rails6 activestorageで保存した画像が表示できない

activestorageを使って画像を保存してviewに表示したいのですが表示できません。
どこが違うか分かる方がいたらよろしくお願いします。

以下やったことです。

$ rails active_storage:install
$ rails db:migrate

ruby
1# models/post.rb
2
3has_one_attached :image

html
1<%= form_with url: posts_path do |f| %>
2    <div class='field'>
3      <%= f.label :title, 'タイトル' %><br>
4      <%= f.text_area :title %><br>
5    </div>
6    <div class='field'>
7      <%= f.label :content, "コンテンツ" %><br>
8      <%= f.rich_text_area :content %>
9    </div>
10    <div class='field'>
11      <%= f.label :image, "サムネイルを設定" %><br>
12      <%= f.file_field :image %>
13    </div>
14    <%= f.submit "送信" %>
15  <% end %>

html
1<!-- posts/index.html.erb -->
2
3<% @posts.each do |post| %>
4  <% if post.image.attached? %>
5    <%= image_tag post.image %><br>
6  <% end %>
7  <%= link_to("title: #{post.title}", "/posts/#{post.id}") %><br>
8<% end %>

ruby
1# config/environments/development.rb
2
3config.active_storage.service = :local

[config/storage.yml] 

test:
  service: Disk
  root: <%= Rails.root.join("tmp/storage") %>

local:
  service: Disk
  root: <%= Rails.root.join("storage") %>

Started GET "/posts" for ::1 at 2021-04-10 22:36:02 +0900
Processing by PostsController#index as HTML
  Rendering layout layouts/application.html.erb
  Rendering posts/index.html.erb within layouts/application
  User Load (0.4ms)  SELECT "users".* FROM "users" WHERE "users"."id" = ? ORDER BY "users"."id" ASC LIMIT ?  [["id", 1], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:2
  Post Load (0.7ms)  SELECT "posts".* FROM "posts" ORDER BY "posts"."created_at" DESC
  ↳ app/views/posts/index.html.erb:15
  ActiveStorage::Attachment Load (0.5ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 9], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.5ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 8], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.4ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 7], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.5ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 6], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.4ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 5], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.4ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 4], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.4ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 3], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.4ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 2], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16
  ActiveStorage::Attachment Load (0.4ms)  SELECT "active_storage_attachments".* FROM "active_storage_attachments" WHERE "active_storage_attachments"."record_id" = ? AND "active_storage_attachments"."record_type" = ? AND "active_storage_attachments"."name" = ? LIMIT ?  [["record_id", 1], ["record_type", "Post"], ["name", "image"], ["LIMIT", 1]]
  ↳ app/views/posts/index.html.erb:16

こんな感じになっています.
新規投稿を作成してcreateされてredirectはされるのですがviewには何も表示されません。
よろしくお願いします。