inittab vs. /etc/sysconfig/init for runlevel 3/5

[Bill Nottingham]

Dmitry Butskoy (buc at odusz.so-cdu.ru) said: 
> Whether it is possible to save /etc/inittab, as an additional "legacy" 
> config file? Perhaps it could be fine to have some special "service" under 
> upstart, which read the /etc/inittab (if present) and perform all the tasks 
> which are still defined in the old sysv way...

That would mean attempting to figure out what things in the old
/etc/inittab were sysadmin-modified/added, and which ones weren't.
That seems fraught with failure.

Bill