An administrator is defining an lpp_source calledlpp_AIX6 in NIM when the following warning message is displayed in the output:warning: 0042-267 c_mk_lpp_source: The defined lpp_source does not have the 'simages' attribute because one or more of the following packages are missing:
Bos bos.net bos.diag bos.sysmgtbos.terminfo bos.terminfo.all.data bos.mp64 devices.common bos.64bit.
What does this warning message mean?（）