Stuck at preloading screen after failed reboot with cd

I am stuck at the preloading screen after i got the "something was wrong during reboot from cd message", but now i can't seem to reboot from the cd by pressing "c" after startup, nor go into safemode by pressing "shift" or hardware by "d", i just go onto the preloading screen for 20+ mins and nothing happens...

Hi d,
You can try an SMCReset: http://support.apple.com/kb/HT3964
If that doesn't help, it might be time for a "genius" bar appointment. Was the optical drive working ok? Does the DVD look ok? Is it the proper one for your MBP? What issues were you having prior to this that made you decide to boot from the disc?

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Stuck at preloading screen after failed reboot from cd

I am stuck at the preloading screen after i got the "something was wrong during reboot from cd message", but now i can't seem to reboot from the cd by pressing "c" after startup, nor go into safemode by pressing "shift" or hardware by "d", i just go onto the preloading screen for 20+ mins and nothing happens...

Interesting new terminology.
What is on this preloading screen ??

MBP Stuck at Welcome Screen after hard reboot.

Hi All,
I was trying to restart my 2.16ghz MBP last night, and it froze, so I did a hard restart. When I booted it again, it came to the welcome screen. If I go through the welcome screen wizard, it hesitates for a moment, and goes right back to the beginning of the welcome screen.
I'm unable to boot from the optical drive, nor will it detect my Time Machine drive.
Any thoughts?

Can you insert the OSX install CD (#1) that came with the computer? If so, then restart, hold down "c" as soon as it chimes, and then once booted go to disk utility and use it to repair your internal hard disk. Maybe this works for your problem.

My new iphone 5 is frozen, with the cord to computer symbol on the screen after failing to finish updating to ios 7. iTunes no longer sees the phone. I've tried rebooting the computer, rebooting the iPhone, but iTunes still doesn't see the iPhone.

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If your computer doesn't see the phone when you plug it in, you may have to take it to an Apple Store.

Stuck at grey screen after reboot

I seem to be stuck at the grey screen after a reboot of my server. Here are the symptoms and I'm wondering if anyone has experienced them before or has some idea of where to look:
1) Over the last couple of weeks, I've noticed the entire system freezing up for 10-20 seconds. The spinning pinwheel pops up and when my office is really quite, it sounds like either a fan is starting on the system or a hard drive is spinning up. Note that I've turned off all 'spin drives down when possible' in energy savings.
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After a recent software update, I had to reboot it, and that's where it got stuck. Could be something there for some time, but my server usually runs for months at a time, unless an update requires a reboot.
Thanks for any help or suggestions!

Could you be more specific about what disks you used to boot with and exactly what programs you ran...
I cannot seem to get it to boot from the "Admin Tools" disk using the "D" key.
Also, when booting from the "Mac OS X Server" disk I can access Disk Utility, but do not see Raid Utility anywhwere.

TS2570 My Mac is stuck on grey screen what's wrong with it and am I going to lose everything

My Mac is stuck on grey screen what's wrong with it and am I going to lose everything

Hopefully you have a backup, but...
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (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.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

My MacBook pro is stuck on white screen after shut down. Now, neither this is turn on nor turn off. I had to do

My MacBook pro is stuck on white screen after shut down. Now, neither this is turn on nor turn off.

You should be able to turn off your MBP by pressing the power button down continously for about 5-10 sec. When you reboot it you are going to want to enter into a terminal screen. Hopefully the following YouTube video helps: http://www.youtube.com/watch?v=qKOX72xNmbo

HT201263 iPod touch 4th gen stuck on apple screen after trying to update ios 6

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Try:
- iOS: Not responding or does not turn on
- Also try DFU mode after try recovery mode
How to put iPod touch / iPhone into DFU mode « Karthik's scribblings
- If not successful and you can't fully turn the iPod fully off, let the battery fully drain. After charging for an least an hour try the above again.
- If still not successful that indicates a hardware problem and an appointment at the Genius Bar of an Apple store is in order.

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I have a black screen and cant reboot with the recovery disc but I seem to be getting nowhere.
I find it strange I cant ask Toshiba direct about my problem but I have to wait for a kind hearted person to solve my problem or give me a helping hand

Of course you can ask Toshiba. Toshiba has Authorized service providers worldwide and I hope some of them are in your country too.
So please visit Toshiba support page under http://eu.computers.toshiba-europe.com > Support & Download > Find an ASP and contact nearest service provider. Just explain the situation and I hope they will help you.
Back to your problem:
It is not easy to say why this happen. The whole issue is not described so well and I am missing some important points.
Maybe you have upgraded RAM and now notebook doesnt start properly. It is also possible that CPU is defective. It can be so many different reasons for this.
Best thing you can do is to contact service and ask for help. they can run diagnostic tools and find out quickly what the problem is.

Blue screen after save reboot

hi,
in the middle of work my imac suddenly showed vertical grey / white bars all over the screen.
I reboot with shift key pressed. imac shoes grey screen with apple logo, then the grey progression bar, then blue screen with very small sized vertical dark blue / black bars. is this a hint to graphic card defect?
my imac is a 27" 3,4 ghz quadcore, 16 gb ram, ssd harddrive, os 10.8.x

Take the machine in for service.
We can't help you with that issue.
Good luck.

IMAC intel A1208 is stuck on blue screen after start-up. What is the fix?

IMAC intel A1208 is stuck on blue screen after start-up. How can this condition be resolved?

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PowerBook G4 hangs after install/reboot with Combo Mac OS X 10.5.8 update

I've got a Titanium PowerBook G4 1GHz. It had Mac OS X 10.5.4 installed.
Then I went to Software Update and it downloaded the Combo software 10.5.4 and after it rebooted, it is stuck at "Installing 2 items, Configuring installation."
You can see the progress bar pulsating but it's stuck and I dont hear any hard drive activity. I had to hard power down and got back in and did Software Update again and after it rebooted, same issue.
Whats up with that?

Some general advice on updating Leopard:
It is worth noting that it is an extreme rarity for updates to cause upsets to your system, as they have all been extensively beta-tested, but they may well reveal pre-existing ones, particularly those of which you may have been unaware. If you are actually aware of any glitches, make sure they are fixed before proceeding further.
So before you do anything else:
If you can, make a full backup first to an external hard disk. Ideally you should always have a bootable clone of your system that enables you to revert to the previous pre-update state.
Turn off sleep mode for both screen and hard disk.
Disconnect all peripherals except your keyboard and mouse.
1. Repair Permissions (in Disk Utility)
2. Verify the state of your hard disk using Disk Utility. If any faults are reported, restart from your install disk (holding down the C key), go to Disk Utility, and repair your startup disk. Restart again to get back to your startup disk.
At least you can now be reasonably certain that your system does not contain any obvious faults that might cause an update/upgrade to fail.
3. Download the correct version of the COMBO update from the Apple download site.
The Combo updater of Leopard 10.5.8 can be found here:
http://support.apple.com/downloads/Mac_OS_X_10_5_8_Combo_Update
If you prefer to download updates via Software Update in the Apple menu (which would ensure that the correct version for your Mac was being downloaded), it is not recommended to allow SU to install major (or even minor) updates automatically. Set Software Update to just download the updater without immediately installing it. There is always the possibility that the combined download and install (which can be a lengthy process) might be interrupted by a power outage or your cat walking across the keyboard, and an interrupted install will almost certainly cause havoc. Once it is downloaded, you can install at a time that suits you. You should make a backup copy of the updater on a CD in case you ever need a reinstall.
Full details about the 10.5.8 update here: http://support.apple.com/kb/HT3606
More information on using Software Updater here:
http://support.apple.com/kb/TA24901?viewlocale=en_US
Using the Combo updater ensures that all system files changed since the original 10.5.0 are included, and any that may have been missed out or subsequently damaged will be repaired. The Delta updater, although a temptingly smaller download, only takes you from the previous version to the new one, i.e. for example from 10.5.7 to 10.5.8. Software Update will generally download the Delta updater only. The preferable Combo updater needs to be downloaded from Apple's download site.
Now proceed as follows:
4. Close all applications and turn off energy saving and screensaver.
5. Unplug all peripherals except your keyboard and mouse.
6. Install the update/upgrade. Do not under any circumstances interrupt this procedure. Do not do anything else on your computer while it is installing. Be patient.
7. When it ask for a restart to complete the installation, click restart. This can take longer than normal, there are probably thousands of files to overwrite and place in the correct location. Do nothing while this is going on.
8. Once your Mac is awake, repair permissions again, and you should be good to go!
If your Mac seems slightly sluggish or ‘different’, perform a second restart. It can’t hurt and is sometimes efficacious! In fact a second restart can be recommended.
9. Open a few of your most used applications and check that all is OK. In this connection please remember that not all manufacturers of third party applications and plug-ins, add-ons, haxies etc, will have had time to do any necessary rewrites to their software to make them compliant with the latest version of your operating system. Give them a week or two while you regularly check their websites for updates.
N.B. Do not attempt to install two different updates at the same time as each may have different routines and requirements. Follow the above recommendations for each update in turn.
Lastly, Apple's own article on the subject of Software Update may also be useful reading:
http://docs.info.apple.com/article.html?artnum=106695
[b]If you are updating Safari (or just have):[/b]
Input Managers from third parties can do as much harm as good. They use a security loophole to reach right into your applications' code and change that code as the application starts up. If you have installed an OS update and Safari is crashing, the very [i]first[/i] thing to do is clear out your InputManagers folders (both in your own Library and in the top-level /Library), log out and log back in, and try again.
So, disable all third party add-ons before updating Safari, as they may not have been updated yet for the new version. Add them back one by one. If something goes awry, remove it again and check on the software manufacturer's website for news of an update to match your version of Safari.
Most errors reported here after an update are due to an unrepaired or undetected inherent fault in the system, and/or a third party add-on.
Additional tips on software installation here:
http://docs.info.apple.com/article.html?artnum=106692
To reiterate, Input Managers reach right into an application and alter its code. This puts the behavior of the affected application outside the control and responsibility of its developers: a recipe for problems. That's not to say that issues absolutely will ensue as a result of Input Managers, but you, as a user, must decide. If the functionality of a specific Input Manager or set thereof is really important to you, you may well choose to assume the associated risk.
Again, the advice is to remove all Input Managers from the following directories:
/Library/InputManagers
~/Library/InputManagers
especially prior to system updates (they can always be added back one-by-one later).
Solutions for troubleshooting installation, startup, and login issues in Mac OS X v10.5
http://support.apple.com/kb/TS1541?viewlocale=en_US

Stuck at login screen after update froze

Hi everyone, I have a Macbook that is a couple years old and have Leopard on it. Last night, I was prompted to install several updates and then restart my Macbook. I did so and then the updates began to install, but then appeared to stall. I hit the power off button and then turned my Macbook back on again. This brought me to the login screen, but I don't have my Macbook set to require me to login each time I use it. I entered my password and then it went to the blue screen like it was about to bring me to the desktop. But that didn't happen. It brought me back to the login screen, which is where I am still stuck as of this writing. Is there anything I can do? Thanks for your help.

No guarantee this will solve your problem, but you can give it a try:
You will need to type some Unix commands. If you are not comfortable with this, I don't know of anything other than a re-install. But if you are careful, you should be OK. I recommend you print this out in a largish mono-spaced font so you don't miss any spaces (or add extra ones). Note that case is important.
Be careful. Some of these commands are dangerous, since you are going to be root.
Start up in Single-User mode by holding down the command (Apple) key and the 's' key while you press the power switch. You can let go the keys when you see white text on a black background. When this has finished you will see a prompt ending in '#', although there may be other messages. Type
/sbin/fsck -fy
followed by a return, at the prompt and wait a few seconds for 8-10 lines of output. If the last line says repairs were carried out, repeat this command until you get a message 'The volume <yourdiskname> appears to be OK'. Then continue with
/sbin/mount -uw /
cd /Library/Preferences
rm com.apple.loginwindow.plist
rm com.apple.windowserver.plist
cd /Library/Caches
rm -r *
cd /System/Library
rm Extensions.kextcache
cd /System/Library/Caches
rm -r *
reboot
This should now take you to a proper login screen after the normal boot sequence. You should then Repair Permissions by using Disk Utility (in your /Applications/Utilities folder).
If you get error messages saying files do not exist, just ignore them and type reboot.
If the above is unsuccessful then you may be able to reinstall OS X using an Archive and Install which does not erase the hard drive:
How to Perform an Archive and Install
1. Be sure to use Disk Utility first to repair the disk before performing the Archive and Install.
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, then quit DU and return to the installer.
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.
2. Do not proceed with an Archive and Install if DU reports errors it cannot fix. In that case use Disk Warrior and/or TechTool Pro to repair the hard drive. If neither can repair the drive, then you will have to erase the drive and reinstall from scratch.
3. Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When you reach the screen to select a destination drive click once on the destination drive then click on the Option button. Select the Archive and Install option. You have an option to preserve users and network preferences. Only select this option if you are sure you have no corrupted files in your user accounts. Otherwise leave this option unchecked. Click on the OK button and continue with the OS X Installation.
4. Upon completion of the Archive and Install you will have a Previous System Folder in the root directory. You should retain the PSF until you are sure you do not need to manually transfer any items from the PSF to your newly installed system.
5. After moving any items you want to keep from the PSF you should delete it. You can back it up if you prefer, but you must delete it from the hard drive.
6. You can now download a Combo Updater directly from Apple's download site to update your new system to the desired version as well as install any security or other updates. You can also do this using Software Update.

Stuck at login screen after Lion install

I downloaded and installed Lion on my late 2008 mbp with the latest updated snow leopard and after the install, I'm stuck on a screen with icons of my users. If I click nothing happens. I tried repairing disk permissions as well as re-installing Lion but nothing has helped. Any ideas?

You might see if this works:
Clearing Caches to Fix Login Problem
You will need to type some Unix commands. If you are not comfortable with this, I don't know of anything other than a re-install. But if you are careful, you should be OK. I recommend you print this out in a largish mono-spaced font so you don't miss any spaces (or add extra ones). Note that case is important.
Be careful. Some of these commands are dangerous, since you are going to be root.
Start up in Single-user Mode. When this has finished you will see a prompt ending in '#', although there may be other messages. Enter the following commands after the prompt:
/sbin/fsck -fy
Press RETURN. Wait a few seconds for 8-10 lines of output. If the last line says repairs were carried out, repeat this command until you get a message 'The volume <yourdiskname> appears to be OK'. Then continue with:
/sbin/mount -uw /
cd /Library/Preferences
rm com.apple.loginwindow.plist
rm com.apple.windowserver.plist
cd /Library/Caches
rm -r *
cd /System/Library
cd /System/Library/Caches
rm -r *
reboot
Press RETURN after each command.
This should now take you to a proper login screen after the normal boot sequence. You should then Repair Permissions by using Disk Utility (in your /Applications/Utilities folder).

Stuck at preloading screen after failed reboot with cd

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