By tech specs WRT32X has 256Mb of flash memory.
# /bin/df -h Filesystem Size Used Available Use% Mounted on /dev/root 3.0M 3.0M 0 100% /rom tmpfs 250.0M 1.3M 248.7M 1% /tmp /dev/ubi0_1 97.9M 21.4M 71.7M 23% /overlay overlayfs:/overlay 97.9M 21.4M 71.7M 23% / tmpfs 512.0K 0 512.0K 0% /dev
Mounted only /dev/ubi0_1 with 97.9Mb
In dev there is /dev/ubi0_0
But I could not mount it
# mount /dev/ubi0_0 /mnt mount: mounting /dev/ubi0_0 on /mnt failed: Block device required
Where is 150Mb of free space flash?