Installation guide

%ifarch x86_64

/usr/lib64/libdb.so.2

/usr/lib64/libdb.so.2.0.0

%endif

%post

# Checking Oracle user real uid and gid

oracle_uid=$(id -ru oracle 2> /dev/null)

oracle_gid=$(id -rg oracle 2> /dev/null)

# Checking the available memory

memtotal=$(awk '/MemTotal/ { print $2 }' /proc/meminfo)

# Checking the memory page size

pagesize=$(getconf PAGE_SIZE)

# Checking the huge page size

hugepagesize=$(awk '/Hugepagesize/ { print $2 }' /proc/meminfo)

# Approximation of the total system memory

if [ $memtotal -gt 66060288 ]; then # > 63GB

memtotal=67108864

elif [ $memtotal -gt 32505856 ]; then # > 31GB

memtotal=33554432

elif [ $memtotal -gt 15728640 ]; then # > 15GB

memtotal=16777216

elif [ $memtotal -gt 7340032 ]; then # > 7GB

memtotal=8388608

elif [ $memtotal -gt 3145728 ]; then # > 3GB

memtotal=4194304

elif [ $memtotal -gt 2096852 ]; then # about 2GB

memtotal=2097152

# Shared memory parameters

shmmax=$(($memtotal * 1024 / 2))

shmmni=4096

shmall=$(($memtotal * 1024 / $pagesize))

# Semaphore parameters used in the Oracle validated configurations

semmsl=250

semmni=142

semmns=32000

semopm=100

# Allocate huge pages if the system has 4GB+

if [ $memtotal -gt 3145728 ]; then

nr_hugepages=$(($memtotal / 2 / $hugepagesize))

else

nr_hugepages=0

# Set memlock value corresponding to the size of memory allocated for huge pages

if [ $nr_hugepages -gt 0 ]; then

memlock=$(($nr_hugepages * $hugepagesize))

else