Follow Techotopia on Twitter

On-line Guides
All Guides
eBook Store
iOS / Android
Linux for Beginners
Office Productivity
Linux Installation
Linux Security
Linux Utilities
Linux Virtualization
Linux Kernel
System/Network Admin
Scripting Languages
Development Tools
Web Development
GUI Toolkits/Desktop
Mail Systems
Eclipse Documentation

How To Guides
General System Admin
Linux Security
Linux Filesystems
Web Servers
Graphics & Desktop
PC Hardware
Problem Solutions
Privacy Policy




Red Hat Enterprise Linux 9 Essentials Book now available.

Purchase a copy of Red Hat Enterprise Linux 9 (RHEL 9) Essentials

Red Hat Enterprise Linux 9 Essentials Print and eBook (PDF) editions contain 34 chapters and 298 pages

Preview Book

29.4. What to do if the guest operating system has been booted with virt-manager or virsh

As mentioned in the installation notes, a guest operating system with network para-virtualized drivers installed must be started using the “# xm create GuestName” command. You can only use other methods for starting the guest in Red Hat Enterprise Linux 5.2.
If the guest operating system has been booted using the virt-manager(the GUI tool) or virsh(the command line application) interface the boot process will detect the “new” old Realtek card. This due to the fact libvirt, as the underlying API to virt-manager and virsh, will always add type=ioemu to the networking section followed by prompting the systems administrator to reconfigure networking inside the guest. In the event of the guest operating system has booted all the way to multi-user mode you will detect that there is no networking active as the backend and frontend drivers are not connected properly.
To fix this issue, shut down the guest and boot it using “virsh start”. During the boot process kudzu (the hardware detection process) will detect the “old” Realtek card. Simply select “ Remove Configuration ” to delete the Realtek card from the guest operating system. The guest should continue to boot and configure the network interfaces correctly.
You can identify if your guest has been booted with virt-manager, virsh or “xm create” using the command “# xm list –long YourGuestName
In the screenshot below you can see the entry “ioemu” highlighted in the “device vif” (networking) section. This would mean the guest was booted with virt-manager or virsh and networking is not configured correctly, that is, without the para-virtualized network driver.
In the screenshot below you can see there is no “type ioemu” entry in the “device vif” section so you can safely assume the guest has been booted with “xm create YourGuestName”. This means networking is configured to use the para-virtualized network driver.

  Published under the terms of the GNU General Public License Design by Interspire