{"id":326,"date":"2025-06-25T00:00:31","date_gmt":"2025-06-24T15:00:31","guid":{"rendered":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/?p=326"},"modified":"2026-06-13T01:26:46","modified_gmt":"2026-06-12T16:26:46","slug":"qemu-x-ubuntu-cloud-image-%e7%92%b0%e5%a2%83%e6%a7%8b%e7%af%89%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/2025\/06\/25\/qemu-x-ubuntu-cloud-image-%e7%92%b0%e5%a2%83%e6%a7%8b%e7%af%89%e3%82%ac%e3%82%a4%e3%83%89\/","title":{"rendered":"QEMU \u00d7 Ubuntu Cloud Image \u74b0\u5883\u69cb\u7bc9\u30ac\u30a4\u30c9"},"content":{"rendered":"\n<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\uff0cQEMU\u3068Ubuntu Cloud Image\u3092\u4f7f\u3063\u3066\uff0c\u8efd\u91cf\u306a\u4eee\u60f3\u74b0\u5883\u3092\u69cb\u7bc9\u3057\uff0cSSH\u63a5\u7d9a\u307e\u3067\u884c\u3046\u624b\u9806\u3092\u307e\u3068\u3081\u307e\u3059\uff0e<\/p>\n<h2>0. \u5fc5\u8981\u306a\u30c4\u30fc\u30eb<\/h2>\n<ul>\n<li>QEMU<\/li>\n<li>cloud-init<\/li>\n<li>genisoimage<\/li>\n<li>Ubuntu Cloud Image\uff08\u4f8b\uff1aubuntu-24.04-server-cloudimg-amd64.img\uff09<\/li>\n<\/ul>\n<p>.IMG\u30d5\u30a1\u30a4\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306f\u4ee5\u4e0b\u306e\u30dc\u30bf\u30f3\u304b\u3089<\/p>\n<p>  <a href=\"https:\/\/cloud-images.ubuntu.com\/\" target=\"_blank\" rel=\"noopener noreferrer\"><br \/>\n    Ubuntu Cloud Image\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<br \/>\n  <\/a><\/p>\n<p>    \u5404\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb<\/p>\n<pre><code>sudo apt update\r\nsudo apt install -y qemu-kvm libvirt-daemon-system libvirt-clients virt-manager bridge-utils\r\n<\/code><\/pre>\n<p>    <a href=\"https:\/\/qiita.com\/shota0616\/items\/aba8a447516d57266c64\">quittta<\/a><\/p>\n<h2>1. Cloud-Init \u7528\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210<\/h2>\n<h3>\u2460\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\u306e\u751f\u6210(SHA-512\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5)<\/h3>\n<pre><code>openssl passwd -6 'yourpassword'\r\n<\/code><\/pre>\n<p>    \u201dyourpassword\u201d\u306b\u5b9f\u969b\u306b\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u3068\u304d\u306b\u4f7f\u7528\u3059\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3059\u308b<\/p>\n<h3>user-data<\/h3>\n<pre><code>#cloud-config\r\nusers:\r\n  - name: username # \u30e6\u30fc\u30b6\u540d\u3092\u767b\u9332\r\n    passwd: \"$6$...\uff08\u751f\u6210\u3057\u305fSHA-512\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5\uff09\"\r\n    lock_passwd: false\r\n    sudo: ['ALL=(ALL) NOPASSWD:ALL']\r\n    shell: \/bin\/bash\r\nssh_pwauth: true\r\n<\/code><\/pre>\n<h3>meta-data<\/h3>\n<pre><code>instance-id: ubuntu\r\nlocal-hostname: ubuntu\r\n<\/code><\/pre>\n<p>    \u4e0a\u8a18\u306e2\u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092.img\u30d5\u30a1\u30a4\u30eb\u3092\u4fdd\u5b58\u3057\u305f\u3068\u3053\u308d\u306b\u4fdd\u5b58\u3059\u308b<\/p>\n<h2>2. ISO\u306e\u4f5c\u6210<\/h2>\n<pre><code>sudo apt install genisoimage # \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\r\ngenisoimage -output seed.iso -volid cidata -joliet -rock user-data meta-data\r\n<\/code><\/pre>\n<h2>3. Ubuntu\u30a4\u30e1\u30fc\u30b8\u306e\u6e96\u5099<\/h2>\n<pre><code>cp ubuntu-24.04-server-cloudimg-amd64.img fresh.img\r\n<\/code><\/pre>\n<h2>4. \u4eee\u60f3\u30de\u30b7\u30f3\u3092\u8d77\u52d5<\/h2>\n<pre><code>qemu-system-x86_64 \\\r\n    -enable-kvm \\\r\n    -m 2048 \\\r\n    -drive file=fresh.img,format=qcow2,if=virtio \\\r\n    -cdrom seed.iso \\\r\n    -netdev user,id=net0,hostfwd=tcp::2222-:22 \\\r\n    -device virtio-net,netdev=net0 \\\r\n    -nographic\r\n<\/code><\/pre>\n<h2>5. \u5225\u30b7\u30a7\u30eb\u304b\u3089SSH\u3067\u30ed\u30b0\u30a4\u30f3<\/h2>\n<pre><code>ssh -p 2222 username@localhost\r\n<\/code><\/pre>\n<p>    \u307e\u305f\u306f<\/p>\n<pre><code>ssh -p 2222 username@(\u30ea\u30e2\u30fc\u30c8\u30de\u30b7\u30f3\u306eIP\u30a2\u30c9\u30ec\u30b9)\r\n<\/code><\/pre>\n<p>\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u805e\u304b\u308c\u308b\u306e\u3067\uff0c <strong>\u30cf\u30c3\u30b7\u30e5\u3092\u4f5c\u308b\u3068\u304d\u306b\u4f7f\u3063\u305f\u30d1\u30b9\u30ef\u30fc\u30c9<\/strong> \u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044<\/p>\n<h2>\u7d50\u679c<\/h2>\n<p>\u7121\u4e8b\u30ed\u30b0\u30a4\u30f3\u3067\u304d\u308c\u3070\uff0c\u6b21\u306e\u3088\u3046\u306a\u753b\u9762\u304c\u8868\u793a\u3055\u308c\u307e\u3059\uff1a<\/p>\n<pre><code>Welcome to Ubuntu XX.XX.X LTS <br>.<br>.<br>.<br>username@ubuntu:~$\r\n<\/code><\/pre>\n<h2>\u304a\u307e\u3051<\/h2>\n<ul>\n<li>user-data\u3092\u4fee\u6b63\u3057\u305f \u7b49\u306e\u969b\u306b\u306f\uff0c2\u306e\u64cd\u4f5c\u304b\u3089\u3084\u308a\u76f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u7d42\u4e86\u3059\u308b\u3068\u304d\u306f\uff0cCtrl+A -&gt; X \u3067\u7d42\u4e86\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u516c\u958b\u9375\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u306b\u3082\u5bfe\u5fdc\u53ef\uff08\u4ee5\u4e0b\u3092user-data\u306b\u8ffd\u52a0\uff09\n<pre><code>ssh_authorized_keys: \u30fb\u30fb(\u516c\u958b\u9375)<\/code><\/pre>\n<\/li>\n<li>GUI\u74b0\u5883\u306e\u5c0e\u5165(\u8a66\u3057\u4e2d)\uff0bVNC\u63a5\u7d9a\u3082\u53ef\u80fd<\/li>\n<\/ul>\n<p>\u3053\u308c\u3067\u30af\u30e9\u30a6\u30c9\u4eee\u60f3\u30de\u30b7\u30f3\u306e\u30ed\u30fc\u30ab\u30eb\u5b9f\u884c\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\ud83c\udf89<\/p>\n<p><\/p>\n<h1>\ud83d\udcd6\ud83d\udd8b\ufe0f 7\/8\u8ffd\u8a18\uff1a\u30a4\u30f3\u30bf\u30fc\u30f3\u5f8c\u5fa9\u7fd2<\/h1>\n<h2>QEMU\uff06KVM \u4eee\u60f3\u30de\u30b7\u30f3<\/h2>\n<p>user-data\u306f\u540c\u3058\u3067\u3059\uff0e\u65b0\u3057\u304f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u7528YAML\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\uff0e<\/p>\n<h2>1. network-config\u3092\u4f5c\u6210<\/h2>\n<pre><code>version: 2\r\nethernets:\r\n  enp1s0:\r\n    dhcp4: false\r\n    optional: false\r\n    addresses: [192.168.122.100\/24] # \u306a\u3093\u3067\u3082\u3044\u3044\u3067\u3059\u304c\uff0c192.168.122.*\u306e\u5f62\u3067\r\n    gateway4: 192.168.122.1 # virt\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\r\n    nameservers:\r\n      addresses: [8.8.8.8, 1.1.1.1]\r\n<\/code><\/pre>\n<h2>2. ISO\u306e\u4f5c\u6210<\/h2>\n<pre><code>sudo apt install cloud-image-utils # \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\r\ncloud-localds -N network-config seed.iso user-data\r\n<\/code><\/pre>\n<h2>3. Ubuntu\u30a4\u30e1\u30fc\u30b8\u306e\u6e96\u5099<\/h2>\n<pre><code>cp noble-server-cloudimg-amd64.img fresh.img\r\n<\/code><\/pre>\n<h2>3. Ubuntu\u30a4\u30e1\u30fc\u30b8\u306e\u5bb9\u91cf\u5909\u66f4<\/h2>\n<p>\u3053\u3053\u3067\u8a2d\u5b9a\u3057\u305f\u5bb9\u91cf\u304c\u76f4\u63a5\u4eee\u60f3\u30de\u30b7\u30f3\u306e\u30c7\u30a3\u30b9\u30af\u5bb9\u91cf\u3068\u306a\u308a\u307e\u3059\uff0e<\/p>\n<pre><code>qemu-img resize -f qcow2 .\/fresh.img 8G\r\n<\/code><\/pre>\n<h2>4. \u4eee\u60f3\u30de\u30b7\u30f3\u3092\u8d77\u52d5<\/h2>\n<p>\u3053\u306e\u4eee\u60f3\u30de\u30b7\u30f3\u306f2\u30b3\u30a2\uff0c\u30e1\u30e2\u30ea3GB\uff08\u6700\u4f4e\u9650\uff09\u3067\u3059\uff0e<\/p>\n<pre><code>virt-install \\\r\n  --import --nographics --noautoconsole --osinfo ubuntu24.04 \\\r\n  --name step001 --memory 3072 --vcpus 2 \\\r\n  --disk path=seed.iso,device=cdrom \\\r\n  --disk path=fresh.img,bus=virtio \\\r\n  --network default,model=virtio --virt-type kvm\r\n<\/code><\/pre>\n<h2>\u2757\u30dd\u30a4\u30f3\u30c8\u2757<\/h2>\n<ul>\n<li>user-data\u3092\u4fee\u6b63\u3057\u305f \u7b49\u306e\u969b\u306b\u306f\uff0c2\u306e\u64cd\u4f5c\u304b\u3089\u3084\u308a\u76f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u4eee\u60f3\u30de\u30b7\u30f3\u3092\u8d77\u52d5\u3059\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306f\/var\/lib\/libvirt\u306e\u4e0b\u306b\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u7d42\u4e86\u3059\u308b\u3068\u304d\u306f\uff0cCtrl + ] \u3067\u7d42\u4e86\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u516c\u958b\u9375\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u306b\u3082\u5bfe\u5fdc\u53ef\uff08\u4ee5\u4e0b\u3092user-data\u306b\u8ffd\u52a0\uff09\n<pre><code>ssh_authorized_keys: \u30fb\u30fb(\u516c\u958b\u9375)<\/code><\/pre>\n<\/li>\n<li>\u3053\u3053\u3067\u306fUbuntu\u74b0\u5883\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\uff0c\u4ed6\u306eOS\u306e\u30a4\u30e1\u30fc\u30b8\u30d5\u30a1\u30a4\u30eb\u304c\u3042\u308c\u3070\u305d\u308c\u3067\u3082\u8d77\u52d5\u3067\u304d\u307e\u3059\u3002<br \/>\u516c\u5f0f\u3067\u914d\u5e03\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u3068\u3055\u308c\u3066\u3044\u306a\u3044\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u306e\u3067\uff0c\u8a73\u3057\u304f\u306f\u8abf\u3079\u3066<\/li>\n<\/ul>\n<p>\u30a4\u30e1\u30fc\u30b8\u30d5\u30a1\u30a4\u30eb(.img\uff0c.qcow2\uff0c.raw)\u304c\u914d\u5e03\u3055\u308c\u3066\u3044\u308bOS(\u4e00\u90e8)<\/p>\n<ul>\n<li>Ubuntu:\u3000<a href=\"https:\/\/cloud-images.ubuntu.com\/noble\/current\/\" target=\"_blank\"><br \/>https:\/\/cloud-images.ubuntu.com\/noble\/current<\/a><\/li>\n<li>Debian:\u3000<a href=\"https:\/\/cloud.debian.org\/images\/cloud\/OpenStack\/\" target=\"_blank\"><br \/>https:\/\/cloud.debian.org\/images\/cloud\/OpenStack\/<\/a><\/li>\n<li>Fedora:\u3000<a href=\"https:\/\/ftp.riken.jp\/Linux\/fedora\/releases\/42\/Cloud\/x86_64\/images\/\" target=\"_blank\"><br \/>https:\/\/ftp.riken.jp\/Linux\/fedora\/releases\/42\/Cloud\/x86_64\/images\/<\/a><\/li>\n<li>openSUSE:\u3000<a href=\"https:\/\/download.opensuse.org\/repositories\/Cloud:\/Images:\/\" target=\"_blank\"><br \/>https:\/\/download.opensuse.org\/repositories\/Cloud:\/Images:\/<\/a><\/li>\n<li>Alpine:\u3000<a href=\"https:\/\/dl-cdn.alpinelinux.org\/alpine\/v3.22\/releases\/cloud\/\" target=\"_blank\"><br \/>https:\/\/dl-cdn.alpinelinux.org\/alpine\/v3.22\/releases\/cloud\/<\/a><\/li>\n<li>FreeBSD:\u3000<a href=\"https:\/\/download.freebsd.org\/releases\/VM-IMAGES\/14.3-RELEASE\/amd64\/Latest\/\" target=\"_blank\"><br \/>https:\/\/download.freebsd.org\/releases\/VM-IMAGES\/14.3-RELEASE\/amd64\/Latest\/<\/a><\/li>\n<\/ul>\n<p>\u914d\u5e03\u3055\u308c\u3066\u3044\u306a\u3044OS<\/p>\n<ul>\n<li>Arch Linux<\/li>\n<li>Rocky Linux<\/li>\n<li>CentOS Stream<\/li>\n<li>Gentoo<\/li>\n<li>Slackware<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u69cb\u7bc9\u306e\u6d41\u308c\u3092\u307e\u3068\u3081\u3066\u304a\u304d\u307e\u3059\uff0e<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","sns_share_botton_hide":"","vkExUnit_sns_title":"","_vk_print_noindex":"","sitemap_hide":"","_veu_custom_css":"","veu_display_promotion_alert":"common","vkexunit_cta_each_option":"","_lightning_design_setting":{"layout":"default"},"footnotes":""},"categories":[6],"tags":[20,19,21],"class_list":["post-326","post","type-post","status-publish","format-standard","hentry","category-6","tag-kvm","tag-qemu","tag-21"],"veu_head_title_object":{"title":"","add_site_title":""},"_links":{"self":[{"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/posts\/326","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/comments?post=326"}],"version-history":[{"count":11,"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/posts\/326\/revisions"}],"predecessor-version":[{"id":358,"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/posts\/326\/revisions\/358"}],"wp:attachment":[{"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/media?parent=326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/categories?post=326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sgt.tailc1292c.ts.net\/wordpress\/wp-json\/wp\/v2\/tags?post=326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}