linuxamd64_12c_database_1of2.zip 
linuxamd64_12c_database_2of2.zip

1. su - root

   

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2. hostnamectl set-hostname centos7.dbaora.com --static

3. #groups for database management
   /usr/sbin/groupadd -g 501 oinstall
   /usr/sbin/groupadd -g 502 dba
   /usr/sbin/groupadd -g 503 oper

4. /usr/sbin/useradd -u 501 -g oinstall -G dba,oper oracle

5. passwd oracle

6. SELINUX=permissive

7. rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE}(%{ARCH})\n' binutils \
   gcc \
   gcc-c++ \
   glibc \
   glibc-common \
   glibc-devel \
   glibc-headers \
   ksh \
   libaio \
   libaio-devel \
   libgcc \
   libstdc++ \
   libstdc++-devel \
   libXext \
   libXtst \
   libX11 \
   libXau \
   libXi \
   make \
   sysstat \
   unixODBC \
   unixODBC-devel \
   zlib-devel \
   compat-libcap1 \
   compat-libstdc++-33

   yum install libaio-devel* unixODBC* zlib-devel* compat-libcap1* compat-libstdc++-33*

8. Add kernel parameters to /etc/sysctl.conf

9. # kernel parameters for 12gR1 installation
   
   fs.file-max = 6815744
   kernel.sem = 250 32000 100 128
   kernel.shmmni = 4096
   kernel.shmall = 1073741824
   kernel.shmmax = 4398046511104
   net.core.rmem_default = 262144
   net.core.rmem_max = 4194304
   net.core.wmem_default = 262144
   net.core.wmem_max = 1048576
   fs.aio-max-nr = 1048576
   net.ipv4.ip_local_port_range = 9000 65500

10. /sbin/sysctl -p

11. Add following lines to set shell limits for user oracle in file /etc/security/limits.conf

12. # shell limits for users oracle 12gR1
    
    oracle   soft   nofile   1024
    oracle   hard   nofile   65536
    oracle   soft   nproc    2047
    oracle   hard   nproc    16384
    oracle   soft   stack    10240
    oracle   hard   stack    32768

13. Create .bash_profile for user oracle

14. # Oracle Settings
    export TMP=/tmp
    
    export ORACLE_HOSTNAME=centos7.dbaora.com
    export ORACLE_UNQNAME=ORA12C
    export ORACLE_BASE=/ora01/app/oracle
    export ORACLE_HOME=$ORACLE_BASE/product/12.1.0/db_1
    export ORACLE_SID=ORA12C
    
    
    PATH=/usr/sbin:$PATH:$ORACLE_HOME/bin
    
    export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;
    export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib;
    
    alias cdob='cd $ORACLE_BASE'
    alias cdoh='cd $ORACLE_HOME'
    alias tns='cd $ORACLE_HOME/network/admin'
    alias envo='env | grep ORACLE'
    
    umask 022
    
    envo

15. mkdir -p /ora01/app/oracle/product/12.1.0/db_1
    chown oracle:oinstall -R /ora01

16. In Oracle Enterprise Linux 7 /tmp data is stored on tmpfs which consumes memory and is too small. To revert it back to storage just run following command and REBOOT machine to be effective.

17. systemctl mask tmp.mount

注意：root用户xhost + ，然后oracle用户设置环境变量DISPLAY=:0.0，LANG=en.US.UTF-8，否则安装程序乱码

su - oracle

--unizp software it will create directory "database" 
--where you can find installation software
unzip linuxamd64_12c_database_1of2.zip
unzip linuxamd64_12c_database_2of2.zip

--I defined 4 aliases in .bash_profile of user oracle to make 
--administration heaven :)

[oracle@centos7 ~]$ alias envo cdob cdoh tns
alias envo='env | grep ORACLE'
alias cdob='cd $ORACLE_BASE'
alias cdoh='cd $ORACLE_HOME'
alias tns='cd $ORACLE_HOME/network/admin'

--run alias command envo to display environment settings
envo
ORACLE_UNQNAME=ORA12C
ORACLE_SID=ORA12C
ORACLE_BASE=/ora01/app/oracle
ORACLE_HOSTNAME=centos7.dbaora.com
ORACLE_HOME=/ora01/app/oracle/product/12.1.0/db_1

--run alias command cdob and cdoh 
--to check ORACLE_BASE, ORACLE_HOME 
[oracle@centos7 ~]$ cdob
[oracle@centos7 oracle]$ pwd
/ora01/app/oracle

[oracle@centos7 db_1]$ cdoh
[oracle@centos7 db_1]$ pwd
/ora01/app/oracle/product/12.1.0/db_1

--run installation from "database" directory
./runInstall

1. Uncheck checkbox “I wish to receive security updates via My Oracle Support” and then click “Next” button.

2. Ignore following message and click “Yes” button.

3. Select “Skip software updates” and click “Next” button.

4. Ignore following message. Just click “Yes” button

5. Select “Create and configure a database” then click “Next” button.

6. Select “Desktop Class” and click “Next” button.

7. On the screen you need to define global database name and pluggable database name. Rest of options you can keep default. Then click “Next” button.

8. Accept default settings then click “Next” button.

9. Summary screen just before installation. It’s the last moment to make changes in previous steps. If you are ready click “Install” button.

10. Installation begins …

11. Unfortunately I received error during binaries linking

in log you should see

/usr/bin/ld: note: '__tls_get_addr@@GLIBC_2.3' is defined in 
DSO /lib64/ld-linux-x86-64.so.2 so try adding it to the linker 
command line /lib64/ld-linux-x86-64.so.2: could not read symbols: 
Invalid operation

INFO: collect2: error: ld returned 1 exit status

12. To solve this problem do following as user Oracle

• remove directory /ora01/app/oracle/product/12.1.0/db_1/lib/stubs

rm -rf /ora01/app/oracle/product/12.1.0/db_1/lib/stubs

• backup file $ORACLE_HOME/rdbms/lib/env_rdbms.mk

cd $ORACLE_HOME/rdbms/lib/
cp env_rdbms.mk env_rdbms.mk.bck

• make changes in $ORACLE_HOME/rdbms/lib/env_rdbms.mk

modify line 176

LINKTTLIBS=$(LLIBCLNTSH) $(ORACLETTLIBS) $(LINKLDLIBS)

to

LINKTTLIBS=$(LLIBCLNTSH) $(ORACLETTLIBS) $(LINKLDLIBS) -lons

modify line 279 and 280

LINK=$(FORT_CMD) $(PURECMDS) $(ORALD) $(LDFLAGS) $(COMPSOBJS)
LINK32=$(FORT_CMD) $(PURECMDS) $(ORALD) $(LDFLAGS32) $(COMPSOBJS)

to

LINK=$(FORT_CMD) $(PURECMDS) $(ORALD) $(LDFLAGS) $(COMPSOBJS) -Wl,--no-as-neededLINK32=$(FORT_CMD) $(PURECMDS) $(ORALD) $(LDFLAGS32) $(COMPSOBJS) -Wl,--no-as-needed

modify line 3041 and 3042

TG4PWD_LINKLINE= $(LINK) $(OPT) $(TG4PWDMAI) \
        $(LLIBTHREAD) $(LLIBCLNTSH) $(LINKLDLIBS)

to

TG4PWD_LINKLINE= $(LINK) $(OPT) $(TG4PWDMAI) \
        $(LLIBTHREAD) $(LLIBCLNTSH) $(LINKLDLIBS) -lnnz12

Once it’s done click “Retry” button on screen from point 11 to continue with installation. Linking should finish properly and binaries installation should continue.

13. In the end you will be asked to run as root two scripts. Once they are completed click “OK” button – installation will proceed.

/ora01/app/oraInventory/orainstRoot.sh
/ora01/app/oracle/product/12.1.0/db_1/root.sh

18. Once binaries are installed automatically DBCA (database configuration assistant) will start to create new database.
19. You should see summary screen for your database. You can click “Password Management” to unlock and change passwords for default account. Click “OK” button.

20. Installation is finished. Click “Close” button.

21. Post installation steps

Edit the “/etc/oratab” file to set restart flag for ORA12C to ‘Y’.

ORA12C:/u01/app/oracle/product/12.1.0/db_1:Y