Comment 8 for bug 428570

It looks like I'm still having this issue with beta 4 in the karmic final, although it may or may not have degraded further: the abovementioned workaround involving a non-zero value for GRUB_HIDDEN_TIMEOUT does not appear to work, and GRUB boots to a menu on every occasion; the only case where it does not is if I set GRUB_TIMEOUT to 0, which is not practical for me as a dual-boot user. Below is my /etc/default/grub, which despite appearances, boots to the menu.

# If you change this file, run 'update-grub' afterwards to update

# /boot/grub/grub.cfg.

GRUB_DEFAULT=0

GRUB_HIDDEN_TIMEOUT=1

GRUB_HIDDEN_TIMEOUT_QUIET=true

GRUB_TIMEOUT=-1

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

#GRUB_CMDLINE_LINUX=" vga=771"

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

#GRUB_TERMINAL=console

# The resolution used on graphical terminal

# note that you can use only modes which your graphic card supports via VBE

# you can see them in real GRUB with the command `vbeinfo'

GRUB_GFXMODE=800x600x32

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entrys

#GRUB_DISABLE_LINUX_RECOVERY="true"