Virt-install setting hostname as extra args not working

[john doe <johndoe65534@mail.com>]

Debians,

I'm trying to install debian buster using libvirt, this works well
withthe the exception of being able to set the hostname in the guest.


virt-install --debug --name=try05 --ram=1024 --noreboot
--disk=path=/var/lib/machines/try/try05,size=6 --graphic none
--os-variant=debian10 --boot menu=on,useserial=on --network
bridge=br0,mac=RANDOM --location
https://deb.debian.org/debian/dists/stable/main/installer-amd64/
--extra-args "console=ttyS0,115200n8 DEBIAN_FRONTEND=text auto=true
priority=critical hostname=try05 url=tftp://tftpserver";


After installation, the hostname (try05) is not defined in the guest.

What am I missing?


P.S.

I have already posted this to the debian-user list but to no avail.
So I'm hoping that someone will be able to help me out in hear.

--
John Doe