Use the SE or HMC to boot Linux® in LPAR mode from a
DASD boot device.
Before you begin
You need a boot device that is prepared with zipl.
Procedure
Perform these steps to boot from a DASD boot device:
In the navigation pane of the HMC, expand Systems
Management and select the hardware system that you want to work with. A table of LPARs
is displayed on the Partitions tab in the content area.
Select the LPAR where you want to boot Linux.
In the Tasks area, expand Recovery and
click Load (see Figure 1).
Figure 1. Load task on the HMC
Select load type Standard load as shown in Figure 2.
Select the
Clear the main memory on this partition before loading it check box only if
you must clear memory. Memory clearing can considerably prolong the IPL procedure.
Figure 2. Load panel for booting from DASD
Enter the device number of the DASD boot device in the Load address
field.
To IPL from a subchannel set other than 0, specify five digits: The subchannel
set ID followed by the device number, for example 1E711.
If the boot configuration is part of a zipl created
menu configuration, type the configuration number that identifies
your DASD boot configuration within the menu in the Load
parameter field.
Configuration number 0 specifies
the default configuration. Depending on the menu configuration, omitting
this option might display the menu or select the default configuration.
Specifying prompt instead of a configuration number forces
the menu to be displayed.
When the menu is displayed, you can specify additional kernel parameters . These
additional kernel parameters are appended to the parameters you might have provided in a parameter
file. The combined parameter string must not exceed 895 bytes.
If the boot configuration is part of a zipl created
menu configuration, type the configuration number that identifies
your DASD boot configuration within the menu in the Load
parameter field.
Click OK to start the boot process.
DASD menu configuration for
LPAR
This example illustrates how menu2 in
the sample configuration file in Figure 1 is displayed on the HMC or
SE:
zIPL interactive boot menu
0. default (boot1)
1. boot1
2. boot3
Please choose (default will boot in 30 seconds): 2
You choose a
configuration by specifying the configuration number. For example, to boot configuration boot3
specify 2.
You can also specify additional kernel parameters by appending
them to the configuration number. For example, you can specify:
2 maxcpus=1
These parameters are concatenated to the end of the existing
kernel parameters that are used by your boot configuration when booting Linux.
What to do next
Check the output on the preferred console to
monitor the boot progress.
