Extended white screen on startup and shutdown?

When I startup, I receive the gray screen with the apple logo and spinning wheel, then the screen turns white and sits for 30-45 seconds before showing me my desktop. When I shutdown, it pretty much does the same thing. What could be wrong? My system still works, but I am concerned about the delays. The issue existed before I upgraded to Lion and still exists.

No solution, I'm afraid, but just to say I seem to have the same problem.
Since installation of Mountain Lion, my iMac no longer starts up properly. It tends (not always, strangely, but about 75% of the time) to stop after a few seconds and leave me with a black screen filled with white text. I believe this is verbose mode or some such. I googled, which led me here and elsewhere, and I phoned AppleCare. Answers were little beyond a PRAM reset. Nothing worked.
My iMac had to go off to repair for a separate incident anyway, so I asked them to look into this too. (The separate incident was truly separate. A faulty optical drive. It turned out Apple had neglected to connect it after dealing with another, serious hardware fault before I'd installed Mountain Lion.) Apple told me that, with regard to the startup problem, there was nothing they could do, loads of people had the same problem and fingers crossed a software update would come along at some point to fix it.
My iMac has to go back again anyway, so I might as well ask them to look into the Mountain Lion issue again, just in the hope they again register the problem and that that might help a fix actually turn up one day. (Apple evidently damaged my iMac taking it apart to deal with the optical drive. It now has white glowing spots and a one-inch streak emanating from behind the screen.) Mountain Lion just seems in line with the evermore nightmarish Apple "experience". I shouldn't have bothered, of course.
(My iMac is 2.5 years old, and I skipped Lion and upgraded from Snow Leopard.)

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HT2452 White screen at startup and stays?? How can I get past this?

White screen at startup and stays?? How can I get past this?

Safe Boot is perfoming a disk integrity check and repair process which may take a long time. Let it complete, though if the startup disk requires repair to begin with, it is likely already in a failed state.
If the Mac eventually starts, take that opportunity to back up your important data if you have not already done so. It may be your last.

White screen at startup and no bluetooth

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Should still be under warranty. Call Apple's Customer Support - in the US, (800) 767-2775

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My Mac is producing gray screen at startup and crashes. I'm afraid that everything explode and disappear, and can no longer connect and work with my Mac. Can anyone help ??
Thank you.
Problem description:
gray screen at startup and crashes
EtreCheck version: 2.1.1 (104)
Report generated 6 de dezembro de 2014 13:29:43 BRST
Hardware Information: ℹ️
MacBook Pro (15-inch, Early 2011) (Verified)
MacBook Pro - model: MacBookPro8,2
1 2.2 GHz Intel Core i7 CPU: 4-core
4 GB RAM
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
AMD Radeon HD 6750M - VRAM: 1024 MB
Color LCD 1440 x 900
Intel HD Graphics 3000 - VRAM: 384 MB
System Software: ℹ️
Mac OS X 10.6.8 (10K549) - Uptime: 0:31:56
Disk Information: ℹ️
TOSHIBA MK7559GSXF disk0 : (698,64 GB)
S.M.A.R.T. Status: Verified
- (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 749.81 GB (378.70 GB free)
MATSHITADVD-R   UJ-898
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple, Inc. MacBook Pro
Problem System Launch Daemons: ℹ️
[not loaded] org.samba.winbindd.plist [Support]
Launch Agents: ℹ️
[running] com.babylon.activation.plist [Support]
[loaded] com.divx.dms.agent.plist [Support]
[loaded] com.divx.update.agent.plist [Support]
[loaded] com.hp.help.tocgenerator.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Support]
[loaded] com.facebook.videochat.[redacted].plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[running] com.skype.c2c_service.plist [Support]
User Login Items: ℹ️
iTunesHelper UNKNOWNHidden (missing value)
FaceboxPro Aplicativo (/Applications/FaceboxPro.app)
Safari Aplicativo (/Applications/Safari.app)
Octoshape Aplicativo (/Users/[redacted]/Library/Octoshape/Octoshape.app)
uTorrent UNKNOWN (missing value)
Dropbox Aplicativo (/Applications/Dropbox.app)
Inkscape UNKNOWN (missing value)
RealPlayer Downloader Agent Aplicativo (/Users/[redacted]/Library/Application Support/RealNetworks/RealPlayer Downloader Agent.app)
HP Product Research Aplicativo (/Library/Application Support/Hewlett-Packard/Customer Participation/HP Product Research.app)
Internet Plug-ins: ℹ️
OVSHelper: Version: 1.1 [Support]
Google Earth Web Plug-in: Version: 7.1 [Support]
Flip4Mac WMV Plugin: Version: 2.4.4.2 [Support]
RealPlayer Plugin: Version: Unknown [Support]
AdobePDFViewerNPAPI: Version: 10.1.12 [Support]
FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 [Support]
DivX Web Player: Version: 3.1.1.9 - SDK 10.6 [Support]
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Support]
Flash Player: Version: 15.0.0.239 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.6.6
iPhotoPhotocast: Version: 7.0 - SDK 10.7
SharePointBrowserPlugin: Version: 14.1.2 [Support]
AdobePDFViewer: Version: 10.1.12 [Support]
JavaAppletPlugin: Version: 13.9.8 - SDK 10.6 Check version
User internet Plug-ins: ℹ️
npsf_uni: Version: sf 3.3.2.1 [Support]
OctoshapeWeb: Version: 1.0 - SDK 10.8 [Support]
Safari Extensions: ℹ️
Searchme Adware! [Remove]
Skype Click to Call
iSkyDeluxe
TED HTML5 video playe
Audio Plug-ins: ℹ️
iSightAudio: Version: 7.6.6
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Flip4Mac WMV [Support]
Skype Click to Call [Support]
Tuxera NTFS [Support]
Time Machine: ℹ️
Time Machine information requires OS X 10.7 "Lion" or later.
Top Processes by CPU: ℹ️
      5% WindowServer
      4% DivXMediaServer
      1% fontd
      0% RealPlayer Downloader Agent
      0% WebProcess
Top Processes by Memory: ℹ️
296 MB WebProcess
202 MB FaceboxPro
185 MB Microsoft PowerPoint
163 MB Safari
137 MB Microsoft Word
Virtual Memory Information: ℹ️
843 MB Free RAM
1.76 GB Active RAM
706 MB Inactive RAM
978 MB Wired RAM
577 MB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Dec 6, 2014, 12:58:24 PM Self test - passed
Dec 6, 2014, 12:23:11 PM Kernel_2014-12-06-122311_MacBook-Pro-de-...panic [Details]
Dec 6, 2014, 07:08:28 AM PluginProcess_2014-12-06-070828_MacBook-...crash
Dec 5, 2014, 05:24:39 PM WebProcess_2014-12-05-172439_MacBook-Pro...crash
Dec 5, 2014, 10:45:59 AM Kernel_2014-12-05-104559_MacBook-Pro-de-...panic [Details]
Dec 5, 2014, 10:18:14 AM Kernel_2014-12-05-101814_MacBook-Pro-de-...panic [Details]
Dec 3, 2014, 08:28:35 PM locationd_2014-12-03-202835_localhost.crash
Dec 5, 2014, 10:25:44 AM Kernel_2014-12-05-102544_MacBook-Pro-de-...panic [Details]

Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup Issues - Resolve
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Having an intermittent issue where my iMac blanks out on me. On restarting I get bands running down the screen with pixels jumping around, then the white screen of death and nothing... Wouldn't restart all weekend, now fine..? any ideas whats wrong?

Having an intermittent issue where my iMac blanks out on me. On restarting I get several bands running down the screen with pixels jumping around within the bands, then the white screen of death and nothing... This happens intermittently and usually restarts OK. Happened again three days ago and wouldn't restart for two days (again the bands/pixels etc) but now operating fine? Any ideas whats wrong with my iMac and what the solution may be? Also gets very hot from time to time, particularly if I'm playing music/watching youtube/movies for extended periods. Mac is 3.5 years old, running OS X 10.6.8, processor 3.4 GHz i7 memory 8GB 1333 MHz DDR3

If you live near an Apple Store, make a Genius Bar appointment to have the computer tested. Supposedly there is no charge for testing. Use 2nd link if not near an Apple Store or aren’t in the US.
Genius Bar Reservation US
Authorized Service Provider

Spontaneous startups and shutdowns

Ever since I got my G5 in 2004, I've had spontaneous startup/shutdown problems. I will wake up in the morning or come home from work and find the computer on and at the login prompt (I have set no such predetermined startup time.) Or, I'll be working and all of a sudden it powers down and then powers back up (it will bring me back to the same screen and what I was doing), but after repeated occurrences of shutdown/startup, usually in short succession, it will permanently shut down, requiring me to shut off the battery backup into which it is plugged to reset the whole system. Then things settle down for a while. Then a month or two later, it will go through another bad spate of spontaneous startups and shutdowns, almost like it just got over a cold only to contract a new one.
At first, Apple said it was a motherboard problem which they replaced; that didn't solve my problem. Then they said it was a bad video cable to the monitor and repaired that; that didn't solve my problem, either. They asked if I had any peripherals (printer, scanner, external HD) hooked up and said such items can cause erratic behavior (to which I felt like asking "then why do you manufacture your computers with ports in them so users CAN plug in other devices?") I've given up taking it to them because I can't make it replicate its erratic behavior and unless they see what it's doing, they can't do anything about it (and I don't think they really believe me, anyway...)
I've reset my PRAM. I've reset my SMU (actually that happens every time I shut down the computer because I shut down the battery backup every time to prevent unsupervised morning startup.) I've run Disk Warrior. I've checked and confirmed my power source. I've literally unplugged everything (and I mean EVERYTHING) and re-connected all components. All to no avail. I even have video of it happening because Apple doesn't believe what I'm describing. Is it possible that my computer has been infected and is one of those "slave computers" that hackers use to do their bidding? I've wondered about that...
Has anyone else experienced this?

It almost sounds like a bad UPS.
Have you tried bypassing the UPS? What is the rating of the thing?

Help with white screen on startup PLEASE!

My new imac is only showing a white screen on startup. I am not really confortable with mac's yet to start trying a bunch of different things, I did try a restart where you press four buttons (p and r restart I think).
I made an appt. tomorrow for the mac store. My question to you is, is this a hard drive issue. I have read a little that others have had this problem...did you loose everything on your hard drive?
Thanks guys,
Michelle

To add to the conversation, my iMac has decided not to start up any further than the grey screen with apple logo and scrolling symbol. I haven't a clue what to do with it!
I tried doing a safe boot but that didn't work. I then tried to access the disk utility repair but i upgraded the operating system on my comp to tiger so i don't know if i should be using that cd or the one that came with my computer thus old operating system.
If anyone could shed any light on this i'd be most gratefull.. i hear reports of needing a replacement hard drive.... nooooooooooooo

Startup and shutdown of 11i Services in windows

Hi friends, I am new for windows.
how can we startup and shutdown of 11i instacne under windows.
can we do it through services screen
or
can we do it through scripts as we do it on Unix/Linux
which is the best method

Either way is fine. Use the method which you feel if more comfortable to you. But I would suggest keep using scripts, as in future if you move to other platform you will not get surprised.
Thanks
Sundeep
http://troubleshootingappsdba.blogspot.com

MacBook Pro starts then the apple logo comes up and it looks like it want to continue then a white screen comes up and stays

I purchased a refurbished MacBook Pro (MACBOOK PRO APPLE MD385LL/A)
I did go to newegg and purchase / install 16 GB of RAM
It worked fine for the first week or so, now   I shut down and when I restart - it starts - then the apple logo comes up and it looks like it wants to continue   - then a white screen comes up and stays.
This just started.
I got this fix from on line
Shut down the computer.
Plug in the MagSafe power adapter to a power source, connecting it to the Macbook if its not already connected.
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
Release all the keys and the power button at the same time.
Press the power button to turn on the computer.
It works most of the time   How do I fix this permanently?

Can you try putting in the old RAM to see if the problem persists?
Also see
Mac OS X: Gray screen appears during startup
https://discussions.apple.com/message/24477090#24477090

Using launchd to send an email on startup and shutdown

Hello All !
I'd like to get an email whenever my Mac starts up and shuts down, since I have to leave it unattended for quite some long periods of time (and even with the help of a UPS, power goes out anyway...). My Mac runs under Mac OS X Lion.
I found some help on the Internet, mainly from this page : http://www.syntaxtechnology.com/2009/06/email-on-shutdown-and-restart/ , which applies to Linux, and hoped it could work on Mac OS X (I thought at first I could just drop a script in something like /etc/init.d/ or /etc/rc.d/rc5.d but well... we have launchd instead...).
The first method listed in the page above worked well, but sends an email only on startup (for a reminder: you add a line that starts with @reboot in your crontab, and a command that sends directly an email).
I then tried to adapt the second method to Mac OS X, and succeeded partially: I wrote a small script based on what was shown on that page (a start and stop function, start gets called when the script is started, and stop gets called based on a trap on various kill signals, with an infinite wait loop: see below). I also wrote the plist file, loaded it in launchd and rebooted my Mac several times to test everything.
I get an email on each startup (yeah!), but the shutdown mail gets sent only at the next startup. So I guess that postfix gets killed by the shutdown process *before* being able to send my shutdown email :-(
So here are my main questions, if someone can help me:
1. is there a way to precisely call a script during the shutdown process, meaning giving it a priority so it gets called before postfix dies ? (like the rc directories and the naming conventions (KnnScriptName and SnnScriptName) found on some Linux/Unix).
2. is it possible to do that with launchd ? if not, what would be the Mac OS X sanctionned way of doing this ?
Other things:
3. my shell script writing ability is kind of rusty, so maybe I made some "very bad shell writingTM": l'm not sure putting an infinite while loop with a 15 second pause in it is the best way of telling a script to do nothing. There might other things in there that would make an Unix guru jump out of his chair: please tell me :-)
This is my plist:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC “-//Apple Computer//DTD PLIST 1.0//EN” “http://www.apple.com/DTDs/PropertyList-1.0.dtd”>
<plist version=“1.0”>
<dict>
<key>Disabled</key>
<false/>
<key>Label</key><string>org.amarante.startshutemail</string>
<key>ProgramArguments</key>
<array>
<string>/Library/Scripts/startshutemail-launchd.sh</string>
<string>start</string>
</array>
<key>RunAtLoad</key><true/>
</dict>
</plist>
And this is the script that does the job:
#!/bin/bash
# PHL 20120604 startshutemail-launchd.sh
# Send an email on startup and shutdown (version for launchd)
# Based on script and explanations found here:
# http://www.syntaxtechnology.com/2009/06/email-on-shutdown-and-restart/
# Modification history
# PHL 20120604 v01 First version
# Environment variables #################################################
DEST_EMAIL="[email protected]"
SRV_NAME=Amarante
EVENT_TIME=$(date +%Y/%m/%d-%H:%M:%S)
RESTART_SUBJECT="[$SRV_NAME] $EVENT_TIME : System Startup"
RESTART_BODY="This is an automated message to notify you that $SRV_NAME started successfully at $EVENT_TIME."
SHUTDOWN_SUBJECT="[$SRV_NAME] $EVENT_TIME : System Shutdown"
SHUTDOWN_BODY="This is an automated message to notify you that $SRV_NAME is shutting down now ($EVENT_TIME)."
# Functions ##########
stop()
echo "$SHUTDOWN_BODY" | mail -s "$SHUTDOWN_SUBJECT" $DEST_EMAIL
return 0
start()
echo "$RESTART_BODY" | mail -s "$RESTART_SUBJECT" $DEST_EMAIL
return 0
# Main part #########
case $1 in
stop)
stop
start)
start
esac
# trap kill signals to send an email
trap stop HUP INT QUIT ABRT KILL ALRM TERM TSTP
# sleep until killed
while :
do
sleep 15
done
Thanks for your help, and any comment :-)
Paul-Henri

Thanks a lot for your answer, Camelot, even if it sorts of confirm what I suspected. Pinging a machine from an external observer is a solution, but it will also report broken links problems and not only a computer shutting down, and it raises the next tier of problems, general network reliability after individual system reliability. It's something I'll have to look at for sure.
It's weird there isn't any way to access the way the shutdown process works.
One of the commenters (#14) on the page from Syntaxtechnology had a similar problem: he added a "sendmail -q" in his script to force sendmail to go to work and service the queue before shutting down, which I can try, but he also added a delay to the stop process of sendmail, which is something I'm not sure I can do on Mac OS X (and that might disappear one day with one of the OS updates).
Unless there is a way to change the launchd.plist file for postfix and add an ExitTimeOut option in it (I found this idea here : https://discussions.apple.com/message/17229690#17229690 )
Cheers,
Paul-Henri

10.6.1 Slow Startup and Shutdown

Did anyone notice the difference between the 10.6.1 startup and shutdown times and the 10.6 times ?
I had to do a clean install of 10.6 and ignore the 10.6.1 update to get back speed in startup and shutdown.
Is there anyway to solve this.
Thanks.

I had the same problems, and I figured out the cause. It seems that somehow the ownership of my root directory (/) wasn't assigned to the root account anymore, but to myself instead. This made the kernel prelinking fail since it requires that root is the owner. This is how you solve this after launching the Terminal app:
{quote:title=terminal commands}sudo chown root:admin /
sudo kextcache -system-prelinked-kernel
sudo kextcache -system-caches{quote}
You'll have to enter your password after the first command.
Hope this helps someone, since it was really frustrating to have these slower startup/shutdown times for me.

My ipod touch is stuck on the apple logo and after a while a white screen comes up and it restarts and the same thing all over agan. this happened to me before and after a while it turns on but why does it keep on doing this?

my ipod touch is stuck on the apple logo and after a while a white screen comes up and it restarts and the same thing all over agan. this happened to me before and after a while it turns on but why does it keep on doing this?

Try connecting the iPod Touch to your computer and restore it. http://support.apple.com/kb/HT1414

My iMacG5 will only boot to white screen, gray apple and spinning gear. Help?

My iMacG5 will only boot to white screen, gray apple and spinning gear. Help?
Also not totally sure if it's an Intel based computer, but that's what I recall. Any way to check, since I can't get to About This Mac window?
It's running on OSX Leopard 10.5.4
First symptom = running slowly - then it kind of froze with color wheel spinning - thought a forced shut down would help - help power button til off, then white screen, gray apple and spinning gear.
Have tried...
1. Turn off the computer by choosing Shut Down from the Apple menu, or by holding the power button until the computer turns off.
2. Unplug all cables from the computer, including the power cord.
3. Wait 10 seconds.
4. Plug in the power cord while simultaneously pressing and holding the power button on the back of the computer.
5. Let go of the power button.
6. Press the power button once more to start up your iMac.
Then try booting from your install disc again.
- No change
And...
Booting From An OS X Installer Disc
1. Insert OS X Installer Disc into the optical drive.
2. Restart the computer.
3. Immediately after the chime press and hold down the "C" key.
4. Release the key when the spinning gear below the dark gray Apple logo
appears.
5. Wait for installer to finish loading.
- The fan just got louder.
Thanks for your help.

You need to do an Erase and Install or an Archive and Install depending on whether the hard drive is OK or needs to be reformatted.
Start by booting from your Leopard DVD. The rest is just following directions.
How to Perform an Archive and Install
An Archive and Install will NOT erase your hard drive, but you must have sufficient free space for a second OS X installation which could be from 3-9 GBs depending upon the version of OS X and selected installation options. The free space requirement is over and above normal free space requirements which should be at least 6-10 GBs. Read all the linked references carefully before proceeding.
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, Leopard or Snow Leopard.) After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer. Now restart normally.
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. 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.

My imac starts up with a white screen, gray apple and spinning gear and is frozen on that screen. What can I do?

my imac starts up with a white screen, gray apple and spinning gear and is frozen on that screen. What can I do?

Start your iMac with the original DVD that camera with the system. Then open disk utility and repair your hard drive, also repair your permissions.

Extended white screen on startup and shutdown?

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