User`s manual

ThinkCore IA241/240 Linux User’s Manual Managing Embedded Linux
3-2
System Version Information
To determine the hardware capability of your IA241/240, and what kind of software functions are
supported, check the version numbers of your IA241/240’s hardware, kernel, and user file system.
Contact Moxa to determine the hardware version. You will need the Production S/N (Serial
number), which is located on the IA241/240’s bottom label.
To check the kernel version, type:
#kversion
192.168.3.127 – PuTTY
root@Moxa:~# kversion
Version 1.0
root@Moxa:~#
NOTE The kernel version number is for the factory default configuration, and if you download the latest
firmware version from Moxa’s website and then upgrade the IA241/240’s hardware.
System Image Backup
Upgrading the Firmware
The IA241/240’s bios, kernel, and root file system are combined into one firmware file, which can
be downloaded from Moxa’s website (
www.moxa.com). The name of the file has the form
ia240-x.x.x.frm or ia241-x.x.x.frm, with “x.x.x” indicating the firmware version. To upgrade the
firmware, download the firmware file to a PC, and then transfer the file to the IA241/240 via a
serial Console or Telnet Console connection.
ATTENTION
Upgrading the firmware will erase all data on the Flash ROM
If you are using the ramdisk to store code for your applications, beware that updating the
firmware will erase all of the data on the Flash ROM. You should back up your application files
and data before updating the firmware.
Since different Flash disks have different sizes, it’s a good idea to check the size of your Flash
disk before upgrading the firmware, or before using the disk to store your application and data
files. Use the
#df –h command to list the size of each memory block and how much free space is
available in each block.
192.168.3.127 – PuTTY
root@Moxa:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/mtdblock2 8.0M 6.0M 2.0M 75% /
/dev/ram0 499.0k 16.0k 458.0k 3% /var
/dev/mtdblock3 6.0M 488.0k 5.5M 8% /tmp
/dev/mtdblock3 6.0M 488.0k 5.5M 8% /home
/dev/mtdblock3 6.0M 488.0k 5.5M 8% /etc
tmpfs 30.4M 0 30.4M 0% /dev/shm
root@Moxa:~# upramdisk
root@Moxa:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/mtdblock2 8.0M 6.0M 2.0M 75% /
/dev/ram0 499.0k 16.0k 458.0k 3% /var