From ec295b6379923c2bb202f12607541a1092228adb Mon Sep 17 00:00:00 2001 From: bin456789 Date: Sat, 2 Dec 2023 23:30:39 +0800 Subject: [PATCH] =?UTF-8?q?alpine:=20=E6=89=8B=E5=8A=A8=E5=88=86=E5=8C=BA?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- trans.sh | 184 +++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 132 insertions(+), 52 deletions(-) diff --git a/trans.sh b/trans.sh index 4423b3b..5206689 100644 --- a/trans.sh +++ b/trans.sh @@ -143,9 +143,22 @@ setup_nginx() { fi } +get_approximate_ram_size() { + # lsmem 需要 util-linux + if is_have_cmd lsmem; then + ram_size=$(lsmem -b 2>/dev/null | grep 'Total online memory:' | awk '{ print $NF/1024/1024 }') + fi + + if [ -z $ram_size ]; then + ram_size=$(free -m | awk '{print $2}' | sed -n '2p') + fi + + echo "$ram_size" +} + setup_nginx_if_enough_ram() { - total_ram=$(free -m | awk '{print $2}' | sed -n '2p') - # 避免后面没内存安装程序，谨慎起见，512内存才安装 + total_ram=$(get_approximate_ram_size) + # 512内存才安装 if [ $total_ram -gt 400 ]; then # lighttpd 虽然运行占用内存少，但安装占用空间大 # setup_lighttpd @@ -215,18 +228,20 @@ qemu_nbd() { mod_motd() { # 安装后 alpine 后要恢复默认 # 自动安装失败后，可能手动安装 alpine，因此无需判断 $distro - if ! [ -e /etc/motd.orig ]; then - cp /etc/motd /etc/motd.orig + file=/etc/motd + if ! [ -e $file.orig ]; then + cp $file $file.orig # shellcheck disable=SC2016 - echo 'mv /etc/motd.orig /etc/motd' | - insert_into_file /sbin/setup-disk after 'mount -t \$ROOTFS \$root_dev "\$SYSROOT"' - fi + echo "mv "\$mnt$file.orig" "\$mnt$file"" | + insert_into_file /sbin/setup-disk before 'cleanup_chroot_mounts "\$mnt"' - cat </etc/motd + cat <$file Reinstalling... To view logs run: tail -fn+1 /reinstall.log EOF + fi +} umount_all() { dirs="/os /iso /wim /installer /nbd /nbd-boot /nbd-efi /root" @@ -455,8 +470,11 @@ insert_into_file() { } install_alpine() { - hack_lowram=true - if $hack_lowram; then + hack_lowram_modloop=true + hack_lowram_swap=true + mount / -o remount,size=100% + + if $hack_lowram_modloop; then # 预先加载需要的模块 if rc-service modloop status; then modules="ext4 vfat nls_utf8 nls_cp437 crc32c" @@ -468,39 +486,30 @@ install_alpine() { # 删除 modloop ，释放内存 rc-service modloop stop rm -f /lib/modloop-lts /lib/modloop-virt - - # 复制一份原版，防止再次运行时出错 - if [ -e /sbin/setup-disk.orig ]; then - cp -f /sbin/setup-disk.orig /sbin/setup-disk - else - cp -f /sbin/setup-disk /sbin/setup-disk.orig - fi - - # 格式化系统分区、mount 后立即开启 swap - # shellcheck disable=SC2016 - insert_into_file /sbin/setup-disk after 'mount -t \$ROOTFS \$root_dev "\$SYSROOT"' <>/mnt/etc/fstab -EOF fi - # scaleway block volume optimal_io_size 是 4M - # setup-disk 用 sfdisk 从 1M 开始分区 - # 但 cfdisk 只能按 optimal_io_size 对齐分区，因此报错 - # 将 start 置空，则自动对齐到 optimal_io_size - # https://oss.oracle.com/~mkp/docs/linux-advanced-storage.pdf - if [ -f /sys/block/$xda/queue/optimal_io_size ] && - [ "$(cat /sys/block/$xda/queue/optimal_io_size)" -gt $((1024 * 1024)) ]; then - sed -i 's/start=1M/start=/' /sbin/setup-disk + # bios机器用 setup-disk 自动分区会有 boot 分区 + # 因此手动分区安装 + create_part + + # 挂载系统分区 + if is_efi || is_xda_gt_2t; then + os_part_num=2 + else + os_part_num=1 + fi + mkdir -p /os + mount -t ext4 /dev/${xda}*${os_part_num} /os + + # 挂载 efi + if is_efi; then + mkdir -p /os/boot/efi + mount -t vfat /dev/${xda}*1 /os/boot/efi + fi + + # 创建 swap + if $hack_lowram_swap; then + create_swap 256 /os/swapfile fi # 网络 @@ -625,12 +634,35 @@ EOF setup-apkrepos -1 fi + # 修复3.16安装后无法引导 + # https://github.com/alpinelinux/alpine-conf/commit/bc7aeab868bf4d94dde2ff5d6eb97daede5975b9 + if grep -F '3.16' /etc/alpine-release; then + file=/sbin/setup-disk + if ! [ -e $file.orig ]; then + cp $file $file.orig + # shellcheck disable=SC2016 + echo 'apk add --quiet $(select_bootloader_pkg)' | + insert_into_file $file after '# install to given mounted root' + fi + fi + # 安装到硬盘 # alpine默认使用 syslinux (efi 环境除外)，这里强制使用 grub，方便用脚本再次重装 KERNELOPTS="$(get_ttys console=)" export KERNELOPTS export BOOTLOADER="grub" - printf 'y' | setup-disk -m sys -k $kernel_flavor -s 0 /dev/$xda + printf 'y' | setup-disk -m sys -k $kernel_flavor /os + + # 是否保留 swap + if [ -e /os/swapfile ]; then + if false; then + echo "/swapfile swap swap defaults 0 0" >>/os/etc/fstab + ln -sf /etc/init.d/swap /os/etc/runlevels/boot/swap + else + swapoff -a + rm /os/swapfile + fi + fi } get_http_file_size_to() { @@ -770,6 +802,39 @@ create_part() { mkfs.ext4 -F -L os /dev/$xda*1 #1 os mkfs.ext4 -F -L installer /dev/$xda*2 #2 installer fi + elif [ "$distro" = alpine ]; then + if is_efi; then + # efi + parted /dev/$xda -s -- \ + mklabel gpt \ + mkpart '" "' fat32 1MiB 101MiB \ + mkpart '" "' ext4 101MiB 100% \ + set 1 boot on + update_part /dev/$xda + + mkfs.fat /dev/$xda*1 #1 efi + mkfs.ext4 -F /dev/$xda*2 #2 os + elif is_xda_gt_2t; then + # bios > 2t + parted /dev/$xda -s -- \ + mklabel gpt \ + mkpart '" "' ext4 1MiB 2MiB \ + mkpart '" "' ext4 2MiB 100% \ + set 1 bios_grub on + update_part /dev/$xda + + echo #1 bios_boot + mkfs.ext4 -F /dev/$xda*2 #2 os + else + # bios + parted /dev/$xda -s -- \ + mklabel msdos \ + mkpart primary ext4 1MiB 100% \ + set 1 boot on + update_part /dev/$xda + + mkfs.ext4 -F /dev/$xda*1 #1 os + fi else # 安装红帽系或ubuntu # 对于红帽系是临时分区表，安装时除了 installer 分区，其他分区会重建为默认的大小 @@ -826,6 +891,12 @@ create_part() { fi update_part /dev/$xda + + # alpine 删除分区工具，防止 256M 小机爆内存 + # setup-disk /dev/sda 会保留格式化工具，我们也保留 + if [ "$distro" = alpine ]; then + apk del parted + fi } mount_pseudo_fs() { @@ -1213,17 +1284,26 @@ modify_os_on_disk() { error_and_exit "Can't find os partition." } +create_swap_if_ram_less_than() { + need_ram=$1 + swapfile=$2 + + phy_ram=$(get_approximate_ram_size) + swapsize=$((need_ram - phy_ram)) + if [ $swapsize -gt 0 ]; then + create_swap $swapsize $swapfile + fi +} + create_swap() { - swapfile=$1 + swapsize=$1 + swapfile=$2 + if ! grep $swapfile /proc/swaps; then - apk add util-linux - ram_size=$(lsmem -b 2>/dev/null | grep 'Total online memory:' | awk '{ print $NF/1024/1024 }') - if [ -z $ram_size ] || [ $ram_size -lt 1024 ]; then - fallocate -l 512M $swapfile - chmod 0600 $swapfile - mkswap $swapfile - swapon $swapfile - fi + fallocate -l ${swapsize}M $swapfile + chmod 0600 $swapfile + mkswap $swapfile + swapon $swapfile fi } @@ -1343,7 +1423,7 @@ install_qcow_el() { # 创建 swap rm -rf /installer/* - create_swap /installer/swapfile + create_swap 1024 /installer/swapfile # resolv.conf cp /etc/resolv.conf /os/etc/resolv.conf