[CentOS-virt] Is kvm ready for prime time?

Lars Hecking

lhecking at users.sourceforge.net
Fri Jun 11 10:47:44 UTC 2010

Markus Falb writes:
> Hi,
> Order of console kernel arguments matters, as far as I know, output  
> goes to the last console.
> console=tty0 console=ttyS0,115200n8
> -> boot output to ttyS0
> console=ttyS0,115200n8 console=tty0
> -> boot output to tty0
> Maybe this could be the reason why do not see output ?
 Not sure. I don't have a tty0 console, or any ttyN for that matter; only
 ttyS0 is enabled in inittab. How would I access tty0 on a headless install,
 if it existed?

 On reboot I get

|  Booting 'CentOS (2.6.18-194.3.1.el5)'
|root (hd0,0)
| Filesystem type is ext2fs, partition type 0x83
|kernel /boot/vmlinuz-2.6.18-194.3.1.el5 ro root=LABEL=/
|   [Linux-bzImage, setup=0x1e00, size=0x1db35c]
|initrd /boot/initrd-2.6.18-194.3.1.el5.img
|   [Linux-initrd @ 0x1fd53000, 0x28c180 bytes]

 then an unprintable character (y with two dots), and then nothing until

| Escape character is ^]
| CentOS release 5.5 (Final)
| Kernel 2.6.18-194.3.1.el5 on an x86_64
| test login: root

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