Grey screen and kernel after holding down shift

My iMac was performing ver slowly so I restarted.
After that cannot get passed the grey screen.
I tried holding the shift button down to go into safe mode but a kernel screen starts ( black and dos type commands appear)
Do not know what to do.

If you're running on OS X 10.6 see this.
If you're running on OS X 10.7 see this.

Similar Messages

Grey screen and ? after updating any answers please?

Grey screen and ? after updating my Mac Book Air?
What next please?
Anyone else had this problem?

Something appears to have gone wrong while running the updater. Use the MacBook Air's original thumbdrive or the recovery partition(if it's running 10.7 or newer) to repair the internal drive or install a new OS.
(83104)

Lockups, and Grey Screens, and Kernel Panics, Oh My!

Everything I am about to describe happened on my 15" 1.67Ghz Powerbook (1 gig of ram, 128MB VRAM).
While I was (Secure) emptying my trash earlier today, my computer locked up, spinning beach ball of death and everything. Just prior to that while it was still emptying the trash, I attempted to open a folder that I know had files in it, but the finder window claimed that there were 0 files there. Anywho since the entire system seized up I was forced to do a hard restart. When the computer came back to life, just after hearing "The Chord" I was treated to a black grey screen (Darker than the grey of Apple's "pinwheel Loading screen"). I left the computer for a while hoping it would fix itself with time. Sadly, it did not, and I was forced to do a hard restart again. This time after waiting on the grey screen for about 5-10 minutes it displayed a folder icon in the center with a logo on it that switched between the "Finder Face" and a question mark. I tried to boot from my install disc only to have it cause a Kernel Panic just as it would give me hope by loading the "Apple Pinwheel loading screen" sans the pinwheel. Since then I have cleared my PRAM, NVRAM, PMU, Tried to boot into safe mode, held X to try to force it to load OS X, and various other things, all to no avail, and now, to add insult to injury, the Install disc refuses to eject, choosing to make a knocking sound instead. So every time I restart it attempts to start up, then it attempts to load the DVD and I get another beautiful Kernel Panic. It's a vicious cycle.
So, what do you say, can you help me? This laptop has my life on it. And although I backup, not everything was saved before the crash (The first of the month is my backup/cleanup day), and there is a lot to lose if I lose my computer, so I need help here.
Please help me, you're my only hope...until AppleCare comes back from vacation.
Thank you for your time.
-Nick

foxymcfox:
Welcome to Apple Discussions.
Sometimes having too many items, or just too much in the Trash as you try to empty Trash can lead to the spinning beachball as the computer tries to figure out what to do.
The flashing ? alternating folder indicates that the computer cannot find a bootable volume.
I suggest that you begin with Repair Disk
Insert Installer disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu (Panther and earlier) or Utilities menu (Tiger) and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
(Check S.M.A.R.T Status of HDD at the bottom of right panel, and report if it says anything but Verified)
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
If DU reports errors it cannot repair you will need to use a utility like Tech Tool Pro or Disk Warrior
Please do post back with an update and/or with further questions or comments.
Cheers
cornelius

Grey screen on restart after Yosemite upgrade !

Mack would not finish restart after update to Yosemite, stuck on grey screen!

az1103
Try powering down and rebooting but hold down SHIFT key to go into Safe Mode.
Keep holding the SHIFT key. It may take a while. Be patient, until the computer does its Venetian blinds thing and goes into Safe Mode
Background: I had started an install last night about 10 hours ago on a MBP 17 mid 2010 with 8 GB. Never took.
Finally booted into Safe Mode. Did Numbers, Keynote, Pages updates.
Then kept my fingers crossed and rebooted. It works fine. Note - I am liking Yosemite so far.

HT1199 my computer displays grey screen and apple logo for 10 minutes or more during start up and shut down. sometimes it refuses to shut down . this issues started after installing OS lion. what do i do?

my computer displays grey screen and apple logo for 10 minutes or more during start up and shut down. sometimes it refuses to shut down . this issues started after installing OS lion. what do i do?

I don't think it's exactly an incomplete installation brody, but most likely in-correct permissions somewhere along the line that either happened, or became magnified during the upgrade. Also, it could be corruption as well.
First thing to do, is boot up holding down Shift key to do a safe-boot so we an clean up any corrupted OS caches, after that do another reboot, but go to the Lion recovery, and scan the HD for errors, repair any if you find them, and then try to do a Repair Permissions job.
That should fix the issue, if not, we can start doing a PRAM reset and SMC for good measure.

After installing Mavericks my MacBook Pro and my MacMini can't shut down, only a grey screen and finish. Must be killed by the power button. Why?

After installing Mavericks my MacBook Pro and my MacMini can't shut down, only a grey screen and finish. Must be killed by the power button. Why?
Nach der Installation von Mavericks kann ich weder das MacBook Pro (2 x 2.4 GHz) noch den MacMini (2 x 2.66 GHz) herunterfahren. Es bleibt ein dauerhafter grauer Bildschirm. Nach 20 min habe ich einen erzwungenen Neustart durchgeführt.
Ausserdem startet die Macs wesentlich langsamer als mit OS X 10.6.8.

same here... sometimes it works, most of the time it doesn't!!

My iPod has a white screen. After holding down the middle and the menu button it goes black, then back white, and then beeps twice but stays white. It never shows the apple logo, just stays white - help!

My iPod has a white screen. After holding down the middle and menu button, the screen goes black then back to white and beeps twice. I have returned to original settings and resorted content to no avail. I still have a white screen. I have plugged it up and tried resetting again and again, still a white screen with two beeps - help.

I have the same exact issue. Fifth generation iPod Nano, blank screen, Restore had no effect. I'm running Windows 7 Home, with all software up-to-date. I suspect hardware damage. Any clarification would be appreciated. Thank you in advance.

Grey screen no apple followed by blue screen with vertical lines. Graphics and logic board replaced 6 months ago. What to do? I held down shift, it gets HOT HOT and makes noises. (for safety mode) followed by a blank grey screen and blue screen

grey screen no apple followed by blue screen with vertical lines. Graphics and logic board replaced <6 months ago. What to do? I held down shift, it gets HOT HOT and makes noises. (for safety mode) followed by a blank grey screen and blue screen. Then tried the other way (sorry, I think it's command alt delete? I don't remember) and it turned from grey (no apple symbol) to blue blank. Then third time, grey followed by blue with vertical lines, not blocky clear lines that you can see if you are close to it.
Thanks for any help!

You have to take the computer to the Apple store to have it checked out.
Genius Bar reservation
http://www.apple.com/retail/geniusbar/
Best.

After my latest update my music wont load on ipad i just get a blank grey screen and no music titles yet when i check usage it says music is there, ive tried unsync it then redoing and still nothing

after my latest update my music wont load on ipad i just get a blank grey screen and no music titles yet when i check usage it says music is there, ive tried unsync it then redoing and still nothing

Rebooting will not make you lose any content. Rebooting is when you hold the home button and the sleep button down at the same time until the Apple logo appears on the screen.
You can these suggestions. One might work for you.
Make sure that you do not have a stalled download in iTunes - a song or podcast .... if you have a download in there that did not finish, complete that one first. Only one thing can download at a time on the iPad so that could be what is causing the problem.
If that doesn't work - sign out of your account, restart the iPad and then sign in again.
Settings>Store>Apple ID. Tap your ID and sign out. Restart the iPad by holding down on the sleep button until the red slider appears and then slide to shut off. To power up hold the sleep button until the Apple logo appears and let go of the button.
Go back to Settings>Store>Sign in and then try to update again. Tap one waiting icon only if necessary to start the download stream.

I am getting a message in the middle of my imac screen instructing me to hold down the on-off button and turn off the machine. The message is in several foreign languages beside english, and there is not way to get rid of it. The curser is inactive.

I am getting a message in the middle of my imac screen instructing me to hold down the on-off button and turn off the computer. The message is in several languages and completely takes over the computer disabling the mouse and all other functions. The only option is to unplug the computer or turn it off. I'm concerned that this is a virus. It does not look like it's related to Apple or the imac OS.

That sounds like a kernel panic. These are generally hardware related, often caused by poorly seated or fauly RAM.
What is a Kernel Panic?
http://support.apple.com/kb/TS3742
and http://support.apple.com/kb/TS1892?viewlocale=en_US
http://developer.apple.com/mac/library/technotes/tn2002/tn2063.html
More details here:
http://www.thexlab.com/faqs/kernelpanics.html
Useful articles on how to avoid and eliminate kernel panics here:
http://reviews.cnet.com/8301-13727_7-10344626-263.html?tag=mfiredir
http://www.macworld.com/article/2027201/how-to-troubleshoot-a-kernel-panic.html# tk.nl_mwhelp

My computer was rebuilt this week and I am in the process of setting up iTunes and have a weird setup issue. The music in my playlists plays but the same song doesn't play from the library. Initially, I opened ITunes while holding down Shift of control.

My computer was rebuilt this week and I am in the process of setting up iTunes and have a weird setup issue. The music in my playlists plays but the same song doesn't play from the library. Initially, I opened ITunes while holding down Shift of control key.

Scratch the post above - the musics that plays in the playlist also plays in the library and that is because i forgot that i imported from the cd yesterday. Basically, I see the rest of my music, but it doesnt' play and tells me it can't locate the file though the location in 'perferences' points to the correct location. Getting iTunes to play after a new computer or rebuild is a headache.

My iPad won't charge after plugging into my computer and after holding down the power and home button at same time for 10 seconds- Can anybody help? Has IOS7.0 but the most up-to-date version

My iPad won't charge after plugging into my computer and after holding down the power and home button at same time for 10 seconds… Can anybody help? Has IOS7.0 but not the most up-to-date version

It's just the battery sign - nothing else. I've tried to reboot by holding down both power and home key for 10+ seconds, waiting for the apple logo - but nothing happens. It's plugged into the imac at the moment. I tried to recharge it overnight using the normal charger - but no luck. It went dead during a Skype call with a friend - even though it was powered into the mains - albeit at a low battery level at the time

My iPad has not been dropped or damaged at all. The screen is grey fuzzy and has coloured lines down the middle. iPad 3 also.

My iPad has not been dropped or damaged at all. The screen is grey fuzzy and has coloured lines down the middle. iPad 3 also.

Basics from the manual are restart, reset, restore.
Try all of these.
If these fail, then:
iOS: Unable to update or restore

My iphone 4s has a black screen. If I hold down the on button, it will occasionally flicker and then go black. How do I get it to turn on?

My Iphone 4s has a black screen. If I hold down the ON button, it will occasionally flicker and then go black again.
Is it dead? Is there any way to fix it? It's sitting in a bag of rice right now, a desperate measure.

Are you saying it got water damage? If not what mende1 suggested, or the following
http://support.apple.com/kb/TS3281
is the way to proceed. If it got wet all bets are off.

Help! Macbook wont shut down, i have a grey screen and nothing happening! It wont even respond to turn off button

Help! Macbook wont shut down, i have a grey screen and nothing happening! It wont even respond to turn off button

Help! Macbook wont shut down, i have a grey screen and nothing happening! It wont even respond to turn off button

Grey screen and kernel after holding down shift

Similar Messages

Maybe you are looking for