Ifhw; Synopsis; Description; Examples - HP Integrity rx1600 Deployment Manual

The hwquery utility produces MYRAM=768and MYEFIFW=1.10.
• If the MYRAM environment variable does not exist, this command creates the variable. To set
the value of the <RAM> tag in hwdisc.xml to the MYRAM environment variable use this
command.
export $( hwquery hwdisc.xml allboards.xml MYRAM=RAM )

ifhw

Synopsis

ifhw [path]hwdiscfilename [path]allboards.xml <expression>

Description

The ifhw utility is executed from a script file, in conjunction with other utilities, to control the
install process. The ifhw utility makes intelligent queries against the hardware discovery file.
Queries take the form of a logical expression, and the result of the expression is returned as the
exit status of the tool, which the hosting script can use to conditionally perform actions.
Table 6-21 ifhw Options
Option
[path]hwdiscfilename
[path]allboards.xml
expression

Examples

The ifhw utility might use XML files as input to query the hardware discovery file. The command
line input:
ifhw hwdisc.xml allboards.xml "PCI:Smart Array 6402"
returns the following possible codes:
• 0 (True) if the Smart Array 6402 is present
• 1 (False) if the device is not present
• 2 (Error) if the expression could not be understood
• -1 or 255 if incorrect number of parameters given
The following expressions, used as shown in the Synopsis, return the indicated result:
• "PCI:Smart Array 6402"
Returns True if the Smart Array 5i Controller is found in the system
• HWQ:RAM gte 512
Returns True if the amount of RAM in the hardware discovery file is at least 512
• HWQ:EFIFw neq "1.10"
Returns True if the EFI Firmware version in the hardware discovery file is not 1.10
• HWQ:SystemName eq "Server rx4640"
True if the system name in the hardware discovery file exactly matches "Server rx4640"
• "PCI:Smart Array 6402" or "PCI:Smart Array 6404"
True if the system contains a Smart Array 6402 Controller or a Smart Array 6404 Controller
78 Utilities Reference
Description
This argument specifies the hardware discovery file used to run the query.
This argument specifies the allboards.xml PCI device list file, which is used to convert
PCI IDs found in hardware discovery into device names, such as "Smart Array 6402
Controller."
This argument specifies the query expression.