日前做CUCM升級(jí)操作時(shí)，遇到如下報(bào)錯(cuò)

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    "Upgrades are prohibited during Licensing GracePeriod"，經(jīng)過資料查找及自己摸索，發(fā)現(xiàn)有兩個(gè)辦法可以解決此問題：

問題現(xiàn)象：

After Disaster Recovery System (DRS) backup is done onthe old server, we DRS restore all the data into the newly replaced server. Thelicense file for old server is valid for 30 days.

During license grace period, you can not proceed due tothe upgrade error message "Upgrades are prohibited during License GracePeriod".

If this error message is seen during a jump upgrade to9.1(2) see CSCuj10105.

解決辦法：

方法一：

此方法是思科給出的解決辦法，方法如下：

If license is uploaded before DRS restore then use thefollowing steps to correct the state of licensing on the system:

1. Remove the rehosted (new) license files using clicommond "file delete xxx.lic"

2. Restart license manager.

3. Re-upload the rehosted (new) license files.

方法二：

既然明確知道此報(bào)錯(cuò)是由于license的問題，那么我們是否可以導(dǎo)入一個(gè)demo license呢？答案是可以；測(cè)試通過！