64 • Board Support Package (BSP)
The Console of the Linux Fieldbus Coupler
WAGO-I/O-SYSTEM 750
Linux Fieldbus Coupler
4.3.2 Busybox
Busybox combines many standard Linux distribution programs in one single
program in order to minimize memory requirements of the file system. The
program is only started via symbolic links. Busybox evaluates the name and
can in this way implement different functions in one program.
When compiling Busybox you can choose the programs to be integrated. It is
thus possible to adapt the size of the program to the required functions. The
Linux fieldbus coupler implements all the required functions for a minimum
system.
The following call lists the implemented programs: make menuconfig:
Customize Vendor/User Settings
By changing the Busybox settings
during compilation they can be changed arbitrarily (see chapter 5). The list
contains the following programs:
• mount
Linking file system to the kernel
• reboot
Rebooting the Linux fieldbus coupler
• insmod
Linking kernel modules
• chroot
Sets the root directory in which programs are run
• killall
Deletes programs (killall + program name)
• pivot_root
Changes the root file system
• ifconfig
View/change the current Ethernet settings. Changes are not accepted.
Please use the wagoset program.
• hostname
Changes the local host name
• syslogd
Creates the log file /var/log/messages
• modprobe
Loads kernel modules
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