[Fedora-xen] Re: Centos Hangs before login prompt, and udev fails.

[K T Ligesh]

On Fri, Feb 02, 2007 at 02:10:24AM +0100, Paul Wouters wrote:
> On Fri, 2 Feb 2007, K T Ligesh wrote:
> 
> >  Allright, I think I got the issue. I am trying to boot a centos 4.1 on a fc6. Now fc6 initrd, even the custom created one, has nash-hotplugd, which has to be killed before starting udev, but this logic is not there in the initscripts of centos-4.1. So I have to basically hand craft an initrd that will kill off this nash-hotplug in the initrd itself, if it has to work with all the older distros.
> (or login via ssh to the running centos box)
> 
> cd dev ; /dev/MAKEDEV null zero random urandom console tty pty hda xvd loop
> (this uses the MAKEDEV script in the /dev/ of dom0 to create nodes in the
>  /dev of the guest image)
> 
> mknod dev/xvc0 c 25 187
> (cause there is some confusion about which major/minor to use)
> 
> edit inittab and change the mingetty for tty2 to xvc0, eg:
> 
> 	2:2345:respawn:/sbin/mingetty xvc0
> 
> (change tty2 not tty1 because in a normal "working" situation, tty1 will be mapped
>  to the xen virtual console already, you do not want to break that)
> 
> And do:
> 
> echo "xvc0" >> etc/securetty
> (to allow root logins)
> 
> I also made a xenU ramdisk for my images, on dom0:
> 
> mkinitrd /boot/initrd-2.6.18-1.2849.fc6xenU.img --with=xennet --preload=xenblk
> 
> (again note to redhat: PLEASE include xennet/xenblk in the xen ramdisk, even if
>  the dom0 strictly does not need it. It will allow everyone to re-use the same
>   initrd when not using pygrub with disk images, but kernel=/ramdisk= statements
>  with a rootfs)
> 

 Yeah, I did that. So now xen uses xvc0 and not the ttyS0? That's actually good news, since that means that the tty is now freed up?

 Thanks.