Move configuration of casper in ubuntu-serve:live builds to a "chroot early" hook for the installer layer and remove the now unnecessary update-initramfs from the binary hook that breaks because mkinitramfs now requires that /sys is mounted. (LP: #2097280)

debian/changelog

@@ -1,6 +1,10 @@
 livecd-rootfs (25.04.12) UNRELEASED; urgency=medium
 
   * Stop producing a rootfs tarball for the ubuntu-mini-iso builds.
+  * Move configuration of casper in ubuntu-serve:live builds to a "chroot
+    early" hook for the installer layer and remove the now unnecessary
+    update-initramfs from the binary hook that breaks because mkinitramfs
+    now requires that /sys is mounted. (LP: #2097280)
 
  -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Wed, 05 Feb 2025 11:20:05 +1300
 

live-build/ubuntu-server/hooks/02-installer-bits.chroot_early

@@ -0,0 +1,17 @@
+#!/bin/bash -ex
+# vi: ts=4 noexpandtab
+
+case $PASS in
+    ubuntu-server-minimal.ubuntu-server.installer.*)
+        exit 0
+        ;;
+    ubuntu-server-minimal.ubuntu-server.installer)
+        ;;
+    *)
+        exit 0
+        ;;
+esac
+
+cat <<EOF > /etc/initramfs-tools/conf.d/casperize.conf
+export CASPER_GENERATE_UUID=1
+EOF

live-build/ubuntu-server/hooks/03-kernel-metapkg.chroot_early

@@ -12,10 +12,6 @@ case $PASS in
         ;;
 esac
 
-cat <<EOF > /etc/initramfs-tools/conf.d/casperize.conf
-export CASPER_GENERATE_UUID=1
-EOF
-
 cat <<EOF > /etc/initramfs-tools/conf.d/default-layer.conf
 LAYERFS_PATH=${PASS}.squashfs
 EOF

live-build/ubuntu-server/hooks/04-kernel-bits.binary

@@ -15,9 +15,6 @@ esac
 
 PROJECT=$PROJECT${SUBARCH:+-$SUBARCH}
 
-# ensure this initrd is casperized
-chroot chroot update-initramfs -u
-
 # Fish out generated kernel image and initrd
 mv chroot/boot/initrd.img-* ${PWD}/livecd.${PROJECT}.initrd-$flavor
 mv chroot/boot/vmlinu?-* ${PWD}/livecd.${PROJECT}.kernel-$flavor