart the computer while holding the C key.
When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, you must select your language first.)
Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.
Click the First Aid tab.
Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
Select your Mac OS X volume.
Click Repair. Disk Utility checks and repairs the disk.

Need to run Disk Utility from OSX Disk to fix my hard drive.. help!

I have a newish early 2010 Macbook Pro. The standard 10.6 DVD will NOT boot my computer and yet I need to boot to DVD to use Disk Utility..
I'm nowhere near my restore disk so using that is not an option. Is there anything I can do to boot to "single user" mode and run Disk Utility so it can repair my HD?
Thanks,
Ricardo

Without your discs you're really out of luck. The 10.6 SL DVD contains too early a version to boot your computer. You would need a retail disc with a version of SL later than the one that came installed on it. If it came with 10.6.3 or earlier then the latest retail copies of SL should be 10.6.4 and would boot the computer.
Meanwhile if the computer is functional download and install AppleJack - CNet Downloads or MacUpdate. Read the documentation then run the utility.
If your computer is not functional then you can try this:
Boot into single-user mode. After startup is completed you will be in command line mode and should see a prompt with a cursor positioned after it. At the prompt enter the following then press RETURN:
/sbin/fsck -fy
If you receive a message that says "*** FILE SYSTEM WAS MODIFIED ***" then re-run the command until you receive a message that says "** The volume (nameofvolume) appears to be OK." If you re-run the command more than seven times and do not get the OK message, then the drive cannot be repaired this way.
If you were successful then enter:
reboot
and press RETURN to restart the computer.

[10.3] Is it necessary to run Disk Utility as a preventive measure

I have here a small Mac environment of about 50 Mac's all running 10.3.9
A certain user now says that I should run Disk Utility regularly on all machine's since it gives a performance boost and fixes errors.
I think that as long as a user doesn't display any weird errors, the disk utility should stay where it is.
Does anybody have any good or bad experiences with this?

1149/3595
Hi Guru Evi,
The only two things that are required for a healthy Mac OS X are:
- Backup
- Enough free hard drive space on the boot volume (at least 10 or 15%)
Then some further precaution, safe, quick and easy:
- Run Disk Utility (from the Utilities folder) "Repair Permissions" feature, after using an Apple installer or Software Update.
- Manually run the nightly automatic maintenance: Once a month, open Terminal and paste this command:
sudo periodic daily weekly monthly
If you have more time, another safe and good precaution:
- Before any important software update, upgrade or reinstallation, or say twice a year,
run Disk Utility (from the Mac OS X install DVD or CD) "Repair Disk" feature.
Rerun it if errors found, again and again until it finds all was clear.
Good or bad experiences:
Using Disk Utility is completely harmless, you can do it as often as you wish (although it would be just useless of course).
Good luck!
Axl

Cannot run Disk Utility, use terminal, or boot from CD, all HDs locked

I have a Mac Pro with 4 internal drives and 3 of them suddenly locked themselves. I can't run Disk Utility -- I get "underlying task reported failure on exit."
I can't boot from Disk Warrior CD. I hold down the C key til the Apple logo appears, and then the computer just restarts into my regular system on my hard drive.
I can run some apps from my startup drive, (obviously I can get on the internet). I downloaded Drive Genius but it will not install.
I cannot use the terminal to try any of those fancy tricks I read about here.
Here's what I get when I try Terminal:
login: PAM Error (line 396): System error
login: Could not determine audit condition
[Process completed]
And after that, I cannot type in the Terminal window.
Man, this is crazy. 2 of my other internal drives have backup systems on them, but they will not show up as choices in the startup disk section of my system preferences - cuz they are locked.
Any suggestions? I'm about to install a new drive and try and clone my working system on it and put Disk Warrior on it.

DJWillis wrote:
Wait, can I use Terminal from another computer in target mode?
yes, but do you mean you can boot it in target mode but not from a DVD? this is very strange. try booting fro a DVD in a different way. reboot and hold "option" at the chime. this should boot you into startup disk manager. normally you can insert the DVd at the point and choose to boot from it.

Running Disk Utility

My computer is running slow so I activated Disk Utility. I get the message "Disk Utility has lost connection to Disk Management Tool and cannot continue. Please quit and relaunch Disk Utility" repeatedly. Whenever I relaunch the same message comes up about halfway through running permissions. Is ther a way to not lose or check the connection?

This has to do with a problem with the latest update and Panther and iTunes.
Tip offered by Kappy and others in the 10.3& earlier Forum;
1) Move iTunes onto the Desktop.
2) Run Disk Utility
3) Go to HD>Library>Receipts and trash all iTunes .pkg files EXCEPT for iTunesX.pkg and iTunesPhoneDriver.pkg
4) empty Trash.
5) move iTune from Desktop back to 'Applications'.
Hey presto. you should now be able to repair permissions again.
Offered by Bee;
Kappy, et all . . .
This was posted earlier today . . .
I'll have to get the author's name, sorry don't have it now.
It seems that it may not necessary to pull iTunes out of the App folder:
Did you recently update your iTunes?
If so, that seems to have caused a bit of a problem with Panther.
If that is the case,
Go to HD>Library>Receipts and trash all ITunes .pkg files
EXCEPT iTunesX.pkg and iTunesPhoneDriver.pkg. Then see if you can repair permissions.
Be very careful here, be sure to leave the last two there!
Cheers!
DALE

Running Disk Utility off External Hard drive

To run "repair disk" in disk utility on my internal hard drive I'm supposed to insert my Install DVD, restart my mac and run disk utility - however running this program off the disk is much slower than running it off my 800firewire external hard drive. I've tried a few different ways of going about this:
1) Partitioning my hard drive in two (both HFS+) with more than enough room for the DVD, I've tried both making a Disk Image of the Install DVD and dragging it into the source field in the "restore" tab and dragged my Install partition into the destination field, after that was complete, I restarted my computer while holding the "alt" key I wasn't even offered the option to boot to my external hard drive
2) I've also tried after partitioning the external drive, in the restore tab just dragging the Install DVD (not the disk image) from the left of the disk utility window into the "source field" and again the partition into the destination field, and when restarting both with the "alt" key and by going to system preferences -> start up disk and choosing my external drive to boot from, I was still unable to boot off my drive.
Please let me know if anyone has any suggestions! This would be such a big help for me since I'm constantly helping people with diagnostic issues with their macs and this would save me so much time. Thanks in advance
George

I'm not sure why you can't make a bootable copy of the installer DVD using Disk Utility but as Niel suggests, it is much better to install the OS on a partition on the external drive using the DVD & then use that instead of a 'clone' of the DVD as a boot source to run utilities. There are several reasons for this:
1. You can update the installed version of the OS on the external to take advantage of any improvements, including to Disk Utility, that may be released in the future.
2. The version of Snow Leopard that runs from the DVD is a special one that among other things is optimized for read-only media. For instance, it doesn't write log files to the startup disk since it doesn't expect that to be possible.
3. You can include other utilities on the external & easily customize it to your liking. For instance, configure it for automatic login to an admin user account, drop Disk Utility into that account's login items & it will automatically launch at the end of the boot process. You can do the same with shell scripts or Applescript applications for just about as much automation as your scripting skills & imagination can dream up.
However, one thing to keep in mind: since a HD is not read-only but a DVD is, you can never be as certain that your external is as reliable as the DVD, since it is possible for something to change or corrupt files on the HD but short of physical damage the DVD is immutable.

Network Installer: Can't run Disk Utility

Hi, all.
Just created a net install image. SIU's log did not report anything out of the ordinary, however for some reason I can't run Disk Utility, and I need to as the automated installation options frequently don't work.
I select Disk Utility from the Utilities menu and nothing happens.
I run the Terminal and try hdiutil and get
dyld: Library not loaded: /usr/lib/libbz2.1.0.dylib
Referenced from: /System/Library/PrivateFrameworks/DiskImages.framework/Versions/A/DiskImages
Reason: image not found
Trace/BPT Trap
Now, if we mount that image on a running Mac we can see the following
bash$ ls -l /usr/lib/libbz*
-rwxr-xr-x 1 root wheel 138436 Nov 1 11:33 /usr/lib/libbz2.1.0.2.dylib
-rwxr-xr-x 1 root wheel 138444 Mar 4 10:19 /usr/lib/libbz2.1.0.3.dylib
lrwxr-xr-x 1 root wheel 18 Nov 29 14:50 /usr/lib/libbz2.1.0.dylib -> libbz2.1.0.3.dylib
lrwxr-xr-x 1 root wheel 18 Nov 29 14:50 /usr/lib/libbz2.dylib -> libbz2.1.0.3.dylib
If we run the same command on the netbooted machine
bash# ls -l /usr/lib/libbz*
-rwxr-xr-x 1 root wheel 138436 Nov 1 11:33 /usr/lib/libbz2.1.0.2.dylib
lrwxr-xr-x 1 root wheel 18 Nov 29 14:50 /usr/lib/libbz2.1.0.dylib -> libbz2.1.0.3.dylib
lrwxr-xr-x 1 root wheel 18 Nov 29 14:50 /usr/lib/libbz2.dylib -> libbz2.1.0.3.dylib
So it looks like libbz2.1.0.dylib is symlink'd to libbz2.1.0.3.dylib, except libbz2.1.0.3.dylib doesn't exist in the netbooted image. But it does exist in the image when it isn't netbooted! Yes, they are the same image!
I also have two "Help" menus, just for kicks.
Does anybody know what's going on? I guess I'll re-create the image, but it'd be nice to understand what's going on and know if it's something I can somehow avoid in the future.
On the lighter side, this is the first time in nearly a year I haven't had to manually insert the CoreVideo.framework to get the image to boot!

Ah, forget what I said about it being the same image. I didn't notice that my chroot hadn't worked when I was checking... I was checking the live system instead. Good thing, too, 'cause that was just TOO weird.
Still doesn't explain why there's a link to a non-existent file. To test I created a symlink for libbz2.1.0.3.dylib which just points at the previous version. Guess what: Disk Utility works now.
I'm re-creating the image anyway and we'll see if the problem exists on that one as well. If it does, I won't be pleased. That'll be two repeatable bugs that break the NetInstall function for me in a year. Not cool.
Anybody else getting weird output if they type hdiutil in to Terminal at the Network Installer? Or do you have a non-working Disk Utility?

Should i run disk utility check after a restore onto a brand new drive?

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