debuginfo-install: command not found

[root@localhost yum.repos.d]# debuginfo-install glibc-2.17-307.el7.1.aarch64 libgcc-4.8.5-39.el7.aarch64 numactl-libs-2.0.12-5.el7.aarch64
-bash: debuginfo-install: command not found
[root@localhost yum.repos.d]# ls
bak  local.repo
[root@localhost yum.repos.d]# ls bak/
CentOS-Base.repo  CentOS-Debuginfo.repo  CentOS-Media.repo    CentOS-Vault.repo
CentOS-CR.repo    CentOS-fasttrack.repo  CentOS-Sources.repo
[root@localhost yum.repos.d]# yum whatprovides debuginfo-install
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
yum-utils-1.1.31-50.el7.noarch : Utilities based around the yum package manager
Repo        : local
Matched from:
Filename    : /usr/bin/debuginfo-install



[root@localhost yum.repos.d]# yum install yum-utils

[root@localhost yum.repos.d]# yum whatprovides debuginfo-install
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
yum-utils-1.1.31-50.el7.noarch : Utilities based around the yum package manager
Repo        : local
Matched from:
Filename    : /usr/bin/debuginfo-install

yum install yum-utils

debuginfo-install glibc-2.17-307.el7.1.aarch64 libgcc-4.8.5-39.el7.aarch64 numactl-libs-2.0.12-5.el7.aarch64  不能通过本地挂载，要网络访问