By default Debian (Wheezy) clears the boot messages from the console when the login prompt is displayed. This makes it more difficult to identify and fix system issues.
To prevent the login prompt from clearing the screen add the “–noclear” switch in /etc/inittab:1:2345:respawn:/sbin/getty –noclear 38400 tty1
*The line also appears in /usr/share/sysvinit/inittab,
but I didn’t need to change this on my system.