Simplify how serial-getty@.service is customized in the live server installer environment.

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (2.720) UNRELEASED; urgency=medium
+
+  * Simplify how serial-getty@.service is customized in the live server
+    installer environment.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Wed, 21 Apr 2021 11:37:17 +1200
+
 livecd-rootfs (2.719) hirsute; urgency=medium
 
   * Our raspi server images should have used the raspi-server seed in hirsute,

live-build/ubuntu-server/includes.binary/overlay/usr/lib/systemd/system/getty@tty1.service.d/conditional.conf

@@ -1,2 +0,0 @@
-[Unit]
-ConditionPathExists=/run/subiquity/complete

live-build/ubuntu-server/includes.binary/overlay/usr/lib/systemd/system/serial-getty@.service.d/subiquity-serial.conf

@@ -1,2 +1,8 @@
+[Unit]
+Description=Subiquity, the installer for Ubuntu Server %I
+After=snapd.seeded.service
+StartLimitInterval=0
+
 [Service]
-ExecStartPre=/bin/systemctl start serial-subiquity@%i.service
+Environment=SNAP_REEXEC=0
+ExecStart=/usr/bin/snap run subiquity.subiquity-service %I

live-build/ubuntu-server/includes.binary/overlay/usr/lib/systemd/system/serial-getty@sclp_line0.service.d/subiquity-serial.conf

@@ -1,6 +1,2 @@
-[Unit]
-After=cloud-final.service snapd.seeded.service
 [Service]
-StandardOutput=tty
-ExecStartPre=
-ExecStartPre=/usr/bin/snap run subiquity --ssh
+ExecStart=/usr/bin/snap run subiquity --ssh

live-build/ubuntu-server/includes.binary/overlay/usr/lib/systemd/system/serial-subiquity@.service

@@ -1,23 +0,0 @@
-[Unit]
-Description=Subiquity, the installer for Ubuntu Server %I
-BindsTo=dev-%i.device
-After=dev-%i.device systemd-user-sessions.service plymouth-quit-wait.service cloud-final.service snapd.seeded.service
-After=rc-local.service
-ConditionPathExists=!/run/subiquity/complete
-StartLimitInterval=0
-
-[Service]
-Environment=SNAP_REEXEC=0
-ExecStartPre=/bin/systemctl stop serial-getty@%I
-ExecStart=/usr/bin/snap run subiquity.subiquity-service %I
-ExecStopPost=/bin/systemctl start serial-getty@%I
-Type=idle
-Restart=always
-RestartSec=0
-UtmpIdentifier=%I
-TTYPath=/dev/%I
-TTYReset=yes
-TTYVHangup=yes
-KillMode=process
-IgnoreSIGPIPE=no
-SendSIGHUP=yes

live-build/ubuntu-server/includes.binary/overlay/usr/lib/systemd/system/snap.subiquity.subiquity-service.service.d/subiquity.conf

@@ -1,7 +1,6 @@
 [Unit]
 IgnoreOnIsolate=yes
 After=systemd-user-sessions.service plymouth-quit-wait.service snap.seeded.service
-ConditionPathExists=!/run/subiquity/complete
 
 [Service]
 Environment=SNAP_REEXEC=0