Re: 10.4.9 and USB (2.0) Horkage?

Subject: Re: 10.4.9 and USB (2.0) Horkage?

From: webmaster <email@hidden>

Date: Mon, 19 Mar 2007 15:22:47 -0400

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On Mar 19, 2007, at 13:40:36, Phillip Burk wrote:

On Mar 19, 2007, at 10:49 AM, Simon Slavin wrote:

On 19 Mar 2007, at 2:31pm, Phillip Burk wrote:

I'm curious if there are others having issues with mounting USB flash drives, crashes/hangs while using a USB scanner and having a computer unresponsive to a USB KVM when switching. These are all the symptoms I'm seeing with some of our 10.4.8 PPC clients.

Are these USB devices all on the same computer ? Because problems with one of the USB devices on a computer can mean that nothing USB on that computer works correctly. Could you try, for example, pulling the scanner and seeing if this makes the KVM work properly ?

Nope, they're all on different machines. In fact, we have three clients on separate KVMs exhibiting the same non-response when switching back to the problem clients. Then yet another client had issues with a USB scanner and two others with USB thumb drive mounting problems. Hence why I piped up when someone else suggested USB issues with OS X. Oh, and since we using Radmind here all of these clients (well, pretty much every PPC client) is using the same transcript/file set for the system.

The only "fix" I have seen is to reboot the computer with the USB thumb drive still inserted into a port. This makes the OS recognize and mount it. Otherwise it's bupkis. Thanks for the suggestion, though, Simon.

Try replacing IOUSBFamily.kext and IOUSBMassStorageClass.kext with the ones from 10.4.8 (I actually use the ones from 10.4.4 myself because I had them handy).

Don't use the finder (it add's .DS_Store files and does other nasty things), don't use cp (it will crew up dynamic links),

You can do the following to make the archive: (on a 10.4.8 system)

______________________

su; # become root

cd /System/Library/Extensions

tar czpf /10.4.8-USB.tgz IOUSBFamily.kext IOUSBMassStorageClass.kext

# rsync the arcive file to your 10.4.9 systems

______________________

To install on 10.4.9 System:

______________________

su; # become root

cd /System/Library/Extensions

mkdir ../Extensions_disabled

mv IOUSBFamily.kext IOUSBMassStorageClass.kext ../Extensions_saved; # save the 10.4.9 original

tar xzpf /10.4.8-USB.tgz; # expand the archive

rm -f ../Extensions.kextcache ../Extensions.mkext

# now repair permissions and restart the system

______________________

Phil Burk

-- Dale

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References:
	>10.4.9 and USB (2.0) Horkage? (From: "R.A. Hettinga" <email@hidden>)
	>Re: 10.4.9 and USB (2.0) Horkage? (From: Phillip Burk <email@hidden>)
	>Re: 10.4.9 and USB (2.0) Horkage? (From: Simon Slavin <email@hidden>)
	>Re: 10.4.9 and USB (2.0) Horkage? (From: Phillip Burk <email@hidden>)