Thanks to David M. Cooke for reporting the build.hdlist.site.sh bug. There are a few bugs in the "site" building code for SL 41. I have updated the broken scripts . I have updated the following files on ftp://ftp.scientificlinux.org/linux/scientific/41/$arch/sites/example/build/scripts make.updates.img.sh Minor change, only needed if you use RHupdates for patches to anaconda upd-instroot build.release... was not finding custom rpms for install except for the kernel This is actually a file from anaconda-runtime. If it is placed in the build/scripts directory it overrides the version in the anaconda-runtime rpm. I have updated this in the next version of anaconda-runtime . build.hdlist.site.sh change from $SITEDIR to $SITE, need anaconda-runtime >= 10.1.1.19-1SL.i386.rpm -Connie Sieh