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Grey screen after recent OS X 10.4 Security Update

Ran Software Update on mother's iMac (20"/2.0GHZ/1GB/250GB - at least 200GB free, running 10.4). Many updates (Safari, Flash, Security Update, whose number I did not get...). Message that one update could not be installed, did not say which one. Computer will no start up (grey screen). Started up from Disk 1, repaired Permissions, ran Disk Repair, which indicated no repairs needed. Removed only peripheral (ADSL modem) & ran Safe Boot; it stalls. Last four lines are:

CSRHIDTransitionDriver::probe: -v
CSRHIDTransitionDriver::start before command
IOBluetoothHCIConroller::start Idle Timer Stopped

Reset PRAM and NVRAM. All to no avail. Am left considering Archive and Install, which I have not done before.

I assume the problem is with the most recent updates and in particular which ever one failed to load. Any advice before I proceed with Archive and Install?

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Bit more information...

In reply to: Grey screen after recent OS X 10.4 Security Update

OS is 10.4.11 Ran Safe Boot second time. Now, final message before it stalls is:

Extension "" has no kernel dependency.

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Archive and install

In reply to: Bit more information...

may be the better option here.

Make sure you preserve user settings (Options)and all the unnecessary languages (Customize) before you pull the trigger.


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