unable to connect to the guest VM instance running Ubuntu 18.04

[Erik Skultety]

On Wed, Aug 04, 2021 at 08:54:13PM +0530, Kaushal Shriyan wrote:
> Hi,
> 
> #cat /etc/redhat-release
> CentOS Linux release 7.8.2003 (Core)
> #virt-install --version
> 1.5.0
> #virt-install -n snipeitassetmanagementubuntu --ram 8096 --vcpus 2
> --virt-type kvm --os-type linux --os-variant ubuntu18.04 --graphics none
> --location '
> http://archive.ubuntu.com/ubuntu/dists/bionic/main/installer-amd64/'
> --extra-args "console=tty0 console=ttyS0,115200n8" --disk
> path=/linuxkvmguestosdisk/snipeitassetmanagementubuntu.img,size=30
> 
> I am unable to connect to the guest VM instance. Any clue and i look
> forward to hearing from you. Thanks in advance.

Can you elaborate on what connection type is not working for you - serial
console or SSH?
I will presume you're talking about the former in which case
--extra-args "console=..." is not a permanent setting, it is only placed on the
kernel cmdline the first time the machine boots, IOW when it's being installed.
That's how '--extra-args' works. Afterwards, the args will be lost, so you need
to use some kind of automation management SW like Ansible to tweak the grub
config after the OS installation if you want to keep using serial console.

If by any chance you were talking about the latter, then I guess you haven't
installed the SSH server in the VM.

Regards,
Erik