I have a Geeetech Iduino Yun shield, that initially had Geetech's System image (v2.02, 2015) on it. I then ran a USB storage expander sketch to take advantage of the space on a flash drive. I then installed a number of packages (such as
vim). I subsequently flashed/updated the firmware with Dragino v2 yun-4.1.2 sysupgrade firmware, only to find that
vim and other packages have disappeared, as well as my Python code.
Has the update undone the expansion and is the Linux system now confined to what's provided by the firmware? Do I need to run an expansion sketch and install packages again?