Re: [Qemu-discuss] How to show the system login prompt? (via ssh)

[Narcis Garcia]

I've tested now without any -vga parameter, and it worked for me.
It worked also in an extreme command simplification:
$ qemu-system-i386 -curses -boot c -drive file=disk.img,media=disk,index=0

But certainly, in the only case I specify -vga none then the guest is
not booting at all (neither GRUB)

Do exist some MDA-like adapter for Qemu for non graphic guest and save
memory?


El 02/12/16 a les 17:50, Shiyao Ma ha escrit:
> Thanks for your help. You pointed me to the right direction.
> 
> 
> I finally succeeded. 
> 
> Just for the record, in case someone meets the same problem.
> 
> Please add the "-vga virtio" to the invocation of qemu.
> 
> Otherwise, no matter how you set the grub, finally the system will use a
> frame buffer.
> 
> 
> Regards.
> 
> On Dec 2, 2016, 21:25 +0800, Narcis Garcia <address@hidden>, wrote:
>> I see now a Debian 8 guest where I have:
>> GRUB_CMDLINE_LINUX="nomodeset text"
>> GRUB_TERMINAL=console
>>
>> * Don't forget to update-grub after.
>>
>>
>> El 02/12/16 a les 12:31, Shiyao Ma ha escrit:
>>> Yes, it's now the business of the guest OS.
>>>
>>> What guest distro are you using?
>>>
>>> I'd like to give it a try.
>>>
>>> Thanks.
>>>
>>>
>>> On Dec 2, 2016, 18:40 +0800, Narcis Garcia <address@hidden>,
>>> wrote:
>>>> It seems to be the guest OS that is jumping to GUI. As far as I know,
>>>> Qemu has nothing to do at this point but the guest OS.
>>>>
>>>> I use these parameters for GRUB when I want CLI only:
>>>> GRUB_CMDLINE_LINUX_DEFAULT="nomodeset"
>>>> GRUB_GFXPAYLOAD_LINUX="text"
>>>> GRUB_TERMINAL=console
>>>>
>>>>
>>>> El 02/12/16 a les 11:21, Shiyao Ma ha escrit:
>>>>> I now start the VM with the following command,
>>>>> sudo kvm -m 256 eva.qcow -net nic,model=virtio -net
>>>>> user,net=192.168.101.0/24,hostfwd=tcp::8022-:22 -curses
>>>>>
>>>>> turns out I can SSH into it on port 8022.
>>>>>
>>>>> I then modified the grub of VM to be:
>>>>> GRUB_CMDLINE_LINUX="text"
>>>>> GRUB_TERMINAL="console"
>>>>>
>>>>> I also did a :
>>>>> sudo systemctl set-default multi-user.target
>>>>>
>>>>>
>>>>> Shutdown the VM and then run the command:
>>>>> sudo kvm -m 256 eva.qcow -net nic,model=virtio -net
>>>>> user,net=192.168.101.0/24,hostfwd=tcp::8022-:22 -curses
>>>>> again,
>>>>>
>>>>> Now I can see the grub menu showing up.
>>>>> And then, some text showing up, looks like the kernel is doing the
>>>>> booting.
>>>>>
>>>>> And then, suddenly, at the time the normal "login: password" prompt
>>>>> should show up, the terminal shows:
>>>>> "1024 x 768 Graphic mode"
>>>>>
>>>>>
>>>>>
>>>>> I thought doing a "sudo systemctl set-default multi-user.target" should
>>>>> be enough. Dunno what I am missing.
>>>>>
>>>>> I am running a fresh installation of debian8.6.
>>>>>
>>>>> Regards.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Dec 2, 2016, 17:24 +0800, Narcis Garcia <address@hidden>,
>>>>> wrote:
>>>>>> May be the guest OS that is going to graphic mode, and because of this
>>>>>> you aren't seeing the GUI in CLI? If so, you can use that VM
>>>>>> connecting
>>>>>> to guest's GUI and not host's CLI.
>>>>>>
>>>>>>
>>>>>> El 02/12/16 a les 10:04, Shiyao Ma ha escrit:
>>>>>>> Hi.
>>>>>>>
>>>>>>> I SSH to a server, which has no X environment installed.
>>>>>>> On the server, there is qemu/kvm running VMs.
>>>>>>>
>>>>>>> I can launch the VM with the following command:
>>>>>>> sudo qemu-system-x86_64 -hda eva.qcow -enable-kvm -curses
>>>>>>>
>>>>>>> but the terminal screen sticks at showing:
>>>>>>> "1024 x 768 Graphic mode".
>>>>>>>
>>>>>>> Picture here:
>>>>>>> http://imgur.com/a/jhMe5
>>>>>>>
>>>>>>> My question is, how can I see the normal login prompt, e.g.,
>>>>>>> login:
>>>>>>> password:
>>>>>>>
>>>>>>> Regards.
>>>>>>
>>>>
>>