site_archiver@lists.apple.com Delivered-To: installer-dev@lists.apple.com On May 24, 2008, at 3:42 PM, Andy O'Meara wrote: Thanks for the suggestions, Kevin. Unfortunately, I now realize that our little app runs under sudo root, it doesn't even matter if it know the right dir since any files or dir it creates will get tainted with root permission/ownership. Basically, this seems to rule out being able to write any files once the installer is in preflight (since its sudoed at that point). The only idea I have remaining is launching my app using sudo -u, which would solve the FindFolder() issue as well as the file owner/ permissions issue. The only thing left, however, is to choose the most reliable method to to get the username (or uid). The most obvious method would be the following in preflight: MY_RESULT=`sudo -u "${USER}" "$1/Contents/Resources/MyApp.app/ Contents/MacOS/MyApp"` Does anyone see any issues with this for use in 10.3 and later? Is it safe for me to be using USER? Apple frequently uses su -c ${USER}, which is very close to the same thing. We use su instead of sudo because (if I recall correctly) sudo can be configured to require keyboard confirmation to work, and that would screw up a postflight script in at least some cases. But yes, for all the kinds of scripts you write, su -c ${USER} is reliable and should keep working for quite some time. _______________________________________________ Do not post admin requests to the list. They will be ignored. Installer-dev mailing list (Installer-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/installer-dev/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com