yangxuan8282 · April 12, 2022 09:57
diff --git a/gen-alpine.sh b/gen-alpine.sh
 #!/bin/sh
 #genetate alpine edge x86/x86_64 image: chmod +x gen-alpine.sh && sudo ./gen-alpine.sh
 #depends: apk-tools-static, vim(xxd)

 set -x

 die() {
 	printf '\033[1;31mERROR:\033[0m %s\n' "$@" >&2  # bold red
 	exit 1
 }

 if [ "$(id -u)" -ne 0 ]; then
 	die 'This script must be run as root!'
 fi

 which xxd >/dev/null || exit 

 BUILD_DATE="$(date +%Y-%m-%d)"

 usage() {
 	cat <<EOF
 	Usage: gen-alpine.sh [options]
 	Valid options are:
 		-a ARCH                 Options: x86, x86_64.
 		-m ALPINE_MIRROR        URI of the mirror to fetch packages from
 		                        (default is https://mirrors.tuna.tsinghua.edu.cn/alpine).
 		-o OUTPUT_IMG           Output img file
 		                        (default is BUILD_DATE-alpine-ARCH.img).
 		-h                      Show this help message and exit.
 EOF
 }

 while getopts 'a:m:o:h' OPTION; do
 	case "$OPTION" in
 		a) ARCH="$OPTARG";;
 		m) ALPINE_MIRROR="$OPTARG";;
 		o) OUTPUT="$OPTARG";;
 		h) usage; exit 0;;
 	esac
 done 

 : ${ARCH:="$(uname -m)"}
 : ${ALPINE_MIRROR:="https://mirrors.tuna.tsinghua.edu.cn/alpine"}
 : ${OUTPUT_IMG:="${BUILD_DATE}-alpine-${ARCH}.img"}

 case $ARCH in
 	 x86| i[3456]86 ) ARCH=x86 GRUB_EFI_TARGET=i386-efi;; 
 	   x64 | x86_64 ) ARCH=X86_64 GRUB_EFI_TARGET=x86_64-efi;; 
 	               *) die 'not supported arch';;
 esac

 #=======================  F u n c t i o n s  =======================#

 gen_image() {
 	fallocate -l $(( 700 * 1024 *1024 )) "$OUTPUT_IMG"
 cat > fdisk.cmd <<-EOF
 	o
 	n
 	p
 	1
 	
 	+100MB
 	t
 	c
 	a
 	n
 	p
 	2
 	
 	
 	w
 EOF
 fdisk "$OUTPUT_IMG" < fdisk.cmd
 rm -f fdisk.cmd
 }

 do_format() {
 	mkfs.fat -F32 "$BOOT_DEV"
 	mkfs.ext4 "$ROOT_DEV"
 	mkdir -p mnt
 	mount "$ROOT_DEV" mnt
 	mkdir -p mnt/boot
 	mount "$BOOT_DEV" mnt/boot
 }

 setup_mirrors() {
 	mv mnt/etc/apk/repositories mnt/etc/apk/repositories.old

 	for ALPINE_REPOS in main community testing ; do
 		echo ${ALPINE_MIRROR}/edge/${ALPINE_REPOS} >> mnt/etc/apk/repositories
 	done
 }

 do_apkstrap() {
 	apk.static -X ${ALPINE_MIRROR}/edge/main -U --allow-untrusted --root mnt --initdb add alpine-base
 }

 install_kernel() {
 	apk add linux-vanilla
 }

 gen_grub_cfg() {
 	cat > /boot/grub/grub.cfg <<- EOF
 	set timeout=2
 	insmod all_video
 	menuentry "Alpine Linux" {
 	    search --no-floppy --fs-uuid --set=root ${BOOT_UUID}
 	    echo	'Loading Linux vanilla ...'
 	    linux   /vmlinuz-vanilla root=UUID=${ROOT_UUID} rw  modules=sd-mod,usb-storage,ext4 nomodeset quiet rootfstype=ext4
 	    echo	'Loading initial ramdisk ...'
 	    initrd  /initramfs-vanilla
 	}
 	EOF
 }	

 install_bootloader() {

 	# grub-bios

 	apk add grub grub-bios
 	grub-install --target=i386-pc --recheck --boot-directory /boot ${LOOP_DEV}
 	
 	# grub-efi
 	apk add grub-efi efibootmgr
 	grub-install --target=${GRUB_EFI_TARGET} --efi-directory=/boot --boot-directory=/boot --bootloader-id=grub --removable

 	gen_grub_cfg

 	# sometimes after reboot, the bootloader work not normal, seems need to reboot again
 	# alpine x86 efi bootloader not support x64 pc
 }

 gen_fstabs() {
 	echo "PARTUUID=${BOOT_PARTUUID}  /boot           vfat    defaults          0       2
 PARTUUID=${ROOT_PARTUUID}  /               ext4    defaults,noatime         0       1"
 }

 gen_resize2fs_once_service() {
 	cat > /etc/init.d/resize2fs-once <<'EOF'
 #!/sbin/openrc-run
 command="/usr/bin/resize2fs-once"
 command_background=false
 depend() {
        after modules
        need localmount
 }
 EOF

 	cat > /usr/bin/resize2fs-once <<'EOF'
 #!/bin/sh 
 set -xe
 ROOT_DEV=$(findmnt / -o source -n)
 cat > /tmp/fdisk.cmd <<-EOF
 	d
 	2
 	
 	n
 	p
 	2
 	
 	
 	w
 	EOF
 fdisk "$(echo "$ROOT_DEV" | sed -E 's/p?2$//')" < /tmp/fdisk.cmd
 rm -f /tmp/fdisk.cmd
 partprobe
 resize2fs "$ROOT_DEV"
 rc-update del resize2fs-once default
 #reboot
 EOF

 chmod +x /etc/init.d/resize2fs-once /usr/bin/resize2fs-once
 rc-update add resize2fs-once default
 }

 gen_nm_ntpd_dispatcher_scripts() {
        cat > /etc/NetworkManager/dispatcher.d/10-ntpd <<'EOF'
 #!/bin/sh

 set -xe

 case "$2" in
        up)
                rc-service ntpd restart
        ;;
        down)
                rc-service ntpd stop
        ;;
 esac
 EOF

 chmod +x /etc/NetworkManager/dispatcher.d/10-ntpd
 }

 make_bash_fancy() {
 	su alpine <<-'EOF'
 	sh -c 'cat > /home/alpine/.profile << "EOF"
 	if [ -f "$HOME/.bashrc" ] ; then
 	    source $HOME/.bashrc
 	fi
 	EOF'
 	
 	wget https://gist.github.com/yangxuan8282/f2537770982a5dec74095ce4f32de59c/raw/ce003332eff55d50738b726f68a1b493c6867594/.bashrc -P /home/alpine
 	EOF
 }

 add_normal_user() {
 	addgroup alpine
 	adduser -G alpine -s /bin/bash -D alpine
 	echo "alpine:alpine" | /usr/sbin/chpasswd
 	echo "alpine ALL=NOPASSWD: ALL" >> /etc/sudoers
 }

 add_user_groups() {
 	for USER_GROUP in adm dialout cdrom audio users wheel video games plugdev input netdev; do
 		adduser alpine $USER_GROUP
 	done
 }

 setup_ntp_server() {
 	sed -i 's/pool.ntp.org/cn.pool.ntp.org/' /etc/init.d/ntpd
 }

 install_xorg_driver() {
 	apk add xorg-server xf86-video-intel xf86-video-fbdev xf86-input-libinput
 }

 install_xfce4() {

 	install_xorg_driver

 	apk add xfce4 xfce4-mixer xfce4-wavelan-plugin lxdm paper-icon-theme arc-theme \
 		gvfs gvfs-smb sshfs \
        	network-manager-applet gnome-keyring

 	mkdir -p /usr/share/wallpapers &&
 	curl https://img2.goodfon.com/original/2048x1820/3/b6/android-5-0-lollipop-material-5355.jpg \
 		--output /usr/share/wallpapers/android-5-0-lollipop-material-5355.jpg

 	su alpine sh -c 'mkdir -p /home/alpine/.config && \
 	wget https://github.com/yangxuan8282/dotfiles/archive/master.tar.gz -O- | \
 		tar -C /home/alpine/.config -xzf - --strip=2 dotfiles-master/alpine-config'

 	sed -i 's/^# autologin=dgod/autologin=alpine/' /etc/lxdm/lxdm.conf
 	sed -i 's|^# session=/usr/bin/startlxde|session=/usr/bin/startxfce4|' /etc/lxdm/lxdm.conf

 	rc-update add lxdm default
 }

 # take from postmarketOS

 setup_openrc_service() {
 	setup-udev -n

 	for service in devfs dmesg; do
 		rc-update add $service sysinit
 	done
 	for service in hwclock modules sysctl hostname bootmisc swclock syslog; do
 		rc-update add $service boot
 	done
 	for service in dbus haveged sshd wpa_supplicant ntpd local networkmanager; do
 		rc-update add $service default
 	done
 	for service in mount-ro killprocs savecache; do
 		rc-update add $service shutdown
 	done

 	mkdir -p /run/openrc
 	touch /run/openrc/shutdowntime
 }

 gen_nm_config() {
 	cat <<EOF
 [main]
 plugins+=ifupdown
 dhcp=dhcpcd

 [ifupdown]
 managed=true

 [logging]
 level=INFO

 [device-mac-randomization]
 wifi.scan-rand-mac-address=yes
 EOF
 }

 gen_wpa_supplicant_config() {
 	sed -i 's/wpa_supplicant_args=\"/wpa_supplicant_args=\" -u -Dwext,nl80211/' /etc/conf.d/wpa_supplicant
 	touch /etc/wpa_supplicant/wpa_supplicant.conf
 }

 gen_syslog_config() {
 	sed s/=\"/=\""-C4048 "/  -i /etc/conf.d/syslog
 }

 gen_env() {
 	echo "LOOP_DEV=${LOOP_DEV}
 	ROOT_PARTUUID=${ROOT_PARTUUID}
 	BOOT_UUID=${BOOT_UUID}
 	ROOT_UUID=${ROOT_UUID}
 	GRUB_EFI_TARGET=${GRUB_EFI_TARGET}"
 }

 setup_chroot() {
 	chroot mnt /bin/sh <<-EOF
 		set -xe
 		source /root/env_file
 		source /root/functions
 		rm -f /root/functions /root/env_file
 		echo "root:toor" | chpasswd
 		apk --update add sudo
 		add_normal_user
 		echo "alpine" > /etc/hostname
 		echo "127.0.0.1    alpine alpine.localdomain" > /etc/hosts
 		apk add dbus eudev haveged openssh util-linux shadow e2fsprogs e2fsprogs-extra tzdata
 		apk add iw wireless-tools crda wpa_supplicant networkmanager
 		apk add nano htop bash bash-completion curl tar
 		apk add ca-certificates wget && update-ca-certificates
 		setup_openrc_service
 		add_user_groups
 		gen_nm_config > /etc/NetworkManager/conf.d/networkmanager.conf
 		gen_nm_ntpd_dispatcher_scripts
 		gen_wpa_supplicant_config
 		gen_syslog_config
 		setup_ntp_server
 		ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 		make_bash_fancy
 		gen_resize2fs_once_service		
 		install_bootloader
 		install_kernel
 		#install_xfce4
 EOF
 }

 mounts() {
 	mount -t proc none mnt/proc
 	mount -o bind /sys mnt/sys
 	mount -o bind /dev mnt/dev
 }

 umounts() {
 	umount mnt/dev
 	umount mnt/sys
 	umount mnt/proc
 	umount mnt/boot
 	umount mnt
 	losetup -d "$LOOP_DEV"
 }

 #=======================  F u n c t i o n s  =======================#

 pass_function() {
 	sed -nE '/^#===.*F u n c t i o n s.*===#/,/^#===.*F u n c t i o n s.*===#/p' "$0"
 }

 gen_image

 LOOP_DEV=$(losetup --partscan --show --find "${OUTPUT_IMG}")
 BOOT_DEV="$LOOP_DEV"p1
 ROOT_DEV="$LOOP_DEV"p2

 do_format

 do_apkstrap

 IMGID="$(dd if="${OUTPUT_IMG}" skip=440 bs=1 count=4 2>/dev/null | xxd -e | cut -f 2 -d' ')"

 BOOT_PARTUUID="${IMGID}-01"
 ROOT_PARTUUID="${IMGID}-02"

 BOOT_UUID=$(blkid ${BOOT_DEV} | cut -f 2 -d '"')
 ROOT_UUID=$(blkid ${ROOT_DEV} | cut -f 2 -d '"')

 gen_fstabs > mnt/etc/fstab

 gen_env > mnt/root/env_file

 pass_function > mnt/root/functions

 mounts

 setup_mirrors

 cp /etc/resolv.conf mnt/etc/resolv.conf

 setup_chroot

 umounts

 cat >&2 <<-EOF
 	---
 	Installation is complete
 	Flash to usb disk with: dd if=${OUTPUT_IMG} of=/dev/TARGET_DEV bs=4M
 	
 EOF
diff --git a/gen-alpine_rpi.sh b/gen-alpine_rpi.sh
 #!/bin/sh
 # shell script to help install alpine to raspberry pi, support armhf/aarch64

 set -xe

 die() {
 	printf '\033[1;31mERROR:\033[0m %s\n' "$@" >&2  # bold red
 	exit 1
 }

 if [ "$(id -u)" -ne 0 ]; then
 	die 'This script must be run as root!'
 fi

 which wget > /dev/null || die 'please install wget first'

 cd "$(dirname "$0")"

 DEST=$(pwd)

 branch="edge"
 chroot_dir="$DEST/mnt"

 usage() {
 	cat <<EOF
 	Usage: gen-alpine.sh [options]
 	Valid options are:
 		-a ARCH                 Options: armhf, aarch64.
 		-m ALPINE_MIRROR        URI of the mirror to fetch packages from
 		                        (default is https://mirrors.ustc.edu.cn/alpine).
 		-h                      Show this help message and exit.
 EOF
 }

 while getopts 'a:m:h' OPTION; do
 	case "$OPTION" in
 		a) ALPINE_ARCH="$OPTARG";;
 		m) ALPINE_MIRROR="$OPTARG";;
 		h) usage; exit 0;;
 	esac
 done 

 : ${ALPINE_ARCH:="$(uname -m)"}
 : ${ALPINE_MIRROR:="https://mirrors.ustc.edu.cn/alpine"}


 case ${ALPINE_ARCH} in
 	armhf | armv[4-9]*) ALPINE_ARCH="armhf";;
 	aarch64 | arm64) ALPINE_ARCH="aarch64";;
 	*) die 'not supported arch';;
 esac

 mkdir -p ${chroot_dir}

 wget ${ALPINE_MIRROR}/${branch}/main/${ALPINE_ARCH}/apk-tools-static-2.10.0_rc1-r0.apk

 tar -xzf apk-tools-static-*.apk

 ./sbin/apk.static -X ${ALPINE_MIRROR}/${branch}/main -U --allow-untrusted --root ${chroot_dir} --initdb add alpine-base

 cp /etc/resolv.conf ${chroot_dir}/etc/
 mkdir -p ${chroot_dir}/root

 mkdir -p ${chroot_dir}/etc/apk

 for repositories in main community testing ; do
 	echo "${ALPINE_MIRROR}/${branch}/${repositories}" >> ${chroot_dir}/etc/apk/repositories
 done

 #=======================  F u n c t i o n s  =======================#

 mount_devices() {
 	mount -t proc none ${chroot_dir}/proc
 	mount -o bind /sys ${chroot_dir}/sys
 	mount -o bind /dev ${chroot_dir}/dev
 }

 umount_devices() {
 	umount ${chroot_dir}/proc
 	umount ${chroot_dir}/sys
 	umount ${chroot_dir}/dev
 }

 gen_fstabs() {
 	echo "/dev/mmcblk0p1  /boot           vfat    defaults          0       2
 /dev/mmcblk0p2  /               ext4    defaults,noatime  0       1"
 }

 add_normal_user() {
 	addgroup pi
 	adduser -G pi -s /bin/bash -D pi
 	echo "pi:raspberry" | /usr/sbin/chpasswd
 	echo "pi ALL=NOPASSWD: ALL" >> /etc/sudoers
 }

 add_user_groups() {
 	for USER_GROUP in spi i2c gpio; do
 		groupadd -f -r $USER_GROUP
 	done
 	for USER_GROUP in adm dialout cdrom audio users wheel video games plugdev input gpio spi i2c netdev; do
 		adduser pi $USER_GROUP
 	done
 }

 gen_config_txt_32b() {
        cat > /boot/config.txt <<EOF
 disable_splash=0
 boot_delay=0
 gpu_mem=256
 gpu_mem_256=64
 [pi0]
 kernel=vmlinuz-rpi
 initramfs initramfs-rpi
 [pi1]
 kernel=vmlinuz-rpi
 initramfs initramfs-rpi
 [pi2]
 kernel=vmlinuz-rpi2
 initramfs initramfs-rpi2
 [pi3]
 kernel=vmlinuz-rpi2
 initramfs initramfs-rpi2
 [all]
 include usercfg.txt
 EOF
 }

 gen_config_txt_64b() {
        cat > /boot/config.txt <<EOF
 disable_splash=0
 boot_delay=0
 gpu_mem=256
 gpu_mem_256=64

 # 64bit-mode
 arm_control=0x200

 kernel=vmlinuz-rpi
 initramfs initramfs-rpi

 device_tree_address=0x100
 device_tree_end=0x8000

 include usercfg.txt
 EOF
 }

 gen_config_txt() {
 	case $ALPINE_ARCH in
 		armhf) gen_config_txt_32b;;
 		aarch64) gen_config_txt_64b;;
 	esac
 }

 gen_usercfg_txt() {
 	cat > /boot/usercfg.txt <<EOF
 enable_uart=1

 dtparam=sd_overclock=100
 EOF
 }

 get_rpi_blobs() {
 # for branch other than edge, since bootloader package not exist, need to download it directly

 	for blobs in bootcode.bin fixup.dat start.elf ; do
 		wget -P /boot https://github.com/raspberrypi/firmware/raw/master/boot/${blobs}
 	done
 #	apk add raspberrypi-bootloader
 }

 get_rpi_firmware() {
 	# since alpine upstream package linux-firmware-brcm have include those firmwares, no need to download it now

 	for wifi_fw in 43455-sdio.bin 43455-sdio.clm_blob 43455-sdio.txt ; do
 		wget -P /lib/firmware/brcm https://github.com/RPi-Distro/firmware-nonfree/raw/master/brcm/brcmfmac${wifi_fw} 
 	done

 	for bt_fw in BCM43430A1.hcd BCM4345C0.hcd ; do
 		wget -P /lib/firmware/brcm https://github.com/RPi-Distro/bluez-firmware/raw/master/broadcom/${bt_fw}
 	done
 }

 gen_cmdline_txt() {
 	echo "root=/dev/mmcblk0p2 modules=loop,squashfs,sd-mod,usb-storage quiet dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1" > /boot/cmdline.txt
 }

 setup_ntp_server() {
 	sed -i 's/pool.ntp.org/cn.pool.ntp.org/' /etc/chrony/chrony.conf
 }

 add_vchiq_udev_rules() {
 	mkdir -p /etc/udev/rules.d

 	cat > /etc/udev/rules.d/raspberrypi.rules <<"EOF"
 SUBSYSTEM=="vchiq|input", MODE="0777"
 KERNEL=="mouse*|mice|event*",  MODE="0777"
 EOF
 }

 gen_restart_chronyd_once_service() {
 	cat > /etc/init.d/restart-chronyd-once <<'EOF'
 #!/sbin/openrc-run

 command="/usr/bin/restart-chronyd-once"
 command_background=false

 depend() {
        after local
        need networkmanager
 }
 EOF

 	cat > /usr/bin/restart-chronyd-once <<'EOF'
 #!/bin/sh
 # seems need to restart chronyd once after first boot

 set -xe

 rc-service chronyd restart

 rc-update del restart-chronyd-once default
 EOF

 	chmod +x /usr/bin/restart-chronyd-once /etc/init.d/restart-chronyd-once
 	rc-update add restart-chronyd-once default
 }

 # take from postmarketOS

 setup_openrc_service() {
 	setup-udev -n

 	for service in devfs dmesg; do
 		rc-update add $service sysinit
 	done
 	for service in modules sysctl hostname bootmisc swclock syslog; do
 		rc-update add $service boot
 	done
 	for service in dbus haveged sshd wpa_supplicant chronyd local networkmanager; do
 		rc-update add $service default
 	done
 	for service in mount-ro killprocs savecache; do
 		rc-update add $service shutdown
 	done

 	mkdir -p /run/openrc
 	touch /run/openrc/shutdowntime
 }

 install_kernel() {
 	case $ALPINE_ARCH in
 		armhf) KERNEL_FLAVOR="linux-rpi linux-rpi2";;
 		aarch64) KERNEL_FLAVOR=linux-rpi;;
 	esac

 	apk add $KERNEL_FLAVOR

 	cd /usr/lib/linux-*/
 	find . -type f -regex ".*\.dtbo\?$" -exec install -Dm644 {} /boot/{} \;
 }

 gen_nm_config() {
 	cat > /etc/NetworkManager/conf.d/networkmanager.conf <<EOF
 [main]
 plugins+=ifupdown
 dhcp=dhcpcd

 [ifupdown]
 managed=true

 [logging]
 level=INFO

 [device-mac-randomization]
 wifi.scan-rand-mac-address=yes
 EOF
 }

 gen_wpa_supplicant_config() {
 	sed -i 's/wpa_supplicant_args=\"/wpa_supplicant_args=\" -u -Dwext,nl80211/' /etc/conf.d/wpa_supplicant
 	touch /etc/wpa_supplicant/wpa_supplicant.conf
 }

 gen_syslog_config() {
 	sed s/=\"/=\""-C4048 "/  -i /etc/conf.d/syslog
 }

 gen_env() {
 	echo "ALPINE_ARCH=${ALPINE_ARCH}"
 }

 gen_rpi_alpine_image() {
 	chroot ${chroot_dir} /bin/sh <<-EOF
 		set -xe
 		source /root/env_file
 		source /etc/profile
 		source /root/functions
 		rm -f /root/functions
 		echo "root:toor" | chpasswd
 		apk --update add sudo
 		add_normal_user
 		echo "raspberrypi" > /etc/hostname
 		echo "127.0.0.1    raspberrypi raspberrypi.localdomain" > /etc/hosts
 		apk add dbus eudev haveged chrony openssh util-linux shadow e2fsprogs tzdata
 		apk add iw wireless-tools crda wpa_supplicant networkmanager
 		apk add nano htop bash bash-completion curl
 		apk add ca-certificates wget && update-ca-certificates
 		setup_openrc_service
 		add_user_groups
 		gen_nm_config
 		gen_wpa_supplicant_config
 		echo "options cfg80211 ieee80211_regdom=CN" > /etc/modprobe.d/cfg80211.conf
 		gen_syslog_config
 		setup_ntp_server
 		ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
 		install_kernel
 		get_rpi_blobs
 		#get_rpi_firmware
 		add_vchiq_udev_rules
 		gen_restart_chronyd_once_service
 		#apk add omxplayer
 		gen_cmdline_txt
 		gen_config_txt
 		gen_usercfg_txt
 		gen_fstabs > /etc/fstab
 EOF
 }

 #=======================  F u n c t i o n s  =======================#

 pass_function() {
 	sed -nE '/^#===.*F u n c t i o n s.*===#/,/^#===.*F u n c t i o n s.*===#/p' "$0"
 }

 mount_devices

 gen_env > mnt/root/env_file

 pass_function > ${chroot_dir}/root/functions

 gen_rpi_alpine_image

 umount_devices
diff --git a/wifi-helper.md b/wifi-helper.md
	#!/bin/sh
	#genetate alpine edge x86/x86_64 image: chmod +x gen-alpine.sh && sudo ./gen-alpine.sh
	#depends: apk-tools-static, vim(xxd)

	set -x

	die() {
	printf '\033[1;31mERROR:\033[0m %s\n' "$@" >&2 # bold red
	exit 1
	}

	if [ "$(id -u)" -ne 0 ]; then
	die 'This script must be run as root!'
	fi

	which xxd >/dev/null \|\| exit

	BUILD_DATE="$(date +%Y-%m-%d)"

	usage() {
	cat <<EOF
	Usage: gen-alpine.sh [options]
	Valid options are:
	-a ARCH Options: x86, x86_64.
	-m ALPINE_MIRROR URI of the mirror to fetch packages from
	(default is https://mirrors.tuna.tsinghua.edu.cn/alpine).
	-o OUTPUT_IMG Output img file
	(default is BUILD_DATE-alpine-ARCH.img).
	-h Show this help message and exit.
	EOF
	}

	while getopts 'a:m:o:h' OPTION; do
	case "$OPTION" in
	a) ARCH="$OPTARG";;
	m) ALPINE_MIRROR="$OPTARG";;
	o) OUTPUT="$OPTARG";;
	h) usage; exit 0;;
	esac
	done

	: ${ARCH:="$(uname -m)"}
	: ${ALPINE_MIRROR:="https://mirrors.tuna.tsinghua.edu.cn/alpine"}
	: ${OUTPUT_IMG:="${BUILD_DATE}-alpine-${ARCH}.img"}

	case $ARCH in
	x86\| i[3456]86 ) ARCH=x86 GRUB_EFI_TARGET=i386-efi;;
	x64 \| x86_64 ) ARCH=X86_64 GRUB_EFI_TARGET=x86_64-efi;;
	*) die 'not supported arch';;
	esac

	#======================= F u n c t i o n s =======================#

	gen_image() {
	fallocate -l $(( 700 * 1024 *1024 )) "$OUTPUT_IMG"
	cat > fdisk.cmd <<-EOF
	o
	n
	p
	1

	+100MB
	t
	c
	a
	n
	p
	2


	w
	EOF
	fdisk "$OUTPUT_IMG" < fdisk.cmd
	rm -f fdisk.cmd
	}

	do_format() {
	mkfs.fat -F32 "$BOOT_DEV"
	mkfs.ext4 "$ROOT_DEV"
	mkdir -p mnt
	mount "$ROOT_DEV" mnt
	mkdir -p mnt/boot
	mount "$BOOT_DEV" mnt/boot
	}

	setup_mirrors() {
	mv mnt/etc/apk/repositories mnt/etc/apk/repositories.old

	for ALPINE_REPOS in main community testing ; do
	echo ${ALPINE_MIRROR}/edge/${ALPINE_REPOS} >> mnt/etc/apk/repositories
	done
	}

	do_apkstrap() {
	apk.static -X ${ALPINE_MIRROR}/edge/main -U --allow-untrusted --root mnt --initdb add alpine-base
	}

	install_kernel() {
	apk add linux-vanilla
	}

	gen_grub_cfg() {
	cat > /boot/grub/grub.cfg <<- EOF
	set timeout=2
	insmod all_video
	menuentry "Alpine Linux" {
	search --no-floppy --fs-uuid --set=root ${BOOT_UUID}
	echo 'Loading Linux vanilla ...'
	linux /vmlinuz-vanilla root=UUID=${ROOT_UUID} rw modules=sd-mod,usb-storage,ext4 nomodeset quiet rootfstype=ext4
	echo 'Loading initial ramdisk ...'
	initrd /initramfs-vanilla
	}
	EOF
	}

	install_bootloader() {

	# grub-bios

	apk add grub grub-bios
	grub-install --target=i386-pc --recheck --boot-directory /boot ${LOOP_DEV}

	# grub-efi
	apk add grub-efi efibootmgr
	grub-install --target=${GRUB_EFI_TARGET} --efi-directory=/boot --boot-directory=/boot --bootloader-id=grub --removable

	gen_grub_cfg

	# sometimes after reboot, the bootloader work not normal, seems need to reboot again
	# alpine x86 efi bootloader not support x64 pc
	}

	gen_fstabs() {
	echo "PARTUUID=${BOOT_PARTUUID} /boot vfat defaults 0 2
	PARTUUID=${ROOT_PARTUUID} / ext4 defaults,noatime 0 1"
	}

	gen_resize2fs_once_service() {
	cat > /etc/init.d/resize2fs-once <<'EOF'
	#!/sbin/openrc-run
	command="/usr/bin/resize2fs-once"
	command_background=false
	depend() {
	after modules
	need localmount
	}
	EOF

	cat > /usr/bin/resize2fs-once <<'EOF'
	#!/bin/sh
	set -xe
	ROOT_DEV=$(findmnt / -o source -n)
	cat > /tmp/fdisk.cmd <<-EOF
	d
	2

	n
	p
	2


	w
	EOF
	fdisk "$(echo "$ROOT_DEV" \| sed -E 's/p?2$//')" < /tmp/fdisk.cmd
	rm -f /tmp/fdisk.cmd
	partprobe
	resize2fs "$ROOT_DEV"
	rc-update del resize2fs-once default
	#reboot
	EOF

	chmod +x /etc/init.d/resize2fs-once /usr/bin/resize2fs-once
	rc-update add resize2fs-once default
	}

	gen_nm_ntpd_dispatcher_scripts() {
	cat > /etc/NetworkManager/dispatcher.d/10-ntpd <<'EOF'
	#!/bin/sh

	set -xe

	case "$2" in
	up)
	rc-service ntpd restart
	;;
	down)
	rc-service ntpd stop
	;;
	esac
	EOF

	chmod +x /etc/NetworkManager/dispatcher.d/10-ntpd
	}

	make_bash_fancy() {
	su alpine <<-'EOF'
	sh -c 'cat > /home/alpine/.profile << "EOF"
	if [ -f "$HOME/.bashrc" ] ; then
	source $HOME/.bashrc
	fi
	EOF'

	wget https://gist.github.com/yangxuan8282/f2537770982a5dec74095ce4f32de59c/raw/ce003332eff55d50738b726f68a1b493c6867594/.bashrc -P /home/alpine
	EOF
	}

	add_normal_user() {
	addgroup alpine
	adduser -G alpine -s /bin/bash -D alpine
	echo "alpine:alpine" \| /usr/sbin/chpasswd
	echo "alpine ALL=NOPASSWD: ALL" >> /etc/sudoers
	}

	add_user_groups() {
	for USER_GROUP in adm dialout cdrom audio users wheel video games plugdev input netdev; do
	adduser alpine $USER_GROUP
	done
	}

	setup_ntp_server() {
	sed -i 's/pool.ntp.org/cn.pool.ntp.org/' /etc/init.d/ntpd
	}

	install_xorg_driver() {
	apk add xorg-server xf86-video-intel xf86-video-fbdev xf86-input-libinput
	}

	install_xfce4() {

	install_xorg_driver

	apk add xfce4 xfce4-mixer xfce4-wavelan-plugin lxdm paper-icon-theme arc-theme \
	gvfs gvfs-smb sshfs \
	network-manager-applet gnome-keyring

	mkdir -p /usr/share/wallpapers &&
	curl https://img2.goodfon.com/original/2048x1820/3/b6/android-5-0-lollipop-material-5355.jpg \
	--output /usr/share/wallpapers/android-5-0-lollipop-material-5355.jpg

	su alpine sh -c 'mkdir -p /home/alpine/.config && \
	wget https://github.com/yangxuan8282/dotfiles/archive/master.tar.gz -O- \| \
	tar -C /home/alpine/.config -xzf - --strip=2 dotfiles-master/alpine-config'

	sed -i 's/^# autologin=dgod/autologin=alpine/' /etc/lxdm/lxdm.conf
	sed -i 's\|^# session=/usr/bin/startlxde\|session=/usr/bin/startxfce4\|' /etc/lxdm/lxdm.conf

	rc-update add lxdm default
	}

	# take from postmarketOS

	setup_openrc_service() {
	setup-udev -n

	for service in devfs dmesg; do
	rc-update add $service sysinit
	done
	for service in hwclock modules sysctl hostname bootmisc swclock syslog; do
	rc-update add $service boot
	done
	for service in dbus haveged sshd wpa_supplicant ntpd local networkmanager; do
	rc-update add $service default
	done
	for service in mount-ro killprocs savecache; do
	rc-update add $service shutdown
	done

	mkdir -p /run/openrc
	touch /run/openrc/shutdowntime
	}

	gen_nm_config() {
	cat <<EOF
	[main]
	plugins+=ifupdown
	dhcp=dhcpcd

	[ifupdown]
	managed=true

	[logging]
	level=INFO

	[device-mac-randomization]
	wifi.scan-rand-mac-address=yes
	EOF
	}

	gen_wpa_supplicant_config() {
	sed -i 's/wpa_supplicant_args=\"/wpa_supplicant_args=\" -u -Dwext,nl80211/' /etc/conf.d/wpa_supplicant
	touch /etc/wpa_supplicant/wpa_supplicant.conf
	}

	gen_syslog_config() {
	sed s/=\"/=\""-C4048 "/ -i /etc/conf.d/syslog
	}

	gen_env() {
	echo "LOOP_DEV=${LOOP_DEV}
	ROOT_PARTUUID=${ROOT_PARTUUID}
	BOOT_UUID=${BOOT_UUID}
	ROOT_UUID=${ROOT_UUID}
	GRUB_EFI_TARGET=${GRUB_EFI_TARGET}"
	}

	setup_chroot() {
	chroot mnt /bin/sh <<-EOF
	set -xe
	source /root/env_file
	source /root/functions
	rm -f /root/functions /root/env_file
	echo "root:toor" \| chpasswd
	apk --update add sudo
	add_normal_user
	echo "alpine" > /etc/hostname
	echo "127.0.0.1 alpine alpine.localdomain" > /etc/hosts
	apk add dbus eudev haveged openssh util-linux shadow e2fsprogs e2fsprogs-extra tzdata
	apk add iw wireless-tools crda wpa_supplicant networkmanager
	apk add nano htop bash bash-completion curl tar
	apk add ca-certificates wget && update-ca-certificates
	setup_openrc_service
	add_user_groups
	gen_nm_config > /etc/NetworkManager/conf.d/networkmanager.conf
	gen_nm_ntpd_dispatcher_scripts
	gen_wpa_supplicant_config
	gen_syslog_config
	setup_ntp_server
	ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
	make_bash_fancy
	gen_resize2fs_once_service
	install_bootloader
	install_kernel
	#install_xfce4
	EOF
	}

	mounts() {
	mount -t proc none mnt/proc
	mount -o bind /sys mnt/sys
	mount -o bind /dev mnt/dev
	}

	umounts() {
	umount mnt/dev
	umount mnt/sys
	umount mnt/proc
	umount mnt/boot
	umount mnt
	losetup -d "$LOOP_DEV"
	}

	#======================= F u n c t i o n s =======================#

	pass_function() {
	sed -nE '/^#===.F u n c t i o n s.===#/,/^#===.F u n c t i o n s.===#/p' "$0"
	}

	gen_image

	LOOP_DEV=$(losetup --partscan --show --find "${OUTPUT_IMG}")
	BOOT_DEV="$LOOP_DEV"p1
	ROOT_DEV="$LOOP_DEV"p2

	do_format

	do_apkstrap

	IMGID="$(dd if="${OUTPUT_IMG}" skip=440 bs=1 count=4 2>/dev/null \| xxd -e \| cut -f 2 -d' ')"

	BOOT_PARTUUID="${IMGID}-01"
	ROOT_PARTUUID="${IMGID}-02"

	BOOT_UUID=$(blkid ${BOOT_DEV} \| cut -f 2 -d '"')
	ROOT_UUID=$(blkid ${ROOT_DEV} \| cut -f 2 -d '"')

	gen_fstabs > mnt/etc/fstab

	gen_env > mnt/root/env_file

	pass_function > mnt/root/functions

	mounts

	setup_mirrors

	cp /etc/resolv.conf mnt/etc/resolv.conf

	setup_chroot

	umounts

	cat >&2 <<-EOF
	---
	Installation is complete
	Flash to usb disk with: dd if=${OUTPUT_IMG} of=/dev/TARGET_DEV bs=4M

	EOF
	#!/bin/sh
	# shell script to help install alpine to raspberry pi, support armhf/aarch64

	set -xe

	die() {
	printf '\033[1;31mERROR:\033[0m %s\n' "$@" >&2 # bold red
	exit 1
	}

	if [ "$(id -u)" -ne 0 ]; then
	die 'This script must be run as root!'
	fi

	which wget > /dev/null \|\| die 'please install wget first'

	cd "$(dirname "$0")"

	DEST=$(pwd)

	branch="edge"
	chroot_dir="$DEST/mnt"

	usage() {
	cat <<EOF
	Usage: gen-alpine.sh [options]
	Valid options are:
	-a ARCH Options: armhf, aarch64.
	-m ALPINE_MIRROR URI of the mirror to fetch packages from
	(default is https://mirrors.ustc.edu.cn/alpine).
	-h Show this help message and exit.
	EOF
	}

	while getopts 'a:m:h' OPTION; do
	case "$OPTION" in
	a) ALPINE_ARCH="$OPTARG";;
	m) ALPINE_MIRROR="$OPTARG";;
	h) usage; exit 0;;
	esac
	done

	: ${ALPINE_ARCH:="$(uname -m)"}
	: ${ALPINE_MIRROR:="https://mirrors.ustc.edu.cn/alpine"}


	case ${ALPINE_ARCH} in
	armhf \| armv[4-9]*) ALPINE_ARCH="armhf";;
	aarch64 \| arm64) ALPINE_ARCH="aarch64";;
	*) die 'not supported arch';;
	esac

	mkdir -p ${chroot_dir}

	wget ${ALPINE_MIRROR}/${branch}/main/${ALPINE_ARCH}/apk-tools-static-2.10.0_rc1-r0.apk

	tar -xzf apk-tools-static-*.apk

	./sbin/apk.static -X ${ALPINE_MIRROR}/${branch}/main -U --allow-untrusted --root ${chroot_dir} --initdb add alpine-base

	cp /etc/resolv.conf ${chroot_dir}/etc/
	mkdir -p ${chroot_dir}/root

	mkdir -p ${chroot_dir}/etc/apk

	for repositories in main community testing ; do
	echo "${ALPINE_MIRROR}/${branch}/${repositories}" >> ${chroot_dir}/etc/apk/repositories
	done

	#======================= F u n c t i o n s =======================#

	mount_devices() {
	mount -t proc none ${chroot_dir}/proc
	mount -o bind /sys ${chroot_dir}/sys
	mount -o bind /dev ${chroot_dir}/dev
	}

	umount_devices() {
	umount ${chroot_dir}/proc
	umount ${chroot_dir}/sys
	umount ${chroot_dir}/dev
	}

	gen_fstabs() {
	echo "/dev/mmcblk0p1 /boot vfat defaults 0 2
	/dev/mmcblk0p2 / ext4 defaults,noatime 0 1"
	}

	add_normal_user() {
	addgroup pi
	adduser -G pi -s /bin/bash -D pi
	echo "pi:raspberry" \| /usr/sbin/chpasswd
	echo "pi ALL=NOPASSWD: ALL" >> /etc/sudoers
	}

	add_user_groups() {
	for USER_GROUP in spi i2c gpio; do
	groupadd -f -r $USER_GROUP
	done
	for USER_GROUP in adm dialout cdrom audio users wheel video games plugdev input gpio spi i2c netdev; do
	adduser pi $USER_GROUP
	done
	}

	gen_config_txt_32b() {
	cat > /boot/config.txt <<EOF
	disable_splash=0
	boot_delay=0
	gpu_mem=256
	gpu_mem_256=64
	[pi0]
	kernel=vmlinuz-rpi
	initramfs initramfs-rpi
	[pi1]
	kernel=vmlinuz-rpi
	initramfs initramfs-rpi
	[pi2]
	kernel=vmlinuz-rpi2
	initramfs initramfs-rpi2
	[pi3]
	kernel=vmlinuz-rpi2
	initramfs initramfs-rpi2
	[all]
	include usercfg.txt
	EOF
	}

	gen_config_txt_64b() {
	cat > /boot/config.txt <<EOF
	disable_splash=0
	boot_delay=0
	gpu_mem=256
	gpu_mem_256=64

	# 64bit-mode
	arm_control=0x200

	kernel=vmlinuz-rpi
	initramfs initramfs-rpi

	device_tree_address=0x100
	device_tree_end=0x8000

	include usercfg.txt
	EOF
	}

	gen_config_txt() {
	case $ALPINE_ARCH in
	armhf) gen_config_txt_32b;;
	aarch64) gen_config_txt_64b;;
	esac
	}

	gen_usercfg_txt() {
	cat > /boot/usercfg.txt <<EOF
	enable_uart=1

	dtparam=sd_overclock=100
	EOF
	}

	get_rpi_blobs() {
	# for branch other than edge, since bootloader package not exist, need to download it directly

	for blobs in bootcode.bin fixup.dat start.elf ; do
	wget -P /boot https://github.com/raspberrypi/firmware/raw/master/boot/${blobs}
	done
	# apk add raspberrypi-bootloader
	}

	get_rpi_firmware() {
	# since alpine upstream package linux-firmware-brcm have include those firmwares, no need to download it now

	for wifi_fw in 43455-sdio.bin 43455-sdio.clm_blob 43455-sdio.txt ; do
	wget -P /lib/firmware/brcm https://github.com/RPi-Distro/firmware-nonfree/raw/master/brcm/brcmfmac${wifi_fw}
	done

	for bt_fw in BCM43430A1.hcd BCM4345C0.hcd ; do
	wget -P /lib/firmware/brcm https://github.com/RPi-Distro/bluez-firmware/raw/master/broadcom/${bt_fw}
	done
	}

	gen_cmdline_txt() {
	echo "root=/dev/mmcblk0p2 modules=loop,squashfs,sd-mod,usb-storage quiet dwc_otg.lpm_enable=0 console=ttyAMA0,115200 console=tty1" > /boot/cmdline.txt
	}

	setup_ntp_server() {
	sed -i 's/pool.ntp.org/cn.pool.ntp.org/' /etc/chrony/chrony.conf
	}

	add_vchiq_udev_rules() {
	mkdir -p /etc/udev/rules.d

	cat > /etc/udev/rules.d/raspberrypi.rules <<"EOF"
	SUBSYSTEM=="vchiq\|input", MODE="0777"
	KERNEL=="mouse\|mice\|event", MODE="0777"
	EOF
	}

	gen_restart_chronyd_once_service() {
	cat > /etc/init.d/restart-chronyd-once <<'EOF'
	#!/sbin/openrc-run

	command="/usr/bin/restart-chronyd-once"
	command_background=false

	depend() {
	after local
	need networkmanager
	}
	EOF

	cat > /usr/bin/restart-chronyd-once <<'EOF'
	#!/bin/sh
	# seems need to restart chronyd once after first boot

	set -xe

	rc-service chronyd restart

	rc-update del restart-chronyd-once default
	EOF

	chmod +x /usr/bin/restart-chronyd-once /etc/init.d/restart-chronyd-once
	rc-update add restart-chronyd-once default
	}

	# take from postmarketOS

	setup_openrc_service() {
	setup-udev -n

	for service in devfs dmesg; do
	rc-update add $service sysinit
	done
	for service in modules sysctl hostname bootmisc swclock syslog; do
	rc-update add $service boot
	done
	for service in dbus haveged sshd wpa_supplicant chronyd local networkmanager; do
	rc-update add $service default
	done
	for service in mount-ro killprocs savecache; do
	rc-update add $service shutdown
	done

	mkdir -p /run/openrc
	touch /run/openrc/shutdowntime
	}

	install_kernel() {
	case $ALPINE_ARCH in
	armhf) KERNEL_FLAVOR="linux-rpi linux-rpi2";;
	aarch64) KERNEL_FLAVOR=linux-rpi;;
	esac

	apk add $KERNEL_FLAVOR

	cd /usr/lib/linux-*/
	find . -type f -regex ".*\.dtbo\?$" -exec install -Dm644 {} /boot/{} \;
	}

	gen_nm_config() {
	cat > /etc/NetworkManager/conf.d/networkmanager.conf <<EOF
	[main]
	plugins+=ifupdown
	dhcp=dhcpcd

	[ifupdown]
	managed=true

	[logging]
	level=INFO

	[device-mac-randomization]
	wifi.scan-rand-mac-address=yes
	EOF
	}

	gen_wpa_supplicant_config() {
	sed -i 's/wpa_supplicant_args=\"/wpa_supplicant_args=\" -u -Dwext,nl80211/' /etc/conf.d/wpa_supplicant
	touch /etc/wpa_supplicant/wpa_supplicant.conf
	}

	gen_syslog_config() {
	sed s/=\"/=\""-C4048 "/ -i /etc/conf.d/syslog
	}

	gen_env() {
	echo "ALPINE_ARCH=${ALPINE_ARCH}"
	}

	gen_rpi_alpine_image() {
	chroot ${chroot_dir} /bin/sh <<-EOF
	set -xe
	source /root/env_file
	source /etc/profile
	source /root/functions
	rm -f /root/functions
	echo "root:toor" \| chpasswd
	apk --update add sudo
	add_normal_user
	echo "raspberrypi" > /etc/hostname
	echo "127.0.0.1 raspberrypi raspberrypi.localdomain" > /etc/hosts
	apk add dbus eudev haveged chrony openssh util-linux shadow e2fsprogs tzdata
	apk add iw wireless-tools crda wpa_supplicant networkmanager
	apk add nano htop bash bash-completion curl
	apk add ca-certificates wget && update-ca-certificates
	setup_openrc_service
	add_user_groups
	gen_nm_config
	gen_wpa_supplicant_config
	echo "options cfg80211 ieee80211_regdom=CN" > /etc/modprobe.d/cfg80211.conf
	gen_syslog_config
	setup_ntp_server
	ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
	install_kernel
	get_rpi_blobs
	#get_rpi_firmware
	add_vchiq_udev_rules
	gen_restart_chronyd_once_service
	#apk add omxplayer
	gen_cmdline_txt
	gen_config_txt
	gen_usercfg_txt
	gen_fstabs > /etc/fstab
	EOF
	}

	#======================= F u n c t i o n s =======================#

	pass_function() {
	sed -nE '/^#===.F u n c t i o n s.===#/,/^#===.F u n c t i o n s.===#/p' "$0"
	}

	mount_devices

	gen_env > mnt/root/env_file

	pass_function > ${chroot_dir}/root/functions

	gen_rpi_alpine_image

	umount_devices