Bug#1134098: "Enter root password for system maintenance" doesn't accept passwords longer than 127 characters

[Andy Bennett]

Package: initscripts
Version: 3.14-4

When a volume mount times out during boot the console asks for the root 
password:

-----
You are in emergency mode. After logging in, type "journalctl -xb" to 
view
system logs, "systemctl reboot" to reboot, or "exit"
to continue bootup.
Enter root password for system maintenance
(or press Control-D to continue):
-----

If my password is longer than 127 characters then I cannot log in:

-----
(or press Control-D to continue): sulogin: input overrun at /dev/hvc0
-----

The above message appears when I key in the 128th character and then 
boot tries to continue as if I'd pressed "Control-D" and then eventually 
times out again.


The length limit should be the same as the length limit in the Debian 
installer so that I cannot set a password that I can't use to rescue the 
system.

A password longer than 127 characters works at the regular console login 
prompt.



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