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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 "$DESTDIR" -xz usr/share/syslinux
for _fn in isolinux.bin ldlinux.c32 libutil.c32 libcom32.c32 mboot.c32; do
mv "$DESTDIR"/usr/share/syslinux/$_fn "$DESTDIR"/boot/syslinux/$_fn || return 1
done
rm -rf "$DESTDIR"/usr
}
section_syslinux() {
[ "$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
}
build_syslinux_cfg() {
local syslinux_cfg="$1"
mkdir -p "${DESTDIR}/$(dirname $syslinux_cfg)"
syslinux_gen_config > "${DESTDIR}"/$syslinux_cfg
}
section_syslinux_cfg() {
syslinux_cfg=""
[ ! "$output_format" = "iso" ] || syslinux_cfg="boot/syslinux/syslinux.cfg"
[ ! -n "$uboot_install" ] || syslinux_cfg="extlinux/extlinux.conf"
[ -n "$syslinux_cfg" ] || return 0
build_section syslinux_cfg $syslinux_cfg $(syslinux_gen_config | checksum)
}
create_image_iso() {
local ISO="${OUTDIR}/${output_filename}"
xorrisofs \
-o ${ISO} -l -J -R \
-b boot/syslinux/isolinux.bin \
-c boot/syslinux/boot.cat \
-V "alpine-$PROFILE $RELEASE $ARCH" \
-no-emul-boot \
-boot-load-size 4 \
-boot-info-table \
-quiet \
-follow-links \
${iso_opts} \
${DESTDIR}
isohybrid ${ISO}
}
create_image_targz() {
tar -C "${DESTDIR}" -chzf ${OUTDIR}/${output_filename} .
}
profile_base() {
kernel_flavors="grsec"
initfs_cmdline="modules=loop,squashfs,sd-mod,usb-storage quiet"
initfs_features="ata base bootchart cdrom squashfs ext2 ext3 ext4 mmc raid scsi usb virtio"
apks="alpine-base alpine-mirrors bkeymaps chrony e2fsprogs network-extras openssl openssh tzdata"
apkovl="genapkovl-dhcp.sh"
hostname="alpine"
}
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