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第 18.5 节 树莓派与 Linux 兼容层

Arch Linux 兼容层

# fetch https://book.bsdcn.org/archrpi.sh
# sh archrpi.sh

脚本内容如下：

/bin/sh
rootdir=/compat/arch
url="https://mirrors.jlu.edu.cn/archlinuxarm/os/ArchLinuxARM-rpi-aarch64-latest.tar.gz"


echo "begin to install archlinux ..."
echo "check modules ..."


# check linux module
if [ "$(sysrc -n linux_enable)" = "NO" ]; then
        echo "linux module should be loaded. Continue?(Y|n)"
        read answer
        case $answer in
                [Nn][Oo]|[Nn])
                        echo "linux module not loaded"
                        exit 1
                        ;;
                [Yy][Ee][Ss]|[Yy]|"")
                        sysrc linux_enable=YES
                        ;;
        esac
fi
echo "start linux"
service linux start


# check dbus
if ! /usr/bin/which -s dbus-daemon;then
        echo "dbus-daemon not found. install it [Y|n]"
        read  answer
        case $answer in
            [Nn][Oo]|[Nn])
                echo "dbus not installed"
                exit 2
                ;;
            [Yy][Ee][Ss]|[Yy]|"")
                pkg install -y dbus
                ;;
        esac
    fi


if [ "$(sysrc -n dbus_enable)" != "YES" ]; then
        echo "dbus should be enable. Continue?(Y|n)"
        read answer
        case $answer in
            [Nn][Oo]|[Nn])
                        echo "dbus not running"
                        exit 2
                        ;;
            [Yy][Ee][Ss]|[Yy]|"")
                        sysrc dbus_enable=YES
                        ;;
        esac
fi
echo "start dbus"
service dbus start


echo "now we will bootstrap archlinux"


fetch ${url}
mkdir -p ${rootdir}
tar xpvf ArchLinuxARM-rpi-aarch64-latest.tar.gz -C ${rootdir} --numeric-owner
rm ArchLinuxARM-rpi-aarch64-latest.tar.gz




if [ ! "$(sysrc -f /boot/loader.conf -qn nullfs_load)" = "YES" ]; then
        echo "nullfs_load should load. continue? (Y|n)"
        read answer
        case $answer in
            [Nn][Oo]|[Nn])
                echo "nullfs not load"
    exit 3
                ;;
            [Yy][Ee][Ss]|[Yy]|"")
                sysrc -f /boot/loader.conf nullfs_load=yes
                ;;
        esac
fi


if ! kldstat -n nullfs >/dev/null 2>&1;then
        echo "load nullfs module"
        kldload -v nullfs
fi


echo "mount some fs for linux"
echo "devfs ${rootdir}/dev devfs rw,late 0 0" >> /etc/fstab
echo "tmpfs ${rootdir}/dev/shm tmpfs rw,late,size=1g,mode=1777 0 0" >> /etc/fstab
echo "fdescfs ${rootdir}/dev/fd fdescfs rw,late,linrdlnk 0 0" >> /etc/fstab
echo "linprocfs ${rootdir}/proc linprocfs rw,late 0 0" >> /etc/fstab
echo "linsysfs ${rootdir}/sys linsysfs rw,late 0 0" >> /etc/fstab
echo "/tmp ${rootdir}/tmp nullfs rw,late 0 0" >> /etc/fstab
#echo "/home ${rootdir}/home nullfs rw,late 0 0" >> /etc/fstab
mount -al


echo "for archlinux,we should change 'compat.linux.osrelease'. continue? (Y|n)"
read answer
case $answer in
  [Nn][Oo]|[Nn])
    echo "close to success"
    exit 4
    ;;
  [Yy][Ee][Ss]|[Yy]|"")
    echo "compat.linux.osrelease=6.1.45" >> /etc/sysctl.conf
    sysctl compat.linux.osrelease=6.1.45
                ;;
esac
echo "complete!"
echo "to use: chroot ${rootdir} /bin/bash"
echo ""
echo "but for easy use ,i can do some init config"
echo "if agree:"
echo "   i set resolv.conf to ali dns"
echo "   init pacman keyring"
echo "   use tsinghua mirror"
echo "continue?[Y|n]"
read answer
case $answer in
  [Nn][Oo]|[Nn])
    echo "set your archlinux by yourself.bye!"
    exit 0
    ;;
  [Yy][Ee][Ss]|[Yy]|"")
     rm  ${rootdir}/etc/resolv.conf
    echo "nameserver 223.5.5.5" >> ${rootdir}/etc/resolv.conf
    chroot ${rootdir} /bin/bash -c "pacman-key --init"
    chroot ${rootdir} /bin/bash -c "pacman-key --populate archlinuxarm"




    echo 'Server = https://mirrors.ustc.edu.cn/archlinuxarm/$arch/$repo' > ${rootdir}/etc/pacman.d/mirrorlist
      echo '[archlinuxcn]' >> ${rootdir}/etc/pacman.conf
      echo 'Server = https://mirror.sjtu.edu.cn/archlinux-cn/aarch64' >>  ${rootdir}/etc/pacman.conf
    echo "Refresh sources and systems"
    chroot ${rootdir} /bin/bash -c "pacman -Syyu --noconfirm"
    echo "Refresh key"
        chroot ${rootdir} /bin/bash -c "pacman -S --noconfirm archlinuxcn-keyring"
    echo "Install yay"
    chroot ${rootdir} /bin/bash -c "pacman -S --noconfirm yay base base-devel nano yay wqy-zenhei"
    echo "Create user"
    chroot ${rootdir} /bin/bash -c "useradd -G wheel -m test"
    echo "Now modify the sudo configuration"
    echo '%wheel ALL=(ALL) ALL' >> ${rootdir}/etc/sudoers
    echo '%sudo ALL=(ALL:ALL) ALL' >> ${rootdir}/etc/sudoers
    echo "change fakeroot"
    chroot ${rootdir} /bin/bash -c "pacman -S --noconfirm fakeroot-tcp"
    echo "Make localised settings"
    echo 'zh_CN.UTF-8 UTF-8' >> ${rootdir}/etc/locale.gen
    chroot ${rootdir} /bin/bash -c "locale-gen"
    echo "all done."
                ;;
esac
echo "Now you can run '#chroot /compat/arch/ /bin/bash' Into ArchLinux"

参考资料