Write Debian USB scenario and adapt steps accordingly

wiki/src/install/debian/usb.mdwn

 [[!meta robots="noindex"]]
-[[!meta stylesheet="bootstrap" rel="stylesheet"]]
+[[!meta title="Installing Tails on a USB stick from Debian or Ubuntu"]]
+[[!meta stylesheet="inc/stylesheets/steps" rel="stylesheet" title=""]]
+[[!meta stylesheet="inc/stylesheets/debian-usb" rel="stylesheet" title=""]]
 
 [[Back|install/debian]]
 
-Debian to USB
+[[!inline pages="install/inc/steps/install_tails_installer.inline" raw="yes"]]
+
+[[!inline pages="install/inc/steps/install_final.inline" raw="yes"]]
+
+[[!inline pages="install/inc/steps/switch.inline" raw="yes"]]
+
+[[!inline pages="install/inc/steps/restart_first_time.inline" raw="yes"]]
+
+[[!inline pages="install/inc/steps/create_persistence.inline" raw="yes"]]

wiki/src/install/inc/steps/create_persistence.inline.mdwn

@@ -96,7 +96,7 @@ Passphrase</span> text boxes. Click on the <span class="guilabel">Create</span>
 
 5. Click **Save**.
 
-   <div class="step-image">[[!img inc/infography/restart-on-final-tails-with-persistence.png link="no"]]</div>
+   <div class="step-image">[[!img inc/infography/restart-on-tails.png link="no"]]</div>
 
 1. Shut down the computer and restart on <span class="windows-usb linux-usb mac-usb">the final</span><span class="clone">the new</span> Tails<span class="dvd"> USB stick</span>.
 

wiki/src/install/inc/steps/install_final.inline.mdwn

@@ -12,11 +12,12 @@ using *Tails Installer*.
 </div>
 
 <div class="step-image">
-[[!img inc/infography/plug-second-usb.png link="no" class="usb clone"]]
+[[!img inc/infography/plug-usb.png link="no" class="debian-usb"]]
+[[!img inc/infography/plug-second-usb.png link="no" class="windows-usb linux-usb mac-usb clone"]]
 [[!img inc/infography/plug-tails-usb.png link="no" class="dvd"]]
 </div>
 
-1. Plug the <span class="usb">second</span><span class="clone">new</span> USB stick in the computer.
+1. Plug the <span class="windows-usb linux-usb mac-usb">second</span><span class="clone">new</span> USB stick in the computer.
 
 1. <div class="windows linux mac"><p>
    Choose
@@ -41,12 +42,13 @@ using *Tails Installer*.
    [[!img inc/screenshots/tails_installer_in_debian.png link=no class="debian expert"]]
 
    <div class="step-image">
-   [[!img inc/infography/clone-temporary-tails.png link="no" class="usb clone"]]
+   [[!img inc/infography/install-tails.png link="no" class="debian-usb"]]
+   [[!img inc/infography/clone-temporary-tails.png link="no" class="windows-usb linux-usb mac-usb clone"]]
    [[!img inc/infography/clone-dvd.png link="no" class="dvd"]]
    </div>
 
 1. Use the <span class="guilabel">Target Device</span> drop-down list to
-   specify the <span class="usb">second</span><span class="clone">new</span> USB stick.
+   specify the <span class="windows-usb linux-usb mac-usb">second</span><span class="clone">new</span> USB stick.
 
 1. To start the installation, click on the <span
    class="button">Install Tails</span> button.

wiki/src/install/inc/steps/restart_first_time.inline.mdwn

@@ -3,7 +3,8 @@ Restart on <span class="windows-usb linux-usb win-usb">the temporary</span><span
 
 <div class="step-image">
 [[!img inc/infography/plug-source-usb.png link="no" class="clone"]]
-[[!img inc/infography/restart-on-temporary-tails.png link="no" class="clone usb"]]
+[[!img inc/infography/restart-on-tails.png link="no" class="debian-usb"]]
+[[!img inc/infography/restart-on-temporary-tails.png link="no" class="clone windows-usb linux-usb mac-usb"]]
 [[!img inc/infography/restart-on-dvd.png link="no" class="dvd"]]
 </div>
 
@@ -43,9 +44,10 @@ in a similar way.</p>
 
      [[!img doc/first_steps/start_tails/tails_boot_menu.png link=no alt="Black screen with Tails artwork. 'Boot menu' with two options 'Live' and 'Live (failsafe)'."]]
 
-   <div class="note windows debian linux">
+   <div class="note debian expert windows linux">
    <p>Most computers do not start on Tails by default. If it does you
    are lucky. Otherwise, if the computer starts on
+   <span class="debian expert">Debian or Ubuntu,</span>
    <span class="windows">Windows,</span>
    <span class="linux">Linux,</span> refer to the
    troubleshooting section about [[!toggle id="not_at_all" text="Tails

wiki/src/install/inc/steps/switch.inline.mdwn

@@ -13,6 +13,7 @@ the rest of the instructions afterwards, we recommend you either:
    [[!img inc/qrcodes/tails_boum_org_install_mac_usb.png class="mac-usb" link="no"]]
    [[!img inc/qrcodes/tails_boum_org_install_mac_clone.png class="mac-clone" link="no"]]
    [[!img inc/qrcodes/tails_boum_org_install_mac_dvd.png class="mac-dvd" link="no"]]
+   [[!img inc/qrcodes/tails_boum_org_install_debian_usb.png class="debian-usb" link="no"]]
    [[!img inc/qrcodes/tails_boum_org_install_debian_clone.png class="debian-clone" link="no"]]
    [[!img inc/qrcodes/tails_boum_org_install_expert_usb.png class="expert-usb" link="no"]]
    [[!img inc/qrcodes/tails_boum_org_install_linux_usb.png class="linux-usb" link="no"]]
@@ -27,6 +28,7 @@ the rest of the instructions afterwards, we recommend you either:
      <a class="mac-usb" href="https://tails.boum.org/install/mac/usb/">https://tails.boum.org/install/mac/usb/</a>
      <a class="mac-clone" href="https://tails.boum.org/install/mac/clone/">https://tails.boum.org/install/mac/clone/</a>
      <a class="mac-dvd" href="https://tails.boum.org/install/mac/dvd/">https://tails.boum.org/install/mac/dvd/</a>
+     <a class="debian-usb" href="https://tails.boum.org/install/debian/usb/">https://tails.boum.org/install/debian/usb/</a>
      <a class="debian-clone" href="https://tails.boum.org/install/debian/clone/">https://tails.boum.org/install/debian/clone/</a>
      <a class="expert-usb" href="https://tails.boum.org/install/expert/usb/">https://tails.boum.org/install/expert/usb/</a>
      <a class="linux-usb" href="https://tails.boum.org/install/linux/usb/">https://tails.boum.org/install/linux/usb/</a>

wiki/src/install/inc/stylesheets/debian-usb.css

+@import url("debian.css");
+@import url("usb.css");
+span.debian-usb, a.debian-usb {
+  display: inline;
+}
+div.debian-usb, img.debian-usb, p.debian-usb {
+  display: block;
+}
+li.debian-usb {
+  display: list-item;
+}