报错信息：
解决办法：
[root@controller ~]# yum install -y yum-utils Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Resolving Dependencies There are unfinished transactions remaining. You might consider running yum-complete-transaction, or "yum-complete-transaction --cleanup-only" and "yum history redo last", first to finish them. If those don't work you'll have to try removing/installing packages by hand (maybe package-cleanup can help). The program yum-complete-transaction is found in the yum-utils package. --> Running transaction check ---> Package yum-utils.noarch 0:1.1.31-50.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================================================================= Package Arch Version Repository Size ======================================================================================================================================= Installing: yum-utils noarch 1.1.31-50.el7 openstack 121 k Transaction Summary ======================================================================================================================================= Install 1 Package Total download size: 121 k Installed size: 337 k Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : yum-utils-1.1.31-50.el7.noarch 1/1 Verifying : yum-utils-1.1.31-50.el7.noarch 1/1 Installed: yum-utils.noarch 0:1.1.31-50.el7 Complete! [root@controller ~]# yum clean all Loaded plugins: fastestmirror Cleaning repos: centos openstack Cleaning up everything Maybe you want: rm -rf /var/cache/yum, to also free up space taken by orphaned data from disabled or removed repos Cleaning up list of fastest mirrors [root@controller ~]# yum-complete-transaction --cleanup-only Loaded plugins: fastestmirror Determining fastest mirrors centos | 3.6 kB 00:00:00 openstack | 2.9 kB 00:00:00 (1/3): centos/group_gz | 166 kB 00:00:00 (2/3): openstack/primary_db | 1.4 MB 00:00:00 (3/3): centos/primary_db | 3.1 MB 00:00:00 Cleaning up unfinished transaction journals Cleaning up 2020-11-10.15:55.58 [root@controller ~]#
