In the output of rpm -Va, the U flag means the owner of that file has changed , and the G flag means the group of that file has changed.
http://linux.vbird.org/linux_basic/0520rpm_and_srpm.php
Interesting part:
至於最前面的八個資訊是:
•. S : (file Size differs) 檔案的容量大小是否被改變
•. M : (Mode differs) 檔案的類型或檔案的屬性 (rwx) 是否被改變?如是否可執行等參數已被改變
•. 5 : (MD5 sum differs) MD5 這一種指紋碼的內容已經不同
•. D : (Device major/minor number mis-match) 裝置的主 / 次代碼已經改變
•. L : (readLink(2) path mis-match) Link 路徑已被改變
•. U : (User ownership differs) 檔案的所屬人已被改變
•. G : (Group ownership differs) 檔案的所屬群組已被改變
•. T : (mTime differs) 檔案的建立時間已被改變
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