Hi, I've searched through the mailing list archives and came across a few hints at what I need to do to upgrade a server I manage. This "upgrade" is really a total clean out to a new version of Mandrake 9.0 from Mandrake 8.1. HDDs in the server are getting replaced with much bigger ones. I've made some rather detailed plans for the weekend job. But, one thing I'm not too sure about is how do I backup the SID Machine Account information, if that is at all possible. I'm guessing there is more to this than just saving the /etc/samba/smbpasswd file. Going from Mandrake 8.1, there is no BDC to help with regenerating all the SID's to the new server. I'd rather not laboriously go around to every PC rejoining the PCs to the DOMAIN as there are way too many and could take up more than the weekend to do. Any hints on this would be excellent. Addey http://movies.yahoo.com.au - Yahoo! Movies - What's on at your local cinema?