subscription problem at the installation of RHEL 7.3

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Hi,

Something goes wrong when I have installied REHL 7.3 for developers. The network manager seems not to be installed and if I want to install it, it's impossible because "this system is not registered"!... I am completly blocked... If I try to register, I got the error: "network problem. unable to connect to server"...
I have tried to reinstall (may be I have missed something) but I dont know how I can define to reboot on the cdrom media...
What can I do ?

Georges

Responses

Hello, what happens if you enter this into a terminal:

# nmtui

If you have a desktop, try to start it: press the Super key to enter the Activities Overview, type network connections or nm-connection-editor and then press Enter.

See Interacting with NetworkManager.

If the above does not help you, you can try to bring up the interface using the command line.:

# ip a

Look for the interface device name, for example eth0 or em1, and then try to bring it up:

# ifup ethX

Servers generally are not configured by default to bring up the interface (because ONBOOT=no). See Configuring a Network Interface Using ifcfg Files.

Thank you very much Stephen. I am now registered, but i have just a text based login screen and I have tried to get a graphical one but when I use "yum groupeinstall 'sever with GUI'" the foolowing error message is displayed: "this system is registered to Red Hat Subscription Management, but is not receiving updates..." :( (yum repolist all :--> repolist: 0) Is there any way to go on a little bit forward Many thanks

Hello, after registering you need to attach some subscriptions.

# subscription-manager list --available
# subscription-manager attach --pool=pool_id

This process is explained in the section Registering the System and Attaching Subscriptions of the Red Hat Enterprise Linux 7 System Administrator's Guide.

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