SENA SS800 - Manual (Page 97)

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8. CLI Guide
8.1. Introduction
The Super Series root or System Administrator (only admin account is added for this group user by
factory default) can access the Linux console command line interface (CLI) of the Super Series via the
serial console or TELENT/SSH. In the CLI, the authorized user can perform standard Linux commands
to view the status of the Super Series, edit the configuration, apply configuration changes, define user
scripts and transmit files between the Super Series and remote hosts.
The Super Series provides 1024 KB user space mounted in /usr2 for read/write capabilities in its
internal flash memory. Using the user space, the user can create his own scripts or executable
binaries to customize the Super Series.
A root user will always have access to the CLI through the serial console on the Super Series back
panel or by using a Telnet client from their workstation.
A System Administrator cannot have access to the CLI. He can only access console configuration
menu or Web UI.
8.2. Flash Partition
The Super Series internal flash is partitioned as shown in the table below. The users can freely access
the Mtdblock5 which is mounted on /usr2 for their own needs. The user can also access files at
/etc , /var, and /temp at their own risk. Simply accessing these files will not affect the Super Series
after rebooting. However, if the user invokes the command saveconf, the changes in the
configuration file will be committed to the internal flash memory area of the Super Series. This will
result in the changes being kept after the reboot sequence. Invalid configuration changes can affect
the Super Series behavior. At worst, it may cause the Super Series to be inoperable.
Block Type Mount point Size (KB)
Mtdblock0 Bootloader None 128
Mtdblock1 Kernel None 768
Mtdblock2 CRAMFS (Read only) / 6080
Mtdblock3 Ram disk image (4MB) /etc, /var, /tmp 64
Mtdblock4 EXT2 (R/W) /cnf (normally unmounted) 64
Mtdblock5 JFFS2 (R/W) /usr2 1024
Mtdblock6 Reserved None 64
Total 8192