Macbook startup freeze - missing mdnsresponder loop

Hello
I got a confused call from a friend now in India to do an important business presentation. He is stuck with a MacBook that freeses on boot-up.
It was not easy to find out what the symptom was in detail over the phone, but I had him start up in single user mode, and he got a loop which included the following error (not 100% that all of this is correct):
missing com.apple.launch[1] mdnsresponder (com.apple.mdnsresponder [1491] posix-spanwnp (/usr/sbin)
At some point the loop stopped, and we were able to do an fsck. He got volum ok after a couple of tries, but the start-up problem is still there.
He has no back-up system drive or system discs with him. Is there anything he can do except from giving up and bring the machine to an Apple Store when he gets home? Is this likely to be a hardware problem, or related to a corrupt system file or the like?

Hi Harriet, and a warm welcome to the forums!
It'll boot up fine in safe mode.
It could mean that you have some Hardware failure, or it might be 3rd party things, or just corruption.
In Safe Mode try making a new Admin Account & log into that one for a test.
One way to test is to Safe Boot from the HD, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions...
Reboot, test again.
If it only does it in Regular Boot, then it could be 3rd party add-on, Check System Preferences>Accounts>Login Items window to see if it or something relevant is listed.
Check System Preferences, the Other row for possibilities.
Also look in these if they exist, some are invisible...
/private/var/run/StartupItems
/Library/StartupItems
/System/Library/StartupItems
/System/Library/LaunchDaemons
/Library/LaunchDaemons

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try to boot off the cd installazzione, when the screen appears to follow thePACKING screen viewing. If you've already looked in the manual are your problem?

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'''Try Firefox Safe Mode''' to see if the problem goes away. [[Troubleshoot Firefox issues using Safe Mode|Firefox Safe Mode]] is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
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*In Firefox 29.0 and above, click the menu button [[Image:New Fx Menu]], click Help [[Image:Help-29]] and select ''Restart with Add-ons Disabled''.
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:[[Image:Safe Mode Fx 15 - Win]]
'''''If the issue is not present in Firefox Safe Mode''''', your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] article to find the cause.
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Advice how to solve this problem

Disconnect all peripherals from your computer.
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Problem description:
my macbook keep freezing and lagging
and the “beach ball” keep showing even though i just open my chrome
EtreCheck version: 2.0.11 (98)
Report generated November 12, 2014 at 11:15:13 AM GMT+8
Hardware Information: ℹ️
MacBook Pro (13-inch, Mid 2012) (Verified)
MacBook Pro - model: MacBookPro9,2
1 2.5 GHz Intel Core i5 CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1600 MHz ok
BANK 1/DIMM0
2 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 4000 -
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.10 (14A389) - Uptime: 0:59:29
Disk Information: ℹ️
APPLE HDD HTS545050A7E362 disk0 : (500.11 GB)
S.M.A.R.T. Status: Verified
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 498.88 GB (447.04 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 499.25 GB Online
HL-DT-ST DVDRW GS41N
USB Information: ℹ️
Apple Computer, Inc. IR Receiver
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. FaceTime HD Camera (Built-in)
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/System/Library/Extensions
[not loaded] com.VIATelecom.driver.ViaUsbSer (1.0.0 - SDK 10.7) Support
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[invalid?] SwapperUFi.plist Support
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[loaded] com.adobe.fpsaud.plist Support
[loaded] com.ea.origin.ESHelper.plist Support
[invalid?] PPPMonitord.plist Support
User Launch Agents: ℹ️
[loaded] com.google.keystone.agent.plist Support
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Dropbox UNKNOWN (missing value)
Internet Plug-ins: ℹ️
FlashPlayer-10.6: Version: 15.0.0.189 - SDK 10.6 Support
Flash Player: Version: 15.0.0.189 - SDK 10.6 Mismatch! Adobe recommends 15.0.0.223
QuickTime Plugin: Version: 7.7.3
Default Browser: Version: 600 - SDK 10.10
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AdBlock
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Flash Player Support
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Time Machine not configured!
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      4% GoogleSoftwareUpdateAgent
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      0% sysmond
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Top Processes by Memory: ℹ️
142 MB Google Chrome
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My MacBook pro freezes during start up after 30 secs. Any ideas?

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On my Mac that DSMOS message appears about 20 seconds into the boot process. Booting finishes about 30 seconds after that.
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17 Macbook Pro, freezing while rendering video in FCP

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Hi instantclassic99,
I do have this article of key combinations on startup:
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http://support.apple.com/kb/ht1533
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My macbook keeps freezing when i put my password in the unlock my computer

my macbook keeps freezing when i put my password in the unlock my computer

Hi scottschierer,
Welcome to the Apple Support Communities!
I understand that your computer reaches the login screen but does not load the Desktop after you log in. In this situation, I would recommend working through the troubleshooting steps located in the attached article to help resolve the issue.
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Problem description:
slow opening programs sometime freezes
EtreCheck version: 2.1.5 (108)
Report generated December 23, 2014 at 2:59:21 PM EST
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
Hardware Information: ℹ️
MacBook Pro (13-inch, Late 2011) (Verified)
MacBook Pro - model: MacBookPro8,1
1 2.8 GHz Intel Core i7 CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
Intel HD Graphics 3000 - VRAM: 384 MB
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.10.1 (14B25) - Uptime: 18:14:29
Disk Information: ℹ️
TOSHIBA MK7559GSXF disk0 : (750.16 GB)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / : 748.93 GB (699.12 GB free)
Encrypted AES-XTS Unlocked
Core Storage: disk0s2 749.30 GB Online
HL-DT-ST DVDRW GS23NR
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
Mac App Store and identified developers
Adware: ℹ️
Geneio [Remove]
Kernel Extensions: ℹ️
/Library/Extensions
[loaded] com.avatron.AVExFramebuffer (1.7 - SDK 10.9) [Support]
[loaded] com.avatron.AVExVideo (1.7 - SDK 10.9) [Support]
/System/Library/Extensions
[not loaded] com.MCCI.SLAB_USBtoUART (1.02.0f2) [Support]
Launch Agents: ℹ️
[invalid?] com.divx.dms.agent.plist [Support]
[invalid?] com.divx.update.agent.plist [Support]
[loaded] com.hp.help.tocgenerator.plist [Support]
[loaded] com.oracle.java.Java-Updater.plist [Support]
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[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.macpaw.CleanMyMac2.Agent.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
[loaded] com.oracle.java.Helper-Tool.plist [Support]
[invalid?] com.sharpcast.xfsmond.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Support]
[invalid?] com.divx.agent.postinstall.plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[running] com.spotify.webhelper.plist [Support]
User Login Items: ℹ️
Air Display Host Application (/Applications/Air Display Host.app)
HPEventHandler UNKNOWN (missing value)
HP Scheduler Application (/Library/Application Support/Hewlett-Packard/Software Update/HP Scheduler.app)
SymSecondaryLaunch UNKNOWN (missing value)
Internet Plug-ins: ℹ️
JavaAppletPlugin: Version: Java 7 Update 40 Check version
SkyCaddiePlugIn: Version: 1.02 [Support]
Default Browser: Version: 600 - SDK 10.10
SlingPlayer: Version: Unknown - SDK 10.8 [Support]
AdobePDFViewerNPAPI: Version: 10.1.13 [Support]
FlashPlayer-10.6: Version: 15.0.0.246 - SDK 10.6 [Support]
Silverlight: Version: 5.0.61118.0 - SDK 10.6 [Support]
Flash Player: Version: 15.0.0.246 - SDK 10.6 Mismatch! Adobe recommends 16.0.0.235
QuickTime Plugin: Version: 7.7.3
SharePointBrowserPlugin: Version: 14.4.3 - SDK 10.6 [Support]
AdobePDFViewer: Version: 10.1.13 [Support]
DirectorShockwave: Version: 12.0.7r148 - SDK 10.6 [Support]
Safari Extensions: ℹ️
DivX Plus Web Player HTML5 <video> [Installed]
Searchme [Installed] Adware! [Remove]
Amazon Shopping Assistant [Installed] Adware! [Remove]
Ebay Shopping Assistant [Installed] Adware! [Remove]
3rd Party Preference Panes: ℹ️
Connect360 [Support]
Flash Player [Support]
Growl [Support]
Java [Support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
      11% System Information
      10% WindowServer
      7% Google Chrome
      4% ARM
      3% hidd
Top Processes by Memory: ℹ️
186 MB Google Chrome
129 MB mds_stores
94 MB Microsoft Excel
94 MB WindowServer
89 MB Google Chrome Helper
Virtual Memory Information: ℹ️
88 MB Free RAM
1.54 GB Active RAM
1.43 GB Inactive RAM
1.18 GB Wired RAM
2.74 GB Page-ins
2 MB Page-outs
Diagnostics Information: ℹ️
Dec 22, 2014, 08:45:31 PM Self test - passed
Dec 21, 2014, 01:07:54 PM /Library/Logs/DiagnosticReports/softwareupdated_2014-12-21-130754_[redacted].cp u_resource.diag [Details]

Launch the Console application in any of the following ways:
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☞ Open LaunchPad and start typing the name.
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from the log list on the left. If you don't see that list, select
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from the menu bar at the top of the screen.
Click the Clear Display icon in the toolbar. Then take an action that isn't working the way you expect. Select any messages that appear in the Console window. Copy them to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.
The log contains a vast amount of information, almost all of which is irrelevant to solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.
Please don't indiscriminately dump thousands of lines from the log into this discussion.
Please don't post screenshots of log messages—post the text.
Some private information, such as your name or email address, may appear in the log. Anonymize before posting.

MacBook Air freezing upon wake from sleep

Hello there! Ever since installing Mavericks, my MacBook Air freezes nearly every time I wake it from sleep. Whever I open the lid, it allows me to enter my password, and then it freezes. Other times, it will let me log in, and then whenever I try to use Safari or another application it freezes. It doesn't completely freeze, I get the beachball and everything. What is going on?

Hello there AustinJGibson,
It sounds like you are having performance issues with Mavericks.
It sounds like you are seeing some performance issues after having installed Mac OS X 10.9.
I want to recommend the troubleshooting information from this article named:
OS X Mavericks: If your Mac runs slowly
http://support.apple.com/kb/PH13895
If you find your Mac is running slowly, there are a number of potential causes that you can check.
An app you’re using may require more memory than your computer has. To see how much memory your computer has, choose Apple menu > About This Mac. See the documentation that came with the app to find out what it requires. To find out how to increase your computer’s memory, see the documentation that came with it.Find the manual for your Mac
Quit any application that isn’t compatible with your computer. For example, an application may require a different processor or graphics card. See the documentation that came with the application to find out what it requires.
To see what processor your computer has, choose Apple menu > About This Mac.
To see what graphics card your computer has, choose Apple menu > About This Mac, click More Info, and then click Displays.
Your computer’s startup disk may not have enough free disk space. To make disk space available, you can move files to another disk and then delete files you no longer need on the startup disk.Increase disk space
Quit any apps you’re not using.
If none of these suggestions work, you may need to repair your computer’s disk in Disk Utility.Repair a disk
Next I would perform a Safe Boot:
Mac OS X: What is Safe Boot, Safe Mode?
http://support.apple.com/kb/ht1564
Thank you for using Apple Support Communities.
Regards,
Sterling

MacBook pro freezes at start up

My MacBook pro freezes at start up at the gray screen w/ spinning gear.
I did a firmware update yesterday and this happened upon restart.
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You need to back up your data before you do anything else, if it's still possible.
There are several ways to back up a Mac that is unable to fully boot. You need an external hard drive to hold the backup data.
1. Boot from your recovery partition (10.7 or later), a local Time Machine backup volume (10.7.2 or later), or your installation disc (10.6.8 or earlier.) Launch Disk Utility and follow the instructions in the support article linked below, under “Instructions for backing up to an external hard disk via Disk Utility.”
How to back up and restore your files
2. If you have a working Mac, and both it and the non-working Mac have FireWire ports, boot the non-working Mac in target disk mode by holding down the key combination command-T at the startup chime. Connect the two Macs with a FireWire cable. The internal drive of the machine running in target mode will mount as an external drive on the other machine. Copy the data to another drive.
How to use and troubleshoot FireWire target disk mode
3. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.

MacBook Pro freezes or shut down automatically in sleep mode

Hi there,
since awhile I'm troubled with a strange problem: Every now and then my MacBook Pro freezes randomly.
The only way to recover is to use the power button. There is no causality with programs I used or with
external devices. I don't use SOPHOS by the way.
The second strange thing is that my MacBookPro also automatically shuts down (after a while) when I use the screensaver
or the sleep mode. Any Idea?
Kind Regards,

Try a Safe Mode boot ...
Startup your Mac in Safe Mode
A Safe Mode boot takes longer than a normal boot so be patient.
Once you are in Safe Mode, click Restart from the Apple () menu.
A Safe Mode boot deletes some system caches that may help.

Macbook startup freeze - missing mdnsresponder loop

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