OS X :: Safe Mode And Open Firmware Password Enabled
Nov 11, 2010
I have the Open Firmware Password enabled, which prevents my machine from booting into Safe Mode when I hold the shift key at startup (as expected). As a result, if I want to use Safe Mode I have to boot up from my install DVD, disable the password and then reboot. Very time consuming! I just read about a way to boot into Safe Mode:
(at [URL="http://support.apple.com/kb/ht1455"]Apple Support[/URL)]
by entering the following terminal command: sudo nvram boot-args="-x"
I'm a little hesitant to test it out in case I run into some sort of Open Firmware/Safe Mode conflict.
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Jun 6, 2012
Is it possible to place a password when booting into safe mode on my Mac. Let me explain a little more. I know that the accounts are all their and you can place passwords on the user accounts, but here is my problem. I use k9 web filtering and when you boot up in safe mode it does not work and you have unfiltered access to the internet. Is it possible to only allow the system admin to boot into safe mode with a password so no one else would have access? Its a work around the filter I am trying to block.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.4)
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Mar 31, 2012
My MacBook pro is only starting in safe mode and it's not recognizing my password. I have a cd in the notebook and it won't come out so I can't put in another disk if I needed to.
Info:Mac OS X (10.6.5)
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Nov 5, 2010
I've just set up an Open Firmware Password for the first time. My understanding is that this would prevent booting the Mac from another volume (i.e. an OS X install DVD). After setting up the password and rebooting my machine, I decided to test things out by inserting my OS X install DVD and selecting it from the "Startup Disk" preference pane. Lo and behold, it rebooted from the DVD without asking for the password.
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May 3, 2012
I tried to download the lastes version of open firmware, but it is incompatible with the version of my computer. Don't tell me to use a disk I got with my computer, that would be for a Macbook Pro, not a Macbook, which is what I have. Please tell me if you can find a link to a firmware password program for Mac OSX 10.6.8, or if you have another way of installing a firmware password.
Info:
MacBook, Mac OS X (10.6.8)
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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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Jun 8, 2008
My open firmware password wont reset.
I tried the method of removing some ram and yes i did it correctly plenty of times and got nothing.
then i also opened the whole intire computer and disconnected the battery and also got nothing.
also right now the system has no O/S so i am not sure what to do from here. I cant use any boot commands or anything.
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Sep 9, 2009
I just picked up an old eMac today that I'm trying to get it working. The problem is the open firmware password is set, and I have no idea what it is. If the open firmware password is set, it prevents you from doing anything without it including booting from a CD and zapping the PRAM. I changed the ram, removed the internal battery and hit the PMU reset button expecting this to clear the password, but it didn't work. Removing the internal battery did reset the system clock to 1/1/1904, but didn't change anything else.
Also aside from the practical question about resetting the password, I'm suddenly left wondering where the system stores the open firmware password. If it isn't stored on the hard drive, and it doesn't depend on the internal battery, then how is it saved? Just for clarification I have no idea who the original owner was or where it came from. So there is no chance of just finding the correct password.
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Dec 24, 2008
I have MacBook Pro 2.4GHz Penryn 15". OS X Leopard, 6 months old.
In trying to add up to a wireless network at home (with a PC and a laptop Windows XP) I switched to "start from network" on System Preferences. On reboot, shows image of file with a ? or flashes a world clip. Usual command+S or C, Alt, attempt to reboot from CD fail. Before attempting anything else I don't want to lose my documents. When reboot with Alt, the padlock with space for password appears. I didn't set a password when I installed OS.
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Mar 20, 2010
I was travelling and added a firmware password a few months back, I now want to disable this to install Ubuntu on a partition of my MacBook - but there are no directions how to in the utility.I looked at the Apple doc I originally used to set the password: [URL]/HT1352, and I cannot find a companion document for taking it off. So, if anyone knows how I go about doing this,
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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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Jul 6, 2010
I have a 15" mbp with 10.6 Intel core duo, 4gb ram with a boot camp and ubuntu partition through parallels. The other day I was installing xcode from apple's website, which failed 3 times after downloading saying the package couldn't be expanded. I left my computer for a while and came back where i then had to log in again. it rejected my password numerous time (i'm positive it was correct). when i restarted my computer i got a kernal panic screen when the apple logo came up. it told me to restart the computer which i did. didn't work. i restarted with the osx cd to use the disk utility. when it checked the drive it found a bunch of errors, which i then tried to correct. it went for a couple minutes then told me they couldn't be fixed and i should try to back up my data and reinstall osx. i don't know how to back up my hard drive when i can't log into my account. i've tried to boot in target disk mode and copy some files that way, but the only disk the other computer sees is my windows partition- no mac partition.
i've also tried these, none of these have worked: restarting in safe mode resetting the ram and pram booting with different sticks of ram all result in a kernal panic.
my windows partition still works fine though (as much as i hate to say it) the only things I really care about on my computer are my files from school and my itunes library. is there any way i can get these files off my computer?
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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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Aug 21, 2014
I'm not sure what to do. I haven't tried resetting NVRAM/PRAM or the PMU/SMC, but are there other options I can try besides those?
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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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Nov 30, 2008
my computer wont run in regular mode. The problem occurred when I was changing my resolution and I pressed the wrong one. The screen went blank so I restarted, then the screen turned black after the apple logo. Now I can only run in safe boot. Is there any way to change the res. for the regular boot in the safe boo mode?
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Aug 24, 2014
Why i cant watch youtube as youtube inform this "This video is unavailable with safety Mode enabled. To view this video, to need to disable safety mode" how can i turn off safety mode
Why i cant watch youtube as youtube inform this "This video is unavailable with safety Mode enabled. To view this video, to need to disable safety mode" how can i turn off safety mode
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Jun 29, 2012
Why visited pages, e.g facebook, are shown in history even though I have private browsing mode enabled?, why pages, e.g facebook are shown in history even though I have private browsing mode enabled?
Info:
PowerMac, Mac OS X (10.5.8)
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May 19, 2012
I have iMac and forgot my log in password. Want to reset the password and not quite sure whether filevaut was enabled or not. i tried to use apple id to reset the passwor but it failed.
Info:
iMac, Mac OS X (10.7.3)
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Jun 27, 2012
I have a OD domain that I've been adding systems too, and I've just about got it dialed in. Now I'd like to enable a global password policy, and I'm curious what actually happens when I flip the switch in Server Admin > Open Directory > Settings > Policies > Passwords? If I set a "reset every 90 days" option, is that from the time the policy is enabled, or from the time the user account was created? If I set a "must have one letter" or "numeric character", etc...and the user doesn't currently have a password that matches this criteria, will they be forced to set a new password immediately, or the next time one is initiated? Basically what I'm trying to figure out is how many support tickets I'm going to have, and (almost more importantly) when.
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Sep 25, 2009
Just wondering.
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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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Jun 22, 2010
I was getting a error code 36 on my mac so I decided to try to boot up in safe mode now my macbook pro will not stop trying to boot to safe mode. I am on snow leopard.
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May 3, 2012
i need help cause my brother logged in to the guest mode and since then it goes to guest mode automatically with out giving me the chance to log in the only way i can get back in to my account i have to hold the shift key down at boot, yet when i let the mac boot up normal way it goes straight to that safari web browser.
Info:
MacBookPro, iOS 5.1
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Nov 11, 2010
How do I set a firmware password?
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Oct 8, 2010
I have a 21.5 inch iMac and am running Snow Leopard. I am familiar with Safe Mode and I understand that it does a disk check and repair and also does some cache clearing during a startup process that allows the user to startup into a system where certain kernel extensions, etc, are disabled to allow for trouble shooting. Then the user can do a restart and end up back in normal mode.
My question is whether starting up into Safe Mode could prove beneficial as some sort of routine maintenance?
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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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Jun 11, 2008
I started (because I wanted to) my MBA into safe mode. Just hadn't tried it before. It took, what seemed, an inordinate amount of time to boot.
I pressed the shift ket at the BONG and released at the spinning gear screen. Is this normal? Does OS X perform disc read/write, verification, cache handling, etc. that causes the lengthy boot.
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Dec 11, 2008
on pc, when they get software related issues, i press F8 for Safe Mode and im in 9/10 times. on Mac, I've never gotten Safe Mode to work when there's a problem.
say i DID get into safe mode, whereas i couldn't get in regularly. what more could I do that I couldn't do from disk than Repair permissions?
I guess what i'm getting at is WHAT IS SAFE MODE GOOD FOR?
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