roboinst_config(1M)roboinst_config(1M)NAME
roboinst_config, mrconfig - configure automatic installation server
directory
SYNOPSIS
roboinst_config [ -nxy ] [ -c configdir ]
DESCRIPTION
roboinst_config is run on the configuration server system to check and
index the contents of an roboinst configuration directory (configdir).
The mrconfig file is parsed for errors, other scripts, if any, are
checked, and a table of contents is built. Any custom configuration
directories (for specific hardware or network addresses) beneath the
configuration directory are also checked and included in the table of
contents.
roboinst_config first reads the mrconfig file. The mrconfig file must be
present in the configuration directory.
The mrconfig file controls the RoboInst automatic installation session.
Each line in the mrconfig file is a statement which specifies actions to
occur at each phase of the automatic installation. Each statement is
comprised of a keyword and its arguments.
The ordering of lines is only significant among lines that have the same
keyword. For example, all lines that begin with the inst keyword are
assumed to contain input lines for inst(1M), and this input is passed to
inst in the same order it appears in the mrconfig file.
Blank lines and lines beginning with # are ignored.
This is the order in which events happen in an automatic installation
process in the miniroot:
1. system restarted to the miniroot
2. configuration directory downloaded and mrconfig file
preprocessed
3. init keyword commands executed
4. disks partitioned as per partition keywords
5. fx keyword commands executed
6. filesystems created as per partition keywords
7. mkfs keyword commands executed
8. filesystems mounted
9. preinst keyword commands executed
10. inst keyword commands executed
11. build new kernel, unless the nokernel keyword is specified
12. postinst keyword commands executed
13. restart system to multi-user mode
In a live automatic installation the order of events is as follows:
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1. configuration directory downloaded and mrconfig file
preprocessed
2. init keyword commands executed
3. preinst keyword commands executed
4. inst keyword commands executed
5. postinst keyword commands executed
The syntax of the mrconfig keywords is detailed below:
version number
Versioning information in case new keywords are added in the
future. If this keyword is omitted, version 1 is assumed.
The RoboInst software will terminate with an error if it
encounters a mrconfig file with a higher version number.
loghost IP address(es)
The IP address(es) of the host(s) to which syslog messages
will be forwarded, in addition to being logged on the client.
setenv variable value
Set the named RoboInst environment variable. The variable is
also exported to subcommands, such as those executed in the
preinst, postinst, etc., phases of the installation.
onerror action
The onerror keyword controls the behavior of inst in response
to an error, such as incompatible product selections, disk
space shortages, etc. If set to ignore, the default, then
inst continues without stopping if an error is detected
(errors are still reported in /root/var/inst/INSTLOG and in
the SYSLOG). If set to wait, inst will stop and wait for a
response from the user (interactive mode) whenever an error
occurs.
partition device size type name options
Specify partitions to create and filesystems to mount (see
Partitioning section below).
disksetup This keyword is required when repartitioning of the root disk
drive is requested, and the drive is either uninitialized (has
no volume header) or in a pre-6.5 format, that is, when swap
is not located just after the volume header at the physical
beginning of the drive. Specifying this keyword will cause
the swap partition to be relocated to the beginning of the
drive, when the installation session is initiated from multi-
user mode using roboinst(1M). Note: if the installation is
initiated from the PROM command monitor, the disksetup keyword
will be ignored. You must also specify disksetup=true on the
boot command line when initiating roboinst from the PROM
command monitor (see prom(1M)). See Partitioning section
below.
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init /bin/sh command
This keyword is used to specify shell commands to be executed
during the init phase.
fx /bin/sh command
This keyword is used to specify shell commands to be executed
during the fx phase.
mkfs /bin/sh command
This keyword is used to specify shell commands to be executed
during the mkfs phase.
preinst /bin/sh command
This keyword is used to specify shell commands to be executed
during the preinst phase.
inst inst command
Inst command to be executed. Multiple inst keywords may be
specified. Commands are collected in the order they appear in
the mrconfig file, copied into a temporary command file, and
inst is invoked with the -c argument.
nokernel The presence of this keyword causes the autoconfig(1M) phase
to be skipped, so that a new UNIX kernel will not be
automatically generated. If you use this keyword, you must
manually build the UNIX kernel from your own scripts, if
necessary. Normally a new kernel named /root/unix.install is
generated by the autoconfig(1M) command. If it builds
successfully, it is renamed to /root/unix before the system is
restarted to multi-user mode, something like this:
if echo y | chroot /root \
/etc/init.d/autoconfig -o -N
then
mv /root/unix.install /root/unix
fi
postinst /bin/sh command
This keyword is used to specify shell commands to be executed
during the postinst phase.
if /bin/sh command
...
elsif /bin/sh command
...
else
...
endif The conditional syntax is similar to the if syntax in sh(1).
The first command is executed and if it exits with a status of
zero, then all lines up to the next else, elsif or endif
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statement are evaluated. Otherwise, the next command is
executed and if its exit status is zero, all lines up to the
next else, elsif or endif statement are evaluated, and so on.
If all the commands exit non-zero, lines following the final
else (if present) are evaluated.
As in /bin/sh, the elsif and else clauses are optional.
Multiple elsif clauses are allowed. Nesting of if statements
is permitted. Any trailing ; then is stripped from if and
elsif statements before the command is executed.
Conditional statements are useful for performing different
disk partitioning, or software installation instructions,
depending on CPU or graphics type, for example:
if [ $SGI_CPUBOARD = IP30 ]; then
init echo This is an Octane
elsif [ $SGI_CPUBOARD = IP22 ]; then
init echo This is an Indy
else
init echo Neither an Octane nor an Indy
endif
Environment Variables
RoboInst exports environment variables to commands and subcommands
executed during the automatic installation. Some variables can have
multiple values. In that case the values are separated by whitespace.
The pre-defined variables and values are as follows:
SGI_CPUBOARD The value of CPUBOARD as per the inst(1M) admin
hardware command.
SGI_CPUARCH
SGI_ABI SGI_CPUARCH is set to the value of CPUARCH as per
the inst(1M) admin hardware command, specifically,
the processor type. The value of the CPUARCH ABI(5)
type is available in the SGI_ABI variable. For
example, if inst reports both CPUARCH=R4000 and
CPUARCH=MIPS2, then the variable SGI_CPUARCH is set
to R4000, and SGI_ABI is set to MIPS2.
SGI_GFXBOARD The value of GFXBOARD as per the inst(1M) admin
hardware command.
SGI_SUBGR The value of SUBGR as per the inst(1M) admin
hardware command.
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SGI_MODE The value of MODE as per the inst(1M) admin hardware
command.
SGI_MACHINE The value of MACHINE as per the inst(1M) admin
hardware command.
SGI_IPADDR The network IP address of the system, as stored in
the nvram(1M) netaddr variable.
SGI_CAPACITY
SGI_CAP_dks#d#vol
SGI_CAPACITY is set to the capacity of the root disk
drive, in 512-byte blocks. The variables
SGI_CAP_dks#d#vol are also set to correspond to the
capacity of specific SCSI disk drives attached to
the system. For example, if you have a 2 GB system
disk (dks0d1vol) and a 1 GB option disk (dks0d2vol)
then the following variables would be set:
SGI_CAPACITY=4197405
SGI_CAP_dks0d1vol=4197405
SGI_CAP_dks0d2vol=2070235
SGI_ROOT Set to the pathname of the directory where the
actual system root directory (when the system is
booted normally) is mounted. If the installation is
being performed in the miniroot SGI_ROOT is set to
/root; in a live installation (roboinst -L),
SGI_ROOT is normally set to /.
SGI_SYSTEMPART The device name of the swap partition that the
miniroot is loaded onto. For example, dks0d1s0. In
live mode (-L) this is the partition where the
directory / is mounted.
SGI_SYSTEMDISK This is the same as SGI_SYSTEMPART, without the
final partition number. For example, dks0d1.
SGI_CUSTOM Set to the pathname of the directory to which your
mrconfig file, and any other custom files, are
copied during the automatic installation process.
In a miniroot installation, this is usually /custom;
in a live installation, SGI_CUSTOM is set to the
name of a temporary directory, such as
/tmp/d.roboinst.NNNNN (where NNNNN is a unique
number).
SGI_HOSTNAME Set to the hostname(1) of the client machine, or a
NULL string if the hostname has not been set.
SGI_SYSID Set to the system identifier comprised of 12
hexadecimal characters, for example,
08:00:69:07:73:80.
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SGI_MEMSIZE Set to the amount of memory on the system in
megabytes (MB), as reported by hinv(1).
SGI_BOOTSERVER
SGI_BOOTDIR SGI_BOOTSERVER is set to the name of the machine
from which the miniroot was booted. SGI_BOOTDIR is
set to the name of the directory containing that
miniroot.
SGI_CONFIGSERVER
SGI_CONFIGDIR SGI_CONFIGSERVER is set to the name of the machine
from which your custom files (mrconfig, .index,
etc.) were copied. SGI_CONFIGDIR is set to the name
of the directory containing those files.
Partitioning
Use the partition keyword to specify disk partitioning, filesystems and
mount points. The syntax for this keyword is:
partition device size type name mount-options ; mkfs-options ;
The device, size, and type arguments are used as input to the fx -s
command to perform disk partitioning. Partitions are laid out in the
order specified, unless a start position is given. The name and mount-
options (if any) are used as input to the mount(1M) command. The mkfs-
options (if any) are used as input to the mkfs_xfs(1M) command.
For example to create a standard system disk layout one might use:
partition dks0d1s0 standard root /
or
partition systemdisk standard root /
And to create a standard option disk mounted at /d2:
partition dks0d2s0 standard option /d2
Note: in order for repartitioning of the system disk to work properly,
the disksetup keyword (described above) must appear in the mrconfig file,
or the disksetup=true argument should be specified on the boot command
line when initiating roboinst(1M) from the PROM command monitor.
The partition arguments are as follows.
device is one of:
systemdisk a shorthand notation for partition 0 of the disk on
which the miniroot is currently loaded (the current
system disk). If this keyword is immediately
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followed by a number (eg. systemdisk1) it refers to
a specific partition on the system disk.
device name The name of a disk device in the /dev/rdsk
directory, for example dks0d1s0. See dks(7M) for a
full description of device names.
size is one of:
existing Keep the same size.
standard Use a standard layout for the entire disk. Type root
or option must also be specified (see below). When
standard is used, it applies to the entire disk (the
partition component in the device name is
irrelevant). For most partitioning tasks, either
standard root or standard option should be specified
as the first partition statement for the given disk.
If customizations are desired, additional partition
statements for that disk may also be specified.
all The entire disk.
start:size start is an integer that specifies the exact start
address of the partition, in 512-byte blocks.
Alternatively, start can be followspart# where # is
the partition number which this partition is to
immediately follow on the same disk. Note: the
volume header is partition 8, so normally the first
usable partition would use followspart8. size is an
integer that specifies the size of the partition in
512-byte blocks, or the word remainder to use the
entire remainder of disk after making all other
partitions. Note: partitions are processed in the
order they appear in the file, so remainder should
be used only in the last partition statement for a
particular disk.
type is one of:
root Only valid when standard is specified (see above).
A standard root disk is created, consisting of a
swap partition and a root partition of maximum size
containing an XFS filesystem.
option Only valid when standard is specified (see above).
A standard option disk is created, consisting of a
single partition of maximum size, containing an XFS
filesystem.
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xfs
xfs /blocksize An XFS filesystem is created with the specified
blocksize, and mounted at the directory name with
the specified options. The blocksize must be an
integer multiple of 512 and cannot exceed 65536. If
omitted, a blocksize of 4096 is assumed.
efs An EFS filesystem is created, and mounted at the
directory name with the specified options. Caution:
EFS filesystems will not be supported in future IRIX
releases. Use XFS filesystems in nearly all
situations.
swap A swap partition of the specified size is created.
preserve Any existing filesystem is preserved, and no new one
is created.
name is ignored when type is swap. For other partition types, its value
can be:
pathname A local directory where the filesystem is to be
mounted.
nomount If nomount is specified, the filesystem is not
mounted.
options are:
options See mount(1M) for legal options. This field is
optional. Any options specified are to be passed
along to the mount -o command as a single argument.
Multiple options should be comma separated with no
spaces.
Example
Consider the job of partitioning a set of Indy, O2/R5K and O2/R10K
clients. The O2/R10K machines normally have the root drive at dks0d2s0,
but on the other we would like to use dks0d1s0 for the root drive. This
can be handled with a single mrconfig file using the systemdisk keyword
as follows:
# The following "disksetup" keyword applies to all machines
disksetup
partition systemdisk standard root /
The same task could also be accomplished using explicit disk device names
with:
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# The following "disksetup" keyword applies to all machines
disksetup
if [ "$SGI_CPUBOARD" = IP32 -a "$SGI_CPUARCH" = R10000 ] then
# On O2/R10K machines use drive 2
init echo This is an O2/R10K
partition dks0d2s0 standard root /
else
# On my other machines put root on drive 1
init echo The machine type is $SGI_MACHINE
partition dks0d1s0 standard root /
endif
For more examples, install the optional subsystem roboinst.sw.examples
using inst(1M) or Software Manager(1M).
OPTIONS
The roboinst_config command accepts the following options:
-c configdir
Specify an alternate roboinst configuration directory. If no
alternate configuration directory is specified, it is assumed
to be the current directory.
-n Do not write the table of contents.
-y Always write the table of contents, even if it already exists.
-x Do not write file size and checksum information to the table
of contents. This option may be useful while debugging the
mrconfig file and other scripts in the configuration
directory. However, if the table of contents does not contain
file size and checksum information then it will not be
possible to detect file transfer errors during the automatic
installation process.
FILES
configdir/.index Table of contents for the specified configuration
directory.
/usr/share/src/RoboInst/*
RoboInst examples.
SEE ALSOABI(5), autoconfig(1M), dks(7M), fx(1M), hinv(1), hostname(1), inst(1M),
mount(1M), nvram(1M), prom(1M), roboinst(1M), sh(1) and the online book
IRIX Admin: Software Installation and Licensing.
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