Fresh install tplink archer c20 v5 shows less ram and storage

Installing and Using OpenWrt
1

Router has 8 MB storage and 64 MB RAM but it shows half of it. Recently installed 23.5.5 version.

BusyBox v1.36.1 (2024-11-06 10:43:07 UTC) built-in shell (ash)

| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -| || | | || || |
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|| W I R E L E S S F R E E D O M

OpenWrt 23.05.5, r24106-10cc5fcd00

root@OpenWrt:~# df -h
Filesystem Size Used Available Use% Mounted on
/dev/root 4.5M 4.5M 0 100% /rom
tmpfs 27.9M 4.0M 23.9M 14% /tmp
/dev/mtdblock5 768.0K 312.0K 456.0K 41% /overlay
overlayfs:/overlay 768.0K 312.0K 456.0K 41% /
tmpfs 512.0K 0 512.0K 0% /dev
root@OpenWrt:~#

root@OpenWrt:~# cat /etc/*-release
NAME="OpenWrt"
VERSION="23.05.5"
ID="openwrt"
ID_LIKE="lede openwrt"
PRETTY_NAME="OpenWrt 23.05.5"
VERSION_ID="23.05.5"
HOME_URL="https://openwrt.org/"
BUG_URL="https://bugs.openwrt.org/"
SUPPORT_URL="https://forum.openwrt.org/"
BUILD_ID="r24106-10cc5fcd00"
OPENWRT_BOARD="ramips/mt76x8"
OPENWRT_ARCH="mipsel_24kc"
OPENWRT_TAINTS=""
OPENWRT_DEVICE_MANUFACTURER="OpenWrt"
OPENWRT_DEVICE_MANUFACTURER_URL="https://openwrt.org/"
OPENWRT_DEVICE_PRODUCT="Generic"
OPENWRT_DEVICE_REVISION="v0"
OPENWRT_RELEASE="OpenWrt 23.05.5 r24106-10cc5fcd00"
root@OpenWrt:~#

2

Where do you think the Openwrt image is stored ?

/tmp is located in ram.

https://openwrt.org/supported_devices/864_warning

1 Like
3

It should be in /rom

4

yes, that's the mount point, where do you think it's stored ?

5

Its stored in flash memory. /rom reports only 4.5 MB as disk size however flash memory is 8 MB

6

do a cat /proc/mtd to see where the rest have gone.

whatever you see, this is what you get (more or less) with a 8MB device, if you want more space, get a newer/better device.

there's nothing wrong here, no error to report, move on.

2 Likes
7

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