10MiB of storage, 216MiB of temp?

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I'm using the firmware from https://github.com/openwrt/openwrt/pull/18076 and I'm trying to understand why my router is saying that I have over 20x the temp space than the storage space on the firmware.

The partitions in the dts file don't specifically mention these, so how does OpenWRT find this data? How do I change it to be about 230MiB storage, and 26MiB temp? (If there are more reasonable values, let me know those, too.)

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/tmp is ramdisk (tmpfs) by default sized half of RAM.

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Thank you. Unfortunately it only has a 32MB flash chip... Some is config, other is backup, bootloader, etc. So I guess I can't do much on that. I'll look into using an industrial SD card I have on hand if I need to increase it at some point.

25Q256JVEQ - 32MB SPI FLASH