安装补丁出错!

ccas

sco 505 我在打 rs505a oss600a 补丁时，出现错误是什么原因呀

patch "sco:unixds rs505a.unixds511.1.0a" can not be applied to
"sco:unixds 5.1.1a". component is in an invalid state


patch"sco:unixds oss600a.unixds511"can not be applied
to "sco:unixds 5.1.1a" com