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10.6: Solve a prohibited-to-boot icon at startup
Authored by: mikeromo on Mar 24, '10 04:05:18PM

hi guys--
So, I just wanted to give you an update.

1 - What's happening is that the uninstaller is not removing a file, "SymIPS.kext" - which is located here:/System/Library/Extensions

2 - So, if you are trying to Uninstall the product, it will not uninstall that file, which the system think it needs in order to boot, hence the "do not enter" sign.

3 - The reason this is happening is that we had to delay our IPS update because we needed to do a bunch of work to make sure the protection it dealt with worked for PowerPC and on 10.4 machine and a few other issues. That update is now finished and we are going to post it either today or tomorrow.

What this means is that when users run LiveUpdate, this "SymIPS.kext" file will be updated correctly and then the uninstaller will be able to remove it without problems. This means that the issue will have been resolved.

If you are reading this before that update goes out (I am writing this at 3:42pm PST on March 24) and you have uninstalled NIS and your machine is hosted with the "do not enter" sign:

Boot with the <shift> key down to enter safe mode
Open the Terminal in /Applications/Utilities
In the Terminal type cd /System/Library/Extensions
Type sudo rm -r SymIPS.kext and press Return/Enter

Restart your Macintosh normally

I cannot stress enough that this issue will be resolved as soon as users update their vulnerability protection via LiveUpdate. This update will be available tomorrow. The IPS engine updates automatically every Friday, but if users run LiveUpdate manually, they'll get the update fine.

Obviously this is really frustrating for users who want to uninstall their software only to have their machine hosed. I apologize for this and the fix will be out tomorrow.


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