On 2018-04-11 16:09, Luiz Angelo Daros de Luca wrote:

You can also expand the overlay partition directly on img file or after the

First expand this physical partition. I like to do it with parted (script
friendly) but it is not available
as OpenWrt tool:

$ /usr/sbin/parted OpenWrt...combined.img resizepart 2 100%

Nice! That worked. Partition resized.
GParted did not let me do that.

Now resizing the filesystem depends on which fs you use. If you are using
f2fs (LEDE and OpenWrt snapshot),
you can expand using a mounted filesystem. You just need to remount overlay
as ro. It might be a bug
but when I did in a rw mounted fs, it exploded my filesystem.

# mount -o remount,ro /overlay
# resize.f2fs /dev/loop0 # from f2fs-tools
# reboot

As a matter of fact I did not have to do the resize.f2fs.
Perhaps because my image contained the f2fs-tools package the fs was automatically resized on first boot (just speculating).

Now I have 932MB on /overlay and I'm happy :)

Thanks a lot for the help.


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