Bug#499030: debian-installer: [s390] installer fails to boot 'attempt to kill init'

[Frans Pop <elendil@planet.nl>]

On Friday 19 September 2008, Frans Pop wrote:
> There seem to be various issues:
> - trying /dev/ttyS0 is just plain wrong for s/390: /dev/ttyS0 does not
>   exist, which explains the error from steal-ccty

Reason ttyS0 is tried is that dmesg does mention it:
    console [ttyS0] enabled

But udev does not create a device for it. The only remotely related 
devices are /dev/sclp_line0 and /dev/ttysclp0.

As the installer should just be using /dev/console in my case, the 
solution seems to be to add a check that the console device actually 
exists in reopen-console (and probably log a warning if it does not).

> - the program should not end in a loop

This is probably unavoidable as it is just the "respawn" that keeps 
failing:
+ cat /var/run/console-device
+ exec /sbin/steal-ctty /dev/ttyS0 /sbin/debian-installer-startup
steal-ctty: No such file or directory
+   -f /var/run/console-device !
+ cat /var/run/console-device
+ exec /sbin/steal-ctty /dev/ttyS0 /sbin/debian-installer
steal-ctty: No such file or directory
+   -f /var/run/console-device !
+ cat /var/run/console-device
+ exec /sbin/steal-ctty /dev/ttyS0 /sbin/debian-installer
steal-ctty: No such file or directory