What a heck is "safe boot"?

Hi guys -- I had to restart my iMac and when it was starting up, the light gray beckground with the gray apple logo was there as usual, however, there was a progress bar below it that hadn't been there before and it took way longer than usual to start up... Once it finished it requested me my password as usual BUT it had a line of red text saying "Safe boot"... I then entered my password as usual, my desktop was there but the volume icon at the top right corner was gone so I restarted it again and all was fine: No "Safe boot" text and the volume icon was there. So what a heck was that all about??

When you boot your Mac while holding the shift key down it loads only a small selection of the various kexts and other process which normally run in the background, together with all fonts other than the handful built into the system. Consequently many of the usual facilities, internet included, don't work. The purpose of this is to enable you to boot the computer when some background process is conflicting or corrupted (usually it's third-party add-ons which do this) so that you can diagnose the problem. It also runs a disk check on start-up, hence the slow start. On the next boot everything is back to normal.

Similar Messages

What gets bypassed in Safe Boot?

Does anyone know EXACTLY what gets bypassed in Safe Boot? I'm having trouble with a G5 that will only boot in safe mode. I have tried everything I can think of to resolve my issue, and even have a lengthy post on this forum that went unresolved. I have it narrowed down to something that gets bypassed when doing a safe boot. Any help is greatly appreciated.

Hi there,
In 10.4.x it basically loads "Safe Drivers", (Video is one thing that it could be, disabling Quartz might get around that one), loads only System Fonts, Clears some Caches, Airport is disabled, (this has been a problem a few times with a bad card),and doesn't load 3rd party Login or Startup Items. See...
http://support.apple.com/kb/HT1564
If it only does it in Regular Boot, then it could also possibly be some 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

Cube will not boot... what the heck?

I bought a cube yesterday and it will not boot. This is what has happened so far:
New hdd
installed Tiger
ran updates
restarted
ran more updates
restarted
would not load fully.
Got to Mac OS X loading screen with varying degrees of success, but it always stops loading and the blue bar freezes. Single user startup works. Safe mode a no-go. Fsck finds nothing wrong with disk. I can't eject the disc that's in there no way no how in order to reinstall OS.
Another oddity: Target disk mode says the disk is unreadable, and says it's 7.1 GB when it's 38 GB. If I initialize the 7 gig bit nothing happened.
I put the drive into an external firewire case and reformatted it but I still cannot get the DVD drive to eject.
What the heck? This puppy passed all the tests yesterday just fine! It was ready to rock and roll until this happened! I am very frustrated! Please tell me my 300 bucks wasn't wasted... I need this computer for my business.
The only thing that I realized might be wrong is that the HDD was in master mode when I first put it in. The drive I removed was in Slave mode (this was the factory drive). I have tried to boot it up in both CS and Slave mode and neither one works.

Hi! Try holding down the mouse button at startup to see if you can get the disc out. You made a calculated mistake that went wrong.
"New hdd
installed Tiger
ran updates
restarted
ran more updates
restarted
would not load fully."
You probably used Software Update to update the software and sometimes it doesn't work. You should get the install disc back in and then try an archive and install of the os. Don't run any updates until you are sure the system is stable. After you are sure it's stable you can download the 10.4.11 update HERE instead of using Software Update. Tom
Message was edited by: Thomas Bryant

Safe boot: what is this ?

hi friends,
I had a number of updates to do yesterday, so had my 13" macBook Pro running to download them and that worked all well. At the end of the updates it restarted but ever since I have the Grey Screen of Death.
Tried booting is safe mode, which seems to work as there is a bar coming under the Apple logo, but once the bar is filled after about 2 minutes the grey spinning cogwheel comes up indefinitely, leaving the screen grey. tried resetting the two abrrevaition (DVRAP or so and something else), but did not make a difference starting it up that way as it just keeps showing the spinning wheel on the grey screen.
Before I continue and reinstall from the Install DVD, would it be that the bar that is being filled in safe boot is a sign that in itself it is working? Did I give it not long enough or how long should a safe boot take?
Also, at what time time to push the SHIFT button at startup? Is it OK to hold the SHIFT button from the moment I push the power button or should I push it later?
Gratfeul for your help, thanx

Related apple articles:
Starting up in Safe Mode
Gray screen appears during startup

What does Safe Boot leave out that is messing things up?

The patient is a 2012 Macbook Pro that replaced a 2009 Macbook but to no real benefit: it's no faster and very frustrating to use. 4 Gb ram, 7200 rpm drive (the old machine swapped so much I added a faster drive to at least speed up that process. Mavericks seems to manage memory better, not as much swapping).
Symptoms:
lot of beachballs, spinners, even at login time as it tries to restore my old work session
slow keyboard entry in URL address window, slow acceptance of return key. Sometimes takes 2-2 attempts to get it to load a page
application switching is terrible, totally unresponsive sometimes, even though I can see that the CPU is idling (I have Activity Monitor in the Dock with the CPU history as the icon: 4 cores and nothing happening, maybe one of them showing any activity).
Even what I would expect to be lightweight processes — System Preferences, Terminal — take ages to load. I suspect some kind of cache corruption or other damage but have no way to verify. That's not the case in Safe Boot. Things are snappy, as I would expect.
I reinstalled Mavericks last night but no difference. I assume that would remove any kernel extensions or add ons that might have been mucking things up.
Just booted in Safe Boot and used the Guest account, things were pretty speedy, much more like what I want. Logged out of it and into my own account, things are better, very quick to load. So it seems Safe Boot leaves some things out I might be well rid of. Trouble is, I don't know what they are. Another diagnostic would be to create an external boot drive and add my home directory to see if I see any difference there. It might be slower since it's external but maybe not as bad.
How can I isolate what might be causing this?

Safe Mode disables third-party kernel extensions and other startup items.
You need to look at what you have set to startup automatically.
The first place to look is in the Users & Groups system prefs, your account, Login Items.
To delete items from the list, select it and click the - button at the bottom of the list. Unchecking the checkbox does nothing.
The other places where software can install startup items is in your user Library/LaunchAgents, LaunchDaemons, or StartupItems. In the first two, the files will be a single plist. In the StartupItems it will be a folder.
It is best to use the program's uninstaller to remove them, but you can do it manually if you want.
Once you remove them, you will have to log out and log back in.
<Edited By Host>

What does this log mean? Fresh os install still can only safe boot

*My head is about to explode.*
*Last night, I pulled my old hard drive. put in new one and did fresh install.*
*Ever confident that this would magically fix my computer.*
*I can still only boot in safe mode.*
*I ran AHT. everything passed. I have reseted every thing and reset logic board. yes only one push of the magic button*
*below is a system log from before I put in new drive.*
*however, after new drive and fresh install and still can't boot I check sytem log and still get same message:*
*Cannot use ATS Persistent Store - switching to old FODB cache code*
*Is this my underlying problem?*
*What does it mean?*
*When I try to boot up normally, I get to grey screen , spinning wheel, then wheel turns pixelly and fuzzy with random colors juist where the wheel is and the grey screen with apple logo fuzzy then black.*
*Any words of wisdom will save my sanity.*
Feb 11 16:10:32 sherrydesktop shutdown: reboot by louislevy:
Feb 11 16:10:32 sherrydesktop SystemStarter748: authentication service (757) did not complete successfully
Feb 11 16:10:33 sherrydesktop SystemStarter748: The following StartupItems failed to properly start:
Feb 11 16:10:33 sherrydesktop SystemStarter748: /System/Library/StartupItems/AuthServer
Feb 11 16:10:33 sherrydesktop SystemStarter748: - execution of Startup script failed
Feb 11 16:14:42 localhost kernel[0]: standard timeslicing quantum is 10000 us
Feb 11 16:14:41 localhost memberd72: memberd starting up
Feb 11 16:14:43 localhost kernel[0]: vmpagebootstrap: 1141505 free pages
Feb 11 16:14:41 localhost mDNSResponder-108.6 (Jul 19 2007 11: 33:32)65: starting
Feb 11 16:14:43 localhost kernel[0]: migtable_maxdispl = 70
Feb 11 16:14:42 localhost lookupd76: lookupd (version 369.5) starting - Mon Feb 11 16:14:42 2008
Feb 11 16:14:43 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Feb 11 16:14:43 localhost kernel[0]: The Regents of the University of California. All rights reserved.
Feb 11 16:14:43 localhost kernel[0]: using 8192 buffer headers and 4096 cluster IO buffer headers
Feb 11 16:14:43 localhost kernel[0]: DART enabled
Feb 11 16:14:43 localhost kernel[0]: FireWire (OHCI) Apple ID 42 built-in now active, GUID 001124ff fe382290; max speed s800.
Feb 11 16:14:43 localhost kernel[0]: Security auditing service present
Feb 11 16:14:43 localhost kernel[0]: BSM auditing present
Feb 11 16:14:43 localhost kernel[0]: disabled
Feb 11 16:14:43 localhost kernel[0]: rooting via boot-uuid from /chosen: 334016DB-E0CA-3E86-8A4D-47576141AB26
Feb 11 16:14:43 localhost kernel[0]: Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Feb 11 16:14:43 localhost kernel[0]: Got boot device = IOService:/MacRISC4PE/ht@0,f2000000/AppleMacRiscHT/pci@7/IOPCI2PCIBridge/k2-sat a-root@C/AppleK2SATARoot/k2-sata@0/AppleK2SATA/ATADeviceNub@0/IOATABlockStorageD river/IOATABlockStorageDevice/IOBlockStorageDriver/WDC WD2500JD-41HBC0 Media/IOApplePartitionScheme/Untitled@3
Feb 11 16:14:43 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Feb 11 16:14:43 localhost kernel[0]: Jettisoning kernel linker.
Feb 11 16:14:43 localhost kernel[0]: Resetting IOCatalogue.
Feb 11 16:14:43 localhost kernel[0]: Matching service count = 0
Feb 11 16:14:43 localhost kernel[0]: Matching service count = 6
Feb 11 16:14:43 localhost kernel[0]: Matching service count = 6
Feb 11 16:14:43 localhost kernel[0]: Matching service count = 6
Feb 11 16:14:43 localhost kernel[0]: Matching service count = 6
Feb 11 16:14:43 localhost kernel[0]: Matching service count = 6
Feb 11 16:14:43 localhost kernel[0]: IOPlatformControl::registerDriver Control Driver AppleSlewClock did not supply target-value, using default
Feb 11 16:14:43 localhost kernel[0]: IPv6 packet filtering initialized, default to accept, logging disabled
Feb 11 16:14:44 localhost diskarbitrationd71: disk0s3 hfs 334016DB-E0CA-3E86-8A4D-47576141AB26 Macintosh HD desktop /
Feb 11 16:14:44 localhost DirectoryService81: Launched version 2.1 (v353.6)
Feb 11 16:14:45 localhost kernel[0]: UniNEnet: Ethernet address 00:11:24:38:22:90
Feb 11 16:14:45 localhost launchd: Server 0 in bootstrap 1103 uid 0: "/usr/sbin/lookupd"76: exited abnormally: Hangup
Feb 11 16:14:45 localhost lookupd90: lookupd (version 369.5) starting - Mon Feb 11 16:14:45 2008
Feb 11 16:14:48 localhost mDNSResponder: Adding browse domain local.
Feb 11 16:14:48 localhost kernel[0]: UniNEnet::monitorLinkStatus - Link is up at 1000 Mbps - Full Duplex
Feb 11 16:14:48 localhost configd69: AppleTalk startup
Feb 11 16:14:48 sherrydesktop configd69: setting hostname to "sherrydesktop.local"
Feb 11 16:14:51 sherrydesktop kernel[0]: ATY,ChockStone_A: vram a0000000:10000000
Feb 11 16:14:51 sherrydesktop kernel[0]: ATY,ChockStone_B: vram a0000000:10000000
Feb 11 16:14:51 sherrydesktop configd69: executing /System/Library/SystemConfiguration/Kicker.bundle/Contents/Resources/enable-net work
Feb 11 16:14:51 sherrydesktop configd69: posting notification com.apple.system.config.network_change
Feb 11 16:14:51 sherrydesktop lookupd95: lookupd (version 369.5) starting - Mon Feb 11 16:14:51 2008
Feb 11 16:14:53 sherrydesktop configd69: target=enable-network: disabled
Feb 11 16:14:54 sherrydesktop configd69: AppleTalk startup complete
Feb 11 16:20:47 localhost kernel[0]: standard timeslicing quantum is 10000 us
Feb 11 16:20:44 localhost memberd57: memberd starting up
Feb 11 16:20:47 localhost kernel[0]: vmpagebootstrap: 1138664 free pages
Feb 11 16:20:44 localhost mDNSResponder-108.6 (Jul 19 2007 11: 33:32)50: starting
Feb 11 16:20:47 localhost kernel[0]: migtable_maxdispl = 70
Feb 11 16:20:46 localhost lookupd64: lookupd (version 369.5) starting - Mon Feb 11 16:20:46 2008
Feb 11 16:20:47 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Feb 11 16:20:47 localhost kernel[0]: The Regents of the University of California. All rights reserved.
Feb 11 16:20:47 localhost kernel[0]: using 8192 buffer headers and 4096 cluster IO buffer headers
Feb 11 16:20:47 localhost kernel[0]: DART enabled
Feb 11 16:20:47 localhost kernel[0]: FireWire (OHCI) Apple ID 42 built-in now active, GUID 001124ff fe382290; max speed s800.
Feb 11 16:20:47 localhost kernel[0]: Security auditing service present
Feb 11 16:20:47 localhost kernel[0]: BSM auditing present
Feb 11 16:20:47 localhost kernel[0]: disabled
Feb 11 16:20:47 localhost kernel[0]: rooting via boot-uuid from /chosen: 334016DB-E0CA-3E86-8A4D-47576141AB26
Feb 11 16:20:47 localhost kernel[0]: Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Feb 11 16:20:47 localhost kernel[0]: Got boot device = IOService:/MacRISC4PE/ht@0,f2000000/AppleMacRiscHT/pci@7/IOPCI2PCIBridge/k2-sat a-root@C/AppleK2SATARoot/k2-sata@0/AppleK2SATA/ATADeviceNub@0/IOATABlockStorageD river/IOATABlockStorageDevice/IOBlockStorageDriver/WDC WD2500JD-41HBC0 Media/IOApplePartitionScheme/Untitled@3
Feb 11 16:20:47 localhost kernel[0]: BSD root: disk0s3, major 14, minor 2
Feb 11 16:20:47 localhost kernel[0]: HFS: Removed 3 orphaned unlinked files
Feb 11 16:20:47 localhost kernel[0]: Jettisoning kernel linker.
Feb 11 16:20:47 localhost kernel[0]: Resetting IOCatalogue.
Feb 11 16:20:47 localhost kernel[0]: Matching service count = 0
Feb 11 16:20:47 localhost kernel[0]: IOPlatformControl::registerDriver Control Driver AppleSlewClock did not supply target-value, using default
Feb 11 16:20:47 localhost kernel[0]: IPv6 packet filtering initialized, default to accept, logging disabled
Feb 11 16:20:48 localhost diskarbitrationd56: disk0s3 hfs 334016DB-E0CA-3E86-8A4D-47576141AB26 Macintosh HD desktop /
Feb 11 16:20:49 localhost DirectoryService65: Launched version 2.1 (v353.6)
Feb 11 16:20:50 localhost kernel[0]: UniNEnet: Ethernet address 00:11:24:38:22:90
Feb 11 16:20:52 localhost mDNSResponder: mDNSPlatformSendUDP sendto failed to send packet on InterfaceID 01808800 lo0/4 to 224.0.0.251:5353 skt 9 error -1 errno 65 (No route to host) 306010061
Feb 11 16:20:52 localhost mDNSResponder: mDNSPlatformSendUDP sendto failed to send packet on InterfaceID 01808800 lo0/4 to 224.0.0.251:5353 skt 9 error -1 errno 65 (No route to host) 306010061
Feb 11 16:20:53 localhost mDNSResponder: mDNSPlatformSendUDP sendto failed to send packet on InterfaceID 01808800 lo0/4 to 224.0.0.251:5353 skt 9 error -1 errno 65 (No route to host) 306010311
Feb 11 16:20:53 localhost kernel[0]: UniNEnet::monitorLinkStatus - Link is up at 1000 Mbps - Full Duplex
Feb 11 16:20:53 localhost configd54: AppleTalk startup
Feb 11 16:20:53 sherrydesktop configd54: setting hostname to "sherrydesktop.local"
Feb 11 16:20:55 sherrydesktop kernel[0]: ATY,ChockStone_A: vram a0000000:10000000
Feb 11 16:20:55 sherrydesktop configd54: executing /System/Library/SystemConfiguration/Kicker.bundle/Contents/Resources/enable-net work
Feb 11 16:20:55 sherrydesktop kernel[0]: ATY,ChockStone_B: vram a0000000:10000000
Feb 11 16:20:55 sherrydesktop configd54: posting notification com.apple.system.config.network_change
Feb 11 16:20:55 sherrydesktop lookupd75: lookupd (version 369.5) starting - Mon Feb 11 16:20:55 2008
Feb 11 16:20:58 sherrydesktop mDNSResponder: Adding browse domain local.
Feb 11 16:20:59 sherrydesktop /System/Library/CoreServices/loginwindow.app/Contents/MacOS/loginwindow: Login Window Application Started
Feb 11 16:21:00 sherrydesktop configd54: AppleTalk startup complete
Feb 11 16:21:00 sherrydesktop configd54: target=enable-network: disabled
Feb 11 16:21:04 sherrydesktop loginwindow113: Login Window Started Security Agent
Feb 11 16:21:17 sherrydesktop /System/Library/Frameworks/ApplicationServices.framework/Frameworks/ATS.framewo rk/Support/ATSServer: (-3230) Cannot use ATS Persistent Store - switching to old FODB cache code

thank you thank you for taking an interest. this is so frustrating.
i only have apple keyboard, mighty mouse, and 20 inch cinema display connected. this morning took out memory and tried to boot up with individual pairs in the first bank. first the (2)256, the (2) 1g, and then the other (2) 1g modules. everytime I get the weird fuzzy wheel under the logo after a while, black screen flashes, then grey apple logo fuzzy screen then black forever.
I ran tiger updates this morn. still will only boot to safe mode. then tried to run leopard disk to install it
will not boot from leopard disk.
tried safe boot, then doulble click install leopard, restart, then the saga repeats with the pixely red square around the wheel.
these are fresh drives with only what came on instll disk loaded.
thanks again for taking an interest.
i love this system(well at least i did). I want to install leopard on my powerbook too but am terrified to do so right now since it is working and I have work to do. Can't afford to have no computer to do my work on...self employment is great?!
This is making me crazy. I anxiously await your words of wisdom.

Office Mac 11 pptx - not all files opening. When I do Safe Boot mode, the pptx files open correctly. What does this mean? How do I fix? thanks

Some pptx files do not open. I found whne I did Safe Boot Mode they did open correctly. Not sure what to do next?

See "Validate problematic fonts" here:
Mac Basics: Font Book

TS1884 What if the Safe Boot progress bar stops (around the 25%-30% mark)? Any other alternatives I have to get my MAcBook Pro to boot without running into an error?

Hi,
after starting my MacBook Pro I was faced with a grey screen stating that "an error has occurred, you need to restart your computer". I did that multiple times but the same message appeared each time. So I started the Safe Boot. Now the progress bar is stuck at the 25-30% progress mark since 30 min. Any advise on what to do from here?
Any help and advise is much appreciated!

I doubt that shutting it off will do any harm but don't do it too often.
Here is the best advice I can find for you:
http://reviews.cnet.com/8301-13727_7-57573680-263/what-to-do-when-a-mac-wont-boo t-to-safe-mode/

Hi i am having a big trouble. MY mac wont start past the gray screen. I tried starting on safe boot, single user user mode , recovery mode. Everything it gets stuck on the gray screen i even tried reinstalling it , same thing what should i do?

MY mac wont start past the gray screen. I tried starting on safe boot, single user user mode , recovery mode. Everything it gets stuck on the gray screen i even tried reinstalling it , same thing what should i do? it lets me reinstall sometimes Sometimes.... it is weird.

orshikhfromsc,
boot from the Mac OS X Install DVD that originally came in the box with your MacBook Pro (by holding down the C key as it starts up). When the desktop appears, select Disk Utility from the Utilities menu and erase your internal disk. After it’s been erased, reformat it. After it’s been reformatted, exit Disk Utility and reïnstall the version of Mac OS X from that DVD onto your internal disk. After that version of Mac OS X has been reïnstalled, boot from your internal disk and run Software Update to get it up-to-date within that version; that should allow you to redownload and reïnstall Mavericks, if desired. If Mavericks is reïnstalled, run Software Update again to get it up to date.
If you no longer have the two grey installation DVDs, you can purchase a replacement set from either Apple or iFixit.

HT1444 Screen is blank on startup but works fine when doing a safe boot. What could be wrong?

I have a Mac book pro 15 inch and the screen goes blank on startup. Screen comes up on safe boot. Also updated OS on line and do not have a backup disk to repair from. What should I do?

got system to boot up in safe mode and went into disk utility and did a repair on disk permissions and restarted, now everything seems to be working as it should. Now i don't have to go out and buy a new Mac but than again maybe I should.

Can't Safe Boot with 10.6.2 and GTX 285

Can't safe boot with 10.6.2 and NVIDIA GTX 285 (2009 Mac Pro).
What the heck am I supposed to do, take out the graphics card every time I want to safe boot?!
Suggestions please!

No, I think what it is, is that the GTX 285 drivers somehow are being treated as 3rd party extensions not to be loaded on a safe boot, but the problem is that without those drivers, even if I switch my monitor over to my GT 120 card, it still won't boot. Ugh.
I am considering reinstalling 10.6 over on top of my current system, then putting the 10.6.2 on top of that. If I do this, do I risk losing any preferences or having to reinstall any 3rd-party software? At this point, I'll happily reinstall whatever it takes... I just didn't want to have to do a clean system where I have to track down every single bookmark file and saved preference for my main apps, but it could be this is now starting to take more time than it simply would have to do that from the get-go. Sigh.

TS2570 Still cant access my computer, followed instructions to perform a safe boot and last line of script it shows: BootCacheControl: Unable to open /Var/db/BootCache.playlist:2 No such file or directory. Any idea?

Brand new Mac Book Pro
Purchased in Mexico's Department store Liverpool on June 20th 2012
Purchased Memory upgade to 8Gb, on june 27th, at Apple Store Memorial City, Houston
Upgraded memory from 4Gb to 8Gb on June 28th.
Tried to write on my external HD (previously written on a windows based PC) with no success.
Upon reccomendation from a Mac assistant, copied all my external HD contents into my Mac Hard drive.
Then formatted my external HD and copied back all my information to it.
deleted all the information from my MacBook Pro HD.
Attempted to repeat the same operation with another external HD, but got a message saying there was not enough epace on the computer HD (even though I have a 750Gb Hard Drive.
Looked in the trash bin and there it was, all the information previously deleted..
Could not empty the trash bin, although I got a message asking me to safely delete all the information from the trash bin,
Could not get enough space released, after several attpempts the trash bin was finally emptied.
All happy getting acquainted with my new MacBook Pro. Two days later, got a gray screen and not able to start the computer.
Looking in to Mac support I found article http://support.apple.com/kb/TS2570 and followed instructions to perform a safe boot:
"Perform a Safe Boot
Simply performing the Safe Boot may resolve this issue.
Shut down your Mac. If necessary, hold your Mac's power button for several seconds to force it to power down.
Start your Mac, then immediately hold the Shift key. This performs a Safe Boot. Advanced tip: If you want to
see the status of a Safe Boot as it progresses, you can hold Shift-Command-V during start up (instead of just Shift).
Note: A Safe Boot takes longer than a typical start up because it includes a disk check and other operations.
The following is the script that appears on the screen upon safe boot. and halt after the last line.
AppleACPICPU:Processor Id=6 LocalAplicId=255 Disabled
AppleACPICPU:Processor Id=7 LocalAplicId=255 Disabled
AppleACPICPU:Processor Id=8 LocalAplicId=255 Disabled
calling mpo_policy_init for TMSafetyNet
Security policy loaded: Safety net for Time Machine (TMSafetyNet)
calling mpo_policy_init for Sandbox
Security policy loaded: Seatbelt sandbox policy (Sandbox)
calling mpo_policy_init for Quarantine
Security policy loaded: Quarantine Policy (Quarantine)
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California. All Rights Reserved.
MAC Framework Succesfully initializad
using 16384 buffer headers and 10240 cluster IO buffer headers
IOAPIC: Version 0x20 Vextors 64:87
ACPI: System State [SO S3 S4 S5] (S3)
PFM64 (36cpu) 0xf10000000, 0xf0000000
Aplconsole relocated to 0xf1000000
PCI configuration changed (bridge=16 device=4 cardbus=0)
[ PCI configuration end, bridges 12 devices 16 ]
Firewire (OHCI) Lucent ID 5901 built-in now active, GUID 3c0754fffe9b2aa2; max speed s800.
Pthread support ABORTS when sync kernel primitives misused
com.apple.AppleFSCompressionTypeZlib kmod start
com.apple.AppleFSCompressionTypeDataless kmod start
com.apple.AppleFSCompressionTypeZlib load succeeded
com.apple.AppleFSCompressionTypeDateless load succeeded
AppleIntelCPUPowerManagementClient: ready
BTCOEXIST off
wl0: Broadcom BCM4331 802.11 Wireless controller
5.100.98.75
AppleUSBMultitouchDriver::checkStatus - received Status Packet, Payload 2: device was reinitializad
rooting via boot-uuid from /chosen: 6E918706-FC0D-37460-A3A0-6268A51DF93B
Waiting on <dict ID="0"><key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Got boot device = IOService:/AppleACPIPlatformExpert/PCI0@0/AppleAPIPCI/SATA@1F,2/AppleIntelPchSe riesAHCI/PRT0@0/AOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlock
storageevice /IoBlockStorageDriver/TOSHIBA MK7559GSXF Media/IOGUIDPartit
BSD root: disk0s2, major 14, minor 2
Kernel is LP64
com.apple.launchd 1   com.apple.launchd 1   *** launchd[1] has started up. ***
com.apple.launchd 1   com.apple.launchd 1   *** Verbose boot, will log to /dev/console. ***
Running fsck on the boot volume...
** /dev/rdisk0s2 (NO WRITE)
** Root file system
   Executing FSCK_HFS (version diskdev_cmds-540.1~25).
BootCacheControl: UNable to open /Var/db/BootCache.playlist:2 No such file or directory
launchctl:Dubious permissions on file (skipping): /Library/LaunchDaemons
launchctl:Dubious permissions on file (skipping): /System/Library/LaunchDaemons
Any help or suggestions on what to do next would be welcomed.
I am in the middle of the Atlantick, stuck with a brand new, non working Apple MacBook Pro.
Best regards
Sergio Ramos

Reinstalling MacOS does NOT fix the problem for me. I'm still searching a solution !
Bernard

My macbook pro ended up in safe boot mode randomly twice in a row...how do i fix this permanently??!

And I think this issue is coming from a few different problems I've had with my MacBook Pro on lion...one major thing was probably the fact that I changed from Lion to Mountain Lion...and then changed right back (I think I did back up my stuff first), but somehow it didn't agree with my computer. Also I've been wearing it out a lot by throwing it with the case into my car frequently...maybe a bit much, idk...also though I have a lot of trouble keeping up with the numerous files that build up on my desktop and don't know where to begin. Let's just say my computer has pretty much had it, although for months it's been functioning normally.
...oh yeah and did I mention I had to get a brand new hard drive, with that not really making a difference as to how bad I, um, throw my computer around (it's not as bad as you think but to be candid, blech). I did bang my computer at one point in a rage attack and made sure no one really knew when I took it to get it fixed? TMI...that's what I deserve....so.
I did try this web link the second time in a row this happened which was about an hour or so that I managed to, uh, kind of fix it with the bottom advice on the page:
http://applehelpwriter.com/2012/06/24/mac-keeps-starting-in-safe-mode/
(sorry I couldn't get this to click)
Anyways at the bottom of this help article you will notice the very end of PRAM reset directions where you hear the start up chime two times. That did not happen, but somehow out of nowhere the computer stopped the safe boot mode routine and the progress bar didn't show up as I continued to hold down the given keys. I really don't know where my luck came from there...and I also found an article that fixed my computer the first time and I cringe to say that it came from a person on Apple Discussions complaining about something similar that one of my friends helped me google. Planning to actually bookmark the applehelpwriter article in case I just happen to need it but i'm pretty sure someone will be on here with an answer at some point.
SO....I did get my comp fixed twice now, but I hope that somebody will go back and read the beginning of my question explanation to see if I'm doing something that may be overwhelming my computer. If this safe boot thing happened to me instead of me testing the computer myself AND MORE THANA ONCE yikes...something needs to be done. Take note that the only reason I'm asking the community's advice is that I'm past my computer's contract so if I wanted to I couldn't take my computer to get it fixed and I planned to take one or two more classes in college again to complete my certificate.
Please help, some people must run into this situation at some point, either way if they ask or don't I'm sure they're lucky to get it fixed somewhere.
chels

Only if your home/renters insurance doesn't cover such damage without raising your rates/dropping you. Ask first of them if it is worthwhile the claim once you get an estimate for repair. These repair places are pretty good:
http://www.dttservice.com/
http://www.powerbookresq.com/
http://www.microdocusa.com/
http://www.macspecialist.com/
http://www.techrestore.com/

Help: upon safe boot, got following message: BootCacheControl: Unable to open /Var/db/BootCache.playlist:2 No such file or directory

Mac Book Pro, late 2011. Purchased in a department store in Mexico.
Was running ok for several days after I purchased it.
Had some software installed and memory upgraded from 4 to 8Gb.
Suddenly at start up, got a gray screen with a spinning wheel and never boot.
Followed advise from http://support.apple.com/kb/TS2570 and performed a safe boot. (hold Shift-Command-V during startup instead of just Shift).
The boot sequence starts then stops and nothing happens. these are the last lines of the boot sequence.
BSD root: disk0s2, major 14, minor 2
Kernel is LP64
com.apple.launchd 1   com.apple.launchd 1   *** launchd[1] has started up. ***
com.apple.launchd 1   com.apple.launchd 1   *** Verbose boot, will log to /dev/console. ***
Running fsck on the boot volume...
** /dev/rdisk0s2 (NO WRITE)
** Root file system
   Executing FSCK_HFS (version diskdev_cmds-540.1~25).
BootCacheControl: Unable to open /Var/db/BootCache.playlist:2 No such file or directory
launchctl:Dubious permissions on file (skipping): /Library/LaunchDaemons
launchctl:Dubious permissions on file (skipping): /System/Library/LaunchDaemons
For what little experience I have on Unix systems, it has to do with the libraries which cannot be launched...
Any ideas, solutions, suggestions are welcomed.
Cheers.
Dipbaja

Boot into Recovery (command-R at startup), launch Disk Utility, select your startup volume, and run Repair Permissions. Then reboot as usual.

Why does a Safe Boot fix my video problem?

After visiting my local Genius Bar twice (and getting two different answers), I erased and reinstalled Snow Leopard 10.6 on my late-2006 "white plastic" iMac.
I reinstalled the version of SL that came with the iMac, then upgraded it twice to OS 10.6.8. Software Updater says all of my OS components are up-to-date.
My video-corruption problems ("ghosting", "tearing", pixelation of icon, then the kernel CRASHES within 20 minutes) appear when I boot normally. But they permanently disappear when I reboot into the Safe Mode!
I've search Apple.com and every other site I can find without a clear answer to this:
What extensions, StartUp items, software daemons or gremlins DO NOT load in Safe Mode? Shouldn't one of them be the cause of my problem? Or does Safe Boot work on a hardware-level, too?
This happens on ALL accounts, both Admin and regular users. No external devices are connected except the wired mouse and wired keyboard.
I've zapped the PRAM three times, and I've unplugged it for hours. Disk Utility shows everything is good, too. There's about 50 gigs left on the internal 750 GB hard drive.
The so-called "Geniuses" both ran their Triage OS off an external drive and my iMac hardware passed ALL of their tests. One said it just needed a reinstall (a free fix!!), and the other said my video card is bad ($800, and I have to use an outside repair shop).
Can someone give me an idea how to proceed? I've been working in Safe Mode for days, but that prevents me from using: Sound, my home network, fonts, Preview, editing in iPhoto, etc.
Thanks.
Specs:
Model Name: iMac
Model Identifier: iMac6,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.33 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 3 GB
Purchase Date: March 2007

Hi, Mike,
Thanks for the quick reply.
I read the linked post about QE, but I don't see how it could help me troubleshoot my problem. Could you clarify: is QE a piece of "software" (that is, a file -- like an extension)?
If QE IS a piece of software that is disabled in a Safe Boot, I should be able to move it to my Desktop and restart. If my video problem is eliminated, the QE software is the problem, right?
But then, if my problem is caused by a file/extension, why would the problem occur (and be eliminated in a Safe Boot) right after I re-installed the OS? Shouldn't all the System software be pristine right after re-installation? But since it's NOT fixed by the re-installation, it seems like a hardware problem -- like the expensive video card. That's what's confusing me.
So, I'm proceeding as if the problem is caused by a file being loaded into memory and I'm trying to disable the items that don't load in Safe Boot Mode one-at-a-time. I just need a specific list of what those items are (and their locations on my hard drive).
In OS/9, I used Conflict Catcher to do this automatically, but I haven't found an OSX app to do the same. So I'm trying to do it manually.
Please excuse my layman's terms. Any help is appreciated.

What a heck is "safe boot"?

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