Kayak Client Configuration

A Kayak client’s configuration file is a snippet of bash script that gets executed during the installation process. When installation begins, the client config is fetched from the Kayak server to /tmp/_install_config.

A sample client config is in /usr/share/kayak/sample/000000000000.sample and looks like this:

BuildRpool c0t0d0 c0t1d0
SetHostname instalz
SetTimezone UTC
EnableDNS example.com
# Substitute your interface name for "e1000g0" below
Postboot '/sbin/ipadm create-if e1000g0'
Postboot '/sbin/ipadm create-addr -T dhcp e1000g0/v4'
# For static networking, edit the following for your environment
#   and remove the second ipadm line above.
# Postboot '/sbin/ipadm create-addr -T static -a e1000g0/v4'
# Postboot '/sbin/route -p add default'
# Uncomment to disable automatic reboot

Strictly speaking, the only mandatory component is BuildRpool but you will probably want to set things like the hostname, timezone and DNS and set up networking. See below for additional Postboot examples.


Arguments are one or more of:

  • Disk device names like c0d0 (IDE, legacy-mode SATA) or c0t0d0 (SCSI/AHCI/SAS/FC), space-separated;
  • Size comparisons: either < or > may be specified along with a number of megabytes to indicate that you want only devices less than or equal to, or greater than or equal to that size, respectively;
  • Patterns: indicated by a leading ~, patterns are fed to egrep(1) to limit the list of devices to those whose descriptions match the pattern.

Arguments may be combined. If multiple arguments are comma-separated, the terms are ANDed together so that only devices matching all constraints are considered. Any space-separated arguments are evaluated separately.

Each device will be formatted with an SMI disklabel and partitioned such that encompasses the full size of the disk. At this time, partitioning is not configurable.

If multiple devices are matched by the argument(s), a simple n-way mirror will be created.


Command Description
BuildRpool c0t0d0 Use c0t0d0 only
BuildRpool c0t0d0 c0t1d0 Use c0t0d0 and c0t1d0 only (makes a 2-way mirror)
BuildRpool <161000 Use all devices whose size is less than or equal to 161,000 MB
BuildRpool >80000,<1000000 Use all devices whose size is greater than or equal to 80,000 MB and less than or equal to 1,000,000 MB (1 TB)
BuildRpool ~SEAGATE Use all devices whose description contains the string SEAGATE
BuildRpool c0t0d0 ~INTELSSD,<40000 Use c0t0d0 and all devices whose description contains INTELSSD and whose size is less than or equal to 40,000 MB


Takes a single argument and sets the hostname in the running miniroot environment as well as placing it in /etc/nodename in the installed environment.


Takes one optional argument, the suffix for the automatically generated hostname. Defaults to omnios.

The hostname is calculated based on the mac of the first Ethernet interface.

For example a nic with the following MAC address 03:E7:A4:B6:7B:2A:

AutoHostname results in a hostname of 03-e7-a4-b6-7b-2a-omnios.

AutoHostname kayak results in a hostname of 03-e7-a4-b6-7b-2a-kayak.


Updates the value of TZ in /etc/default/init in the installed environment. The value should be the name of a timezone information file in .


Enable name resolution using DNS for IPv4 and IPv6. The first argument is the default domain. Remaining arguments, if any, will be the list of search domains.

By default, the DNS resolver searches the default domain, so if that’s the only domain you care to search, you need not specify an explicit search path.

Use SetDNS to specify one or more name servers.

For example:


results only in nsswitch.conf being updated, leaving resolv.conf untouched.

EnableDNS example.com

results in a resolv.conf as follows. Search will use example.com.

domain example.com
search example.com
EnableDNS prod.example.com dev.example.com

results in a resolv.conf as follows. Search will use prod.example.com followed by dev.example.com. In other words, order matters for the search path.

domain prod.example.com
search prod.example.com dev.example.com

See resolv.conf(4) for details.

Additionally, when EnableDNS is specified, /etc/nsswitch.conf is updated with “dns” appended to the hosts: and ipnodes: line, after files.


Specify one or more servers to use for name resolution.

note: Call EnableDNS first if you want to specify a default or search domain. SetDNS implicitly calls EnableDNS without arguments if no resolv.conf file already exists.

For example:


results in resolv.conf having the following appended.

SetDNS 2001:4860:4860::8888

results in resolv.conf having the following appended.

nameserver 2001:4860:4860::8888


Deprecated as of October 1st, 2014

UseDNS is now a wrapper for backwards compatibility and should not be used; internally it uses EnableDNS and SetDNS.


These are commands that get run verbatim and in the order specified upon initial boot of the installed system.

Static IP Config

See the sample config above.


If this is set to a non-null value, the installer will not reboot upon completion. This is helpful if you are debugging an installation problem.