bootconf — bootconf
bootconf [options...]
bootconf is a small utility that provides a convenient
way to set or inspect some common Linux kernel boot options.
bootconf updates the GRUB configuration
file (/boot/grub/grub.conf in most cases).
The changes will take effect, naturally, at the next reboot.
The following parameters may be specified:
-titles
This parameter must be specified by itself, alone. bootconf displays a formatted list of available boot partitions and kernels.
default=n
The default boot kernel or partition is “n”, where
“n” is the boot partition number from the list produced by the
-titles parameter.
quiet or quiet=1
Suppress most diagnostic messages when the Linux kernel initializes.
noquiet or quiet=0
Display diagnostic messages when the Linux kernel initializes.
gui or gui=1
Show the status of the system boot process graphically (the “rhgb” boot option).
nogui or gui=0
Show the status of the system boot process as text.
vesa=mode
Use a VESA framebuffer for the system display (see below).
novesa
Do not use the VESA framebuffer for the system display.
Running bootconf without specifying any parameters displays the current settings. Run bootconf from X to show a small window where the individual settings can be adjusted graphically.
The current settings are parsed from the first kernel listed in GRUB's configuration file, but new settings are saved for every configured kernel.
Many modern video cards are capable of providing a standard, vendor-independent access mechanism to the display memory. Linux can use this framebuffer for the system console, as opposed to the traditional text display.
The “vesa=mode” option configures
the Linux kernel to set the video card framebuffer to
mode. The possible values for
mode are:
640x480x8640x480x15640x480x16640x480x24800x600x8800x600x15800x600x16800x600x241024x768x81024x768x151024x768x161024x768x241280x1024x81280x1024x151280x1024x161280x1024x241600x1200x81600x1200x151600x1200x161600x1200x24
Your video card may not support all of the above video modes. Check your video card's documentation. If you select an invalid video mode, the Linux kernel may not be able to boot. When that happens, press E to edit the kernel command line, in GRUB, remove the “vga=NNN” parameter, press Enter then B to boot without the framebuffer.