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Operating Systems Linux Debian Disabling emergency and init mode Post 302815581 by alister on Saturday 1st of June 2013 09:44:15 AM
Old 06-01-2013
If that is meant to deter someone with physical access to the machine, it is an absolutely worthless measure. Such an attacker could easily boot the machine from a usb, cd, or floppy drive. An effective defense would be to use full disk encryption.

Regards,
Alister
 

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startup(7)						 Miscellaneous Information Manual						startup(7)

NAME
startup - event signalling system startup SYNOPSIS
startup [ENV]... DESCRIPTION
The startup event is generated by the Upstart init(8) daemon after it has completed its own initialisation and is the signal that the rest of the system may be started. Typically this will involve checking and mounting the partitions and drives that form the filesystem, loading drivers for connected devices and starting the X windowing system or other login environment. In the default Upstart configuration, the primary task run on the startup event is the /etc/init/rc-sysinit.conf job responsible for gener- ating the System V compatible runlevel(7) event. See that page for a more detailed explanation of this process. Paradoxically there is currently no corresponding Upstart-native event signifying that the system is to be shutdown, only the System V com- patible runlevel 0 and runlevel 6 events provide this functionality. EXAMPLE
A service with no other dependencies run on startup might use: start on startup SEE ALSO
runlevel(7) init(8) Upstart 2009-07-09 startup(7)
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