Re: Init single and Serial console : How to ?

[Milton Miller]

> Configuration is quite simple : at the LILO prompt, I key in :
> LILO: linux console=ttyS0 -s
...
> The problem is that the bash prompt ends on the monitor, not on the 
> serial
> port.
...
> When you have a remote machine, for which you have a serial access at 
> boot
> time, but which is not completed its "go to runlevel 3" boot to give 
> you
> a serial console, how is it possible to force it to give you a prompt 
> on
> the serial port in single mode ?

Not quite single mode, but what I have done in similar situations is 
boot with
console=ttyS0 init=/bin/sh

which will give a shell on /dev/console before any init scripts have 
run.  At
this point mount -o remount,rw / and edit the inittab (you might need 
to mount
/usr depending on your configuration).   To get back, unmount the 
filesystems,
remount root read-only, and either reboot or (from the first shell)
exec /sbin/init -s to follow the normal bootup to single mode (Be sure 
you
remounted root ro in this case or your init scripts will likely fail).

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