Hardware :: Won't Boot Unless It's In Safe Mode / Can't Find Option
Dec 18, 2008
My iMac won't boot unless I boot it into safe boot. It won't even boot from the Leopard disc so that I can repair the disk and the permissions. Every time it starts up the screen would dim and then I get the message that I need to hold down the power button and restart the computer, which I believe is a kernel panic. I get this same message when I try to boot from the Leopard disc. I've tried repairing disk permissions while in safe boot and it fixed the permissions but still no luck when I tried a normal boot. I've tried replacing the RAM hoping it was faulty RAM as well as changing the slot the RAM was in and that didn't work either. How come it will boot in safe mode but not normally? I also ran Apple Hardware Test and it said everything appeared to be ok.
The iMac is a 17" Intel Core Duo, 1.83 Ghz with 1GB of RAM.
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Apr 13, 2012
Been having probs w Mac Pro w Lion seeming to hang on shutdown/restart. Have 'reopen windows' unchecked in prefs.  Was able to run through safe mode boot once but now seems to hang about 20% in everytime.  Have had to do shutdowns w power button (I hate that) or /by ctrl-option-command-esc Boot single user run rack -fy says 'apparently ok'Mount -uw / reports removed 10 orphaned or unlinked files and 10 directories?
Info:
Mac Pro, 2xDual2.66, 4GB, GeForce 7300 GT, 23" Apple LCD, Mac OS X (10.5), G4 Cube, Rev A/C iMac, NeXTCube,PwrMac8500,Quadras,SE30s,MacPlus
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Sep 3, 2014
My iMac24" can't booting in normal mode, but booing in safe mode only.
how to boot up in normal mode. If I restart the system, it is showing the apple logo and not going to Finder.
Info:
iMac, maverics
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Jun 5, 2014
My Mac Pro main boot drive us encrypted. I booted into recovery mode the other day & it wouldn't let me boot back o my main drive. Now upon start up I can't enter either recovery mode nor safe mode nor chose the main drive to boot from. I'm absolutely stymied in what to do.
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Apr 6, 2012
I have been unable to restart me computer after a software update (White screen/apple logo/spinning wheel continuously). I have tried to start up in safe mode (holding down shift key) but it hasn't worked.
Info:
MacBook, Mac OS X (10.4.6)
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Jun 11, 2012
I have a MacBook 4,1 with Intel Core 2 Duo processor 4GB Ram. It is taking over 10 minutes to boot up past the gray apple screen when I turn it on. First I cleared the PRam (?) then I checked the disk using Disk Utility Verify, and it said the disk needed repairs. So I ran the disk repair and it said it was unable to fix the errors on the HD. Â
I did a little research and tried booting into the Single User mode, then running /sbin/fsck -fy. It said that it found errors but could not fix them. I ran it two more times as suggested and got the same result each time. I then tried rebooting and now instead of taking 10 minutes to boot up, it takes about 5 minutes on the gray apple screen and then just turns off. I started in Verbose mode to try to troubleshoot the error and it appears the last thing to come across the screen before power down is a message "Apple Yukon 2: RxRingSize <= 1024....etc".Â
I decided next I would run the Apple Hardware Tester. The test came back with an error code "4SNS/1/40000001:IG0C-0.265". I am very good at searching the web but I could not find any errors that had the IG0C or IGOC or any combination at the end, but plenty of 4SNS/1/40000000(1) errors with different endings. From what I can tell people are saying anything with 4SNS/1/4000000 is a logic board failure, but this computer was literally just booting this morning until I did the /sbin/fsck -fy.Â
Info:
MacBook, Mac OS X (10.5.6)
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May 17, 2010
I have a 08 MacBook pro (not unibody) and it is now not booting up. I recently installed a Hitachi 500gb hard drive on the computer and restored through time machine and it worked fine for about 2 weeks and now wont boot and I'm wondering if its probably the hard drive. When I click power the light on the front of the computer will come on and it will sound like it is about to boot then a clicking noise seems to come from the computer and it instantly shuts off. I have gotten it to turn on a couple times since it happened by slamming the comp on the bed then for some reason it will work but as soon as I shut it, it wont turnback on. Any ideas?
Oh and PS the screen never comes on and can't boot in safe mode.
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Apr 22, 2012
I have a Imac PPC with a 2Ghz processor and 1GB of Ram. I am running leopard 10.5.8. Recently i woke the PC from sleep mode to find a blue screen with only the cursor working. Using the internet, I determined how to get the PC booted in safe mode. I have used all the disk utilities at my disposal along with onyx and cocktail to try and fix what I believe is a startup problem. I hae booted the PC in single user mode and tried the fskc codes, which i believe is just the same as the disk utility. Based on my computer all permissions are correct and there is nothing wrong with the HD. The PC still will not boot normally. I have even done an archive and re-install of Leopard.Â
Info:
iMac, Mac OS X (10.5.8)
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May 20, 2012
As of yesterday my Mac book pro will not start up. It will not go past the gray screen with the apple and spinning timer indicator. When I try and start up holding shift to enter safe mode it will not start up either. I have tried turning It on and off many times. I am not sure what to do or what the problem might be. Running OS 10.7.
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Jun 6, 2012
How do I boot in a safe mode my iMac? I hold down the shift key after the whistle when turns on but it take me to the normal screen.
Info:
iMac, iOS 5.1.1
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Jul 5, 2012
MY MBP is giving me the "NOT" sign on start-up. This comes after initially displaying the Apple logo. This MBP had a new logic board installed by Apple just two weeks ago -- and I know I can take it back but I'd like to fix this myself. I put in a different hard drive after getting the MBP back. It has worked fine for several days. Don't know if these points are relevant, but:
1. First thing I noticed today is that neither of the USB ports would read a flash drive. The port would, however, work mouse and keyboard.
2. The initial non-boot episode took place when I had external hard drives daisy-chained in via Firewire. But, again, this had worked previously, as recent as this morning.This may be significant:
3. The last tasks performed on the MBP were -- for the first time -- to edit video in FCE, make DVD in iDVD, burn IMG file.
4.I have connect this MBP as a target FW drive to another MBP and run "disk verify" and "disk repair" in Disk Utility. It says the drive and permissions are okay.
5. I have booted to a copy of Disk Warrior (latest version, version 4, I believe) and rebuilt directories and files along with verify/repair permissions (everything DW will do). And when re-starting, it still won't boot.
6. When I boot off Snow Leopard DVD and run Disk Utility¦"verify disk" says "the volume appears to be ok¦.when I "repair disk" it reports "Volume repair complete." and "Updating boot partitions for the volume as required."
7. I'm able to boot in SAFE MODE, but when I try to restart in normal mode, it won't boot (so nothing was automatically fixed)What can I do in safe mode to address my problem?
Info:
MacBook
Pro, Mac OS X (10.6.8), A1260 2.4GH 2GB Ram 750GB HD FCE4
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Jun 29, 2014
OS X 10.9.3 2.53 Ghz Intel core duo 4 GB 1067 MHz DDR3
MacBook Pro 15" mid 2009
Issue-will ONLY boot in safe mode
Background-previous keyboard issues caused by spillage. 3rd party keyboard in use
Action taken - recent 3rd party apps deleted: First aid disk utility checks okay (perms & disk)3rd party keyboard was working fine until 2 days ago.
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Oct 11, 2007
We have an older model G5 Dual (no Intel Core) at the office that we tried to install CS3 on. I told them that first we would need to upgrade from 10.3.8 to 10.4.10, which they did, and then installed CS3. But they did it without running the disk utility repair permissions after the OS software installation, as I have routinely done with my Mac Mini at home, after the horror I experienced with the 10.4.9 upgrade. For a couple of days, the computer ran fine, but I noticed an increase in the fan spinning up yesterday afternoon, then quirky keyboard things -- like I'd select an item with point and click, and it would highlight everything else near it, I'd go to quit an application and it would ask if I wanted to quit all applications.
After backing up my current InDesign work files on a flash drive (but not the whole darn art folder), I rebooted and it came up in Safe Boot mode 6 times without holding any key down. Attempts to boot from disk have failed, even with holding down the "C" key. It's also not allowing us to type out full passwords at the log-in screen... you start typing and after you hit four digits, it clears, then only allows two digits. How we can:
1.) Force boot from disk, and,
2.) Hopefully fix with disk utility whatever wonkiness is occurring?
Information:
Mac Mini, Intel Core & G5 Dual (not Intel)
Mac OS X (10.4.10)
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May 11, 2010
I am using a Late 2009 Mac Mini. This afternoon I did a software update, it was 4 programs that were updated. I didn't take a look at what was updated, which was a mistake, I know. But anyways, they installed fine, and the Mac rebooted, it got to just before the user select/login screen and hanged there. I was able to move the mouse around, but nothing else, and after a long period of time, I powered off my Mac, and now it is hanging at the Apple logo.
I tried booting into Safe Mode, and the grey progress bar would appear but and get half way through and then disappear. Next I tried inserting the Install DVD, hold down C while it was booting up but that wouldn't do anything.
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Nov 27, 2008
I have a Macbook which just reboots constantly, you see the apple, the little whirly graphic that tells you it's starting up, then off it goes, chimes again and the same thing over and over again. I can't start up from the Install disc, it just keeps rebooting, I've zapped the PRAM not made any difference, won't start up in safe mode either. I've run disk uitility on it from another mac (Target Mode) but it said the disc didn't need repairing, and still it keeps on re-booting, over & over & over....
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Sep 29, 2010
I wonder, if there is a possibility to tell OS X to always boot in Safe Mode. Because often, after a power failure, the mac mini boots automatically how he should, but then he crashes while booting.
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Nov 22, 2010
In an attempt to fix a sibling error showing in disk utility, following online help using fsck, my iMac will no longer boot. It just gets stuck on the grey screen with the circle constantly spinning. It won't boot into safe mode or from the osx disk. It will boot into verbose and fsck mode though.
When I try to boot from disk by holding c it just constantly restarts. I have nothing on my computer that I don't mind losing and I have tried everything on the apple support.
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Apr 29, 2012
I am running OSX Lion latest version on my Macbook Pro 4,1 and can't get the thing to boot from any source. Always get's stuck at the grey screen with apple logo. Have tried all the following...
- Straight Boot (power on)
- Boot via Recovery HD (hold option on bootup then select)
- Boot via Safe Mode (Holding Shift on bootup)
- Boot via Safe Mode Verbose (Shift, Command, V)
- Boot via bootable Lion USB Key (Hold option, and choose the USB drive - not the same USB key works on my other macbook pro)
On every one (except verbose) it just get's stuck on the grey screen with spinning timer thingy. I have done PVRAM reset, SMC reset and have reseated the RAM and all to no avail. I'm pretty sure the problem was caused by removing battery at wrong time (device not responding after sleep mode started and I plugged in power - should have been more patient!)
I have a Time Machine backup but it's a bit older than I thought and very much want to get my newer photos off it before rebuilding - not that Time Machine would work in current state anyway. So what are my remaining options? Will I have to open it up and remove the HD as next step or is there anything else left to try? Can I remove the HD and connect it via a USB caddy to my existing Mac to recover info (hard drive spins and sounds ok to me)?
Info:
MacBook Pro, Mac OS X (10.7.3)
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May 9, 2012
Unable to boot into safe mode. Not hearing chime. Holding shift key not working.
Info:Mac Pro, Mac OS X (10.7.3)
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May 12, 2012
While I have no problem booting into the Startup Manager using the command key with my wireless keyboard I'm finding it impossible to boot into Safe Mode using the option key.
Info:
Mac OS X (10.7.4), OWC Mercury Elite Ext Drive
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Jun 30, 2014
Macbokpro 2.2ghz i7 - 4g ram...10.9.3
All of a sudden our MBP will only boot in safe mode. After reading about this there was some answers about the shift key being stuck which makes sense since i couldnt login to my user because its a 5 lowercase PW. i got a usb keyboard and with the shift key pressed down i can now enter my lowercase PW. I took both shift keys off and cleaned under them, there was barely any dust even. Still stuck in shift somehow. i tried to reset the PRAM by booting with Option-Command-P-R with both the MBP keyboard and the USB keyboard with no success. it only brings me to OS X Utilities where i can restore from time machine, Reinstall,
When i upgraded to Mavericks i did make a USB installer of it. I cant remember if 10.9.3 is the version i downloaded. When i check the USB i know i made it on Feb 12 2014, the day i downloaded it, and its version 1.3.40.
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Sep 2, 2010
This iBook G4 will not boot. I can boot it into safe mode, but that is about it. I have tried resetting the PRAM, to no avail. It cannot even boot off of an OSX disc. When I try to boot it normally, it just shows the Apple symbol, but no progress wheel thing spinning. When I try to boot it normally, it appears as if the hard drive is not being read from/written to, because it is dead silent, but when I boot into safe mode, you can hear the HDD noise. When I booted into safe mode, I checked the HDD's SMART status, and it says "Verified," so I do not think that the HDD is at fault. However, it still has its original HDD from 2004.
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Sep 7, 2010
Samsung TL350
OS X 10.5.8, MacBook
I cannot get my camera to be recognized by my computer when I plug it in and the computer is normally booted.
* If plug the camera into my MacBook, Image Capture and iPhoto will not recognize it.
* If I plug the SD card into my computer with a card reader, the card will be read just fine.
* The camera works on two other MacBook Pros
* The camera will be found on my MacBook if I boot into Safe Mode
* The camera is found in System Profiler when the computer is normally booted, however, the information provided is limited.
* The camera is found in System Profiler when the computer is Safe Booted, and the camera shows the full amount of information about the camera
When I open the system log and then plug the camera in, I receive the following:
Sep 6 11:46:14 JoAlDe kernel[0]: USBF: 958.769 AppleUSBEHCI0x27b8800::Found a transaction which hasn't moved in 5 seconds on bus 0xfd, timing out! (Addr: 3, EP: 0)
Sep 6 11:46:19 JoAlDe kernel[0]: USBF: 963.770 AppleUSBEHCI0x27b8800::Found a transaction past the completion deadline on bus 0xfd, timing out! (Addr: 3, EP: 1)
From what I understand, this means that the computer is unable to see that the camera is a Mass Storage Device, thus it times out and is unable to boot it as such.
So I set up my system with the USB Prober and the associated logging file.
I ran the USB Prober on level 7 while I connected the camera.
I know zilch about reading and comprehending any of the results except this snippet really stuck out to me:
It occurred twice more:
3635.575 [5] Finding driver for interface #0 of Samsung Digital Camera, matching personality using com.apple.iokit.IOUSBUserClient, score: 104999, wildCard = 5
3635.575 [6] Matched: idVendor (8107) idProduct (4152) bcdDevice (256) bConfigurationValue (1) bInterfaceNumber (0)
3635.575 [6] Didn't Match: nothing
Just looking at this particular result, it looks like the computer is unable to identify what exactly USB device is being plugged in.
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Oct 3, 2009
Powebook G4 won't boot up. Safe mode doesn't work. Reset pram. Went onto single user mode. At first there was a modification and then I ran it a second time until it said HD was ok.
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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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Aug 25, 2014
I have a macbook pro 15-inch, Early 2011 running osx 10.9.4. I have a SSD hard drive that i installed myself a year ago and hasn't shown any defects. Its a 120 gb OCZ-AGILITY3.Â
My macbook will only boot in safe mode nowadays. I have done a complete erasion of my hard drive and installed osx mavericks twice already. After the installation the computer will safely go to the desktop. But if i then do a reboot it won't get further than after the first apple logo, sometime the turning wheel will pop up, before turning off and trying again. i have tried resetting PRAM, I have tried resetting SMC, i have tried avoiding SMC (with big fan rate), but all with no success.Â
I have done a complete hardware test (the longer one) and it showed "no troubles found".Â
My guess is that the problem is with the battery. My computer won't run anymore without the adapter, when i pull the adapter out it either stays on for a while before just turning off. Without having it plugged in it won't start. Is it possible that during normal start up there is some kind of communication with the battery that can cause this?Â
I ran a diagnostic shown in this thread (Will only boot in safe mode) and included it in this post.
Start time: 17:07:42 08/25/14Â Â
Model Identifier: MacBookPro8,2
System Version: OS X 10.9.4 (13E28)
Kernel Version: Darwin 13.3.0
Boot Mode: Safe
[Code] ....
Info:
MacBook Pro, OS X Mavericks (10.9.4), 15"
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Aug 30, 2014
I am trying to print in 'draft mode' with my Epson xp 215 and I can't find this option under 'Media Quality'.
Does the printer misses this option or is it something with the apple software.
For the rest it works really fine.
Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Feb 25, 2010
I was troubleshooting an issue my brother was having with his Macbook over downloading files, installed Firefox for him, ran Apple updates and while the updates were installing the computer froze. He restarted it, and on startup he got a circle with a slash through it. I've been googling and checking forums and I tried booting into safe mode (Shift at startup, I believe?), and putting in the OS X disc that came with it and booting from that (C at startup?) but I get nothing. It just goes from the Apple with the loading circle, to the picture of the slash circle. I'm not really sure on the specs of the computer or the OS version, as I'm rarely on it.
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Nov 10, 2010
my name is SPC Sanders. I am a forward observer currently deployed to Afghanistan. I've owned a Macbook Pro for a couple of years.
About three weeks ago, I made the stupid mistake of attempting to run iOSX so I could dual boot with Windows 7 (all stuff I acquired while I was home on midtour leave.) The install seemed to be ok, however, I noticed immediately I could not make any changes to settings as my administrator password was no longer working. (Administrator is my only account on this laptop.)
At fear of losing my operability, I simply did not power down for that whole time. However, I recently moved bases, and alas, the time came to power down.
Upon bootup, I get a constant spinning wheel. I left this on for a couple of hours just to be sure, then realized it was a lost cause. I tried booting in safe mode, and I got some kernel panic. It says a bunch of stuff about debugger calling the panic, bla bla bla, but the thing that caught my eze was Mac OS version not set yet.
After booting in safe mode, getting that error, and powering off, my laptop will boot into a grezish blueish lightblueish (alternating) type of screen, which sometimes has the spinning wheel, sometimes not. Again, nothing.
I understand I will probably need my OS disc to fix this, but I didn't bring it with me. Am I SOL?
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Jun 29, 2012
Is it better to boot in Safe Mode in Lion to repair permissions?
Info:
iMac, Mac OS X (10.7.3), iMac Late 2009
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