环境准备
启动镜像
可以在Gentoo官网下载Minimal Installation CDhttps://www.gentoo.org/downloads/
虚拟磁盘
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| mkdir -p /home/kvm/dev
qemu-img create -f qcow2 -o size=32G,preallocation=metadata /home/kvm/dev/dev.qcow2
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用下载的LiveCD启动虚拟机
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| virt-install
--name dev
--ram 4096
--vcpus=2
--disk path=/home/kvm/dev/dev.qcow2,format=qcow2,size=32,bus=virtio
--cdrom /home/users/test/install-amd64-minimal-20200419T214502Z.iso
--network bridge=brlan
--noautoconsole
--graphics vnc,listen=0.0.0.0,port=5910,password=11223311
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VNC连接
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| 配置IP, 可连接公网
配置root密码
开启sshd服务后改为ssh连接(方便)
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安装
硬盘分区、格式化、挂载
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| fdisk
mke2fs /dev/vda1 -t ext4 -L /
mount /dev/vda1 /mnt/gentoo/
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DNS配置
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| echo "nameserver 114.114.114.114" >> /etc/resolv.conf
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stage3
官网下载https://www.gentoo.org/downloads/或把预下载好的scp到/mnt/gentoo目录
不要太旧, 否则后面portage更新后, 会被折磨死
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| cd /mnt/gentoo
tar xpvf stage3-*.tar.xz --xattrs-include='*.*' --numeric-owner
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建议portage更新源换为163或阿里
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| mkdir /mnt/gentoo/etc/portage/repos.conf
cp /mnt/gentoo/usr/share/portage/config/repos.conf /mnt/gentoo/etc/portage/repos.conf/gentoo.conf
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/mnt/gentoo/etc/portage/repos.conf
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| [DEFAULT]
main-repo = gentoo
[gentoo]
location = /var/db/repos/gentoo
sync-type = websync
sync-uri = https://mirrors.163.com/gentoo-portage/
auto-sync = no
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建议下载源换为163或阿里
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| mirrorselect -i -o >> /mnt/gentoo/etc/portage/make.conf
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chroot
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| cp /etc/resolv.conf /mnt/gentoo/etc/resolv.conf
mount --bind /sys /mnt/gentoo/sys
mount --bind /dev /mnt/gentoo/dev
mount -t proc proc /mnt/gentoo/proc
chroot /mnt/gentoo/ /bin/bash
export PS1="(chroot) ${PS1}"
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更新portage
按需选择profile
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| (chroot) livecd ~ # eselect profile list
Available profile symlink targets:
[1] default/linux/amd64/17.1 (stable) *
[2] default/linux/amd64/17.1/selinux (stable)
[3] default/linux/amd64/17.1/hardened (stable)
[4] default/linux/amd64/17.1/hardened/selinux (stable)
... ...
(chroot) livecd ~ # eselect profile set NUMBER
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更新系统
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| emerge --ask --verbose --update --deep --newuse @world
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先安装vim, 方便编辑（非必须）
设置时区（非必须）
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| echo "Asia/Shanghai" > /etc/timezone
emerge --config sys-libs/timezone-data
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配置内核
下载内核
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| emerge --ask sys-kernel/gentoo-sources
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安装pciutils（非必须）
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| emerge --ask sys-apps/pciutils
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按需配置、编译、安装
参考 https://wiki.gentoo.org/wiki/QEMU/Linux_guest
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| cd /usr/src/linux
make defconfig
make kvm_guest.config
make -j`nproc` && make modules_install && make install
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/etc/fstab配置
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| LABEL=/ / ext4 noatime 0 1
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网络配置
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| emerge -av net-misc/netifrc
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/etc/conf.d/net
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| config_eth0="192.168.0.2 netmask 255.255.255.0 brd 192.168.0.255"
routes_eth0="default via 192.168.0.1"
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eth0 开机启动
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| ln -s /etc/init.d/net.lo /etc/init.d/net.eth0
rc-update add net.eth0 default
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配置root密码
sshd开机启动
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| rc-update add sshd default
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一些工具安装
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| emerge -av sys-process/cronie
rc-update add cronie default
emerge -av app-admin/rsyslog
rc-update add rsyslog default
emerge -av sys-apps/mlocate
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Grub2（bootloader）安装
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| emerge -av sys-boot/grub:2
grub-install /dev/vda
grub-mkconfig -o /boot/grub/grub.cfg
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测试
退出chroot, 重启测试
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| virsh destroy|start dev2
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排错
挂载Live CD启动
/etc/libvirt/qemu/dev2.xml
cdrom 指定iso
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| <disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/home/users/test/install-amd64-minimal-20200419T214502Z.iso'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' unit='0'/>
</disk>
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优先cdrom 启动
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| <os>
<type arch='x86_64' machine='pc-q35-5.1'>hvm</type>
<boot dev='cdrom'/>
<boot dev='hd'/>
</os>
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网卡命名不是eth0
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| ln -s /dev/null 80-net-name-slot.rules
ln -s /dev/null 80-net-setup-link.rules
ln -s /dev/null 80-net-setup-slot.rules
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