By John Graves on Mar 09, 2011
JEOS stands for Just Enough Operating System. It is great environment for building virtual machines without all the clutter of a windowing system, games, office products, etc. It is from Ubuntu and you install it using the Ubuntu server install, but rather than picking a standard install, press F4 and choose “Install a minimal system.”
Note: The “Install a minimal virtual machine” is specific to VMWare and I plan to use VirtualBox.
Be sure to include Open SSH in the install so that it installs sshd.
*** Also, if you plan to install XE, you’ll need to modify the partitions to have a larger swap space (at least 1.5 G). ***
Once the install is done, I find it useful to install a few other items.
Install some other tools
Yes, java will be included in any of the WebLogic installs, but I need this one if I want to do remote display (for config wizards, etc).
Some apps require to rebuild the kernel modules, so you’ll need a basic compiler.
Install guest additions (Choose the VirtualBox Devices->Install Guest Additions…” option. This sets up a /dev/cdrom or /dev/cdrom1. You’ll need to manually mount this temporarily:
sudo mount /dev/cdrom /mnt
Then run the linux .bin file.
Update nofile limits. Most java apps fail with the standard ubuntu settings:
edit /etc/security/limits.conf and add these lines at the end:
* soft nofile 65535
* hard nofile 65535
root soft nofile 65535
root hard nofile 65535
These numbers are very high and I wouldn’t do this on a production system, but for this environment it is fin.
To get rid of the annoying piix error on boot, add the following line to the /etc/modprobe.d/blacklist.conf file