HP StorageWorks 500 - G2 Modular Smart Array User Manual page 15

In the EXTRAVERSION field, replace the current value (typically -3.ecustom) by entering:
3.
E3.multipath
NOTE: Do not use the same name suffix as the active kernel. This naming ensures that any misconfiguration
does not harm the current configuration.
Overwriting the active .config file
IMPORTANT: Before overwriting any file, create a backup of the original file.
To overwrite the active .config file for Red Hat operating systems:
Locate the specific .config file for the modified kernel:
1.
From the root level of the kernel source, enter:
a.
cd configs
Identify the appropriate .config file by name, for example:
b.
2.4.9-i686-enterprise.config
Copy the kernel to the root level of the kernel source and overwrite the active .config file. Enter:
2.
cp kernel-2.4.9-i686-enterprise.config ../.config
When prompted to overwrite the existing file, enter:
3.
y
Editing the .config file and making the kernel
To edit the .config file:
Open the configuration menu. Enter:
1.
make menuconfig
Select Multi-device support (RAID and LVM).
2.
Select RAID support.
3.
Be sure that the RAID support option is checked with an asterisk. If it is not checked, use the space
4.
bar to cycle through the settings until an asterisk appears next to the option.
Select Multipath I/O support.
5.
Be sure that the Multipath I/O support option is set as a module. If it is not set as a module, use the
6.
space bar to cycle through the settings until an "M" appears next to the option.
Press the Esc key twice to exit the menus.
7.
When prompted to save the new kernel configuration, press the Enter key to select Yes.
8.
Make the kernel:
9.
From the root level, enter:
a.
mrproper
make dep
make bzImage
make modules
make modules_install
Wait for the kernel to be made. Depending on the hardware configuration, this process can last
b.
up to 30 minutes.
Insert the new kernel into GRUB or LILO.
10.
Installation and operation in Red Hat Enterprise Linux 2.1 environments 15