Re: Set hostname of guest during installation time

On 27. 3. 2020 17:23, john doe wrote: > On 3/27/2020 5:13 PM, Michal Prívozník wrote: >> On 27. 3. 2020 16:48, Michal Prívozník wrote: >>> On 27. 3. 2020 14:57, john doe wrote: >>>> Hi, >>>> >>>> I would like to set the hostname when installing a guest, with the below >>>> command the hostname is not set to 'try06' in the guest: >>>> >>>> virt-install --name=try06 --graphic none --pxe --network bridge=virbr0 >>> >>> This is the name of the guest registered in libvirt. I don't think that >>> virt-install has wired up setting hostname, but it looks like it can do >>> it. I mean, use --name for both libvirt name and guest hostname. >> >> On the other hand, users might want to set it to something else. So we >> really should have a separate argument for that. Anyway, I've reported >> it to virt-install developers: >> >> https://github.com/virt-manager/virt-manager/issues/94 >> > > Many thanks for your answer and for passing it along. > > I agree, an option to trigger this behavior is best. > > After executing the above command and before the hostname step, the > following workaround seems to work: > > $ virsh net-dhcp-leases default > Expiry Time MAC address Protocol IP address > Hostname Client ID or DUID > ----------------------------------------------------------------------------------------------------------------------------------------------- > 2020-03-27 18:03:36 52:54:00:9d:d1:e7 ipv4 192.168.122.45/24 > - ff:00:9d:d1:e7:00:01:00:01:26:10:e0:58:52:54:00:9d:d1:e7 > > $ virsh net-update default add ip-dhcp-host "<host > mac='52:54:00:9d:d1:e7' name='try06' ip='192.168.122.45'/>" > > > What I am not sure about is how to predetermine the MAC address of the > guest before starting the installer? You can switch the steps and generate a MAC address yourself, then update the network and then specify it on virt-install cmd line. Or even better, do not bother with any of this and use libvirt-nss plugin: https://libvirt.org/nss.html