Installing Oracle Linux 7 on Oracle VM server

Installation instructions here: https://docs.oracle.com/cd/E52668_01/E54695/E54695.pdf
Download the ISOs here https://edelivery.oracle.com/linux (choose the "Oracle Linux 7 Media Pack for x86 64 bit")
There are 2 ISOs available in this media pack
Oracle Linux 7 Boot ISO image for x86_64 (64 bit) = V46138-01 (= oracle-linux-7-boot.iso )
Oracle Linux 7 for x86_64 (64 bit) = V46135-01 (= oracle-linux-7.iso )

To be on a safe side I choose the big fat V46135-01 ("This ISO image contains everything needed to boot a system and install Oracle Linux"). In fact this image too is bootable - Oracle naming is a bit confusing !

(remember to set the boot order, first CD/DVD then HD... and once installation is completed, revert the order, first HD then DVD... to be on the VERY safe side just eject the DVD after installation)

Installation is just smooth.... apart from the issue of having 2 mouse trails on the graphic console...

Oracle Unbreakable Linux vs Oracle Enterprise Linux vs Oracle Linux

I was really confused by all these product names... how are they different, and what is what?
It turns out that the reality is much simpler: the "Enterprise" qualifier is no longer used - just say "Oracle Linux" - although in the documentation the term "Oracle Enterprise Linux" is still widely used.
Also, the "Unbreakable" qualifier (honestly, a bit bumptious and uppish) is used only to refer to the KERNEL, and not to the OS itself...
Please refer to the following articles for more details:
http://www.oracle.com/us/technologies/linux/product/specifications/index.html

https://en.wikipedia.org/wiki/Oracle_Linux

http://www.oracle.com/technetwork/server-storage/linux/technologies/uek-overview-2043074.html

Installing Oracle 10 on a CentOS VMWare image by bagvapp

you should run these adjustments to the Linux kernel (sudo into root)

echo "250 32000 100 128"> /proc/sys/kernel/sem
echo "1024 65000" >/proc/sys/net/ipv4/ip_local_port_range
echo 262144 > /proc/sys/net/core/rmem_default
echo 262144 > /proc/sys/net/core/rmem_max
echo 262144 > /proc/sys/net/core/wmem_default
echo 262144 > /proc/sys/net/core/wmem_max


otherwise edit your /etc/sysctl.conf and add

kernel.sem = 250 32000 100 128
etc


also, run
yum -y install compat-libstdc++-296 compat-libstdc++-33
yum install xorg-x11-deprecated-libs


also, make sure your NIC is configured for STATIC ip addresses