Comment # 5 on bug 1177017 from Marc Joliet

(In reply to Jan Engelhardt from comment #4)
> Define not startable. Do you mean this error, or some other one?

I mean the error I pasted into my first comment.  Can you not see it?

> # /usr/libexec/iwd/iwd
> RC4 support not found
> The following options are missing in the kernel:
>         CONFIG_CRYPTO_USER_API_SKCIPHER
>         CONFIG_CRYPTO_ECB
>         CONFIG_CRYPTO_ARC4
> # echo $?
> 1

That matches precisely what's visible in the journal output in my first
comment, including the return code of iwd ("iwd.service: Main process exited,
code=exited, status=1/FAILURE").  I *also* ran the commands as you did, with
identical results.