Software Update Installers

swwack91

macrumors 6502a
Original poster
Jan 28, 2007
735
23
New Jersey
Just a curiosity and wanting to save HDD space -

If I were to download Mac OSX updates manually, I'd download the installer, install it, then trash the installer package file.

But I don't and I use Software Update. Does Software Update trash the installer after its done installing or does it keep all the packages from all the updates it has installed somewhere?

If it keeps them, where are they and can I delete them?
 

devman

macrumors 65816
Apr 19, 2004
1,240
4
AU
They're not kept. Check /Library/Caches/com.apple.SoftwareUpdate if you really care. And in tmp/501/...

There are package receipts that are kept though - and you don't want to delete those.
 

swwack91

macrumors 6502a
Original poster
Jan 28, 2007
735
23
New Jersey
what exactly is a package receipt?

and can i delete them if they're from software that i've since uninstalled? (not talking about the updates)
 

devman

macrumors 65816
Apr 19, 2004
1,240
4
AU
/Library/Receipts

No, don't delete them. They are small and you're just messing around with the system for no good reason.

Software update uses them to track what is installed and what needs to be installed. Installers use them to determine if something is a new install or an upgrade. The installer also uses them for pre-req checks when doing an install. Repair permissions uses them to check the default permissions of files.