OpenWrt Storage

• openwrt-flash-analyzer
  • comprehensive OpenWrt shell script to analyze and visualize NAND & NOR flash partitions with usage stats, bad block detection, and a user-friendly summary

Freeing space

• FAQ: No space left on device
• How to list only packages that I have installed?
  • Script to show installed packages after flashing
• Recover from full /overlay

What helped after package installation broke and left half-installed packages:

• Removed leftovers from /overlay/upper/usr/lib/
• Reboot

USB Storage

Quick Start for Adding a USB drive

Extroot

• Extroot docs
• OpenWRT: Expand Storage Space and Memory

For SD-Card usage (kmod-usb-storage needs to be installed to access a sd-card, at least on the GL.Inet X-750):

opkg install kmod-mmc kmod-usb-storage
ls -al /sys/block/
ls -la ls -al /dev/sd*
parted -s /dev/sda -- mklabel gpt mkpart extroot 2048s -2048s