Hi, Duncan, Thanks for your quick reply. I've have a look of apt now. >> 2, Have a look of the new upgraded rpms, see if there is a need to >> rebuild some of them. If so, install source rpms, then twist .spec >> files, and rebuild to get customized binary rpms. >hmmm. you may want to have apt-mirror grab those SRPMS too. but how >would you determine if you need to rebuild from a SRPM? We tuned some rpms. like "large-file support" for default perl. Thanks again. --Guolin Cheng