%general-entities; ]> Currently, the /tools and /cross-tools directories are owned by the user lfs, a user that exists only on the host system. Although the /tools and /cross-tools directories can be deleted once the LFS system has been finished, they can be retained to build additional LFS systems. If the /tools and /cross-tools directories are kept as is, the files are owned by a user ID without a corresponding account. This is dangerous because a user account created later could get this same user ID and would own the /tools directory and all the files therein, thus exposing these files to possible malicious manipulation. chown -R 0:0 /tools chown -R 0:0 /cross-tools The commands use 0:0 instead of root:root, because chown is unable to resolve the name root until the passwd file has been created.