releasing package livecd-rootfs version 26.04.23

Determine used flavour by looking at the suffix of kernel.
hwe is currently the only one that needs to have a prefix
added so we can hardcode that.

debian/changelog

@@ -1,3 +1,28 @@
+livecd-rootfs (26.04.23) resolute; urgency=medium
+
+  [ Tobias Heider ]
+  * Fix ISO builds when KERNEL_FLAVOUR != generic.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Mon, 02 Mar 2026 10:51:47 +1300
+
+livecd-rootfs (26.04.22) resolute; urgency=medium
+
+  [ Oliver Gayot ]
+  * Pull the model from Launchpad's lp:canonical-models
+    repo, instead of having it uploaded as part of livecd-rootfs. This
+    indirection makes it possible to update the models without requiring a new
+    upload of livecd-rootfs every time.
+
+  [ Michael Hudson-Doyle ]
+  * Fix two more problems with livefs-built ISOs:
+    - Generate the for-iso squashfs in the right place for Kubuntu.
+    - Fix confusion about the kernel path on the ISO on riscv64.
+
+  [ Tobias Heider ]
+  * Fix pool generation when using extra_ppas.
+
+ -- Michael Hudson-Doyle <michael.hudson@ubuntu.com>  Thu, 26 Feb 2026 10:56:42 +1300
+
 livecd-rootfs (26.04.21) resolute; urgency=medium
 
   [ Dan Bungert ]

live-build/auto/build

@@ -576,7 +576,7 @@ if [ "${MAKE_ISO}" = "yes" ]; then
 	# create a for-iso.filesystem.squashfs that does.
 	if [ -z "$PASSES" ]; then
 		isobuild generate-sources --mountpoint=/cdrom > chroot/etc/apt/sources.list.d/cdrom.sources
-		create_squashfs chroot for-iso.filesystem.squashfs
+		create_squashfs chroot ${PWD}/for-iso.filesystem.squashfs
 	fi
 	# Link kernel and initrd files. The ${thing#${PREFIX}} expansion strips
 	# the PREFIX, so "livecd.ubuntu-server.kernel-generic" becomes

live-build/isobuilder/apt_state.py

@@ -108,10 +108,10 @@ class AptStateManager:
     def in_release_path(self) -> pathlib.Path:
         """Return the path to the InRelease file.
 
-        This assumes exactly one InRelease file matches the pattern.
+        This ignores all but the first path.
-        Will raise ValueError if there are 0 or multiple matches.
+        Will raise Error if there isn't at least one match.
         """
         [path] = self.apt_root.joinpath("var/lib/apt/lists").glob(
-            f"*_dists_{self.series}_InRelease"
+            f"*ubuntu.com*_dists_{self.series}_InRelease"
         )
         return path

live-build/isobuilder/builder.py

@@ -268,7 +268,7 @@ class ISOBuilder:
             target.hardlink_to(src)
 
         kernel_name = "vmlinuz"
-        if self.arch == "ppc64el":
+        if self.arch in ("ppc64el", "riscv64"):
             kernel_name = "vmlinux"
 
         with self.logger.logged(
@@ -278,19 +278,18 @@ class ISOBuilder:
                 for path in artifact_dir.glob(f"{filename_prefix}*.{ext}"):
                     newname = path.name[len(filename_prefix) :]
                     link(path, newname)
-            for suffix, prefix in (
+
-                ("-generic", ""),
+            for kernel_path in artifact_dir.glob(f"{filename_prefix}kernel*"):
-                ("-generic-hwe", "hwe-"),
+                suffix = kernel_path.name[len(filename_prefix) + len("kernel") :]
-            ):
+                prefix = "hwe-" if suffix.endswith("-hwe") else ""
-                if artifact_dir.joinpath(f"{filename_prefix}kernel{suffix}").exists():
+                link(
-                    link(
+                    artifact_dir.joinpath(f"{filename_prefix}kernel{suffix}"),
-                        artifact_dir.joinpath(f"{filename_prefix}kernel{suffix}"),
+                    f"{prefix}{kernel_name}",
-                        f"{prefix}{kernel_name}",
+                )
-                    )
+                link(
-                    link(
+                    artifact_dir.joinpath(f"{filename_prefix}initrd{suffix}"),
-                        artifact_dir.joinpath(f"{filename_prefix}initrd{suffix}"),
+                    f"{prefix}initrd",
-                        f"{prefix}initrd",
+                )
-                    )
         self._extract_casper_uuids()
 
     def make_bootable(self, project: str, capproject: str, subarch: str):

live-build/ubuntu/hooks/030-ubuntu-live-system-seed.binary

@@ -133,8 +133,25 @@ get_components()
 
 # env SNAPPY_STORE_NO_CDN=1 snap known --remote model series=16 brand-id=canonical model=ubuntu-classic-2410-amd64 > config/classic-model.model
 #
-dangerous_model=/usr/share/livecd-rootfs/live-build/${PROJECT}/ubuntu-classic-amd64-dangerous.model
+
-stable_model=/usr/share/livecd-rootfs/live-build/${PROJECT}/ubuntu-classic-amd64.model
+# We used to have the models included in livecd-rootfs itself, but now we pull
+# them from the Launchpad git mirror.
+canonical_models_tree=$(mktemp -d)
+git clone --depth 1 https://git.launchpad.net/canonical-models -- "${canonical_models_tree}"
+
+cleanup_repo()
+{
+    rm -rf -- "${canonical_models_tree}"
+}
+
+trap cleanup_repo EXIT
+
+echo 'Checked out canonical-models revision' "$(git -C "${canonical_models_tree}" rev-parse HEAD)"
+
+model_version=$(release_ver | sed 's/\.//')
+
+dangerous_model="${canonical_models_tree}"/ubuntu-classic-"${model_version}"-amd64-dangerous.model
+stable_model="${canonical_models_tree}"/ubuntu-classic-"${model_version}"-amd64.model
 
 prepare_args=()
 

live-build/ubuntu/ubuntu-classic-amd64-dangerous.model

@@ -1,109 +0,0 @@
-type: model
-authority-id: canonical
-series: 16
-brand-id: canonical
-model: ubuntu-classic-2604-amd64-dangerous
-architecture: amd64
-base: core24
-classic: true
-distribution: ubuntu
-grade: dangerous
-snaps:
-  -
-    default-channel: classic-26.04/edge
-    id: UqFziVZDHLSyO3TqSWgNBoAdHbLI4dAH
-    name: pc
-    type: gadget
-  -
-    components:
-      nvidia-590-uda-ko:
-        presence: optional
-      nvidia-590-uda-user:
-        presence: optional
-    default-channel: 26.04/beta
-    id: pYVQrBcKmBa0mZ4CCN7ExT6jH8rY1hza
-    name: pc-kernel
-    type: kernel
-  -
-    default-channel: latest/edge
-    id: amcUKQILKXHHTlmSa7NMdnXSx02dNeeT
-    name: core22
-    type: base
-  -
-    default-channel: latest/edge
-    id: dwTAh7MZZ01zyriOZErqd1JynQLiOGvM
-    name: core24
-    type: base
-  -
-    default-channel: latest/edge
-    id: cUqM61hRuZAJYmIS898Ux66VY61gBbZf
-    name: core26
-    type: base
-  -
-    default-channel: latest/edge
-    id: PMrrV4ml8uWuEUDBT8dSGnKUYbevVhc4
-    name: snapd
-    type: snapd
-  -
-    default-channel: latest/edge
-    id: EISPgh06mRh1vordZY9OZ34QHdd7OrdR
-    name: bare
-    type: base
-  -
-    default-channel: latest/edge
-    id: HyhSEBPv3vHsW6uOHkQR384NgI7S6zpj
-    name: mesa-2404
-    type: app
-  -
-    default-channel: 1/edge
-    id: EI0D1KHjP8XiwMZKqSjuh6W8zvcowUVP
-    name: firmware-updater
-    type: app
-  -
-    default-channel: 1/edge
-    id: FppXWunWzuRT2NUT9CwoBPNJNZBYOCk0
-    name: desktop-security-center
-    type: app
-  -
-    default-channel: 1/edge
-    id: aoc5lfC8aUd2VL8VpvynUJJhGXp5K6Dj
-    name: prompting-client
-    type: app
-  -
-    default-channel: 2/edge
-    id: gjf3IPXoRiipCu9K0kVu52f0H56fIksg
-    name: snap-store
-    type: app
-  -
-    default-channel: latest/edge
-    id: jZLfBRzf1cYlYysIjD2bwSzNtngY0qit
-    name: gtk-common-themes
-    type: app
-  -
-    default-channel: latest/edge
-    id: 3wdHCAVyZEmYsCMFDE9qt92UV8rC8Wdk
-    name: firefox
-    type: app
-  -
-    default-channel: latest/edge
-    id: ew7OxpbRTxfK7ImpIygRR85lkxvU7Pzt
-    name: gnome-46-2404
-    type: app
-  -
-    default-channel: latest/edge
-    id: IrwRHakqtzhFRHJOOPxKVPU0Kk7Erhcu
-    name: snapd-desktop-integration
-    type: app
-timestamp: 2026-02-24T15:37:46.0Z
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live-build/ubuntu/ubuntu-classic-amd64.model

@@ -1,104 +0,0 @@
-type: model
-authority-id: canonical
-series: 16
-brand-id: canonical
-model: ubuntu-classic-2604-amd64
-architecture: amd64
-base: core24
-classic: true
-distribution: ubuntu
-grade: signed
-snaps:
-  -
-    default-channel: classic-26.04/stable
-    id: UqFziVZDHLSyO3TqSWgNBoAdHbLI4dAH
-    name: pc
-    type: gadget
-  -
-    components:
-      nvidia-590-uda-ko:
-        presence: optional
-      nvidia-590-uda-user:
-        presence: optional
-    default-channel: 26.04/stable
-    id: pYVQrBcKmBa0mZ4CCN7ExT6jH8rY1hza
-    name: pc-kernel
-    type: kernel
-  -
-    default-channel: latest/stable
-    id: amcUKQILKXHHTlmSa7NMdnXSx02dNeeT
-    name: core22
-    type: base
-  -
-    default-channel: latest/stable
-    id: dwTAh7MZZ01zyriOZErqd1JynQLiOGvM
-    name: core24
-    type: base
-  -
-    default-channel: latest/stable
-    id: PMrrV4ml8uWuEUDBT8dSGnKUYbevVhc4
-    name: snapd
-    type: snapd
-  -
-    default-channel: latest/stable
-    id: EISPgh06mRh1vordZY9OZ34QHdd7OrdR
-    name: bare
-    type: base
-  -
-    default-channel: latest/stable/ubuntu-26.04
-    id: HyhSEBPv3vHsW6uOHkQR384NgI7S6zpj
-    name: mesa-2404
-    type: app
-  -
-    default-channel: 1/stable/ubuntu-26.04
-    id: EI0D1KHjP8XiwMZKqSjuh6W8zvcowUVP
-    name: firmware-updater
-    type: app
-  -
-    default-channel: 1/stable/ubuntu-26.04
-    id: FppXWunWzuRT2NUT9CwoBPNJNZBYOCk0
-    name: desktop-security-center
-    type: app
-  -
-    default-channel: 1/stable/ubuntu-26.04
-    id: aoc5lfC8aUd2VL8VpvynUJJhGXp5K6Dj
-    name: prompting-client
-    type: app
-  -
-    default-channel: 2/stable/ubuntu-26.04
-    id: gjf3IPXoRiipCu9K0kVu52f0H56fIksg
-    name: snap-store
-    type: app
-  -
-    default-channel: latest/stable/ubuntu-26.04
-    id: jZLfBRzf1cYlYysIjD2bwSzNtngY0qit
-    name: gtk-common-themes
-    type: app
-  -
-    default-channel: latest/stable/ubuntu-26.04
-    id: 3wdHCAVyZEmYsCMFDE9qt92UV8rC8Wdk
-    name: firefox
-    type: app
-  -
-    default-channel: latest/stable/ubuntu-26.04
-    id: ew7OxpbRTxfK7ImpIygRR85lkxvU7Pzt
-    name: gnome-46-2404
-    type: app
-  -
-    default-channel: latest/stable/ubuntu-26.04
-    id: IrwRHakqtzhFRHJOOPxKVPU0Kk7Erhcu
-    name: snapd-desktop-integration
-    type: app
-timestamp: 2026-02-24T15:34:40.0Z
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