Getting Started with OmniOS

A note on privilege escalation

OmniOS ships with two different methods for privilege escalation. pfexec is the Solaris/OmniOS/illumos standard which uses profiles to specify privileges, however sudo is also included and supported.

If you created a user through the post-installation menu you will have been asked if you wish to assign the Primary Administrator role to that user. That’s a user profile effectively enabling root access for the user via pfexec.

The examples on the rest of this page use pfexec - if you configured sudo, then that can be used instead.

Update all packages

The first thing that you should do with a fresh installation of OmniOS is to make sure that all packages are up-to-date. Packages in OmniOS are managed using the pkg command-line utility.

First make sure the list of available packages is up-to-date:

$ pfexec pkg refresh
Refreshing catalog 1/1 omnios

and show the available updates (no privileges required):

$ pkg list -u
NAME (PUBLISHER)                                  VERSION                    IFO
archiver/gnu-tar                                  1.29-0.151024              i--

and to apply all updates, simply:

$ pfexec pkg update

If any of the updates require a reboot, then a new boot environment will be created and this will be shown in the output.

A clone of omnios exists and has been updated and activated.
On the next boot the Boot Environment omnios-1 will be
mounted on '/'.  Reboot when ready to switch to this updated BE.

Reboot using shutdown or init:

$ pfexec init 6
... or ...
$ pfexec shutdown -i 6 

Do not be tempted to use reboot now as this will result in the boot loader trying to load a kernel named now, failing and dropping to its forth interpreter with an ok prompt. If you do this, recovery is possible via the following two commands:

ok set bootfile=platform/i86pc/kernel/amd64/unix
ok boot

Development Environment Setup

If you wish to compile software, you will need to install a compiler and supporting utilities. To see the list of available compilers, query the package system as follows:

If you’re interested in building illumos or OmniOS, refer to the Building OmniOS page.

$ pkg list -a 'developer/gcc?'
NAME (PUBLISHER)                                  VERSION                    IFO
developer/gcc5                                    5.5.0-0.151024             ---
developer/gcc6                                    6.4.0-0.151024             ---

and then install the desired version along with the system/header package:

$ pfexec pkg install developer/gcc6 system/header

This will give you enough to build simple software but you may also want to install the following packages to provide additional utilities.

$ pfexec pkg install \
	developer/build/autoconf \
	developer/build/automake \
	developer/build/gnu-make \
	developer/build/make \
	developer/lexer/flex \
	developer/object-file \

From OmniOS r151026 onwards, a build-essential meta-package will be available to install the latest compiler version along with other packages generally required for a development environment.

If you install multiple versions of gcc, then you can switch the links in /usr/bin between versions by changing the pkg system mediator. Alternatively you can use a specific version by invoking it directly or changing your PATH.

$ gcc -v
gcc version 6.4.0 (GCC)
$ pfexec pkg set-mediator -V 5 gcc
$ gcc -v
gcc version 5.5.0 (GCC)