Arch Linux

solskog

Member

Registered: 2020-09-05

Posts: 414

headless install a kvm guest via ssh

I am installing a kvm guest using live usb image from qemu-headless package inside a physical headless machine.

qemu-system-x86_64 ...
-netdev user,id=guest1,hostfwd=tcp::22222-:22

So that I tried with

ssh -p22222 root@localhost

The problem is archlinux live USB image has a default empty root password
And the default /etc/ssh/sshd_config has PermitEmptypasswords option set to NO.

Zod

Member

From: Hoosiertucky

Registered: 2019-03-10

Posts: 629

Re: headless install a kvm guest via ssh

https://wiki.archlinux.org/title/Instal … ux_via_SSH

solskog

Member

Registered: 2020-09-05

Posts: 414

Re: headless install a kvm guest via ssh

The solutions provided requires modification of /etc/ssh/sshd_config or using cloud-init custom build image. I am looking for a solution that can login me into kvm guest from host machine without modification of the standard live USB image.
something like this, but couldn't get it right.

qemu-system-x86_64 -serial stdio -kernel vmlinuz -hda wheezy.img -append "root=/dev/sda console=ttyS0"

Maniaxx

Member

Registered: 2014-05-14

Posts: 738

Re: headless install a kvm guest via ssh

You don't need to alter the original image. But you probably have to provide a 2nd image/USB-Stick/etc with the cloud-init configuration to set up the sshd (as stated in the wiki).
If you don't know how to set up QEMU try 'virt-manager' as a template manager. You can grab its qemu commands out of the logs if you want to go back to console.

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sys2064