Hello,
[Ich schreib auf englisch,
weil Du nicht der Einzige mit diesem Problem bist, ok?]
I had the same problem since 10.2.7 and found a workaround
only today :-)
Actually this problem may happen with ANY download via the
software update process.
Solution for those who know UNIX:
Set the sticky bit on the /tmp directory.
More explicitly for the rest of us:
0.) Quit Software Update.
1.) open a terminal window (find it in Applications/Utilities/Terminal)
2.) type "cd /private" (no quotes, no space after the slash)
3.) type "pwd". The result should be a line saying "/private".
4.) If this is not the case do NOT continue.
5.) type "sudo rm -rf tmp/*"
6.) You will be asked for your password.
NOTE: THIS DELETES SOME FILES. These are temporary files which
should not be important. However, you have been warned.
7.) type "sudo chmod 777 tmp"
8.) type "sudo chmod +t tmp"
(the last two steps should not produce any output)
9.) type "ls -ld tmp"
This should give a single line starting with "drwxrwxrwt".
The "t" is the key thing here!
10.) Run Software Update. Good luck! :-)
Please let me know if that worked.
If it did not, please post the content of the terminal window.
Cheers,
Roman.
-----
And now some keywords, so other people can find us on the web, too.
TemporaryItems/com.apple.SoftwareUpdate
macosx
permission denied
Software Update