问题背景
针对系统漏洞扫描，对部分包进行rpm -Uvh升级时报如下的错误：
[root]# rpm -Uvh polkit-0.112-26.el7_9.1.x86_64.rpm
error: db5 error(11) from dbenv->open: Resource temporarily unavailable
error: cannot open Packages index using db5 - Resource temporarily unavailable (11)
error: cannot open Packages database in /var/lib/rpm
warning: polkit-0.112-26.el7_9.1.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
error: db5 error(11) from dbenv->open: Resource temporarily unavailable
error: cannot open Packages database in /var/lib/rpm此报错是因为rpm的库被损坏，需要重建rpmdb库。
处理步骤
删除rpmdb库
[root]# cd /var/lib/rpm
[root]# rm -fr __db.*重建rpmdb库
[root]#rpm --rebuilddb
[root]#yum clean all
[root]#yum makecache升级包polkit包
[root]# rpm -Uvh sudo-1.9.5-3.el7.x86_64.rpm
Preparing... ################################# [100%]
Updating / installing...
1:sudo-1.9.5-3.el7 warning: /etc/sudoers created as /etc/sudoers.rpmnew
################################# [ 50%]
Cleaning up / removing...
2:sudo-1.8.23-3.el7 ################################# [100%]标签：11,temporarily,unavailable,open,root,报错,error,rpm From： https://www.cnblogs.com/haha029/p/17097369.html