i came across one usb mass storage UDC core missing issue with petalinux 2018.2 with zu9cg device under unbuntun 16.4
all steps run with https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18842410/Zynq+UltraScale+MPSoC+USB+3.0+Mass+Storage+Device+Class+Design.
but udc-core couldn't find an aviailable UDC - added [g_mass_storage]
and ls /sys/class/udc found nothing
one more information is baremetal example is run fine on zu9cg borad.
i wonder any one could be give some advice.
Thank you so much.