aboutsummaryrefslogtreecommitdiffstats
path: root/scripts/mkimg.base.sh
blob: 6dfd9db8a9864e28769c1f607b35e0b90389ec48 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
build_kernel() {
	local _flavor="$2"
	shift 3
	local _pkgs="$@"
	update-kernel \
		$_hostkeys \
		${_abuild_pubkey:+--apk-pubkey $_abuild_pubkey} \
		--media \
		--flavor "$_flavor" \
		--arch "$ARCH" \
		--package "$_pkgs" \
		--feature "$initfs_features" \
		--repositories-file "$APKROOT/etc/apk/repositories" \
		"$DESTDIR"
}

section_kernels() {
	local _f _a _pkgs
	for _f in $kernel_flavors; do
		_pkgs="linux-$_f linux-firmware"
		for _a in $kernel_addons; do
			_pkgs="$_pkgs $_a-$_f"
		done
		local id=$( (echo "$initfs_features::$_hostkeys" ; apk fetch --root "$APKROOT" --simulate alpine-base $_pkgs | sort) | checksum)
		build_section kernel $ARCH $_f $id $_pkgs
	done
}

build_apks() {
	local _apksdir="$DESTDIR/apks"
	local _archdir="$_apksdir/$ARCH"
	mkdir -p "$_archdir"

	apk fetch --root "$APKROOT" --link --recursive --output "$_archdir" $apks
	if ! ls "$_archdir"/*.apk >& /dev/null; then
		return 1
	fi

	apk index \
		--description "$RELEASE" \
		--rewrite-arch "$ARCH" \
		--index "$_archdir"/APKINDEX.tar.gz \
		--output "$_archdir"/APKINDEX.tar.gz \
		"$_archdir"/*.apk
	abuild-sign "$_archdir"/APKINDEX.tar.gz
	touch "$_apksdir/.boot_repository"
}

section_apks() {
	[ -n "$apks" ] || return 0
	build_section apks $ARCH $(apk fetch --root "$APKROOT" --simulate --recursive $apks | sort | checksum)
}

build_apkovl() {
	local _host="$1" _script=
	msg "Generating $_host.apkovl.tar.gz"
	for _script in "$PWD"/"$apkovl" $HOME/.mkimage/$apkovl \
		$(readlink -f "$scriptdir/$apkovl"); do

		if [ -f "$_script" ]; then
			break
		fi
	done
	[ -n "$_script" ] || die "could not find $apkovl"
	(cd "$DESTDIR"; fakeroot "$_script" "$_host")
}

section_apkovl() {
	[ -n "$apkovl" -a -n "$hostname" ] || return 0
	build_section apkovl $hostname $(checksum < "$apkovl")
}

build_syslinux() {
	local _fn
	mkdir -p "$DESTDIR"/boot/syslinux
	apk fetch --root "$APKROOT" --stdout syslinux | tar -C "$DESTDIR" -xz usr/share/syslinux
	for _fn in isohdpfx.bin isolinux.bin ldlinux.c32 libutil.c32 libcom32.c32 mboot.c32; do
		mv "$DESTDIR"/usr/share/syslinux/$_fn "$DESTDIR"/boot/syslinux/$_fn || return 1
	done
	rm -rf "$DESTDIR"/usr
}

section_syslinux() {
	[ "$ARCH" = x86 -o "$ARCH" = x86_64 ] || return 0
	[ "$output_format" = "iso" ] || return 0
	build_section syslinux $(apk fetch --root "$APKROOT" --simulate syslinux | sort | checksum)
}

syslinux_gen_config() {
	[ -z "$syslinux_serial" ] || echo "SERIAL $syslinux_serial"
	echo "TIMEOUT ${syslinux_timeout:-20}"
	echo "PROMPT ${syslinux_prompt:-1}"
	echo "DEFAULT ${kernel_flavors%% *}"

	local _f
	for _f in $kernel_flavors; do
		if [ -z "${xen_params+set}" ]; then
			cat <<- EOF

			LABEL $_f
				MENU LABEL Linux $_f
				KERNEL /boot/vmlinuz-$_f
				INITRD /boot/initramfs-$_f
				DEVICETREEDIR /boot/dtbs
				APPEND $initfs_cmdline $kernel_cmdline
			EOF
		else
			cat <<- EOF

			LABEL $_f
				MENU LABEL Xen/Linux $_f
				KERNEL /boot/syslinux/mboot.c32
				APPEND /boot/xen.gz ${xen_params} --- /boot/vmlinuz-$_f $initfs_cmdline $kernel_cmdline --- /boot/initramfs-$_f
			EOF
		fi
	done
}

grub_gen_config() {
	local _f
	echo "set timeout=2"
	for _f in $kernel_flavors; do
		if [ -z "${xen_params+set}" ]; then
			cat <<- EOF

			menuentry "Linux $_f" {
				linux	/boot/vmlinuz-$_f $initfs_cmdline $kernel_cmdline
				initrd	/boot/initramfs-$_f
			}
			EOF
		else
			cat <<- EOF

			menuentry "Xen/Linux $_f" {
				multiboot2	/boot/xen.gz ${xen_params}
				module2		/boot/vmlinuz-$_f $initfs_cmdline $kernel_cmdline
				module2		/boot/initramfs-$_f
			}
			EOF
		fi
	done
}

build_syslinux_cfg() {
	local syslinux_cfg="$1"
	mkdir -p "${DESTDIR}/$(dirname $syslinux_cfg)"
	syslinux_gen_config > "${DESTDIR}"/$syslinux_cfg
}

section_syslinux_cfg() {
	syslinux_cfg=""
	if [ "$ARCH" = x86 -o "$ARCH" = x86_64 ]; then
		[ ! "$output_format" = "iso" ] || syslinux_cfg="boot/syslinux/syslinux.cfg"
	fi
	[ ! -n "$uboot_install" ] || syslinux_cfg="extlinux/extlinux.conf"
	[ -n "$syslinux_cfg" ] || return 0
	build_section syslinux_cfg $syslinux_cfg $(syslinux_gen_config | checksum)
}

build_grub_cfg() {
	local grub_cfg="$1"
	mkdir -p "${DESTDIR}/$(dirname $grub_cfg)"
	grub_gen_config > "${DESTDIR}"/$grub_cfg
}

grub_gen_earlyconf() {
	cat <<- EOF
	search --no-floppy --set=root --label "alpine-$PROFILE $RELEASE $ARCH"
	set prefix=(\$root)/boot/grub
	EOF
}

build_grub_efi() {
	local _format="$1"
	local _efi="$2"

	# Prepare grub-efi bootloader
	mkdir -p "$DESTDIR/efi/boot"
	grub_gen_earlyconf > "$WORKDIR/grub_early.$3.cfg"
	grub-mkimage \
		--config="$WORKDIR/grub_early.$3.cfg" \
		--prefix="/boot/grub" \
		--output="$DESTDIR/efi/boot/$_efi" \
		--format="$_format" \
		--compression="xz" \
		$grub_mod
}

section_grubieee1275() {
	[ "$ARCH" = ppc64le ] || return 0
	[ "$output_format" = "iso" ] || return 0
	kernel_cmdline="$kernel_cmdline console=hvc0"

	build_section grub_cfg boot/grub/grub.cfg $(grub_gen_config | checksum)
}

section_grub_efi() {
	[ -n "$grub_mod" ] || return 0
	[ "$output_format" = "iso" ] || return 0

	local _format _efi
	case "$ARCH" in
	aarch64)_format="arm64-efi";  _efi="bootaa64.efi" ;;
	arm*)	_format="arm-efi";    _efi="bootarm.efi"  ;;
	x86)	_format="i386-efi";   _efi="bootia32.efi" ;;
	x86_64) _format="x86_64-efi"; _efi="bootx64.efi"  ;;
	*)	return 0 ;;
	esac

	build_section grub_cfg boot/grub/grub.cfg $(grub_gen_config | checksum)
	build_section grub_efi $_format $_efi $(grub_gen_earlyconf | checksum)
}

create_image_iso() {
	local ISO="${OUTDIR}/${output_filename}"
	local _isolinux
	local _efiboot

	if [ -e "${DESTDIR}/boot/syslinux/isolinux.bin" ]; then
		# isolinux enabled
		_isolinux="
			-isohybrid-mbr ${DESTDIR}/boot/syslinux/isohdpfx.bin
			-eltorito-boot boot/syslinux/isolinux.bin
			-eltorito-catalog boot/syslinux/boot.cat
			-no-emul-boot
			-boot-load-size 4
			-boot-info-table
			"
	fi
	if [ -e "${DESTDIR}/efi" -a -e "${DESTDIR}/boot/grub" ]; then
		# Create the EFI boot partition image
		mformat -i ${DESTDIR}/boot/grub/efi.img -C -f 1440 ::
		mcopy -i ${DESTDIR}/boot/grub/efi.img -s ${DESTDIR}/efi ::

		# Enable EFI boot
		if [ -z "$_isolinux" ]; then
			# efi boot only
			_efiboot="
				-efi-boot-part
				--efi-boot-image
				-e boot/grub/efi.img
				-no-emul-boot
				"
		else
			# hybrid isolinux+efi boot
			_efiboot="
				-eltorito-alt-boot
				-e boot/grub/efi.img
				-no-emul-boot
				-isohybrid-gpt-basdat
				"
		fi
	fi

	if [ "$ARCH" = ppc64le ]; then
		grub-mkrescue --output ${ISO} ${DESTDIR} -follow-links \
			-sysid LINUX \
			-volid "alpine-${profile_abbrev:-$PROFILE} $RELEASE $ARCH"
	else
		if [ "$ARCH" = s390x ]; then
			printf %s "$initfs_cmdline $kernel_cmdline " > ${WORKDIR}/parmfile
			for _f in $kernel_flavors; do
				mk-s390-cdboot -p ${WORKDIR}/parmfile \
					-i ${DESTDIR}/boot/vmlinuz-$_f \
					-r ${DESTDIR}/boot/initramfs-$_f \
					-o ${DESTDIR}/boot/merged.img
			done
			iso_opts="$iso_opts -no-emul-boot -eltorito-boot boot/merged.img"
		fi
		xorrisofs \
			-quiet \
			-output ${ISO} \
			-full-iso9660-filenames \
			-joliet \
			-rational-rock \
			-sysid LINUX \
			-volid "alpine-${profile_abbrev:-$PROFILE} $RELEASE $ARCH" \
			$_isolinux \
			$_efiboot \
			-follow-links \
			${iso_opts} \
			${DESTDIR}
	fi
}

create_image_targz() {
	tar -C "${DESTDIR}" -chzf ${OUTDIR}/${output_filename} .
}

profile_base() {
	kernel_flavors="vanilla"
	initfs_cmdline="modules=loop,squashfs,sd-mod,usb-storage quiet"
	initfs_features="ata base bootchart cdrom squashfs ext4 mmc raid scsi usb virtio"
	grub_mod="disk part_gpt part_msdos linux multiboot2 normal configfile search search_label efi_uga efi_gop fat iso9660 cat echo ls test true help gzio"
	apks="alpine-base alpine-mirrors busybox kbd-bkeymaps chrony e2fsprogs network-extras libressl openssh tzdata"
	apkovl=
	hostname="alpine"
}