it seems that we have hit a couple of problems/questions regarding sles10 update through a proxy during autoinstallation.
sles10 with sles10_root_fix_v0.4 applied was used;
1. autoinstallation profile has both <customer_center> and valid proxy set. unfortunately, an attempt to register at ncc during autoinstallation fails - it does not use proxy as configured in yast/autoyast. it seems that this proxy is not exported to profile early enough, as adding "export http_proxy=<valid proxy>" allows registering to proceed.
that seems a bit hackish approach, so maybe there is another, better way to solve this issue ?
2. update itself requires another way of a proxy setting, "rug set proxy-url". is there a way to force rug to use a proxy specified in environment variable or maybe there is a separate setting in the profile available (though using the proxy set through yast/variables would be preferred :) )