MAG-200 Operator Guide Rev 1.05.
Configuration and organization of the upgrading process using cyclic
multicast group
To configure the system of upgrading images on the device using a cyclic multicast group
perform the following steps:
•
Adjust
DHCP-server;
•
Adjust
the
utility
mcsend
for cyclic broadcasting bootstrap and the image to upgrade
to multicast group;
•
Prepare images for broadcasting;
•
Start the utility
mcsend
The files Bootstrap and
imageupgrade are brosdcast for upgrading the program on the device. The
file imageupgrade is a container handled by the Boostrap, which contains the signed images of
the sections mtd4 and mtd5.
Preparation of images for broadcasting
Before preparing the images set the operator key prepared by the operator or
the default operator key. To use the default key perform the following commands:
gpg --import stb_secbin.key
export MAG200_OP_KEY=STB_PUBLIC
The program contains the following images prepared for operation with default operator
key:
File name
Description
Bootstrap
Bootstrap
uImage
The core signed and prepared for start by the bootstrap. It is used for
forming the image for upgrade, when working with nfs
uImzlib_null.img
The section mtd4 image – is a file system jffs2 with uImage
uImzlib.img
uImzlib.img signed image uImzlib_null.img for including to
upgradeimage.
If the operator key is used it is possible to use the files included in the software, if the
key differs from the default key, the above mentioned files must be formed again.
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