Starting asterisk: Cannot find your TTY
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The fix for this is simple: use your favourite editor, and edit /usr/sbin/safe_asterisk, comment out the TTY line, and viola, you should now be able to automatically start, restart, or stop asterisk from the init script until your hearts content.
Naturally, as always, backup files that you edit. You may find yourself stuck later.
http://forums.whirlpool.net.au/forum-replies-archive.cfm/607081.html
Same error, different message:
/usr/sbin/safe_asterisk: line 123: /dev/tty9: Permission denied
Better solution is to change TTY number !