误操作yum导致error: rpmdb解决方法
错误：
[root@cly ~]# yum inatall
error: rpmdb: BDB0113 Thread/process 18967/139716328294400 failed: BDB1507 Thread died in Berkeley DB library
error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery
error: cannot open Packages index using db5 - (-30973)
error: cannot open Packages database in /var/lib/rpm
CRITICAL:yum.main:
Error: rpmdb open failed
原因：rpm数据库损坏。
解决方法:
（重新构建rpm数据库）：
[root@cly ~]# cd /var/lib/rpm
[root@cly rpm]# ls
[root@cly rpm]# rm -rf __db*
[root@cly rpm]# rpm --rebuilddb
