ProxySG indicated error "% Failed to extract system image file" when I upgraded below OS images.
Error message on ProxySG's Management Console.
System image installation
Compiling new configuration file: uploaded configuration
Thu, XX SEP 2019 XX:XX:XX UTC
% Failed to extract system image file.
There was 1 error and 0 warnings
This is limitation for upgrade paths.
Please upgrade Pre 18.104.22.168 -> SGOS 22.214.171.124 -> SGOS 126.96.36.199.
[Note] Please upgrade Pre 188.8.131.52 -> SGOS 184.108.40.206 -> SGOS 220.127.116.11.