How does the boot process[init levels] work on Linux? How
is it different from Solaris?

Answer Posted / dharmesh pitroda

There?s a big difference in the way run levels work on Linux
compared to Solaris. Linux goes straight in at a run-level,
whereas Solaris works up through them (and is better for it,
IMNSHO).

inittab for configuring the run-level; symbolic links;
chkconfig for configuring a service to start; service for
starting them if you don?t fancy running scripts manually.
Perhaps some anecdotes about the actual writing of init scripts.

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