[Oracle RAC 12.1 SHARED FILE SYSTEM Installation]: Creating oracle12 user and administrative groups

Create groups:

# groupadd -g 1000 oinstall
# groupadd -g 1001 dba
# groupadd -g 1002 oper

It seems we don’t use ASM here, but for some reason groups are required.

OSASM Group

# groupadd -g 1003 asmadmin

OSDBA Group

# groupadd -g 1004 asmdba

OSOPER Group

# groupadd -g 1005 asmoper

Create oracle12 user, specify that he will be a member of dba and oinstall groups and his home directory will be /home/oracle12

# useradd -g oinstall -G dba,oper,asmadmin,asmdba,asmoper -d /home/oracle12 oracle12

Set password for oracle12 user

# passwd oracle12