Switch to Ubuntu Minimal cloud image

.github/workflows/integration.yaml

@@ -78,11 +78,11 @@ jobs:
               --end-address 192.168.200.127 \
               --subnet-mask 255.255.255.0 \
               --stats-interval 1 \
-              --timeout 600 \
+              --timeout 300 \
               --verbose &
           pid=$!
           echo $pid > test.pid
-          if ! timeout 600s bash -c "until nc -z test-vmnet-helper.local 22 2>/dev/null; do true; done"; then
+          if ! timeout 300s bash -c "until nc -z test-vmnet-helper.local 22 2>/dev/null; do true; done"; then
               echo >&2 "Timeout waiting for test-vmnet-helper.local"
               exit 1
           fi

docs/docker.md

@@ -41,13 +41,13 @@ brew install docker vmnet-helper krunkit cdrtools qemu
 > Docker Desktop — you can keep both and switch between them using
 > `docker context use`.
 
-## Download an Ubuntu 26.04 cloud image
+## Download an Ubuntu 26.04 minimal cloud image
 
-Download an Ubuntu cloud image and convert to raw:
+Download an Ubuntu minimal cloud image and convert to raw:
 
 ```console
 curl --fail --location --output /tmp/ubuntu-26.04.qcow2 \
-    https://cloud-images.ubuntu.com/releases/26.04/release/ubuntu-26.04-server-cloudimg-arm64.img
+    https://cloud-images.ubuntu.com/minimal/releases/resolute/release/ubuntu-26.04-minimal-cloudimg-arm64.img
 mkdir -p ~/.cache/vm-images
 qemu-img convert -f qcow2 -O raw /tmp/ubuntu-26.04.qcow2 \
     ~/.cache/vm-images/ubuntu-26.04.img
@@ -90,6 +90,8 @@ users:
       - "$(cat ~/.ssh/id_ed25519.pub)"
 packages:
   - avahi-daemon
+bootcmd:
+  - systemctl mask systemd-networkd-wait-online.service
 EOF
 
 cat > ~/vms/$VM_NAME/meta-data << EOF

docs/examples.md

@@ -26,7 +26,7 @@ To start a virtual machine using *vfkit* run:
 ```console
 % ./run vm
 [   0.038] INFO Starting vmnet-helper for 'vm' with interface id '391ea262-d812-45b9-9526-e0ab5aeff7a2'
-[   0.058] INFO Downloading image 'https://cloud-images.ubuntu.com/releases/25.04/release/ubuntu-25.04-server-cloudimg-arm64.img'
+[   0.058] INFO Downloading image 'https://cloud-images.ubuntu.com/minimal/releases/resolute/release/ubuntu-26.04-minimal-cloudimg-arm64.img'
 [  19.384] INFO Converting image to 'raw' format '/Users/nir/.vmnet-helper/cache/images/7fef961f75d830af5d20db6da02bff7e33ce662a49bd4b433ed8f35a9f6a18c0/data'
 [  21.558] INFO Resizing image to 20g
 [  21.585] INFO Creating image '/Users/nir/.vmnet-helper/vms/vm/disk.img'

examples/download.sh

@@ -16,7 +16,7 @@ curl \
     --fail \
     --location \
     --output "$TMP_IMAGE" \
-    "https://cloud-images.ubuntu.com/releases/25.04/release/ubuntu-25.04-server-cloudimg-$IMAGE_ARCH.img"
+    "https://cloud-images.ubuntu.com/minimal/releases/resolute/release/ubuntu-26.04-minimal-cloudimg-$IMAGE_ARCH.img"
 
 # Convert to raw so we can use this image for vfkit.
 qemu-img convert -f qcow2 -O raw "$TMP_IMAGE" "$DISK_IMAGE"

testing/cidata.py

@@ -36,6 +36,12 @@
     # Ubuntu auto-enables and starts daemons on package install.
     "ubuntu": {
         "packages": ["avahi-daemon"],
+        # systemd-networkd-wait-online may block boot for 2 minutes waiting
+        # for all interfaces to be fully configured. We only need eth0
+        # (DHCP from vmnet) and don't care about the online target.
+        "bootcmd": [
+            "systemctl mask systemd-networkd-wait-online.service",
+        ],
     },
     "fedora": {
         "packages": ["avahi"],

testing/disks.py

@@ -14,15 +14,15 @@
 IMAGES = {
     "ubuntu": {
         "arm64": {
-            "image": f"https://cloud-images.ubuntu.com/releases/{UBUNTU_RELEASE}/release/ubuntu-{UBUNTU_RELEASE}-server-cloudimg-arm64.img",
+            "image": f"https://cloud-images.ubuntu.com/minimal/releases/resolute/release/ubuntu-{UBUNTU_RELEASE}-minimal-cloudimg-arm64.img",
         },
         "x86_64": {
-            "image": f"https://cloud-images.ubuntu.com/releases/{UBUNTU_RELEASE}/release/ubuntu-{UBUNTU_RELEASE}-server-cloudimg-amd64.img",
-            "kernel": f"https://cloud-images.ubuntu.com/releases/{UBUNTU_RELEASE}/release/unpacked/ubuntu-{UBUNTU_RELEASE}-server-cloudimg-amd64-vmlinuz-generic",
+            "image": f"https://cloud-images.ubuntu.com/minimal/releases/resolute/release/ubuntu-{UBUNTU_RELEASE}-minimal-cloudimg-amd64v3.img",
+            "kernel": f"https://cloud-images.ubuntu.com/minimal/releases/resolute/release/unpacked/ubuntu-{UBUNTU_RELEASE}-minimal-cloudimg-amd64v3-vmlinuz-generic",
             # Based on the default kernel cmdline when not using kernel and initrd:
             # BOOT_IMAGE=/vmlinuz-6.11.0-14-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0
             "kernel_parameters": [
-                "root=LABEL=cloudimg-rootfs",
+                "root=/dev/vda1",
                 "ro",
                 "console=tty1",
                 "console=ttyS0",
@@ -31,8 +31,9 @@
                 # Based on socket_vmnet fix:
                 # https://github.com/lima-vm/socket_vmnet/pull/56
                 "no_timer_check",
+                # May block boot for 2 minutes waiting for all interfaces.
+                "systemd.mask=systemd-networkd-wait-online.service",
             ],
-            "initrd": f"https://cloud-images.ubuntu.com/releases/{UBUNTU_RELEASE}/release/unpacked/ubuntu-{UBUNTU_RELEASE}-server-cloudimg-amd64-initrd-generic",
         },
     },
     "alpine": {