SecureStack C2 cannot be Successfully Upgraded to f/w 5.02.03.0012+ when Running f/w 5.00.xx

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Article ID: 11617

Products
SecureStack C2

Changes
Attempted to TFTP or Xmodem upgrade from firmware 5.00.28, 5.00.59, 5.00.75, or 5.00.79; directly to 5.02.03.0012 or higher.
Attempted to upgrade from an earlier 5.x firmware version to a later 5.x firmware version.

Symptoms
TFTP or Xmodem transfer of image successfully starts and proceeds to apparent 100% file transfer.
The upgrade process fails with an error message: "file transfer failed".

Cause
Later firmware versions are better at managing available flash memory, for upgrade purposes.

Solution/Workaround
First upgrade to version 5.01.04.0001, then reboot onto it, then upgrade to the final desired firmware version.

Note that this is not a common issue, and is in general not expected to occur, but has been reported more than once.
The general recommendation is to only invoke the above-stated two-stage upgrade remedy if the stated symptoms are actually encountered.

See also: 5605.
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Posted 5 years ago

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