NexentaOS GNU/SUN personalities

The default behavior of NexentaOS is to search for execution binaries in order described in the PATH. Standard locations such as /usr/bin and /usr/sbin all populated with GNU binaries, which makes NexentaOS behave as GNU system. SUN binaries saved in /usr/sun/bin and /usr/sun/sbin locations and system could be forced to use SUN-like personality by utilizing SUN_PERSONALITY environment variable.

SUN_PERSONALITY execve() system call logic implemented and it is finally allows Solaris-centric scripts to be executed in NexentaOS without modifications.

Simple SUN_PERSONALITY=1 environment variable will switch execution paths on the fly to look on /usr/sun/{bin,sbin} first.

nexenta-pkgcmd package using this during "alien" SVR4=>Debian on-the fly conversion to enable solaris-like environment for SVR4 maintainers scripts.

Example of usage pkgadd to add QLogic SVR4 packaged drivers:

# pkgadd -d Qlogic-x86
Transferring package instance
sunwqlc_5.11-1_solaris-i386.deb generated
Transferring package instance
sunwqlcu_5.11-1_solaris-i386.deb generated
(Reading database ... 62453 files and directories currently installed.)
Preparing to replace sunwqlc 5.11-1 (using
sunwqlc_5.11-1_solaris-i386.deb) ...
Unpacking replacement sunwqlc ...
Preparing to replace sunwqlcu 5.11-1 (using
sunwqlcu_5.11-1_solaris-i386.deb) ...
Unpacking replacement sunwqlcu ...
Setting up sunwqlc (5.11-1) ...
Reboot client to install driver.
Setting up class: none /kernel/drv/amd64/qlc
4331 blocks
Setting up class: none /kernel/drv/qlc
4331 blocks
Setting up class: qlc /kernel/drv/qlc.conf

Setting up sunwqlcu (5.11-1) ...

# dpkg -l|grep sunwqlc
ii sunwqlc 5.11-1 Qlogic ISP 2200/2202 Fibre Channel Device Dr
ii sunwqlcu 5.11-1 Qlogic Fibre Channel Adapter Utilities (usr)

Those folks who just want to use real Solaris-like environment on NexentaOS could simple type:

# SUN_PERSONALITY=1 sh
$

All SUN commands like ls,rm,sed,nawk,etc will be on the path even if you execute them with absolute path, i.e. /usr/bin/sed