No boot after ONYX

My friend has a 24" iMac (not sure what year...06?) running 10.5.8
I recommend Onyx to him and he downloaded and says he ran maintenance. Then went to reboot and computer chimes, apple logo, exactly 3 revolutions of the gear and then freezes.
Apparently there is a disk in the drive and we've been unable to eject. When holding down mouse button or eject on keyboard the computer shows only a blank white screen.
Need some help with ejecting (no hole) to try and boot off DVD and possible solution as to why it won't reboot after running ONYX

Hi Gordon
Have your friend startup holding the Option key, then from the Startup Manager window select the *Mac OS 10.5.8 on Macintosh HD* to startup from.
Dennis

Similar Messages

New MBP i5 does not boot after hard disk swap

Hi there,
I received my new i5 MBP today. After booting it once with the installed HDD to check if it's ok, I exchanged the hard disk for the one in my Late 2008 Macbook Pro. After doing this, my Late 2008 Macbook Pro boots fine with the (new) hard disk from the new i5 MBP, but the i5 MBP does not boot with my old hard disk.
To give you some details:
- I have installed 10.6.3 on the (old) hard disk that's not booting.
- The i5 MBP boots fine from the installation DVD
- Disk utility finds and can read my hard disk, no errors
- PRAM NVRAM reset did not help
- when booting in safe mode, I can see the system stop booting after or while loading Extensions.mkext
My guess is, it tries to boot and load the wrong Extensions for the new system (CPU? GPU?). I have no idea how to fix this.
Any help would be greatly appreciated!

Focx,
Welcome to Apple Discussions.
Inserting the drive from an earlier model MBP will probably not work. The version of the system you have on that HD is designed for earlier hardware so when you put in in your new machine it's going to be recognized. What I'd recommend is re-installing the disk that came with the new machine and of course putting the 2008's disk back in the old machine. Then use Migration Assistant on the new machine and migrate your data from the old machine into the new machine.
This will provide a much more stable system and should work just fine.
Regards,
Roger

Mac pro cannot boot after upgrade to 10.8.3

My Mac Pro cannot boot after upgrade to 10.8.3. Anything firmware I can reset or how should I do.
I am using a early 2008 Mac Pro

Can you boot into safe mode? http://support.apple.com/kb/ht1455
If not, how about Recovery? http://support.apple.com/kb/ht4718
If you can, run Disk Utlity and repair the disk. You can try rebooting normally, but I would just reinstall after quitting Disk Utility.

Restored 10.6 OS from CD and fails to Boot after Combo upgrade

I have a clean install of Lion on my internal drive and an external clone of the HD from the previous Snow Leopard install. The Clone worked until I updated via the latest auto update. I have App's and other settings to transfer to Lion from this clone so want to get it working so I can ensure all the App's are upgraded to work on Lion or are deleted.
After the external drive failed to boot I reinstalled the system from my Snow Leopard Install CD, not the 24-inch iMac (Mid 2007) restore CD.
I then used Auto updater to install the combo and other updates to 10.6.8 this booted fine until I upgraded Safari 5.1 and Java - the last items that came up on the software updater. Upon restart, the boot failed in the last portion of the boot and at this point the Apple emblem went away and the round circle with diaginoal line apeared.
On starting with the option key down, the clone disk 10.6.8 shows as being available, along with the internal Drive, for booting.
Starting with "command + S" gets through to the last line of the process then states "waiting on Root"
When compaired to a Snow OS that boots OK it is the last line of code before the curser is ready for entering a command.
Can anyone tell me what to look for or how to repair this error so that I can get my data across to Lion. Thanks

Well, in case anyone else has a similar problem I managed to fix the system by the following process:
I reinstalled 10.6.0 from the retail Snow Leopard CD. The drive Booted OK but I needed to be upgraded to 10.6.8 to use the migration tool so I then upgraded using the Software Update utility. Boot failed again at this point and could not be fixed by anything I did.
I then reinstalled 10.6.0 from the CD to try again, but the HD would not boot this time around.
I downloaded CleanApp by Synium Software (http://www.syniumsoftware.com/cleanapp/) on a commendation from the famous eBook, "Take Control of installing Lion" by Joe Kissell of TidBits. I used this from my Lion HD to remove all orphan files, PPC files and Apps, and other junk. Snow Leapard still not Booting after repairs by various disk repair utilities including Apples.
I Booted from my internal HD using Lion and ran SuperDuper to make a new Clone of the failed HD on a second external HD. Took a day and a night to run while I was at work, but the new clone would not boot at this stage so I ran SuperDuper again using the "Smart Update Backup" option. This just adds changed files or missing files to the clone. At the end of this process I had a running Clone that would boot on 10.6.0.
I Booted from the second Clone and used the Software Update utility then to up grade in the two stages the Auto system used to bring my OS up to 10.6.8. This was successful and I had a Bootable Snow Leopard with no old Apps from which to Migrate my data.

Can't Boot After New HD + Time Machine Restore

So a couple days ago my 27" iMac running Snow Leopard started making some weird noises and stalling out. Annoyed, I talked for a couple hours with apple tech support which eventually lead me to run an Apple Hardware Test. This test returned the error
"Alert! Apple Hardware Test has detected an error.
4HDD/11/40000000 SATA(0,0)"
I scheduled an appointment at the Genius Bar, and they replaced the hard drive.
After that I got it home and did a System restore from my time machine backup. It finished fine, but when I restarted it got stuck on the grey apple screen with the spinning dial thing.
I called apple back and they had me do a couple things like repair disk, verify disk, and one person had me reboot into this command line mode and type some stuff in. Nothing worked. After that They had me try to reinstall the OS first from archive, and next by erasing the hard drive and doing it. Both times the install fails with a big yellow exclamation point saying that it couldn't install support files and the OS couldn't be installed.
Any ideas how to fix this?
I'm currently trying to restore from my time machine backup again, but I'm not hopeful.

Here's what I got - apologies for any formatting peculiarities.
The problem: 10.6.6 mac won't boot after time machine restore to disk.
Further symptoms: Booting with Command-v shows several errors: usually blued and loginwindow collapse with errors from launchd. Errors will be of the style "dyld: Symbol not found: CSSMOID_APPLE_TP_MACAPPSTORERECEIPT" and other CommerceKit / CommerceCore framework errors.
A solution: Your Framework Security library may be an older version (possible cause with Time Machine below). The easiest way to fix this is to find another, working 10.6.6 Mac, and update the Security library on the broken machine.
Identifying if you're affected:
1) Boot the broken machine into "target" mode - hold "Command-t" during boot until the [Firewire|http://itunesu.utah.edu/terms/images/Firewire_Icon.png] icon appears.
2) Connect the broken machine to the working 10.6.6 machine with a firewire cable.
3) On the working machine, the disk of the broken machine should mount.
4) Open Terminal
5) Run "ls /Volumes" - the name of disk you mounted should be there (in this example, we'll use "Macintosh HD".)
6) Typing in the path of the broken machine, run:
<pre>
nm /Volumes/Macintosh HD/System/Library/Frameworks/Security.framework/Versions/A/Security | grep random_fd | cut -d. -f2
</pre>
(this does a dump of the library, looking for the version value)
If this comes back with the value 22457 (or less?), your Mac is not booting because it does not have the updated version of the Security library, which is required in 10.6.6 since Snow Leopard added the Appstore / Commerce framework.
Fixing if you're affected:
1) First, make sure the working 10.6.6 Mac has a correct version of the framework:
<pre>
nm /System/Library/Frameworks/Security.framework/Versions/A/Security | grep random_fd | cut -d. -f2
</pre>
For 10.6.6, this should be at least "22458"
2) *Be extremely careful at this point* - Make sure on the mounted disk (not the machine you are working on!) run the following
<pre></pre>
2a) Make a backup of the broken library
<pre>
mkdir /Volumes/Macintosh HD/savedLibrary
cp /Volumes/Macintosh HD/System/Library/Frameworks/Security.framework/Versions/A/Security /Volumes/Macintosh HD/savedLibrary
</pre>
2b) Copy the working version over the non-working version:
<pre>
cp /System/Library/Frameworks/Security.framework/Versions/A/Security /Volumes/Macintosh HD/System/Library/Frameworks/Security.framework/Versions/A/Security
</pre>
3) Eject the mounted disk from the working Mac, disconnect the firewire cable, and reboot the "broken" Mac. It should come up.
If it doesn't, you have problem(s) that are probably outside the scope of this. I'd also suggest restoring your original security library that you saved off.
Suspected cause:
It appears that Time Machine never recorded the change to the Security library after the update. If the library hadn't changed, the machine should have failed to boot like it did after restore the moment a 10.6.6 update was applied.
Inspecting the contents of my Time Machine backups before and after updating shows that Time Machine never updated the Security Framework library - why is still not 100% determined, but restoring from it is definitely broken. Combing through the backup databases on my Time Machine disk:
(I upgraded to 10.6.6 on January 6)
<pre>
for name in 2010-12-30-093337 2011*
do
echo -n "In backup on ${name}, version of Security library is: "
nm "${name}/Macintosh HD/System/Library/Frameworks/Security.framework/Versions/A/Security" | grep random_fd | cut -d. -f2
done
</pre>
In backup on 2010-12-30-093337, version of Security library is: 22457
In backup on 2011-01-04-100707, version of Security library is: 22457
In backup on 2011-01-05-082402, version of Security library is: 22457
In backup on 2011-01-06-092846, version of Security library is: 22457
In backup on 2011-01-07-094827, version of Security library is: 22457
In backup on 2011-01-10-093559, version of Security library is: 22457
In backup on 2011-01-11-110542, version of Security library is: 22457
In backup on 2011-01-12-094137, version of Security library is: 22457
In backup on 2011-01-13-103238, version of Security library is: 22457
In backup on 2011-01-14-113145, version of Security library is: 22457
In backup on 2011-01-18-112856, version of Security library is: 22457
In backup on 2011-01-20-114953, version of Security library is: 22457
In backup on 2011-01-21-103642, version of Security library is: 22457
In backup on 2011-01-24-102321, version of Security library is: 22457
In backup on 2011-01-27-002508, version of Security library is: 22457
In backup on 2011-01-27-011931, version of Security library is: 22457
In backup on 2011-01-27-104406, version of Security library is: 22457
In backup on 2011-01-27-114322, version of Security library is: 22457
In backup on 2011-01-27-123928, version of Security library is: 22457
In backup on 2011-01-27-134523, version of Security library is: 22457

Blue screen error DRIVER_IRQL_NOT_LESS_OR_EQUAL when system boot after sleep.

Hi,I have TOSHIBA LAPTOP with following specification.Product: Satellite P850Part No: PSPKBU-09V01S I am getting the attached error when the computer boot after put on sleep. Please provide solution if any. ==================================================
Dump File         : 062715-17721-02.dmp
Crash Time        : 27-06-2015 22:40:09
Bug Check String : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code    : 0x000000d1
Parameter 1       : ffffffff`ffffffd0
Parameter 2       : 00000000`00000002
Parameter 3       : 00000000`00000000
Parameter 4       : fffff880`00e4639c
Caused By Driver : Wdf01000.sys
Caused By Address : Wdf01000.sys+3239c
File Description :
Product Name      :
Company           :
File Version      :
Processor         : x64
Crash Address     : ntoskrnl.exe+748c0
Stack Address 1   :
Stack Address 2   :
Stack Address 3   :
Full Path         : C:\windows\Minidump\062715-17721-02.dmp
Processors Count : 8
Major Version     : 15
Minor Version     : 7601
Dump File Size    : 304,728
Dump File Time    : 27-06-2015 22:40:54
==================================================

Satellite P850 (PSPKBU-09V01S)
Similar to this model.
Satellite P850-ST2GX2 (PSPKBU-05601S)
Downloads here.
Bug Check 0xD1: DRIVER_IRQL_NOT_LESS_OR_EQUAL
Caused By Driver : Wdf01000.sys    <--- a Microsoft Kernel Mode driver
Check out a few more dmp files and see if another bug check or driver is mentioned.
This occurs on resuming from sleep, right? Does it also occur when resuming from hibernation?
What do you use for anti-malware protection?

Leopard USB install no longer boots after software update

Hi all,
I have recently installed Leopard onto a USB partition in order to perform maintenance on my main Leopard installation. Installation proceeds without a problem however after downloading software updates the USB partition will not boot successfully, despite there being no problems with the disk / volume structures / apparently anything at all. In desperation I also tried to install Tiger, which worked, however I have the same problem after updating - it will not boot! I don't think my hardware is at fault - Techtool Pro tells me all is in order.
Has anyone had this problem and if so, how did you fix it?
Thanks,
Jason

I just installed Leopard onto a USB 2.0 external hard drive for a dual-boot. It booted fine at 10.5.1 but is taking ridiculously long to boot after 10.5.2 (I just got it to finally boot after the update while waiting more than 40 minutes!).
It seems that you may want to attempt booting several times - maybe turning off the machine in between or booting to the internal OS first and then to the external. Can't help you much beyond that as this is my introductory experience with this mess.

Windows 7 x64 Professional does not boot after install

Hello.
I created a Windows 7 VM in Windows Server 2012 R2 Standard Hyper-V, all the installation process done successfully, but after installation, it failed to boot and shows a black screen, and didn't boot after it.
Following is the event log occurs.
'Win-7_QA-Testing' was faulted because the guest executed an intercepting instruction not supported by Hyper-V instruction emulation. If the problem persists, contact Product Support. (Virtual machine ID 5B827557-7009-4D83-AA7C-26A45651EC3A)
VmName
Win-7_QA-Testing
VmId
5B827557-7009-4D83-AA7C-26A45651EC3A
FailureCategory
<not a known problem>
InstructionByteCount
0
InstructionBytes
Rax
0x10
Rbx
0x80
Rcx
0x0
Rdx
0x80
Rsp
0x200
Rbp
0x6e08
Rsi
0x25da4a
Rdi
0x7da4a
R8
0x0
R9
0x0
R10
0x0
R11
0x0
R12
0x0
R13
0x0
R14
0x0
R15
0x0
Rip
0x9d
Rflags
0x10002
FpControlStatus
7F030000000000000000000000000000
XmmControlStatus
0000000000000000801F0000FFFF0000
Cr0
0x10
Cr2
0x0
Cr3
0x0
Cr4
0x0
Cr8
0x0
Xfem
0x0
Dr0
0x0
Dr1
0x0
Dr2
0x0
Dr3
0x0
Dr6
0xffff0ff0
Dr7
0x400
Es
0002000000000000FFFF000020009300
Cs
00000B0000000000FFFF000000B09F00
Ss
0002000000000000FFFF000020009300
Ds
0002000000000000FFFF000020009300
Fs
0002000000000000FFFF000020009300
Gs
0002000000000000FFFF000020009300
Ldtr
0000000000000000FFFFFFFF00000000
Tr
0000000000000000FFFF000000008B00
Idtr
000000000000FFFF0000000000000000
Gdtr
000000000000270000002B0000000000
Tsc
0x3b48531f8c6
ApicBase
0xfee00900
SysenterCs
0x0
SysenterEip
0x0
SysenterEsp
0x0
PendingInterruption
0x0
Any help will be appreciated.
Thanks

How many vCPU and how much RAM have you given the VM?
Are you using alt +F10 and going into the shell to format the VHD and prior to the installation?
Are you using media that has SP1 slip streamed into it?
Have you tried forcing the vm off and then back on again?
Brian Ehlert
http://ITProctology.blogspot.com
Learn. Apply. Repeat.
vCPU = 1
RAM = 2048MB
No, I haven't try formatting the VHD between the window installation. This is the first time I'm facing the issue. It is a simple windows 7 pre activated iso file, not powered by SP1. I have tried forcing the VM off and ON again, but simply i can't get the
window screen back. Whenever the VM malfunctioning like this, then it cannot be shut down from the Hyper-V directly, but to make the VM Turn Off manually.

Mac Mini will not boot after Security Update 2008-007

Hello,
A G4 Mac Mini machine I was asked to take a look at will not boot after the owner (succesfully) installed Security Update 2008-007 from Software Update. Booting always hangs at the blue screen after the Apple logo, and booting in verbose mode reveals that WindowServer is crashing repeatedly. Permissions and filesystems have been repaired, PRAM reset, etc. Safe boot also exhibits the same problem, but it is possible to boot to single user mode. Hardware checks out fine with diagnostic utilities.
Any suggestions on how to fix this? Unfortunately, backups are not available (it's not my machine =).

Hi Arkku , and a warm welcome to the forums!
I'd certainly give Sig's advice a try first.
If that should fail...
applesetupdone...
This was Posted by: JoseAranda at September 9, 2006 3:48 AM
"OK, restart your computer, hold down Command-s and type in the following:
/sbin/fsck -fy Enter
/sbin/mount -uaw Enter
rm /var/db/.applesetupdone Enter
# The rm command is the remove command which deletes the file.
# Robert: I'd rename the file via: mv /var/db/.applesetupdone /var/db/.applesetupdone.old
reboot Enter
Once you've done that the computer reboots and it's like the first time you used the machine. Your old accounts are all safe. From there you just change all other account passwords in the account preferences!!
end of posted by: JoseAranda"
Reset OS X Password Without an OS X CD...
http://theappleblog.com/2008/06/22/reset-os-x-password-without-an-os-x-cd/

Windows 8.1 Pro not booting after install of Hyper V - ASUS z87 + intel 4670K

Hi,
I am running windows 8.1 pro on a intel 4670K 4th Gen Haswell CPU and ASUS z87 plus motherboard. 16gb of kingston hyperx ddr1600 memory.
I have enabled virtualisation technology in the bios. CPU has SLAT.... or Extended Page Table, as intel likes to refer to it.
When I install HyperV platform and management tools the computer configures and reboots
AFter reboot it brings up the blue window image and spinning circle of dots for a while then reboots. It does the same thing again and then reboots and goings into repair mode and asks me to do a system restore. It then restores to before they HyperV install.
I've tried turning off xHCI mode (i.e USB 3.0) in the bios as this seemed to be a known issue with some gigabyte boards. This did not rectify the issue
Updated to latest asus mainboard bios 1405. Same issue still occurs upon install of hyper V.
Automatic repair does not work and I have to restore from system restore point.
I performed a clean boot after installing the feature and it still couldnt boot to windows.. it just sits at windows logo and then restarts a few times and then launches the startup repair. Once the startup repair begins, the only way I can get into windows
is restoring to a system restore point from before the hyperv feature install.
Please see the following logs which may have further information:
CBS Log
https://skydrive.live.com/redir?resid=1F523A0B8734322C!685&authkey=!AGMjUfosLFpzYNI
Setuperr
https://skydrive.live.com/redir?resid=1F523A0B8734322C!682&authkey=!AKS8Jb1S6W2IAH8
Windows update
https://skydrive.live.com/redir?resid=1F523A0B8734322C!683&authkey=!AJdWKuKj4negBoQ
Windowsupdate(1)
https://skydrive.live.com/redir?resid=1F523A0B8734322C!684&authkey=!APplVjuLpNZW_AY
I logged a job with asus support and their response was:
"Clear CMOS and ensure virtualisation technology is turned on in BIOS. If it still doesn't work, seek assistance from Microsoft"
Previously asked this question but took a while to get back to update with the logs and it was listed as Answered.
This issue is still existing and I'd appreciating any assistance.
Simon

Hi Simon,
Thank you for uploading the Log files.
According to the log files, no actuate clue can be found.
So, I suggest you upload the dump file so that we can help you analyze them.
Automatic Memory Dump Settings on Windows 8:
http://www.thewindowsclub.com/automatic-memory-dump-settings-windows-8
It also applies to windows 8.1.
Note: Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
Note: I highly recommend you use SkyDrive to upload collected files and to post screen shots/pictures. Although you might not be used to it, SkyDrive features a lot of free advanced functionality around file storage capacity, sharing,
privacy, and collaboration:
http://skydrive.com
Regards,
Kelvin hsu
TechNet Community Support

Mac Mini server won't boot after logoff, any suggestions?

My mac Mini Server will not boot after administrator logoff, I get a gray screen with the spinning progress wheel, but nothing happens. Any suggestions?

Can you boot into single user mode? If so, run fsck and post the results.

MacBook will not boot after iTunes 10.5.2, iPhoto, and Safari update

My MacBook (mid 2007) will no longer boot after the iTunes 10.5.2, iPhoto and Safari update. It will load Lion but will no open any applications. After running Repair Disk Permissions and Repair Disk in the Recovery HD, Lion will ask for my password, log in, then display the menu bar and a grey background and remain unresponsive. I tried downloading a new copy of Lion in Recovery HD but it will not get past about 1/8 of the download bar before freezing and becoming unresponsive. Any ideas?

Any ideas?? I really need to see if this is fixable! Thanks!

MacBook Pro will not boot after software update

MacBook Pro will not boot after doing an Apple Software Update (of course they will not help you). MONEY, MONEY, MONEY is the name of the game. They can cause your computer to crash and still charge you!
Does anyone have an answer to why my computer is showing a little gear spinning for hours? I have tried several things with NO luck.
Thanks-

Run through the list of fixes here
Step by Step to fix your Mac

HP Pavilion 15-n268sa will not boot after windows update (windows 8.1)

After a series of windows update (windows 8.1) my HP Pavilion 15-n268sa will not boot up, no fan noises, no lights no nothing.
I have tried a "hard reset" a number of times with no success.
When the battery is present the white LED flashes 3 times when the power button is pressed.
Please please help.

Hello Cuffy,
Welcome to the HP Forums!
I understand you notebook will not boot after a series of Windows updates.
Can you tell me if you are able to access the HP Recovery Manager by repeatedly tapping the F11 key while the notebook turns on? If you can access this, try doing a system restore to before you installed the updates. If not I would suggest you go through this document: Computer Does Not Start and the LEDs Blink or the Computer Beeps.
If it's the Caps Lock light that is blinking this document will tell you exactly what the error is (spoiler: 3 beeps is a memory failure). This could also explain the failed updates. The updates are stored in the RAM before being applied to the operating system.
You can try reseating the RAM, or using only 1 of the RAM cards, as you have 2x4GB cards. If it still doesn't work with 1 card, try the other card to confirm it has failed.
You can replace defective cards via HP Phone Support if covered under warranty or at the HP Part Store if not covered. You can contact HP Technical Support at 1-800-474-6836 in North America. For all other regions click here.
Hopefully this information helps!
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

Imac won't boot after 10.6.8 update

Not sure where to start with this...
Just tried to boot after the latest 10.6.8 update and have the grey screen with the spinning disk.

I would suggest that you do the following as a start:
Repair the Hard Drive and Permissions
Boot from your Snow Leopard 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 Utilities menu. 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.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro 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.
If the drive is OK then download the Mac OS X 10.6.8 Update Combo installer and reinstall the update. See if that resolves your problem.
If the above does not fix the problem then you will need to reinstall Snow Leopard:
Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard 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 Utilities menu. 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.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro 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.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.

No boot after ONYX

Similar Messages

Maybe you are looking for