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Using Flash in an Example

This section details a complete example of a Flash installation. The major steps of this procedure are these:

  1. Identify the master machine and create the Flash archive.

  2. Add the installation client (if necessary) on the JumpStart server and edit the appropriate sysidcfg, profile, and rules files.

  3. Initiate the installation on the client.

Creating the Flash Archive

We create the Flash archive on www01, an Ultra Enterprise_ 220R server acting as a Web server, and then make it available to the JumpStart server, server01, by the ftp command.

www01# pwd
www01# uname -a
SunOS www01 5.8 Generic_108528-07 sun4u sparc SUNW,Ultra-60
www01# flarcreate -n "Solaris 8 web server image" \
> -a "j.s.howard@Sun.COM" \
> -R / \
> -x /var/tmp \
> /var/tmp/S8-webserver.archive
Determining which filesystems will be included in the archive...
Determining the size of the archive...
The archive will be approximately 699.92MB.
Creating the archive...
Archive creation complete.
www01# ftp server01
Connected to server01.EE_Lab.Sun.COM.
220 server01 FTP server (SunOS 5.8) ready.
Name (server01:root): blueprints
331 Password required for blueprints.
230 User blueprints logged in.
ftp> cd /jumpstart/FlashArchives
250 CWD command successful.
ftp> bin
200 Type set to I.
ftp> put S8-webserver.archive
200 PORT command successful.
150 Binary data connection for S8-webserver.archive (,34653).
226 Transfer complete.
local: S8-webserver.archive remote: S8-webserver.archive
733880662 bytes sent in 67 seconds (10738.38 Kbytes/s)
ftp> quit
221 Goodbye.

Adding the Installation Client

We add the installation client, www26 (a Netra_ t1 105 server) in this example, as an installation client on the JumpStart server, server01 (www26 has already been added to the /etc/ethers and /etc/hosts files).

server01# cd /jumpstart/OS/Solaris_8_2001-04/Solaris_8/Tools
server01# ./add_install_client \
> -p server01:/jumpstart/Sysidcfg/Solaris_8 \
> -c server01:/jumpstart \
> www26 sun4u
updating /etc/bootparams

The profile used for this example, S8-webserver-Flash.profile, is similar to profiles presented in previous chapters. However, with Flash, only the following profile keywords are valid:

  • install_type

  • partitioning, and only the keyword values of explicit or existing must be used

  • filesys, and the keyword value of auto must not be used

  • fdisk (valid for Intel Architecture only)

The following profile specifies that Flash is used as the installation type, flash_install. Additionally, the profile instructs that the Flash archive is accessed through NFS, from the location specified by the archive_location keyword.

install_type  flash_install
archive_location nfs://
partitioning  explicit
# 4GB / and 1GB swap on a 18GB disk
filesys     rootdisk.s0   free      /
filesys     rootdisk.s1   1:449      swap


Since name_service=NONE is specified in the following sysidcfg file, an IP address is used for the archive_location in the profile.

The rules entry used for this example is as follows:

model SUNW,UltraSPARC-IIi-cEngine \
    - \
    Profiles/S8-webserver-Flash.profile \

The sysidcfg file used is as follows:

network_interface=primary {netmask=


A root password is specified in the sysidcfg file. This specification overrides the root password contained within the Flash archive in /etc/shadow.

After we have created or edited the preceding files, we verify the rules file, being certain to use the check script from the Solaris 8 OE 4/01 (Update 4) CD-ROM.

server01# cd /jumpstart
server01# ./check
Validating rules...
Validating profile Profiles/S8-webserver-Flash.profile...
The custom JumpStart configuration is ok.

The finish script used for this installation is:

# EE_Lab-Flash.fin
# Finish script for default EE_Lab setup, JumpStart Flash

# clean up after flash archive install
for i in /a/var/adm/messages* /a/var/adm/utmpx \
     /a/var/adm/wtmpx /a/var/adm/lastlog
  cp /dev/null ${i}
mkdir /a/var/tmp
chown root:sys /a/var/tmp
chmod 1777 /a/var/tmp


The /var/tmp directory needs to be created by the finish script because it was excluded when the archive was created with the flarcreate command.

The boot net - install command is then issued on the installation client.

ok boot net - install
Resetting ... 

screen not found.
keyboard not found.
Keyboard not present. Using ttya for input and output.

Netra t1 (UltraSPARC-IIi 360MHz), No Keyboard
OpenBoot 3.10.24 ME, 512 MB memory installed, Serial #11699811.
Ethernet address 8:0:20:b2:86:63, Host ID: 80b28663.

Executing last command: boot net - install              
Boot device: /pci@1f,0/pci@1,1/network@1,1 File and args: - install
SunOS Release 5.8 Version Generic_108528-07 64-bit
Copyright 1983-2001 Sun Microsystems, Inc. All rights reserved.
whoami: no domain name
Configuring /dev and /devices
Using RPC Bootparams for network configuration information.
Configured interface hme0
Using sysid configuration file
The system is coming up. Please wait.
Starting remote procedure call (RPC) services: sysidns done.
Starting Solaris installation program...
Searching for JumpStart directory...
Using rules.ok from
Checking rules.ok file...
Using profile: Profiles/S8-webserver-Flash.profile
Using finish script: Finish/EE_Lab.fin
Executing JumpStart preinstall phase...
Searching for SolStart directory...
Checking rules.ok file...
Using begin script: install_begin
Using finish script: patch_finish
Executing SolStart preinstall phase...
Executing begin script "install_begin"...
Begin script install_begin execution completed.

Processing default locales
	- Specifying default locale (en_US)

Processing profile
	- Opening Flash archive

	- Validating Flash archive

	- Selecting all disks
	- Configuring boot device
	- Using disk (c0t0d0) for "rootdisk"
	- Configuring / (c0t0d0s0)
	- Configuring swap (c0t0d0s1)

Verifying space allocation
	NOTE: 1 archives did not include size information

Preparing system for Flash install

Configuring disk (c0t0d0)
	- Creating Solaris disk label (VTOC)

Creating and checking UFS filesystems
	- Creating / (c0t0d0s0)

Beginning Flash archive extraction

Extracting archive: Solaris 8 workgroup server image
	Extracted  0.00 MB ( 0% of 699.88 MB archive)
	Extracted  1.00 MB ( 0% of 699.88 MB archive)
	Extracted  2.00 MB ( 0% of 699.88 MB archive)
output deleted for brevity
	Extracted 698.00 MB ( 99% of 699.88 MB archive)
	Extracted 699.00 MB ( 99% of 699.88 MB archive)
	Extracted 699.88 MB (100% of 699.88 MB archive)
	Extraction complete

Customizing system files
	- Mount points table (/etc/vfstab)
	- Network host addresses (/etc/hosts)

Cleaning devices

Customizing system devices
	- Physical devices (/devices)
	- Logical devices (/dev)

Installing boot information
	- Installing boot blocks (c0t0d0s0)

Installation log location
	- /a/var/sadm/system/logs/install_log (before reboot)
	- /var/sadm/system/logs/install_log (after reboot)

Flash installation complete
Executing JumpStart postinstall phase...
Executing finish script "Finish/EE_Lab-Flash.fin"...

Finish script Finish/EE_Lab-Flash.fin execution completed.

The begin script log 'begin.log'
is located in /var/sadm/system/logs after reboot.

The finish script log 'finish.log'
is located in /var/sadm/system/logs after reboot.

Just as with a "classic" JumpStart software installation, after the Flash installation completes, the specified finish script executes. If we had specified a begin script, it would have executed before the installation began. The Flash mechanism does not change the JumpStart framework, but Flash does change the manner in which the Solaris OE (and software) is installed. Flash does not do an individual installation of each software package, as suninstall does. The Flash mechanism simply writes the archive on the disk and then customizes the on-disk image to the hardware it was just installed on.

Also, keep in mind that the Flash archive is literally a snapshot of an installed system. If the archive was created on a system that has been in production or use, there may be additional clean-up that the finish scripts need to perform. Temporary files such as those found in /var/tmp and log files such as /var/adm/messages, /var/adm/utmpx, and /var/adm/wtmpx should be removed or zeroed out (as appropriate) after a Flash installation from an archive created on a production system. In this example, these files were zeroed out by the finish script.

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