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_CFGetHostUUIDString Error WORKAROUND/FIX

This workaround will help you to remove the "_CFGetHostUUIDString: unable to determine UUID for host. Error: 35" error.

1.) BACKUP your /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
2.) Open /Library/Preferences/SystemConfiguration/NetworkInterfaces.plist
3.) ADD AFTER <string>Ethernet</string></dict> the following:
<dict>
<key>BSD Name</key>
<string>en3</string>
<key>IOBuiltin</key>
<false/>
<key>IOInterfaceType</key>
<integer>6</integer>
<key>IOInterfaceUnit</key>
<integer>3</integer>
<key>IOLocation</key>
<string></string>
<key>IOMACAddress</key>
<data>
ABbPoF5V
</data>
<key>IOPathMatch</key>
<string>IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/P0P3@1C,2/
IOPCI2PCIBridge/pci14e4,4311@0/AirPort_Brcm43xx/IO80211Interface</string>
<key>SCNetworkInterfaceType</key>
<string>IEEE80211</string>
</dict>

4.) IF you have more than 3 interfaces or there is an "en3" interface change it to "en4" or a higher number, don't forget to change this "<integer>3</integer>" to "<integer>4</integer>".
5.) You need to REBOOT
6.) If this work for you please tell me.
7.) If this workaround did not work please provide your system.log and your NetworkInterfaces.plist.

Why does this error happen?
Well at looking at the source code of the configd there is a plugin "InterfaceNamer" it seams the plugin will always skip interfaces
that are IOBuiltin = false. The "<key>IOBuiltin</key>" cannot be changed because the plugin will check and restore it on next boot.
But it does not check if wireless interfaces <key>SCNetworkInterfaceType</key><string>IEEE80211</string> are IOBuiltin.
Like I say this is only a workaround and there will be more need of testing.

You will find me on irc

SnE
Related Entries:
_CFGetHostUUIDString Final Extension FIX
Comments (24)  Permalink

Comments

Raul @ 10.11.2007 17:22 CET
If this works, you will be a hero, you can't imagine how many people are fussing about this on the forums and IRC including me.
Raul @ 10.11.2007 17:54 CET
Hey, a quick report. Just tried this and rebooted with mixed results. The good; now I dont get that irritating cfg uuid error 35 when running commands in terminal. The bad - I still get the cgg uuid errors in system.log.

It appears the errors are happening during the boot process but not after booting up in the gui.

Let me reboot again and see.
Favlex @ 10.11.2007 23:33 CET
Yes.the same as Raul..I must boot with -v to see if it is gone on booting at least.
Thanks indeed.
iawval @ 22.11.2007 08:14 CET
Hero! no less the irritating message is gone.
You solved what the big gurus could not.
Thank you
iawval @ 22.11.2007 08:14 CET
Hero! no less the irritating message is gone.
You solved what the big gurus could not.
Thank you
ettore @ 22.11.2007 18:03 CET
sneosx86 i have write request to you but nothing response.
Please help me.
Ettore
ic3m0nst3r @ 07.12.2007 11:20 CET
this works for me! hackintosh
ASUS A8Fm Notebook Running Leopard!

thanks!
orangesauce @ 23.12.2007 08:59 CET
Jah man, werked like a charm!
treamy @ 22.01.2008 02:24 CET
thanks!

works fine!
roberto @ 10.02.2008 21:27 CET
Thanks, it worked great, altough I had only en0 and en1 so I added that entry as en2 and it worked just fine.

THANKS AGAIN I CAN NOW USE pbpaste + TextMate to blog :) w00t
anonniemouse @ 13.06.2008 16:23 CET
It works - on Leopard 10.5.2 :-)

Thanks!
jnk @ 23.07.2008 10:45 CET
hi , trying to apply your fix , however after each reboot, NetworkInterface.plist gets returned to it previous state. I have changed file property to set to read-only [0444] but with no joy. Just wondering how I can made the change permanent.
Ben @ 05.08.2008 09:40 CET
Worked like a charm on 10.5.4 vanilla (Kalyway 10.5.2 -> Kalyway 10.5.3 comboupdate -> apple 10.5.4). Thank you.
AccutEremeLet @ 11.10.2008 13:47 CET
Hello.
:) The natural photo of the new arrival, taken by Emma Tallulah's dad,
Bye.
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NTICompass @ 09.11.2008 23:08 CET
WOW, That actually worked :D

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