Per chi ha problemi con il boot di linux e con lo spegnimento del pc :
The `reboot=’ Argument
This option controls the type of reboot that Linux will do when it resets the computer (typically via
/sbin/init handling a Control-Alt-Delete). The default as of v2.0 kernels is to do a `cold’ reboot (i.e. full reset, BIOS does memory check, etc.) instead of a `warm’ reboot (i.e. no full reset, no memory check). It was changed to be cold by default since that tends to work on cheap/broken hardware that fails to reboot when a warm reboot is requested. To get the old behaviour (i.e. warm reboots) use
reboot=w or in fact any word that starts with
w will work.
Other accepted options are `c’, `b’, `h’, and `s’, for cold, bios, hard, and SMP respectively. The `s’ takes an optional digit to specify which CPU should handle the reboot. Options can be combined where it makes sense, i.e.