operating system permissions. SQLSTATE=08001

今天給一個安裝了db2的虛擬機加了內存，結果啓動後就連不上，報如下錯誤

SQL1639N  The database server was unable to perform authentication because 
security-related database manager files on the server do not have the required 
operating system permissions.  SQLSTATE=08001

找了一篇文章https://www.jianshu.com/p/8f4cc56bca45

但是沒有解決問題，依然報錯

然後又接着找，找到了這個https://www.cnblogs.com/OliverQin/p/5852897.html

按照這個執行後，成功了，注意：執行以上命令前先用db2inst1關閉數據庫db2stop，否則會報錯