unable to add disk using oracleasm and getting Instantiating disk: failed

Unable to create the disk on RHEL6 using oracleasm

[root@racdr1 ~]# oracleasm createdisk ASM1 /dev/sdb1
Writing disk header: done
Instantiating disk: failed
Clearing disk header: done
[root@racdr1 ~]#

The reason behind this is under /etc/selinux/config file

make sure that it have following value

SELINUX=permissive

If not then set it and restart the system then issue the command again and there will be success.

[root@racdr1 ~]# cat  /etc/selinux/config
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=permissive
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

[root@racdr1 ~]# oracleasm createdisk ASM1 /dev/sdb1
Writing disk header: done
Instantiating disk: done
[root@racdr1 ~]# 

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