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FreeBSDAdvent Calendar 2024

Day 18
@je3kmz

bhyve を bmd でキメる✨

Last updated at Posted at 2025-03-05

個人レヴェルでもそこそこ使えるように成ってきた bhyve を、現役を退いたワークマシンを用いて SDG'S の観点から再利用する為の実験をしてみた👏
google 先生で bhyve と尋ねると sysutils/vm-bhyve の使用例がてんこ盛りw
という訳で、内藤さん作の sysutils/bmd で環境構築からのザックリした手順書を書いてみた(うぇい✌)

対象者

daemon 使いとして自負の有る人
FreeBSD が大好きな人

環境(古)

今回の記事で使用した実環境の仕様か以下の通り

dmesg の抜粋
FreeBSD 14.2-RELEASE-p1 GENERIC amd64
CPU: Intel(R) Xeon(R) CPU E31225 @ 3.10GHz (3093.06-MHz K8-class CPU)
real memory  = 21474836480 (20480 MB)
em0: <Intel(R) Gigabit CT 82574L> port 0x4000-0x401f mem 0xfbee0000-0xfbefffff,0xfbed0000-0xfbed3fff irq 16 at device 0.0 on pci4
em1: <Intel(R) Gigabit CT 82574L> port 0x5000-0x501f mem 0xfbfe0000-0xfbffffff,0xfbfd0000-0xfbfd3fff irq 17 at device 0.0 on pci5
ada0: <VB0250EAVER HPG7> ATA8-ACS SATA 2.x device
ada1: <VB0250EAVER HPG7> ATA8-ACS SATA 2.x device
ada2: <VB0250EAVER HPG7> ATA8-ACS SATA 2.x device
ada3: <VB0250EAVER HPG9> ATA8-ACS SATA 2.x device
zfs pool 構成
pool status
  pool: zroot
 state: ONLINE
config:

	NAME	STATE     READ WRITE CKSUM
	zroot       ONLINE       0     0     0
	  raidz2-0  ONLINE       0     0     0
	    ada0p3  ONLINE       0     0     0
	    ada1p3  ONLINE       0     0     0
	    ada2p3  ONLINE       0     0     0
	    ada3p3  ONLINE       0     0     0

em0 には管理用としての IPv6 アドレスが割り振ってあり、bhyve の通信用として em1 を使う前提

/etc/rc.conf.local
ifconfig_em0_ipv6="inet6 accept_rtadv"
ifconfig_em1_ipv6="inet6 -ifdisabled up"

インスコ

bmd をインスコ
pkg install bmd

仮想環境の置き場所作るよ

zfs create -V で zfs 上にブロックデバイスを作ってみる

とりま 20G 程度の箱を用意
zfs create zroot/bhyve
zfs create -V 20g zroot/bhyve/13-i386
zfs create -V 20g zroot/bhyve/13-amd64
zfs create -V 20g zroot/bhyve/14-i386
zfs create -V 20g zroot/bhyve/14-amd64
zfs create -V 20g zroot/bhyve/15-i386
zfs create -V 20g zroot/bhyve/15-amd64

以下のデバイスファイルが出来ていれば桶

/dev/zvol/zroot/bhyve/13-amd64
/dev/zvol/zroot/bhyve/13-i386
/dev/zvol/zroot/bhyve/14-amd64
/dev/zvol/zroot/bhyve/14-i386
/dev/zvol/zroot/bhyve/15-amd64
/dev/zvol/zroot/bhyve/15-i386

インスコ用 iso ファイルを置く

CHECKSUM.SHA256 とか CHECKSUM.SHA512 の確認はご自由に→野良イメージ置き場からの取得は非推奨✌
手元に有る人は適宜、実環境から読み出せる状態にする
ex. nfs で共有するとか cp するとか...

置き場の確保

置き場所は任意でおｋ
zfs create -omountpoint=/iso zroot/iso
2025/3/5現在の iso イメージ在処
cd /iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/13.4/CHECKSUM.SHA256-FreeBSD-13.4-RELEASE-amd64
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/13.4/CHECKSUM.SHA512-FreeBSD-13.4-RELEASE-amd64
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/13.4/FreeBSD-13.4-RELEASE-amd64-bootonly.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/13.4/FreeBSD-13.4-RELEASE-amd64-disc1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/13.4/FreeBSD-13.4-RELEASE-amd64-dvd1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/14.2/CHECKSUM.SHA256-FreeBSD-14.2-RELEASE-amd64
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/14.2/CHECKSUM.SHA512-FreeBSD-14.2-RELEASE-amd64
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/14.2/FreeBSD-14.2-RELEASE-amd64-bootonly.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/14.2/FreeBSD-14.2-RELEASE-amd64-disc1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/amd64/amd64/ISO-IMAGES/14.2/FreeBSD-14.2-RELEASE-amd64-dvd1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/snapshots/amd64/amd64/ISO-IMAGES/15.0/CHECKSUM.SHA256-FreeBSD-15.0-CURRENT-amd64-20250227-8a85584785e3-275712
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/snapshots/amd64/amd64/ISO-IMAGES/15.0/CHECKSUM.SHA512-FreeBSD-15.0-CURRENT-amd64-20250227-8a85584785e3-275712
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/snapshots/amd64/amd64/ISO-IMAGES/15.0/FreeBSD-15.0-CURRENT-amd64-20250227-8a85584785e3-275712-disc1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/13.4/CHECKSUM.SHA256-FreeBSD-13.4-RELEASE-i386
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/13.4/CHECKSUM.SHA512-FreeBSD-13.4-RELEASE-i386
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/13.4/FreeBSD-13.4-RELEASE-i386-bootonly.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/13.4/FreeBSD-13.4-RELEASE-i386-disc1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/13.4/FreeBSD-13.4-RELEASE-i386-dvd1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/14.2/CHECKSUM.SHA256-FreeBSD-14.2-RELEASE-i386
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/14.2/CHECKSUM.SHA512-FreeBSD-14.2-RELEASE-i386
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/14.2/FreeBSD-14.2-RELEASE-i386-bootonly.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/14.2/FreeBSD-14.2-RELEASE-i386-disc1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/releases/i386/i386/ISO-IMAGES/14.2/FreeBSD-14.2-RELEASE-i386-dvd1.iso
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/snapshots/i386/i386/ISO-IMAGES/15.0/CHECKSUM.SHA256-FreeBSD-15.0-CURRENT-i386-20250227-8a85584785e3-275712
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/snapshots/i386/i386/ISO-IMAGES/15.0/CHECKSUM.SHA512-FreeBSD-15.0-CURRENT-i386-20250227-8a85584785e3-275712
fetch ftp://ftp.jp.freebsd.org/pub/FreeBSD/snapshots/i386/i386/ISO-IMAGES/15.0/FreeBSD-15.0-CURRENT-i386-20250227-8a85584785e3-275712-disc1.iso

今回の選抜隊 iso イメージ群1 

/iso/FreeBSD-13.4-RELEASE-amd64-bootonly.iso
/iso/FreeBSD-13.4-RELEASE-i386-bootonly.iso
/iso/FreeBSD-14.2-RELEASE-amd64-bootonly.iso
/iso/FreeBSD-14.2-RELEASE-i386-bootonly.iso
/iso/FreeBSD-15.0-CURRENT-amd64-20250227-8a85584785e3-275712-disc1.iso
/iso/FreeBSD-15.0-CURRENT-i386-20250227-8a85584785e3-275712-disc1.iso

おまじない😋

ifconfig bridge0 create addm em1 up

再起動で消えない為にも

/etc/rc.conf.local
cloned_interfaces="bridge0"
ifconfig_bridge0="addm em1"

daemon 君の起こし方

このワンライナーで /etc/rc.conf に bmd_enable="YES" が追記されるん最近まで気づかなかった
service bmd enable

一旦 boot をしないように config を書く

/usr/local/etc/bmd.conf
global {
	cmd_socket_mode = 0660;
	$imgpath = /dev/zvol/zroot/bhyve;
	$isopath = /iso;
}

template default_disk {
	disk = ${imgpath}/${NAME};
}

template graphics {
	graphics = yes;
	graphics_port = $((5900 + ${ID}));
	xhci_mouse = yes;
}

template serial {
	comport = auto;
}

template internet {
	network = bridge0;
}

template grub_inspect {
	loader = grub;
	loadcmd = auto;
	installcmd = auto;
}

vm 13-amd64 {
#       boot = yes;
	ncpu = 1;
	memory = 2G;
	iso = ${isopath}/FreeBSD-13.4-RELEASE-amd64-bootonly.iso;
	loader = uefi;
	.apply default_disk, serial, internet, graphics;
}

vm 13-i386 {
#       boot = yes;
	ncpu = 1;
	memory = 2G;
	iso = ${isopath}/FreeBSD-13.4-RELEASE-i386-bootonly.iso;
	loader = bhyveload;
	.apply default_disk, serial, internet, graphics;
}

vm 14-amd64 {
#       boot = yes;
	ncpu = 1;
	memory = 2G;
	iso = ${isopath}/FreeBSD-14.2-RELEASE-amd64-bootonly.iso;
	loader = uefi;
	.apply default_disk, serial, internet, graphics;
}

vm 14-i386 {
#       boot = yes;
	ncpu = 1;
	memory = 2G;
	iso = ${isopath}/FreeBSD-14.2-RELEASE-i386-bootonly.iso;
	loader = bhyveload;
	.apply default_disk, serial, internet, graphics;
}

vm 15-amd64 {
#       boot = yes;
	ncpu = 1;
	memory = 2G;
	iso = ${isopath}/FreeBSD-15.0-CURRENT-amd64-20250227-8a85584785e3-275712-disc1.iso;
	loader = uefi;
	.apply default_disk, serial, internet, graphics;
	graphics_res = 1280x720;
}

vm 15-i386 {
#       boot = yes;
	ncpu = 1;
	memory = 2G;
	iso = ${isopath}/FreeBSD-15.0-CURRENT-i386-20250227-8a85584785e3-275712-disc1.iso;
	loader = bhyveload;
	.apply default_disk, serial, internet, graphics;
	graphics_res = 1280x720;
}
#.include "bmd.d/*";

bmd 実行👏

service bmd start

ここで tap? の仮想 nic が環境分(今回の例だと6つ)出て来ていれば桶

ifconfig | grep "tap[0-9]:"
tap0: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
tap1: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
tap2: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
tap3: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
tap4: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500
tap5: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500

仮想環境に OS をインスコ1 

bmdctl install -c 13-amd64
bmdctl install -c 13-i386
bmdctl install -c 14-amd64
bmdctl install -c 14-i386
bmdctl install -c 15-amd64
bmdctl install -c 15-i386

インスコが終わった直後は仮想環境は停止している

確認方法
bmdctl list

id                name ncpu memory    loader       state       owner
 --- ------------------- ---- ------ --------- -----------  ----------
   0            13-amd64    1     2G      uefi        STOP        root
   1             13-i386    1     2G bhyveload        STOP        root
   2            14-amd64    1     2G      uefi        STOP        root
   3             14-i386    1     2G bhyveload        STOP        root
   4            15-amd64    1     2G      uefi        STOP        root
   5             15-i386    1     2G bhyveload        STOP        root

インスコが整えば自動起動で再起動もスムーズに✌

/usr/local/etc/bmd.conf のファイルでコメントアウトしていた boot = yes; 行のコメントを bmd に認識してもらいましょ

service bmd restart

裏で daemon 君が淡々と設定ファイルに従って仮想環境を構築してくれる筈🍡

活動中👹

bmdctl list

id                name ncpu memory    loader       state       owner
 --- ------------------- ---- ------ --------- -----------  ----------
   0            13-amd64    1     2G      uefi         RUN        root
   1             13-i386    1     2G bhyveload         RUN        root
   2            14-amd64    1     2G      uefi         RUN        root
   3             14-i386    1     2G bhyveload         RUN        root
   4            15-amd64    1     2G      uefi         RUN        root
   5             15-i386    1     2G bhyveload         RUN        root

OS のインスコが終わったら、個別設定をする

インスコの時点でユーザの追加とか sshd を enable してたら、外から普通に設定すればいいが、ズボラ噛まして後から設定したい我儘な daemon 使いの人はコンソールを実環境から扱う

bmdctl console 13-amd64
bmdctl console 13-i386
bmdctl console 14-amd64
bmdctl console 14-i386
bmdctl console 15-amd64
bmdctl console 15-i386

各々コマンド入力後は cu -l でシリアルコンソール接続と同じ状況になっているので、

root⏎
パスワード⏎

とタイプして root でログイン出来る(筈)

logout 後に実環境へ戻りたいよね

cu -l の脱出コマンドで華麗に👋出来る

~ Ctrl+D

bmd.conf がミスってたら...

/var/log/daemon.log 見ませう✌

  1. 執筆現在ではkernelの読み込み時にpanicしてインスコ出来ない🤣 ↩ ↩2

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