On Mon, Dec 07, 2020 at 11:13:08AM +0100, Michal Privoznik wrote: > On 12/4/20 6:26 PM, Kaushal Shriyan wrote: > > On Thu, Dec 3, 2020 at 8:54 PM Erik Skultety <eskultet@xxxxxxxxxx> wrote: > > > > > On Tue, Dec 01, 2020 at 06:15:55PM +0100, Michal Privoznik wrote: > > > > 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 > > > > > > Exactly, --extra-args is just for convenience of not having to edit the > > > kernel > > > cmdline manually when the serial console/GUI window opens with grub. > > > > > > Erik > > > > > > > > Hi Erik, > > > > Thanks for your reply. I am not sure if I completely understand it. Is > > there an issue in the below command? Do I need to remove --extra-args > > "console=ttyS0" in the below command to have ssh console access to the KVM > > Guest VM? Please suggest. > > > > #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 look forward to hearing from you. Thanks in Advance. > > For accessing your guest via SSH you do not need a serial console. SSH works > over network, not serial consoles. > > And those --extra-args: just take virtualization out of the picture for a > second. You bought yourself a new desktop and want to install a distro onto > it. You plug an USB stick in and as the installer boots you change the > kernel cmd line. Then you proceed with installing the distro. I don't think > that the installer will copy those extra kernel args you added into the > freshly installed grub, why would it? > > Therefore, when you want to have some extra args after the installation, you > have to edit the guest. Since at this point you are not booting kernel > directly, libvirt/qemu can't help you and you need to hand edit grub config > in the guest. And in this specific case, there is an alternative approach - > editing /etc/inittab so that the init enables serial console. Unless that specific Kali version is powered by systemd (which it most likely is) in which case you're going to see a note in /etc/inittab that it's deprecated and changes will be ignored. IMO the safest bet here is to edit the grub config as Michal suggested as the first option. Regards, Erik
