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我已将操作系统从 升级rhel6到rhel7.7. 升级后，启动时系统显示错误icinga2。
rhel6
rhel7.7
icinga2
这里的错误是：
/usr/lib64/icinga2/sbin/icinga2: error while loading shared libraries: libicuuc.so.42: cannot open shared object file: No such file or directory