I have an Sercomm H-500 https://openwrt.org/toh/sercomm/h500-s device that has 128MB of FLASH memory.
I have installed an openwrt image. Last 22.03.4
The image size is 5.5MB. (downloaded)
The overlay size is 33.1MB.
Where are the remaining 89MB?
Filesystem Size Used Available Use% Mounted on /dev/root 3.0M 3.0M 0 100% /rom tmpfs 59.1M 236.0K 58.9M 0% /tmp /dev/ubi0_1 33.1M 164.0K 31.3M 1% /overlay overlayfs:/overlay 33.1M 164.0K 31.3M 1% / tmpfs 512.0K 0 512.0K 0% /dev
Is there a way to increase this memory in an easy way?