PRVF-5637 and PRVF-9802 installing oracle database on oracle linux or redhat 6.x

Solution for PRVF-5637
if u have more than one  node then perform these steps for each nodes;

# mv /usr/bin/nslookup /usr/bin/nslookup.orig
# echo '#!/bin/bash
/usr/bin/nslookup.orig $*
exit 0' > /usr/bin/nslookup
# chmod a+x nslookup

its well-known bug for OEL6 or RHEL6 while installing oracle 11.2.0.3.

 grid installer returning exit code of 1 which means as a problem;



* Mon May 07 2012 Adam Tkac <atkac redhat com> 32:9.8.2-0.9.rc1
- fix race condition in the resolver module
- nslookup: return non-zero exit code when fail to get answer (#816164)

simply returning nlslookup behaviors like OEL 5.8 will solve your problem.

  Good luck.

Solution for PRVF-9802

u need to download oracleasmlib from the below link and install it

oracleasmlib.rpm

after installing rpm u can see the disks with "/usr/sbin/oracleasm-discover"


[root@rac1 opt]# rpm -ivh oracleasmlib-2.0.4-1.el5.x86_64.rpm
warning: oracleasmlib-2.0.4-1.el5.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 1e5e0159: NOKEY
Preparing...                ########################################### [100%]
   1:oracleasmlib           ########################################### [100%]
[root@rac1 opt]#  /usr/sbin/oracleasm-discover
Using ASMLib from /opt/oracle/extapi/64/asm/orcl/1/libasm.so
[ASM Library - Generic Linux, version 2.0.4 (KABI_V2)]
Discovered disk: ORCL:DISK1 [3078144 blocks (1576009728 bytes), maxio 512]

Also check permissions for disks, they must belong to grid user..


[root@rac1 opt]# cd /dev/oracleasm/disks/
[root@rac1 disks]# ll
total 0
brw-rw---- 1 grid oinstall 8, 1 May 15 14:57 DISK1

- Erol