由于没有电视机和hdmi显示器，因此手动添加自动启动sshd和net.eth0并配置网络，分区前先将其他版本img镜像dd一遍，再重新分区，保留第一分区，修改第二分区，也可添加第三分区用于下载等。
# Create the File Systems
root # mkfs.vfat -F 16 /dev/sdb1
root # mkswap /dev/sdb2 //*可以忽略不添加swap*//
root # mkfs.ext4 /dev/sdb3
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Mounting the partitions
root # mkdir /mnt/gentoo
root # mount /dev/sdb3 /mnt/gentoo
root # mkdir /mnt/gentoo/boot/
root # mount /dev/sdb1 /mnt/gentoo/boot
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Extract Stage 3 Image [http://ftp.df.lth.se/]
root # cd /tmp/
root # wget ftp://de-mirror.org/gentoo/releases/arm/autobuilds/current-stage3-armv6j_hardfp/stage3-armv6j_hardfp-*.tar.bz2
root # tar xfpj stage3-armv6j_hardfp-*.tar.bz2 -C /mnt/gentoo/
----------------------------------------
Install Portage
root # wget http://distfiles.gentoo.org/snapshots/portage-latest.tar.bz2 ;
root # tar xjf portage-latest.tar.bz2 -C /mnt/gentoo/usr
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Install kernel and modules
root # cd /tmp/
root # git clone --depth 1 git://github.com/raspberrypi/firmware/
root # cd firmware/boot
root # cp * /mnt/gentoo/boot/
root # cp -r ../modules /mnt/gentoo/lib/
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Configure the system
========================================
Edit fstab
root # nano /mnt/gentoo/etc/fstab
/dev/mmcblk0p1 /boot auto noauto,noatime 1 2
/dev/mmcblk0p3 / ext4 noatime 0 1
/dev/mmcblk0p2 none swap sw 0 0
----------------------------------------
Set boot options
root # nano /mnt/gentoo/boot/cmdline.txt添加
root=/dev/mmcblk0p3 rootdelay=10
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Configure timezone
root # cp /mnt/gentoo/usr/share/zoneinfo/Asia/Shanghai /mnt/gentoo/etc/localtime
(Next set the timezone)
root # echo "Asia/Shanghai" > /mnt/gentoo/etc/timezone
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Edit root password
root # nano /mnt/gentoo/etc/shadow
root::10770:0::::: //*复制现有亦可*//
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cd etc/init.d
ln -s net.lo net.eth0
nano etc/conf.d/net添加
config_eth0="192.168.0.2 netmask 255.255.255.0"
routes_eth0="default via 192.168.0.1"
dns_servers_eth0="192.168.0.1 8.8.8.8"
----------------------------------------
Add to runlevels = rc-update add command
cd etc/runlevels/boot
ln -s ../../init.d/net.eth0 net.eth0
cd etc/runlevels/default
ln -s ../../init.d/sshd sshd
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nano etc/ssh/sshd_config确保:
PermitRootLogin yes
PasswordAuthentication yes
PermitEmptyPasswords no //*视具体情况*//
#UsePAM yes
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Unmount the SD card.
root # umount /mnt/gentoo/boot
root # umount /mnt/gentoo
=========================
root # reboot重启
=========================
Select profile
List the available profiles.
root # eselect profile list
Select the desired profile, for example 25
root # eselect profile set 25
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Enable ntp-client
emerge ntp
rc-update add ntp-client default
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emerge --sync 完成