Firstly, I am new to Linux.
I used Buildroot to generate a Linux Image with limited capabilities that I put on an SD Card and booted an ARM64 processor with no internet access. I am not entirely sure what type of Linux it is, though. I now want to be able to send new capabilities to the board (via packages). The board would then install those packages and, without rebooting, be able to utilize those new capabilities.
After doing some research on this topic I have found documentation from Buildroot that states there are some packages that would not require a rebuild, but that simply installing packages is risky because of dependencies. I also think this assumes that you are using the Buildroot
make menuconfig to add these packages and then run
make. I haven't found any information about packages that would not require a reboot to utilize.
I also came across information about downloading Debian packages and putting them onto a USB (or in my case sending them via wired connection) and then using
dpkg -i to install them. Unfortunately, when I type
dpkg --help when SSHed into the board, it returns "command not found", so I don't have that capability.
Any help on this is greatly appreciated!