Operation Manual

installation kernel, or due to certain functionalityincluded in this kernel, such as
ACPI, that can still causeproblems on some hardware.
If your systemfails to install using the standard Installationmode from the first in-
stallationboot screen, try the following:
1 With the DVD still in the drive,rebootthe machinewith[
Ctrl
] +[
Alt
] +[
Del
]
or using the hardware resetbutton.
2 When the boot screen appears,press[
F5
], usethe arrow keysof your keyboard
to navigateto No ACPI and press[ Enter] to launchthe boot and installation
process.This option disables the support for ACPI power managementtech-
niques.
3 Proceedwith the installationas describedin Chapter1, Installationwith YaST
(↑Reference).
If this fails, proceed as above, but chooseSafe Settingsinstead.This option disables
ACPI and DMA support.Most hardware will boot with this option.
If both of theseoptionsfail, use the boot optionsprompt to pass any additional pa-
rametersneeded to support this type of hardware to the installation kernel. For more
information about the parametersavailable as boot options, refer to the kernel doc-
umentation located in
/usr/src/linux/Documentation/kernel-parameters.txt
.
TIP: Obtaining Kernel Documentation
Install the
kernel-source
package to viewthekernel documentation.
There are various other ACPI-relatedkernel parameters that can be entered at the
boot prompt priorto bootingfor installation:
acpi=off
This parameterdisables the complete ACPI subsystem on your computer. This
may be usefulif your computercannot handle ACPI at all or if you think ACPI in
your computercauses trouble.
acpi=force
Always enable ACPI even if your computerhas an old BIOS dated before the year
2000. This parameteralso enablesACPI if it is set in addition to
acpi=off
.
acpi=noirq
Do not useACPI for IRQ routing.
acpi=ht
Run only enoughACPI to enable hyper-threading.
acpi=strict
Be less tolerant of platforms that are not strictly ACPI specificationcompliant.
90 Start-Up