I have downloaded bash & pyton.... How do I see how much storage is left on my router?
From command line:
root@Router-J1900:~# df -kh Filesystem Size Used Available Use% Mounted on /dev/root 252.0M 39.3M 207.6M 16% / tmpfs 1.9G 3.5M 1.9G 0% /tmp /dev/sda1 15.7M 4.0M 11.4M 26% /boot /dev/sda1 15.7M 4.0M 11.4M 26% /boot tmpfs 512.0K 0 512.0K 0% /dev root@Router-J1900:~#
Many OpenWrt installs use an overlay system. For most OpenWrt systems, that will start causing you significant problems with less than about 200 kB.
jeff@office:~$ df -h Filesystem Size Used Available Use% Mounted on /dev/root 10.0M 10.0M 0 100% /rom tmpfs 60.8M 184.0K 60.6M 0% /tmp /dev/mtdblock4 4.4M 1.6M 2.8M 36% /overlay overlayfs:/overlay 4.4M 1.6M 2.8M 36% / tmpfs 512.0K 0 512.0K 0% /dev
(The above from an Archer C7v2 with 16 MB of flash)
The critical line there is
overlayfs:/overlay 4.4M 1.6M 2.8M 36% /
/tmp/ is, as its name suggests, temporary storage. It is in memory and does not survive reboots. It also "goes against" your total RAM available for run-time applications and the kernel.
I got this:
Filesystem Size Used Available Use% Mounted on /dev/root 2.5M 2.5M 0 100% /rom tmpfs 61.1M 6.5M 54.6M 11% /tmp /dev/mtdblock5 27.9M 12.1M 15.7M 44% /overlay overlayfs:/overlay 27.9M 12.1M 15.7M 44% / tmpfs 512.0K 0 512.0K 0% /dev
Can I uninstall & recover space?
- Uninstalling packages you have installed manually after flashing your device -> spaced used by these packages will be available again
- Uninstalling packages which are included in the image you have flashed -> spaced used by these packages will NOT be available again
You appear to have over 15 MB of available space on your
/overlay for additional packages.
tmomas' advice is important. If you do not have enough space for what you want to install, you would need to build your own ROM, either with the image builder or with the build system. Incorporating a package into ROM very roughly halves its flash consumption as the ROM is highly compressed (
xz -9 for most targets I've worked with).
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