I have a gl.inet B2200 (https://openwrt.org/toh/gl.inet/gl-b2200. I Flashed it to version
OpenWrt 22.03.5 r20134-5f15225c1e.
When I check the size of the storage, it only gives about 512MB
root@OnzeB2200:~# parted /dev/mmcblk0 print
Model: MMC 8GTF4R (sd/mmc)
Disk /dev/mmcblk0: 7818MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
128 17.4kB 1049kB 1031kB bios_grub
1 1049kB 34.6MB 33.6MB 0:HLOS hidden, legacy_boot
2 34.6MB 169MB 134MB rootfs hidden
3 169MB 706MB 537MB f2fs rootfs_data
That's the same as in the documentation.
How can I increase the storage to the 8GB.
The first question would be, do you need that much on your overlay?
…or would it suffice to add a data partition with the rest of the disk (add another partition, format and use blockd to mount it somewhere, e.g. /srv/ or /opt/, whatever you're looking for - non-overlapping with the normal rootfs)?
The wiki has a guide to extend/ resize the overlay for x86 systems, the same approach probably applies here, but if you don't need to change the partitioning (which comes with a considerable risk), it's better to leave it.
At the end of the day, it's still a router and ~32 MB kernel + ~134 MB rootfs + ~537 MB overlay is plenty, especially with OpenWrt - I can't imagine that much that could fill that up (it's not a file server, after all).
How did you flash your B2200? I understand there are more details to that, as explained here in post #2 and post #7.
I have Velica myself, but still haven't gotten around to flashing it with OpenWrt...
I don't need the full 8G, but I run a step-ca on it, and Telegraf for monitoring. Both are large binaries, and the step DB keeps growing too.
Just adding an extra partition like slh suggests is more future-proof. You can still use the default OpenWrt images, no need to start tinkering with your DTS, building your own images etc.
If your hardware has USB I'd rather put your database on external storage if it sees frequent writes. Last thing you want is to wear out your internal storage.
This is exactly how the mount points look like on Velica with OEM setup: