I built an image and it's too large! My rootfs is too small! My router does not remember settings!

Root cause:

• You selected too many packages in menuconfig: Packages selected with y or shown as * get included in squashfs instead of installing them later to jffs2.

Solutions:

• Delete unused base packages: be very careful
  Example ppp: luci automatically selects ppp. This is not always needed. In menuconfig,
  1. de-select luci
  2. pick the components manually: luci-base, luci-mod-admin-full, luci-theme-bootstrap
• Use extroot
• Disable busybox features
• Hardware mod your router with larger flash ( possible bootloader modification )

• Which packages can i safely remove to save space?
• Saving firmware space
• 4/32 warning
• OpenWrt on 4/32 devices