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Reordering the boot for fun and profitReordering the boot for fun and profitPosted Jan 18, 2008 0:07 UTC (Fri) by allesfresser (subscriber, #216)In reply to: Reordering the boot for fun and profit by Thue Parent article: Reordering the boot for fun and profit
As I remember it, the theory is that the runlevels progress in capability (sort of). So level 0 was originally supposed to be a "drop to firmware prompt" since most machines didn't have the ability to power themselves off, level 1 was an single-terminal admin-only maintenance mode, level 2 was a basic multiuser level but perhaps without network, level 3 was multiuser with network but no daemons (NFS, etc.)... you get the picture. I guess level 6 got stuck on at a later time, when machines got "auto-restart" capability or something, rather than dropping down to the firmware prompt. I may be completely wrong. But that's how I remember it being explained to me. There's a lot of different ways to arrange the runlevels and what services are run when: see the Wikipedia entry for lots of info.
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