Boot in text mode

It tells you how to by default boot in text mode for Debian or Linux.

[command]
sudo vi /etc/default/grub

[modify]
::: Before :::
GRUB_CMDLINE_LINUX_DEFAULT="quiet"
#GRUB_CMDLINE_LINUX="text"
#GRUB_TERMINAL=console

::: After :::
#GRUB_CMDLINE_LINUX_DEFAULT="quiet"
GRUB_CMDLINE_LINUX="text"
GRUB_TERMINAL=console
---------------------------------------------------------------

Update grub to apply the new settings.

[command]
sudo update-grub

Reboot Debian to check result.

[reference]
http://ask.xmodulo.com/boot-into-command-line-ubuntu-debian.html