PowerPath: How to remove PowerPath in RHEL 2.1 and 3

Remove PowerPath in Red Hat Enterprise Linux 2.1 or Red Hat Enterprise Linux 3.
 

To remove PowerPath in Red Hat Enterprise Linux (Red Hat Enterprise Linux), perform the following steps:

NOTE:

To remove PowerPath the user must be logged in as root, and all applications accessing the fiber array must be stopped.

1. Using a text editor, open the /etc/fstab file.
2. Comment out any lines that make reference to partitions in the SAN-based file systems /etc/fstab by placing a pound sign (#) at the beginning of each of the lines.
3. Unmount all SAN-based file systems by typing the following at the command prompt:
   #umount/mount_point
   Where mount_point is the SAN device.
4. Remove all PowerPath devices by typing the following at the command prompt:
   #powermt remove dev=all
5. Verify that all emcpower devices are removed by typing the following at the command prompt:
   #powermt display dev=all
6. Stop the PowerPath service by typing the following at the command prompt:
   #service PowerPath stop
7. Verify the PowerPath package name by typing the following at the command prompt:
   #rpm -qa | grep EMCpower
   The PowerPath package name is displayed.
8. Remove PowerPath from the running kernel by typing the following at the command prompt:
   #rpm -e EMCPower.LINUX-x.x.x-xxx
   Where EMCPower.LINUX-x.x.x-xxx is the PowerPath package name.
9. Update the initial ramdisk by typing the following at the command prompt.
   #mkinitrd -v -f /boot/initrd-r 'uname -r'.img 'uname -r'
10. Type reboot at the command prompt.
    The host reboots.

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