In 15.1X49 @SRX300 series, Is not support [partition option] in the command that is [request system add software]?
I tested two versions of 15.1X49 that the one is D35 and the other one is D45.
My SRXs are 300 and 340 in my lab.
When use the [partition] option, the command displayed below output.
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root@srx300_sa> request system software add no-copy no-validate reboot partition /var/tmp/junos-srxsme-15.1X49-D50.3-domestic.tgz
ERROR: Could not determine the internal media for srx300
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Regards,
GENC