Failed to restart network.service: Unit not found.

[olivy]

This CentOS 7.5.1804 server has a loopback and ethernet network cards. Upon rebooting the server for maintenance of an unrelated application (OpManager), the network service will not initialize. When attempting to restart network service I get the error:
Failed to restart network.service: Unit not found.

The attachment network-service-failure.PNG is no longer available

Here is the current ifconfig output:

network-service-failure.PNG (2.24 KiB) Viewed 7889 times

I did not change any network scripts configuration. The ethernet network interface is "ens33"

There is no GUI this server is CLI only.

At one point I was able to manually start the interface making it show up under ifconfig command output, but it is not showing up now. Rebooting does not resolve this issue. Why the network service is crashing after a simple reboot is beyond me... Any ideas?

[TrevorH]

Code: Select all

# rpm -qf /etc/init.d/network 
initscripts-9.49.46-1.el7.x86_64

If that file is missing then yum reinstall initscripts

[olivy]

It is and install fails:

yum-install-initscripts.PNG (52.29 KiB) Viewed 7874 times

[TrevorH]

You need to set up your network interface to be able to connect to the internet to be able to use yum.

[olivy]

How do I do that?
Alternatively can I install the software from the install ISO?

[TrevorH]

You can use the iso image if you loopback mount it (or write it to a DVD and have a DVD drive) on one of the mountpoints listed in /etc/yum.repos.d/CentOS-Media.repo (or add your own directory to the list in that file). Then use yum --disablerepo=\* --enablerepo=c7-media reinstall initscripts

[olivy]

Followed these steps:
https://www.itzgeek.com/how-tos/linux/c ... g-dvd.html
By mounting the local repo this way the system would allow me to install initscripts. Reinstall command failed.
Now the ethernet interface came up and I can ping the server.
Thank you for all the help!