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Mac OS X 10.4.10 (#3): Important files modified by this update, downgrading components; possible fix for audio pops
Important files modified by this update, downgrading components As with all significant updates, it is important to take note of which files are modified by Mac OS X 10.4.10 so that if a problem occurs after its installation, you can reasonably surmise whether or not there is a potential that the update was culpable. For instance, the update has caused audio issues for a number of users -- a problem that can potentially (albeit not necessarily) be linked to the update's modification of the audio input/output kernel extension: /System/Library/Extensions/IOAudioFamily.kext.
If you are experiencing major problems you believe to be caused by a specific component, you can downgrade it to an earlier version via this process:
Download the appropriate Mac OS X 10.4.9 combo updater from Apple's download page.
Download and install the shareware application Pacifist
Drag the Mac OS X combo installer package (e.g. MacOSXUpd10.4.9Intel.pkg) onto the Pacifist application icon.
Scan the list of installed files for items that might be causing your problem by clicking on the disclosure triangles. As mentioned above, /System/Library/Extensions/IOAudioFamily.kext might be implicated in an audio issue, for instance. Pay particular attention to >/System/Library/CoreServices, /System/Library/Extensions(files stored here are kernel extensions -- items that are used to interact through an abstraction layer with the Mac OS X kernel, and can be implicated in kernel panics and other issues) and /System/Library/Frameworks
Find the file you are looking for by clicking the disclosure triangles to reveal the targeted location.
Select the file in question and click the Install button in Pacifist. You will be required to enter your administrator password.
Restart your Mac
You should generally not mix and match components from different system versions because of potential compatibility issues. You will also lose any refinements brought about by the revision. Still, in a bind, replacing newer items with older ones can solve otherwise insoluble issues.
Here is a partial list of important files modified by Mac OS X 10.4.10:
/Applications
Address Book
Internet Connect
/System/Library/Extensions/ (these kernel extensions control a bevy of functionality -- check here if you are having problems with graphics cards, audio, AirPort networking, external USB/FireWire devices and more)
webdav_fs.kext
smbfs.kext
System.kext
IPFirewall.kext
IOUSBMassStorageClass.kext
IOUSBFamily.kext
IOSerialFamily.kext
IOHIDFamily.kext
IOSCSIParallelFamily.kext
IONetworkingFamily.kext
IOAudioFamily.kext
AppleSMC.kext
AppleOnboardDisplay.kext
AppleSmartBatteryManager.kext
AppleSMBIOS.kext
ATIRadeon9700.kext
IOSCSIArchitectureModelFamily.kext
IOPlatformPluginFamily.kext
ATIRadeon.kext
IOGraphicsFamily.kext
IOFireWireFamily.kext
AppleAirPort.kext
AppleFWAudio.kext
AppleFileSystemDriver.kext
AppleBacklight.kext
AppleIntelGMA950.kext
AppleHDA.kext
(many more)
/System/Library/Filesystems (check here if you are having problems with mounting certain disks or shared volumes)
smbfs.fs
URLMount
ufs.fs
AppleShare
webdav.fs
/sbin (more filesystem mounting components [and other important pieces] are here. You may need to replace items here and in /System/Library/Filesystems. For instance, if you are having problems mounting SMB filesystems, try replacing mount_smbfs here and smbfs.fs in /System/Library/Filesystems)
slattach
mount_afp
mount_webdav
ifconfig
routed
rtsol
ipfw
nfsd
mount_smbfs
nfsiod
ping6
route
ip6fw
ping
fsck
More on audio pops, potential fix If you are having problems with audio pops, distortion, etc., try downgrading the /System/Library/Extensions/IOAudioFamily.kext file as mentioned in the section above. Reader reports of the problem continue to flood in, making it one of the most prominent issues with Mac OS X 10.4.10.
One reader writes:
"On my iMac 1.83 Intel Core Duo I also have the annoying audio pops. Every time I start a song in iTunes, first you here a pop (or tic, whatever you call it). Also, when there is no music, every 1-2 minutes you hear a pop. Never had it before, just after the update to 10.4.10."
MacFixIt reader Bryan adds:
"I've had the speaker pop problem suddenly appear after installing 10.4.10. It's a faint pop every few minutes.. like the speaker's lost electricity for just a moment then regains it. This is on my Mac mini core duo 1.66 (first intel generation)."
Tristan writes:
"i am also experiencing a pop sound with my speakers that are always hooked up to my 1st gen rev a macbook. The pop occurs just before actual sound is used, and a short time after, they behave almost as if it is the speakers turning on and off before and after being used, although that is certainly not the case, i'm just trying to find a way to describe the behavior. Up until the recent update there have been no issues in the year that i have run this laptop"
Feedback?
Late-breakers@macfixit.com.
Previous coverage:
Mac OS X 10.4.10 (#2): Audio problems -- poor quality; Wireless issues; App launch failure; more
Mac OS X 10.4.10 released: USB, third-party software, security improvements
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4 comments Most Recent Post: 06/22 01:16PM by bruce.mckenzie_dotmac
Late-Breakers
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#93123 iTunes: How to convert a song to a different file format
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#25609 Mac OS X 10.3: Printer Sharing shares both printers and faxes
#305709 Motion: Compressor does not start after using earlier Motion Content installer
#305533 About the Mac OS X 10.4.10 Update (delta)
#305631 About the security content of Apple TV 1.1
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