Dropbear refusing my public key after reinstalling extroot

[kenny83]

UPDATE: After doing a little more digging on my own, I think I've narrowed down the problem to the advice given in this OpenWrt forums post.

Since I'm too inexperienced and lazy to compile my own firmware image, I followed the advice given by ThomasCr two weeks ago:

@ThomasCr

fixed this by the following line in /etc/rc.local

test -x /bin/bash && sed '/^root/ s_/bin/.*_/bin/bash_g' -i /etc/passwd || sed '/^root/ s_/bin/.*_/bin/ash_g' -i /etc/passwd

Now after splitting my extroot partition into two and configuring the first one as swap, then reconfiguring extroot on the second one and copying the files back to it from my backup image, I'm left with the same situation that the other posters in that thread were warning about (except that I can still thankfully connect with a password as described above).

Any ideas as to how I might fix this mess? Thanks again!