6 Software
User Manual
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How the mechanism of the overlay filesystem works
In addition to the root filesystem partition, which should be always mounted with read-only access, a data
partition "/mnt/dataflash" is available. The following directory structure can be found on that partition:
At startup of the TC1, the /etc, /usr, /libs, /home, /opt and /root directories of the root filesystem are
automatically overlaid with the content of directory /mnt/dataflash/stw/overlay.
For example the /etc directory is overlaid with /mnt/dataflash/stw/overlay/etc.
If a user changes or deletes a file in one of these root filesystem directories, the changes will be stored in the
corresponding /mnt/dataflash/stw/overlay directory.
Activate the overlay filesystem in the U-Boot
1. Connect the TC1 to the PC over RS232
2. Press and hold ESC while booting the TC1
"=>" this arrow means you are now in the U-Boot.
Summary of Contents for TC1
Page 1: ...TC1 User Manual Version of this document V1 00r0 ...
Page 25: ...5 Hardware User Manual 25 374 5 2 2 Block Diagram Variant TC1 WIFI ...
Page 34: ...5 Hardware User Manual 34 374 5 6 Housing Connector Top view and side view Bottom View ...
Page 125: ...7 Teleservice Application Framework User Manual 125 374 TAF overview ...
Page 190: ...7 Teleservice Application Framework User Manual 190 374 How the logger mechanism works ...