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I've found ways to disable gdm or lightdm or whatever 11.10 uses, but I can't find a way to get a true text-mode boot. I want to see all the kernel messages fly by as it boots, not a stupid purple screen.

I got the desktop manager turned off finally, but now I get a purple screen for a while, then it switches to TTY1. After that happens, I get about half a screen of kernel messages (the end of the boot sequence; stuff about running init scripts etc.) and the login prompt. I did this by changing GRUB_CMDLINE_LINUX_DEFAULT and GRUB_CMDLINE_LINUX to "text" in /etc/defaults/grub.

Really my main question is, what is putting that dumb purple screen up at boot, and how do I disable it!?

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press up button while booting. –  shantanu Jan 2 '12 at 18:43
    
Check out this post for a how-to on hi-res text boot with plymouth. –  user142529 Mar 22 '13 at 13:05

2 Answers 2

up vote 23 down vote accepted

Edit in /etc/default/grub

# Stops the ubuntu purple screen
#GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

# Uncomment to disable graphical terminal (grub-pc only) 
GRUB_TERMINAL=console

Then run a sudo update-grub.

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Didn't see the GRUB_TERMINAL value. Thanks a lot. This worked. I only changed the values I had seen people mention online. I never feel comfortable editing boot loader configuration scripts. I'm always afraid that I will have to use my rescue flash drive :P –  Caleb1994 Jan 2 '12 at 19:22
    
apt-get purge plymouth-theme-ubuntu-text - This clears a lot of crud after you do the above –  Ian Macintosh Jul 23 at 10:14
    
@IanMacintosh, what crud does it clear? On my machine it says it's going to free 84kB of disk space. Does it remove something else as well? –  Drew Noakes Nov 4 at 22:17
    
@IanMacintosh, so I tried this. The command spent quite a while on update-initramfs: Generating /boot/initrd.img-3.11.0-26-generic. Afterwards I rebooted and compared the output of bootchart. The time to boot went up by around two seconds. The delay appears to have been caused by busybox. After reinstalled plymouth-theme-ubuntu-text boot time dropped back. I can't explain why this is, but it's what I observed. –  Drew Noakes Nov 4 at 22:51
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Boot speed will be negatively affected if you write a lot of text to the screen, particularly in a graphical mode with slow scrolling. The question isn't about trying to boot 5 seconds faster. You could try a new question and see how that pans out. –  Ian Macintosh Nov 5 at 9:34

From the Grub boot menu editor (i.e. the menu that shows up while your machine is booting), you can try to comment the "load_video" line.

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