How to Install Oracle 11g R2 Database on Ubuntu 18.04 64-bit

June 13, 2019 | By the+gnu+linux+evangelist.

Setting Up Parameters

  1. 5. Setting Up Parameters

    Parameters Configuration SetUp

    So Execute:

    • Edit /etc/sysctl.conf file.

      nano /etc/sysctl.conf

      Then hit Ctrl+x to Save and Exit from nano Editor
      Add or amend the following lines

      #### Oracle 11g Kernel Parameters ####
      fs.suid_dumpable = 1
      fs.aio-max-nr = 1048576
      fs.file-max = 6815744
      kernel.shmall = 818227
      kernel.shmmax = 4189323264
      kernel.shmmni = 4096
      kernel.panic_on_oops = 1
      # semaphores: semmsl, semmns, semopm, semmni
      kernel.sem = 250 32000 100 128
      net.ipv4.ip_local_port_range = 9000 65500
      net.core.rmem_default=262144
      net.core.rmem_max=4194304
      net.core.wmem_default=262144
      net.core.wmem_max=1048576
      

      The Values of ‘shmall’ and ‘shmmax’ Need to be Customized following your System Memory Size.
      Here above is a Valid Setup for a 8Gb RAM Size!
      If you need to Change first Check your Phisical Memory Size with:

      cat /proc/meminfo | grep MemTotal

      Then ‘shmall’ should be Set as:

      [RamKb] / 10

      And instead ‘shmmax’ as:

      [RamKb] * 1024 / 2

      For further Instructions See Oracle Documentation

      If Exists then Comment out these lines below that Gives an Error

      #net.bridge.bridge-nf-call-ip6tables = 0
      #net.bridge.bridge-nf-call-iptables = 0
      #net.bridge.bridge-nf-call-arptables = 0
      
    • Edit /etc/security/limits.conf file.

      nano /etc/security/limits.conf

      Add the following lines

      #### oracle User Settings 4 Oracle 11g ####
      oracle       soft  nproc  2047
      oracle       hard  nproc  16384
      oracle       soft  nofile 1024
      oracle       hard  nofile 65536
      oracle       soft  stack  10240
      
    • Load the New Kernel Parameters

      /sbin/sysctl -p

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