When installing the first RPM package, the /etc/ima/digest_list directory is not existed. As a result, the /etc/ima/digest_lists/0-metadata_list-rpm-* file fails to be generated. In openEuler 22.03, the first RPM package installed is libgcc, which cause IMA failed to measure libgcc_s.so.

当安装第一个rpm包时，系统中没有/etc/ima/digest_list目录，会导致/etc/ima/digest_lists/0-metadata_list-rpm-*文件生成失败。22.03第一个安装的rpm包是libgcc，在开启IMA度量的情况下，libgcc度量失败。