OS X :: Freeze On Blue Screen / Can Only Start Up In Safe Mode
Sep 21, 2008
I woke up this morning and my iMac G5 (w/ Leopard) was frozen. I restarted it manually, but it would freeze on a blue screen without loading the OS. It can start up fine in safe mode, but that's it! I've tried repairing permissions and zapping the PRAM - any other ideas?
What can I do in Safe Mode that might fix my comp? I haven't recently installed any applications, and I have all "open at login" items turned off.
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Dec 8, 2008
My iMac G5 froze. I restarted it manually, but it kept freezing on a blue screen without loading the OS. It can start up fine in safe mode, but that's it! I've tried repairing permissions and zapping the PRAM.
Finally I resorted to an Archive & Install. That didn't work so I did a clean install but that didn't help either. After having done everything under the sun to it to get it to work, it will still only start up in safe mode. I even tried starting up off each of my two external fire wire drives with no luck (it froze on the fire wire screen with both drives - a Maxtor and a Western Digital). I am thinking that something on the mother board has died so that normal booting is prevented but safe mode booting is allowed.
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Jun 4, 2014
my ibook g4 hangs on blue screen except in safe mode
Info:
iBook
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Jun 18, 2009
Tried everything from archive and install (wouldn't read disk2 until the 9th try and ended up with 9 system folders). Then tried an Erase and Install. Still it refuses to boot. Get's hung up at the blue screen. Will only boot in safe mode. Now for the last few days even the startup chime is missing. Tried PRAM and NVRAM resets. no help. Won't boot from DiskWarrior boot disk either. Just hangs
iMac Specs:
Machine Name:iMac G5
Machine Model:PowerMac8,2
CPU Type:PowerPC G5 (3.0)
Number Of CPUs:1
CPU Speed:1.8 GHz
L2 Cache (per CPU):512 KB
Memory:1 GB
Bus Speed:600 MHz
Boot ROM Version:5.2.5f1
Serial Number:QP52604RSDU
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Sep 6, 2009
When I turned my iMac on this morning (iMac G5 PPC 10.5.8) it went through all of the "normal" steps (gong, grey screen, apple logo, progress wheel, blue screen) and stopped at the blue screen. Thinking it was just a fluke, I shut the machine down and restarted, only to have it stop at the blue screen again. After disconnecting everything going into the iMac except the keyboard and mouse, I attempted to boot into safe mode but it stopped at the blue screen again.
Next, I flashed the PRAM (big gong, single quieter gong) and afterward it came to the blue screen. I reattached my external drive and selected to boot from a 2-day old backup. Using the backup I was able to log into both my regular account and my "test" account (without login items). I still cannot login (except to my external drive backup).
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Nov 30, 2010
I tried fsck -f fsck -y multiple times, booting in safe mode, zaping the pram and all that stuff, nothing as worked. I don't really care about how to fix it but I care more about, Is there any possible way I can get files off of the macbook even though it wont boot. Like is there a way for another computer (windows or mac) to pick it up so I can transfer files? What accessories will I need?
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Mar 22, 2012
I have a 2.0 GHz early 2005 Power Mac G5 (7,3) that won't get past the light blue screen at start-up. I've tried everything - reset the PRAM, Apple Hardware Check (on overnight loops, everything came back OK), fsck (all OK), repaired my HD and permissions on it, and then erased the drive using Target Disk Mode and another Mac, and attempted to reinstall OSX from the install disk that came with it (with OSX Tiger). I've tried switching out the RAM with no luck.
The only thing I haven't tried is a new video card (the installed one is an ATI Radeon 9600). Here's what it does: powers on with the usual chime, then moves on to the white Apple screen, the wheel spins, then it moves on to a darker blue screen, then it finally moves on to a lighter blue screen with an arrow, and it just stays there. It will boot into safe mode (pressing shift), but I can't even upgrade to Leopard in safe mode, much less figure out what's wrong.
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Nov 28, 2009
I've been using my Intel Mac-Mini without a hitch for three years now. Previously it had been plugged into a Samsung 32" LCD TV, but I've just swapped it over for a 1080p Panasonic 37".
Now when I turn on the mac it takes a long time to boot up and then eventually settles on a blue screen. The mouse pointer is visible but nothing else. I've tried using a dvi to vga adaptor and an HDMI to vga cable and the same thing happens.I tried a 15" Samsung monitor and the same thing happens.
If I boot in 'safe' mode it allows me to type in my password but when I try to log in it fades to blue and then returns to the log in page.
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Mar 8, 2012
I'm getting the gray screen when I startup. I tried using the install disc to repair the utility, but it said it cannot be repaired. I had to use a plug-in mouse instead of my normal wireless mouse to get the startup disc out on a restart. I want to now startup in safe mode, but holding down shift during startup with my wireless keyboard doesn't work. Do I need to have a plug-in type keyboard for this function to work? Can you backup files using safemode?
Info:
iMac, Mac OS X (10.6.3)
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Jun 20, 2009
I have a new IMac 24" and it has started to freeze and not respond. At one point it would only work in Safe mode. After working with Apple for several hours, we did a complete ease and reload of the OS. It would only install the first disk. We called Apple again and made an appointment at the local store. Brought it in and it booted right up. He even reinstalled the OS for us. We brought it back home, plugged everything in and it worked. It then started having the same issues after 4 days. I forced shut it down and unplugged everything. Plugged in the keyboard and mouse and everything works. The only think we have is a Lexmark printer - X5320. The strange thing is everything was working fine for 3 months and with my Mac Mini before that. Could it be a power issue? It is plugged into a APC UPS. All hardware tests pass.
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Dec 12, 2014
Yesterday everything was fine but today my macbook freeze/stuck during the boot.
I've done this:
- check + repair permission (nothing changed)
- check + repair disk (nothing changed)
- tried safemode (doesn't boot)
- resetting pram with cmd+opt+p+r (nothing changed)
- boot in verbose mode, shift+cmd+v and after "waiting for DSMOS" appear disk0s2: I/O error. (now 6 times, but it will continue I think )Â
Info:
Mac Pro, Mac OS X (10.0.x)
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Feb 12, 2008
Leopoard 10.5.2 - Quad Core Mac Pro.
I'm trying to start up in safe mode, per a recommendation from Objective Development, for a Little Snitch upgrade. I'm following these steps perfectly, and I see no indication that I'm running in safe mode. Of course, I've never seen safe mode, so I'm not sure what it looks like, but I'm guessing I ain't in it because I never see the "Safe boot at the login window".
Quote:
To start up into Safe Mode, do this:
1. Be sure the computer is shut down.
2. Press the power button.
3. Immediately after you hear the startup tone, press and hold the Shift key (the Shift key should be held as soon as possible after the startup tone but not before).
4. Release the Shift key when you see the gray Apple and the spinning gear. Please be patient, booting in Safe Mode may take some while.
During the startup you will see "Safe Boot" on the login window, which appears even if you normally log in automatically.
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Apr 3, 2012
Did a Shift - Command-V and the black screen showing all the startup steps appeared and it all looked good except: AFL Alart Sockwed cant update and INIT Reboot transmit failed. All else looks good. I have tried this 3 times and never go past that point. Then the screen turns off white like it does when it starts normally before the apple appears and the last time the screen went black.
I have tried starting with just the Shift Key and computer starts up but not in safe mode. I have tired starting with the OS X disk and the C key and it will not recognize the disk.I used the #1 disk since the instructions are printed on the disk. Did not work so I tried disk 2 and I get a menu to start the OS or tools. If I click on either one the screen goes white and stays that way.
computer starts fine and provides a login window, and then the desktop screen with screen saver pictures in perfect color. As it goes through starting programs it starts the same programs that is had open when the computer originally crashed. Even when I close them, before it locks up again, and I am forced to restart the same programs open up to the same place. Its like the computer is frozen in one location and will not go beyond that point. Eventually the screen turns white and sometimes black and sometimes gray.
Tech support thought it was the video card, put a new one in but did not fix the problem and then said it was not that but that it was the monitor. I said that did not make sense since the monitor and desktop icons and pictures are beautiful and clear. They then said it was the inverter board on the monitor and Apple only replace the whole thing. I purchased an inverter board and replace it. No change. The tech person said that the computer works find without the monitor connected - I will see if that is correct next. Isn't that a more systimatic testing procedure then trying parts to see if it works? Oh I did do the complete long hardware test. Took about an hour and it passed! Isn't this strange?
Info:iMac, Mac OS X (10.5.8)
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Apr 20, 2012
my Imac takes 5 minutes to start , most of the time it is a blue screen....
Info:
iMac, Mac OS X (10.6.4)
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Jun 2, 2014
I have a mac book pro 17. I have 2 logins. on the main one it takes a long time and only the top bar appears. the normal icons dont appear. when i move the mouse i just get the spinning wheel and i stays like that. you can not operate anything. you have to hold power button to turn it off.Â
- if i try to log in in safe mode it does not owrk either.Â
- if i sign in as another user in safe boot, things seem to work. i suspect something is not sitting right in the main sign in.Â
I have checked the disc and it says it is fine. Â I have tried to back up but i does not seem to work, it just seems to hang too.Â
Info:
MacBook Pro, OS X Mavericks (10.9.3)
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May 12, 2012
My 2011 17" MBP won't with OS X Lion won't start up in safe mode...
Info:MacBookPro, Mac OS X (10.7.4), 2011 17" MBP with 8 Gigs of Ram
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Jan 7, 2009
My iMac G5 (running 10.4.11) freezes at the blue screen, after recognizing the mouse, but before the login window. Some form of energy saver must be working because after the blue screen dims, moving the mouse will brighten it.
Steps I've taken:
Hardware test - everything passed (RAM, logic board, airport, display, etc...)
Zeroed the computer (7 times) and fresh reinstall
I CAN boot up in Safe Mode, Single User Mode, and Verbose mode. I can boot from CD, Knoppix CD, and into Target Disk mode (thank god for this MacBook I'm on now...)
Here's the system log (I've edited in comments and out personal info):
// reboot and power on
[SIZE="2"][FONT="Tahoma"]Jan 6 21:19:02 users-imac-g5 shutdown: reboot by user:
Jan 6 21:19:02 users-imac-g5 SystemStarter[102]: authentication service (110) did not complete successfully
// gray apple screen with spinning progress bar
Jan 6 21:19:35 localhost kernel[0]: standard timeslicing quantum is 10000 us
Jan 6 21:19:35 localhost kernel[0]: vm_page_bootstrap: 124630 free pages
Jan 6 21:19:35 localhost mDNSResponder-107 (Mar 20 2005 20: 31:47)[38]: starting
Jan 6 21:19:35 localhost kernel[0]: mig_table_max_displ = 70
Jan 6 21:19:35 localhost kernel[0]: 89 prelinked modules
Jan 6 21:19:35 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Jan 6 21:19:35 localhost DirectoryService[36]: Launched version 1.8 (v346)
Jan 6 21:19:35 localhost kernel[0]: The Regents of the University of California. All rights reserved.
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Jan 18, 2009
I turn the machine on and the apple icon comes up and the thinking gear comes up but It won't go anywhere else I can't even get into safe mode.
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May 15, 2012
I've tried the safe boot but seems it is not working. I do need to recover my files.
Info:
MacBook Pro, Mac OS X (10.6.8)
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May 7, 2012
My macbook (early 2008 model). Looks like my disk drive isn't working correctly; I put in a new hard drive. I went to reinstall Snow Leopard then upgrade to Lion. Ever since then my mac only seems to work in safe mode. I used my imac to load snow leopard (with firewire); and downloaded lion from app store. Is there a way to wipe clean and start over? There is nothing on the computer that I need. I keep all my important files on an external hard drive. My big concern is I don't know how to do it and second since I don't have a disk for lion will just going back to app store allow me to re-download or will I have to pay 30 bucks again.
Info:
MacBook (13-inch Early 2008), Mac OS X (10.7.3)
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Apr 4, 2012
in safe mode works normal, but usually start after a while leopard hangs, I've done hardware test dvd and normal passes through the test okay what do I do
Info:
MacBook, Mac OS X (10.5.8)
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Jun 25, 2014
I've been trying to partition my drives and install Windows on my late 2012 imac. I last adjusted my partitions using disk utility and now receive the prohibitory sign on start-up and cannot boot up in safe mode; pram reset; type commands in single user mode. Running on Mavericks OS.
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Jul 30, 2010
1. When closing the lid or pressing the power button the computer freezes, the fans start spinning fast it stays like that until it drains the battery. This happens every time.
2. Start-up times are very long, like 3 or 4 minutes. This also happens every time.
3. Now after a fresh snow leopard install it doesn't even start up completely, as it stays showing a light blue background and I can hear the music of the introductory animation.
4. Also, the keyboard is unresponsive at the login screen, but the mouse cursor moves and the display goes to sleep normally. Clicking anywhere with the mouse also produces no effect.
5. It seems to work OK in safe mode.
The macbook worked ok with the factory installed Tiger. The SL DVD is OK, as its installation has been tested on another Mac. The machine's advanced hardware test passed successfully. Resetting Pram and SMC did not solve the problem.
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Feb 12, 2012
Whenever i try to "shut down" my MBP, it will freeze at the blue screen with the spinning wheel (that keeps spinning like 'eternally')! Any idea how to solve the problem? I tried booting from the installation disk and repairing disk with "disk utility" but to no avail. Have also tried repairing disk permissions... Any idea how else should i tackle this problem?  Currently i can only switch off my MBP by holding the power button (forcing it to shut down).
Info:
MacBook
Pro, Mac OS X (10.6.8), 15 inch 2.0 GHZ
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May 28, 2012
Macbook pro 15 wakes from sleep mode with a blank white screen and no cursor, I can hear the computer is awake in the background as programs start up?
Info:MacBookPro, Mac OS X (10.7.4)
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Aug 24, 2010
I just go a new Macbook Pro 13' from my school (my school made it mandatory to get a mac this year) and I was installing some of my applications. Then I got the "You need to restart your computer" message. I restarted, and all i got was a blue screen with my pointer. Then after a while it says the same restart message. Also I have tried booting from the Snow Leopard Disk, but I get the same message before the actual SL installer comes up. I have been able to get the Macbook to boot in safe mode and I repaired permissions and the disk, however that does not seem to help. I have also reset the PRAM and that did nothing. I am running out of ideas... how can I fix this? I am using 10.6.4.
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Jun 11, 2012
I attempted a safe boot after receiving a gray screen w/ spinning gear. I have since gotten a blue screen.
Info:
iMac (24-inch Early 2009), Mac OS X (10.6)
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Dec 6, 2014
My MacBook is making the startup sound but goes straight to a black/dark grey screen. In other words you can see the screen switching on but it's blank. It's in charge mode, has no other external peripherals attached and it's updated to most recent OSX Yosemite.
I only purchased it in May of this year (refurbished). I have tried booting in to safe mode but again the screen remains the same. Â
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Jun 5, 2012
my macbook pro today started to freeze at logo scrren. I tried to start it up in both safe and recovery modes but it doesn't work either. I got the system to start in safe mode only once and the scrren looked like in the attached image.When I tried printing the screen instead of taking a photo with my mobile, the image appeared to be normal (without those noisy rectangles), but it wasnt. Then itried restarting but it's been impossible. As i said i tried booting on safe and recovery modes but the circle below the apple logo appèars and then it freezes again. I read about aproblem with the graphic card similar to mine in earlier models, I don`t know if it is the same problem.Â
Info:
MacBook Pro (15-inch Late 2008), Mac OS X (10.7.4), 9400M/9600MGT
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Jun 28, 2012
I have a 2009-2010 27inch iMac with OSX and software fully updated.My Mac started shutting down or going into deep sleep when left on.I've tried rebooting, power long hold, checking cords etc.I've attempted the 5 second hold after disconnecting the power cord, plugging back in and start no luck.I hear a very small click inside when I long hold, sometimes a very faint spinning sound but nothing else.The fan came on once after a start attempt but nothing else happened. I can't seem to safe start because the screen remains black.
Info:
iMac, Mac OS X (10.6.8)
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