My d-link dir-2660 has 128MB rom, but the storage allocated for installing additional software is just 27MB and now has only 7MB free. I've read this instruction, but I'm not sure it exactly matches my rom structure. [OpenWrt Wiki] Extroot configuration
How do I expand this software storage by using the unused rom space?...thanks.
Thanks. The instruction is using usb flash drive as an overlay instead of the internal one. For my case, I want to use the unused space in ROM, but I don't know which /dev/? is the free rom space in order to make it an overlay replacement.
Okay. We can't use the internal unused storage to extend the overlay size. I've followed the Exroot config and use a USB flash drive partition as an overlay successfully.
There is one side effect. Reboot the router either from Luci gui or command line won't actually reboot it at all. I have to manually switch off and on at the router. What may have caused the issue, and any solution for this?
Another question is, before I did the exroot process, the USB flash drive was formatted into 3 ext4 partitions (dev/sda1, 2,3). After the exroot process, the first partition is now an overlay. I intend to mount the dev/sda2, and 3 as another two mount points for other usage. However, both do not show up in the list (Luci-->Systems-->Mount Points-->Add) when I want to add a mount point. Is it supposed to be like this?
You have 15'728'640 bytes in total at your disposal, for kernel + rootfs (/rom) + overlay, the split among them is dynamic. Including packages into the read-only rootfs is only possible at build-time (imagebuilder or building from source). In general, compression of squashfs (rootfs, /rom) should be slightly better than for the jffs2 backed overlay.
The absolute figure applies to the c7 v5 only, the principle is similar for all devices. The amount of usable flash storage depends on the size of your flash and your vendor's original partitioning (there can be less fortunate choices in terms of partitioning, leaving only small amounts usable despite larger physical flash chips).
Many of us need extra storage for software and games installation, if your computer is running out of storage, then you need to expand the storage. It is quite simple to increase the capacity of the hard drive on your Windows 10 PC. This article will guide you on how to expand storage for software installation.