Reinstall 11gr2 RAC to quickly clear the original error Installation

Cleaning before Oracle RAC 11g R2 is reinstalled in Linux

 

1. Clear the installation directories of grid and Oracle

CD/u01/APP

Rm-rf grid/

Rm-RF Oracle/

 

2. Delete Files And Directories starting with/etc/ora

Find/etc/-name 'ora * '-print

Rm-RF 'Find/etc/-name 'ora * '-print'

 

3. Delete the/etc/init. d/ohasd file.

CD/etc/init. d/

Ls | grep ohasd

Rm-RF 'ls | grep ohasd'

 

4. Convert the ASM disk to a common disk in Linux

Echo ''>/etc/udev/rules. d/99-oracle-asmdevices.rules

Start_udev

Ls-L/dev/ASM *

Ls-L/dev/SD *

 

5. Clear the header data of the original ASM Disk

Warning do not use the following commands unless you understand them.

Dd If =/dev/Zero of =/dev/sdb bs = 8192 COUNT = 1

**************************************** *****************************

For I in B c d e f g h I;

Do

Echo "dd If =/dev/Zero of =/dev/SD $ I BS = 8192 COUNT = 1"

Done

**************************************** *****************************

 

Start_udev

Ls-L/dev/ASM *

Ls-L/dev/SD *

 

Cleared.