arhclinux 下开机按照顺序挂载磁盘和启动docker以及kvm

# 先禁止docker和kvm(libvirtd)开机自动

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systemctl disable docker
systemctl disable libvirtd

# 自定义一个开机服务rc-local

# rc-local.servic

nano /usr/lib/systemd/system/rc-local.service

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[Unit]
Description="/etc/rc.local Compatibility"
 
[Service]
Type=forking
ExecStart=/etc/rc.local start
TimeoutSec=0
StandardInput=tty
RemainAfterExit=yes
SysVStartPriority=99
 
[Install]
WantedBy=multi-user.target

# rc.local

nano /etc/rc.local 查找/etc/rc.local.d/下的脚本并执行

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#!/bin/sh
# /etc/rc.local
if test -d /etc/rc.local.d; then
    for rcscript in /etc/rc.local.d/*.sh; do
        test -r "${rcscript}" && sh ${rcscript}
    done
    unset rcscript
fi

# 权限目录和开机自启

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chmod a+x /etc/rc.local
mkdir /etc/rc.local.d
systemctl enable rc-local

# 创建自动脚本

sudo nano /etc/rc.local.d/auto-mount-and-start-aio.sh

内容如下

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# 自动挂载

#mkdir-p  mnt/nvme   mnt/efi  mnt/exfat

mount /dev/nvme0n1p6 /home/yanhui/mnt/exfat
mount /dev/nvme0n1p5 /home/yanhui/mnt/nvme
mount /dev/nvme0n1p1 /home/yanhui/mnt/efi

# docker 和kvm的迁移

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systemctl stop docker
rsync -avzP /var/lib/docker  /home/yanhui/mnt/nvme
mv /var/lib/docker  /var/lib/docker.bak && ln -s /home/yanhui/mnt/nvme/docker /var/lib/
# 完成后 rm -rf /var/lib/docker.bak

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systemctl stop libvirtd
rsync -avzP /var/lib/libvirt  /home/yanhui/mnt/nvme
mv /var/lib/libvirt  /var/lib/libvirt.bak && ln -s /home/yanhui/mnt/nvme/libvirt /var/lib/
# 完成后 rm -rf /var/lib/libvirt.bak

# 修改docker和libvirtd服务启动顺序

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cd /usr/lib/systemd/system/

分别编辑 sudo nano libvirtd.service 和 sudo nano docker.service 在[Unit] 段增加一行

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After=rc-local.service

这行是为了让docker和libvirtd 在rc-local这个服务之后启动，方便我们在 rc-local 内先挂载好磁盘最后这两个服务设置为自动启动

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sudo systemctl enable libvirtd
sudo systemctl enable docker
sudo systemctl start docker
sudo systemctl start libvirtd

# 另一个文章

https://dev.leiyanhui.com/arch/auto–dock-kvm/