su - mastodon: "This account is currently not available."

[tibequadorian]

The following line in https://docs.joinmastodon.org/admin/install/#installing-ruby

adduser --disabled-login mastodon

will set the login shell to /usr/sbin/nologin and therefore the following line

su - mastodon

results in

This account is currently not available.

unless used with -s /bin/bash

This happened to me on Debian 12.
See this commit: https://salsa.debian.org/debian/adduser/-/commit/427ade7d9116af5af7baa9d0c538e14fa86560cf

[vmstan]

I think I've run into this in testing as well.

[Lastorder-DC]

--disabled-login should be --disabled-password if not setting password is primary objective.
above error can be fixed by setting shell by chsh -s /bin/bash mastodon

p.s.) It's really hard to change single word, is it?