libvirt users - Dec 2020 - Installing Kali Linux as Guest OS in KVM Hypervisor

Hi,

I have run the below command to install Kali Linux using
linux-2020.4-installer-amd64.iso from https://www.kali.org/downloads/

#virt-install --name kalilinux --memory 4096 --vcpus=2
--location=/linuxkvmaddgbdisk/kali-linux-2020.4-installer-amd64.iso,kernel=install.amd/gtk/vmlinuz,initrd=install.amd/gtk/initrd.gz
--network=bridge:br0 --os-type=linux --os-variant=debian9 --graphics=none
--extra-args "console=ttyS0" -v --disk
path=/linuxkvmaddgbdisk/kalilinux.img,size=50

I am not able to get the root login prompt when I run the below command to
set IP and hostname for the guest OS. Am I missing any parameters from the
above virt-install command to install Kali Linux as Guest OS in KVM
Hypervisor?

#virsh console kalilinux
Connected to domain kalilinux
Escape character is ^]

Any help will be highly appreciated. I look forward to hearing from you.
Thanks in Advance.

Best Regards,

Kaushal
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On 12/1/20 5:28 PM, Kaushal Shriyan wrote:
> Hi,
> 
> I have run the below command to install Kali Linux using
> linux-2020.4-installer-amd64.iso from https://www.kali.org/downloads/
> 
> #virt-install --name kalilinux --memory 4096 --vcpus=2
>
--location=/linuxkvmaddgbdisk/kali-linux-2020.4-installer-amd64.iso,kernel=install.amd/gtk/vmlinuz,initrd=install.amd/gtk/initrd.gz
> --network=bridge:br0 --os-type=linux --os-variant=debian9 --graphics=none
> --extra-args "console=ttyS0" -v --disk
> path=/linuxkvmaddgbdisk/kalilinux.img,size=50
> 
> I am not able to get the root login prompt when I run the below command to
> set IP and hostname for the guest OS. Am I missing any parameters from the
> above virt-install command to install Kali Linux as Guest OS in KVM
> Hypervisor?
> 
Just a hunch, maybe --extra-args work only for installation and are not 
persistent? I guess installer doesn't persist kernel cmd line passed in 
installation phase (why would it anyway?). I guess you need to configure 
grub so that it appends the argument or configure /etc/initttab and 
uncomment line that enables getty for ttyS0 console.

Michal

On Tue, Dec 01, 2020 at 09:58:26PM +0530, Kaushal Shriyan
wrote:
>Hi,
>
>I have run the below command to install Kali Linux using
>linux-2020.4-installer-amd64.iso from https://www.kali.org/downloads/
>
>#virt-install --name kalilinux --memory 4096 --vcpus=2
>--location=/linuxkvmaddgbdisk/kali-linux-2020.4-installer-amd64.iso,kernel=install.amd/gtk/vmlinuz,initrd=install.amd/gtk/initrd.gz
>--network=bridge:br0 --os-type=linux --os-variant=debian9 --graphics=none
>--extra-args "console=ttyS0" -v --disk
>path=/linuxkvmaddgbdisk/kalilinux.img,size=50
>
>I am not able to get the root login prompt when I run the below command to
>set IP and hostname for the guest OS. Am I missing any parameters from the
>above virt-install command to install Kali Linux as Guest OS in KVM
>Hypervisor?
>
I'm not sure why you need to set the IP address.  Are you running a network
with
static IPs, without DHCP?  As I cannot see where br0 is connected I can't
guess
more than that.  You can use Michal's approach if you use the default
libvirt
network, though.
>#virsh console kalilinux
>Connected to domain kalilinux
>Escape character is ^]
>
You might be connected at this point.  It's just that the guest sent the
"login:
" prompt before you connected.  Try pressing enter at this point to see
whether
there's something listening on the serial console.  If it's not, then I
wonder
where it would listen, given the --graphics=none.

There are ways to modify the guest image. Easiest thing might be to use
virt-customize.  But I truly believe you have a working system and all you need
to do is write the username and press enter.  In the end it will look like this:

I'm trying to reproduce the install right now with comparable command-line,
but
it's getting stuck on something unrelated.  If I manage to get it to work I
will
let you know what I found.
>Any help will be highly appreciated. I look forward to hearing from you.
>Thanks in Advance.
>
>Best Regards,
>
>Kaushal
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