9

Is there a way to exit the splash screen during boot and view the verbose boot without rebooting?

For future viewers sake: this is for GRUB2 on Ubuntu.

NobbZ
  • 511
stuartc
  • 193

3 Answers3

9

If you use grub2 then the following should do the trick for every installed kernel on every boot:

  • make a backup copy of /etc/default/grub
  • Open up /etc/default/grub as root
  • Change the line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="" (if there is more than only quiet and splash between the quotes, keep it!)
  • save the changes
  • run sudo update-grub
  • reboot

This way this change will even be permanent after a kernel update. Also this is the only way that works in grub2 since boot/grub/menu.lst was in grub1 and is not used anymore in grub2.

More about configuring grub2 in ubuntu: https://help.ubuntu.com/community/Grub2

NobbZ
  • 511
5

On bootup, press F2.

Now, you'll have the verbose feedback mode.

jrg
  • 61,707
1

This works only for grub versions prior than grub2!

Open /boot/grub/menu.lst. You'll see a block like this:

title xxx
root (hd0,0)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=xxxx ro quiet splash
initrd /boot/initrd.img-2.6.22-14-generic
quiet

Change it to:

title xxx
root (hd0,0)
kernel /boot/vmlinuz-2.6.22-14-generic root=UUID=xxxx ro
initrd /boot/initrd.img-2.6.22-14-generic

Note that the kernel version numbers in your case may be different. Save the file and the splash screen should be replaced with a verbose boot from now on.

NobbZ
  • 511
nopcorn
  • 267