If Spotlight still slow after applying 10.7.5 Supplemental Update

In my case, after applying 10.7.5 Supplemental Update and restarting Spotlight was slow: it startred well, but after a few minutes in the console I still had "mdworker cannot talk to lsboxd" messages and all mds, mdworker processes were at 0% cpu usage in Activity Monitor.

What I did was to "clean things up" in order to remove cruft from the previous faulty infrastructure and start realle afresh, so I

1. Deactivated spotlight from the command line (sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist)
2. Removed the spotlight index (sudo rm -rif /.Spotlight-V100 be careful to type this correctly, otherwise you risk to delete your whole boot partition)
3. Quit all applications, removed the /var/folders directory (this is only caches and temporary files, you can actually only remove the spotlight and sandbox related ones), rebooted immediately.
4. Reactivated spotlight from the command line (sudo launchctl load -w /System/Library/LaunchDaemons/com.apple.metadata.mds.plist).

Spotlight started working immediately and in about 2 hours it indexed a drive with 500 Gb data, some quite rich (40 Gb of a PDF/PS library, lots of music and pics, several millions of lines of source code).

I did not have to restart in Safe Mode - which was a blessing since I am using FV2 and Safe Mode is thus disabled. I haven't checked Time Machine yet.

Roberto