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Only steps (a) & (c) are required to upgrade VTOS 4.3.0 and later versions
In this case step (b) is required to ensure that the VFM partition is also upgraded
as well as the Boot & Root Partitions. The new VDM3.0 Client 7.12.4 must be
running on VTOS to ensure that the VFM Partition is upgraded which is why Step
(b) is necessary. The VFM partition on VTOS versions 4.2.4 & 4.2.5 is not capable
of carrying out upgrades over WiFi but the new 4.3.0 VFM partition is. After the
firmware 4.3.0 upgrade has been completed using steps (a), (b), (c) & (d) above, all
future upgrades can be done on Wired or WiFi Networks using just steps (a) & (c)
above
Further information on how upgrades are carried out is shown below
The Viewsonic Firmware Maintenance (VFM) partition is used for upgrading the
firmware, the SC-T25 boots from this partition during the Upgrade and runs the tiny
Ram based Upgrader which allows the current partitions to be rewritten with the new
VTOS
VTOS uses 3 separate partitions on the SD Card. VFM is the Viewsonic Firmware
Maintenance partition
(1) Boot
(2) VFM
(3) Root
VFM holds a tiny version of Linux that boots and runs completely in RAM, this is
used to carry out upgrades
The version of VFM on your Viewsonic 4.2.5 is very limited, it can only upgrade the
Boot and Root partitions not the VFM partition, and it can only carry out upgrades
over a Wired connection, NOT a WiFi connection. Also it does not retain the previous
information
Summary of Contents for SC-T25 VTOS
Page 1: ...SC T25 VTOS Thin Client User Guide Model No VS16585 ...
Page 13: ...6 You can also open an xterm with Ctrl Alt t and then enter alsamixer to set volumes ...
Page 33: ...26 User defined Bespoke Digital Signage ...
Page 34: ...27 Media Player launches SMplayer ...
Page 37: ...30 ...
Page 38: ...31 The About Tab Displays Copyright and Version information ...
Page 56: ......
