File Types Used by the Local File System
The following file types can be located in the local file system:
•
Operating System Software Image File
: This binary file type is identified by its
.bin
extension. The
file is the operating system that is loaded by the system upon startup or reloading. This is an executable,
read-only file that cannot be modified by end users.
•
CLI Configuration File
: This file type is identified by its
.cfg
extension. These are text files that contain
CLI commands that work in conjunction with the operating system software image. These files determine
services to be provided, hardware and software configurations, and other functions performed by the
system. The files are typically created by the end user. You can modify the files both on and off-line
and use descriptive long filenames.
•
System File
: Only one file identified by a
.sys
extension is used by the system. The boot.sys file contains
system-specific information, which describes how the system locates, and in what priority it loads, file
groups (paired .bin and .cfg files) from its boot stack.
•
Abridged Crash Log
: The abridged crash log, identified by its
crashlog
filename, contains summary
information about software or hardware failures that occur on the system. This file is located in the
/flash/crsh2/
directory on the device. You can view the contents of this file through the CLI, but you
cannot modify the file.
Understanding the boot.sys File
The system uses the boot.sys file to store the prioritized boot stack parameters and file groups the system uses
during startup. Modify this file only through system CLI commands and not through external means. Boot
parameters contain information the system needs to locate the operating system image file, including:
•
bootmode
: This setting is typically configured to normal, and identifies how the system starts.
•
network interface configuration
: Use these optional boot method settings when you configure the
system to obtain its operating system image from an external network server that is using one of the
management LAN interfaces on the SPIO card.
•
terminal-speed configuration
: This parameter identifies the data transfer rate at which a serial interface
communicates on the console port. The default setting for this parameter is 115200 bps (115.2 Kbps).
You can change this and other settings with RS-232 Port Configuration Mode commands.
•
boot stack information
: The boot stack is made up of prioritized file group entries that designate the
operating system image file and the CLI configuration file to load.
When a system is unpacked and started for the first time, the boot.sys file is configured to use the normal boot
mode and load the operating system software image from the /flash directory.
There is no CLI configuration file contained on the local file system. This causes the system to automatically
start its CLI-based Quick Setup Wizard upon the first successful boot. Refer to
Getting Started
for more
information on using the Quick Setup Wizard.
ASR 5000 System Administration Guide, StarOS Release 21.1
120
Software Management Operations
File Types Used by the Local File System
Summary of Contents for ASR 5000
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