3 settings for using an hdlm device as a boot disk – HP Hitachi Dynamic Link Manager Software User Manual

Page 201

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3. Creating an HDLM Environment

177

3.

Change the definition such that the HDLM device can be used as a boot disk.
Restore the configuration file to its state before the upgrade installation was

performed. See steps 21 to 37 in 3.7.6 Upgrade Installation in an Environment

Where a Logical Volume (LVM2) on an HDLM Device Is Used as a Boot Disk.

After completing the above procedure, you can perform an upgrade installation of

HDLM in a multi-path boot disk environment that uses a logical volume (LVM2) on

an HDLM device.

3.7.3 Settings for Using an HDLM Device as a Boot Disk

This subsection describes how to perform a new installation of HDLM in a single-path

boot disk environment that uses a SCSI device and how to set up the environment.
Note that if the settings are incorrect, the OS might not start. For details about what

action to take if the OS cannot be started from an HDLM device, see

3.7.7 Countermeasures for Unsuccessful Startup of the OS from an HDLM Device.
The name of the boot loader configuration file used in these procedures differs

depending on the boot loader and OS. The names of the boot loader configuration files

are listed in Table 3-53: Names of Boot Loader Configuration Files.

Table 3-53: Names of Boot Loader Configuration Files

To install HDLM in a boot disk environment that uses a SCSI device, and set up the

environment:
1.

Log in to Linux as a user with root permissions.

2.

If the OS is SUSE LINUX Enterprise Server 10 SP3 or later, specify

multipath=off

in the boot loader configuration file.

Make sure that

multipath=off

has been set in the

kernel

line of the boot

loader configuration file. The following example shows how to specify

multipath=off

:

When ELILO is used as the boot loader:

:

Boot loader

Configuration file name

GRUB

For Red Hat Enterprise Linux

/etc/grub.conf

For SUSE LINUX Enterprise Server 10 or SUSE LINUX

Enterprise Server 11

/boot/grub/menu.lst

LILO

/etc/lilo.conf

ELILO

/etc/elilo.conf

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