Cannot update kvmagent dependencies

[nexus]

Problem description:
The physical machine is disconnected after a power off operation, and the reconnection of the physical machine fails with the error message: no zstack-mn repo found, cannot update kvmagent dependencies

Problem analysis:

1. Log in to the console of the disconnected physical machine and switch to the yum.repos.d directory:

cd /etc/yum.repos.d

2. Check the zstack-mn.repo file and find that there is no content in it

Problem handling process:

1. Log in to the management node, check the zstack-mn.repo file, and find that there are relevant source configurations. Copy a copy of the zstack-mn.repo file of other normally connected compute nodes to the /etc/yum.repos.d directory of the disconnected node

2. Reconnect the physical machine, and the error message indicates that the qemu-kvm-ev.repo file is missing. Copy a copy of the qemu-kvm-ev.repo file of the management node to the yum.repos.d directory of the disconnected physical machine.

3. Reconnect the physical machine again, and the physical machine is successfully connected.