Set hostname of guest during installation time

[john doe]

On 3/27/2020 5:28 PM, Michal Prívozník wrote:
> 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
>

Okay, I have installed the pluging, do you mind explaning how this
should work?:

$ grep host /etc/ns*
hosts:          files libvirt_guest dns


If I'm correct, following your example, I should be able to do:

 $ host try06

What am I missing.


Thanks again for your help.

--
John Doe