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Jt0
n00b
Joined: 28 Oct 2018
Posts: 33
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 Posted: Wed Apr 24, 2019 1:06 pm Post subject: Unable to set up networking in virt manager for Fedora VM |
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I'm trying to set up networking for a Fedora 30 VM in virt-manager but none of the options work for me. I'm on a laptop that is currently connected to the local network via wifi.
I tried setting up the wireless adapter as follows:
Network source: "Host device wlo1: macvtap"
Source mode: "Bridge"
Device model: "virtio"
I've tried this with "Passthrough" source mode too but I get an error when trying to start the VM with that setup:
| Code: | Error starting domain: Cannot set interface MAC to aa:bb:cc:11:22:33 on 'wlo1': Device or resource busy
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in cb_wrapper
callback(asyncjob, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb
callback(*args, **kwargs)
File "/usr/share/virt-manager/virtManager/libvirtobject.py", line 66, in newfn
ret = fn(self, *args, **kwargs)
File "/usr/share/virt-manager/virtManager/domain.py", line 1400, in startup
self._backend.create()
File "/usr/lib64/python3.6/site-packages/libvirt.py", line 1089, in create
if ret == -1: raise libvirtError ('virDomainCreate() failed', dom=self)
libvirt.libvirtError: Cannot set interface MAC to aa:bb:cc:11:22:33 on 'wlo1': Device or resource busy |
Originally, bridge mode didn't work either (it gave an "operation not supported" error) but after I built and installed the kernel with the macvtap modules referenced in this answer on StackExchange the error went away. Now when I start up Fedora, Network Manager will try to connect to "Wired Connection 1" for a couple of minutes with the message "Settng network address" shown beneath the network in the Network Manager menu. After this it gives up.
What else do I need to do to get networking functioning for this VM? |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54320
Location: 56N 3W
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| Posted: Wed Apr 24, 2019 6:23 pm Post subject: |
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Jt0,
Do you have USE=virt-network set on app-emulation/libvirt on the host?
I use bridge mode in the guests.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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Jt0
n00b
Joined: 28 Oct 2018
Posts: 33
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| Posted: Wed Apr 24, 2019 8:13 pm Post subject: |
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| Yes, one of the things I tried before enabling the macvtap modules was looking at the USE flags for virt-manager, libvirt, and qemu (not sure if qemu is relevant when using virt-manager, but I checked for any networking-related flags anyway). Setting it and recompiling didn't change anything. |
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NeddySeagoon
Administrator
Joined: 05 Jul 2003
Posts: 54320
Location: 56N 3W
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| Posted: Wed Apr 24, 2019 8:40 pm Post subject: |
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Jt0,
I run a HP Microserver (Gen 7) as a host for KVMs
Its kernel .config is stripped down the the bare essentials for doing nothing else.
Everything that the machine runs is in a KVM.
Its unlikely you can use it as is but looking if over may give you some ideas.
As my guests are Gentoo I use virtio everywhere. I don't know if Fedora 30 supports that.
QEMU supports emulated hardware for guests.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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