helpUsing the Help SystemThe boot loader online help is context sensitive. It gives information about the selected menu item or, if you are editing boot options, it tries to look up information about the option in which the cursor is positioned.
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Return to optBootOptionsstartupSplash Mode SelectionF3 lets you change the splash screen mode. You can use the o_splashsplash kernel option directly, if you prefer.
native turns the splash screen off (same as splash=0)
silent suppresses all kernel and boot messages and shows a progress bar instead
verbose shows nice picture and kernel and boot messages
Return to optBootOptionskeytableLanguage and Keyboard Layout SelectionPress F2 to change language and keyboard layout the boot loader uses.
Return to optBootOptionsprofileChoose ProfilePress F4 to select a profile. Your system will be started using the configuration saved in this profile.
Return to optBootOptionsoptBoot Optionso_splashsplash -- influence the behavior of the splash screen
o_apmapm -- toggle power management
o_acpiacpi -- advanced configuration and power interface
o_ideide -- control the IDE subsystemo_splashKernel Options: splashThe splash screen is the picture shown during system start-up.
splash=0
The splash screen is switched off. This may be useful with very old monitors or if some error occurs.
splash=verbose
Activates splash, kernel and boot messages are still shown.
splash=silent
Activates splash, but no messages. Instead a progress bar is drawn.
Return to optBootOptionso_apmKernel Options: apmAPM is one of the two power management strategies used on current computers. It is mainly used with laptops for functions like suspend to disk, but it may also be responsible for switching off the computer after power down. APM relies on a correct working BIOS. If the BIOS is broken, APM may have only limited use or even prevent the computer from working. Therefore, it may be switched off with the parameter
apm=off -- switch off APM completely
Some very new computers may benefit more from the newer o_acpiACPI.
Return to optBootOptionso_acpiKernel Options: acpiACPI (Advanced Configuration and Power Interface) is a standard that defines power and configuration management interfaces between an operating system and the BIOS. By default, acpi is switched on when a BIOS is detected that is newer than from year 2000. There are several commonly used parameters to control the behavior of ACPI:
pci=noacpi -- do not use ACPI to route PCI interrupts acpi=oldboot -- only the parts of ACPI that are relevant for booting remain activated
acpi=off -- switch off ACPI completely
acpi=force -- switch on ACPI even if your BIOS is dated before 2000
Especially on new computers, it replaces the old o_apmapm system.
Return to optBootOptionso_ideKernel Options: ideIDE is, unlike SCSI, commonly used in most desktop workstations. To circumvent some hardware problems that occur with IDE systems, use the kernel parameter: