Add defaults and customizations to YTL-Linux

docs/autoinstall-config-24/user-data

@@ -189,6 +189,9 @@ autoinstall:
     - ytl-linux-customize-24
     - ytl-linux-purge-deb
     - snapd
+    # Required for in-place JSON file editing
+    - jq
+    - moreutils
   snaps:
     - name: firefox
   storage:
@@ -203,6 +206,30 @@ autoinstall:
           groups: sudo,adm,cdrom,dip,plugdev,lxd,docker
           lock_passwd: false
           shell: /bin/bash
+      write_files:
+        # Add default Firefox settings
+        - path: /etc/firefox/policies/policies.json
+          content: |
+            {
+              "policies": {
+                "DownloadDirectory": "/home/school/ktp-jako",
+                "Homepage": {
+                  "URL": "https://oma.abitti.fi/",
+                  "StartPage": "homepage"
+                },
+                "NewTabPage": false,
+                "OverrideFirstRunPage": "",
+                "OverridePostUpdatePage": "",
+                "TranslateEnabled": false,
+                "Preferences": {
+                  "dom.input.fallbackUploadDir": "/home/school/ktp-jako"
+                }
+              }
+            }
+          permissions: '0644'
+      runcmd:
+        # Disable keyboard and mouse integration notification popups in VirtualBox
+        - su - school -c 'VBoxManage setextradata global GUI/SuppressMessages remindAboutMouseIntegration,remindAboutAutoCapture'
   ssh:
       install-server: no
   late-commands:
@@ -233,3 +260,7 @@ autoinstall:
     # Set hostname (cannot be set in identity section as we use user-data to create the user)
     # Tried using hostnamectl set-hostname, but it doesn't properly work in curtin for some unexplained reason, so good ol' echo it is
     - echo ktp > /target/etc/hostname
+    # Unpin the non-existing pinned by default Firefox (non-snap) from the taskbar
+    - curtin in-target --target=/target -- bash -c 'jq '\''."pinned-apps".default -= ["firefox.desktop"]'\'' /usr/share/cinnamon/applets/grouped-window-list@cinnamon.org/settings-schema.json | sponge /usr/share/cinnamon/applets/grouped-window-list@cinnamon.org/settings-schema.json'
+    # Pin Firefox (snap), Naksu and Naksu 2 to taskbar
+    - curtin in-target --target=/target -- bash -c 'jq '\''."pinned-apps".default += ["firefox_firefox.desktop", "naksu.desktop", "naksu2.desktop"]'\'' /usr/share/cinnamon/applets/grouped-window-list@cinnamon.org/settings-schema.json | sponge /usr/share/cinnamon/applets/grouped-window-list@cinnamon.org/settings-schema.json'    

download-ubuntu-base-image

@@ -8,7 +8,7 @@ if [[ -z "${1:-}" ]]; then
 fi
 
 # location of the original Ubuntu installation ISO image
-DOWNLOAD_URL=https://releases.ubuntu.com/noble/ubuntu-24.04.2-live-server-amd64.iso
+DOWNLOAD_URL=https://releases.ubuntu.com/noble/ubuntu-24.04.3-live-server-amd64.iso
 IMAGE="$1"
 
 if [ ! -e "$IMAGE" ]; then

packages/ytl-linux-customize-24/dconf/01-power-settings

@@ -6,3 +6,33 @@ sleep-display-ac=0
 sleep-display-battery=0
 sleep-inactive-ac-timeout=0
 sleep-inactive-battery-timeout=0
+
+# Disable lid and power button actions.
+lid-close-battery-action='nothing'
+lid-close-ac-action='nothing'
+button-power='nothing'
+
+# Disable screensaver.
+[org/cinnamon/desktop/session]
+idle-delay=uint32 0
+
+# Disable sleep timeouts as well as lid and power button actions on login screen before first login.
+# Before the first Cinnamon session is started after boot, the power settings of Unity Greeter (login screen) are in effect.
+# This causes the computer to sleep if left sitting in login screen after install or boot.
+# Additionally, the computer might not recover from this sleep but show a black screen instead after waking up.
+# The only solution is to reboot the computer by long-pressing the power button or by going blind to e.g. tty2 using Ctrl+Alt+F2 and then rebooting using Ctrl+Alt+Delete.
+[com/canonical/unity/settings-daemon/plugins/power]
+sleep-inactive-ac-timeout=0
+sleep-inactive-battery-timeout=0
+lid-close-battery-action='nothing'
+lid-close-ac-action='nothing'
+power-button-action='nothing'
+
+# Do the same just in case for Gnome settings. This might not be necessary, but won't hurt either.
+# The combination of Unity Greeter, Cinnamon Desktop and LightDM Display Manager is somewhat unstable and settings from multiple components can conflict.
+[org/gnome/settings-daemon/plugins/power]
+sleep-inactive-ac-timeout=0
+sleep-inactive-battery-timeout=0
+lid-close-battery-action='nothing'
+lid-close-ac-action='nothing'
+power-button-action='nothing'

packages/ytl-linux-purge-deb/Makefile

@@ -14,7 +14,9 @@ CONFLICTS := \
 	--conflicts cups-ipp-utils \
 	--conflicts cups-pdf \
 	--conflicts cups-ppdc \
-	--conflicts cups-server-common
+	--conflicts cups-server-common \
+	--conflicts gnome-keyring \
+	--conflicts apport
 
 DEB_ROOT := deb-root