User`s guide

Configuration>System>Boot Configuration
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AlterPath OnSite Administrator’s and User’s Guide
Local Boot Options
To understand the “Unit boot from” options, the administrative user need to
understand how the OnSite handles software upgrades:
• The OnSite initially boots from a software image referred to as “image1.”
• The first time you download and install a new software version from
Cyclades, the new image is stored as “image2” in the Flash memory and
the configuration is changed to boot the OnSite from “image 2.”
• The second time you download a new software version, the latest image is
stored as “image 1,” and the OnSite configuration is changed to boot from
“image1.”
• Subsequent downloads are stored following the same pattern, alternating
“image1” with “image2.”
In the “Unit boot from” pull-down menu, the entry for the current image is
selected by default. The word “image” is followed by the number, followed by
a colon (:), followed by the name of the file, including the version number.
The menu item has the following format:
image1:zvmppcons.vversion_number
The entry for the first release of the software, which is installed in the image1
area, is:
image1:zvmppcons.v100
After one or more software upgrades have been performed, a second image
also appears in the menu, for example:
image1:zvmppcons.v100
image2:zvmppcons.v101
If, for any reason, the system should boot from another image than the one
currently selected, the administrative user can select that image from the “Unit
boot from” menu.
Network Boot Options
Network boots are recommended only for troubleshooting or for possible
downloads of new software images that can be stored in the on-board Flash
memory, as described in “To Replace a Boot Image From a Network Boot in
U-Boot Monitor Mode” on page 572. See Appendix A, “Advanced Boot and