10.6.4 update issues - fixed, sharing the steps

Installation of the 10.6.4 Combo update was failing. Logs reflected the following:

+6/20/10 8:28:02 PM installd[1814] PackageKit: Install Failed: PKG: extracting "com.apple.pkg.update.os.10.6.4.combo"+
+Error Domain=PKInstallErrorDomain Code=110 UserInfo=0x102f12670 "An error occurred while extracting files from the package “MacOSXUpdCombo10.6.4.pkg”." Underlying Error=(Error Domain=NSPOSIXErrorDomain Code=23 UserInfo=0x105a81e60 "*The operation couldn’t be completed. Too many open files in system*") {+
+NSFilePath = "/var/folders/zz/zzzivhrRnAmviuee ++++++++++/-Tmp-/PKInstallSandbox-tmp/Root";
+NSLocalizedDescription = "An error occurred while extracting files from the package \U201cMacOSXUpdCombo10.6.4.pkg\U201d.";+
+NSURL = "#MacOSXUpdCombo10.6.4.pkg -- file://localhost/Volumes/Mac%20OS%20X%2010.6.4%20Update%20Combo/MacOSXUpdCombo10 .6.4.pkg";+
+NSUnderlyingError = "Error Domain=NSPOSIXErrorDomain Code=23 UserInfo=0x105a81e60 \"The operation couldn\U2019t be completed. Too many open files in system\"";+
+PKInstallPackageIdentifier = "com.apple.pkg.update.os.10.6.4.combo";+
}

With a sprinkling of kernel messages nearby:
+6/20/10 8:27:56 PM kernel file: table is full+

Problem is pretty straightforward--too many files open. Google suggests it's a soft limit set by the kernel. Default looks to be 2,000 files.

I ran the following in Terminal to temporarily set the soft limit to 10,000 files:
*sudo sysctl -w kern.maxfiles=10000*
*sudo sysctl -w kern.maxfilesperproc=10000*

(Note: These changes revert after a reboot.)

Reran the update and it installed without issue.

Hope this helps.