[Bug 569394] [NEW] Can't use kvm -curses with virtual or ec2 kernels

[Loïc Minier]

Public bug reported:

Hi

I'd like to run kvm -kernel <kernel file> -hda <UEC image> -append
"/proc/cmdline stuff" but this fails badly with both the EC2 and Virtual
kernels.

With the files from:
http://uec-images.ubuntu.com/lucid/current/unpacked/

Trying to run:
kvm -kernel lucid-server-uec-amd64-vmlinuz-ec2 -hda lucid-server-uec-amd64.img -curses -append "root=/dev/sda"
or:
kvm -kernel lucid-server-uec-amd64-vmlinuz-virtual -hda lucid-server-uec-amd64.img -curses -append "root=/dev/sda"

Fails awfully.

I tried all combinations of nomodeset, vga=none, modeset=0,
vga.nomodeset, vga.modeset=0, vga=ask and what not, but all failed.

During the early kernel init, the VGA adapter emulated by kvm switches to graphics mode after:
[...]
[    1.073901] EXT3-fs: mounted filesystem with ordered data mode.              
[    1.074640] VFS: Mounted root (ext3 filesystem) readonly on device 8:0.      
[    1.075983] devtmpfs: mounted                                                
[    1.076955] Freeing unused kernel memory: 796k freed                         
[    1.093995] Write protecting the kernel read-only data: 7788k                

I just get "640 x 480 Graphic mode" filling my whole remote terminal,
and can't interact with the curses vm anymore.

the -ec2 kernels in particular give some spectacularly corrupted output.

Thanks,

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-ec2 (not installed)
ProcVersionSignature: Ubuntu 2.6.32-21.32-server 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-server x86_64
Architecture: amd64
Date: Sat Apr 24 13:23:44 2010
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/zsh
SourcePackage: linux-meta-ec2

** Affects: linux-ec2 (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: qemu-kvm (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid

** Also affects: qemu-kvm (Ubuntu)
   Importance: Undecided
       Status: New

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Can't use kvm -curses with virtual or ec2 kernels
https://bugs.launchpad.net/bugs/569394
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