HP T5135 - Compaq Thin Client User Manual page 222

A Performing a Persistent Write Operation
on NeoLinux 4.x Devices
NeoLinux 4.x devices use three related file systems which are mounted as follows:
/
/writable
/.fs/org
Normally a user will perform all work under / or /writable, which are mounted as readable and writable
when the system starts up. The file system of /writable is used for storing persistent data, where files
can be created, modified or removed, and the changes will not be lost when the device reboots or shuts
down.
However, the file system of / works in a different way. Any modifications made in this file system are
temporary and will not be transferred to the actual disk, even though it is writable. When the device
reboots or shuts down the changes will be lost and the file system of / will revert to its original state.
Sometimes you may need to perform a persistent write to / in order to run commands, utilities, scripts,
etc. which require changes to be saved. This can be achieved using the third file system /.fs/org, which
is mounted from the same source as /. It is possible to create, modify or remove files persistently in /.fs/
org, but as it is mounted as read only you need to remount it to be writable before making any changes
to the file system, then reboot the device for the changes to take effect.
The Command sub-task in the File and Registry template for NeoLinux 4 devices includes options
enabling you to change the root directory to ./fs/org and mount it as writable.
The following procedure describes how to change the directory of a NeoLinux 4.x device to /.fs/org and
mount it as writable in order to perform commands:
1. With the NeoLinux 4 tab displayed, select the File and Registry tab in the Template Pane.
212 Appendix A Performing a Persistent Write Operation on NeoLinux 4.x Devices