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https://github.com/bin456789/reinstall.git
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alpine: 手动分区
This commit is contained in:
bin456789
parent
2a2c608d19
commit
ec295b6379
184
trans.sh
184
trans.sh
@ -143,9 +143,22 @@ setup_nginx() {
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fi
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}
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get_approximate_ram_size() {
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# lsmem 需要 util-linux
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if is_have_cmd lsmem; then
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ram_size=$(lsmem -b 2>/dev/null | grep 'Total online memory:' | awk '{ print $NF/1024/1024 }')
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fi
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if [ -z $ram_size ]; then
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ram_size=$(free -m | awk '{print $2}' | sed -n '2p')
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fi
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echo "$ram_size"
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}
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setup_nginx_if_enough_ram() {
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total_ram=$(free -m | awk '{print $2}' | sed -n '2p')
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# 避免后面没内存安装程序，谨慎起见，512内存才安装
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total_ram=$(get_approximate_ram_size)
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# 512内存才安装
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if [ $total_ram -gt 400 ]; then
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# lighttpd 虽然运行占用内存少，但安装占用空间大
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# setup_lighttpd
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@ -215,18 +228,20 @@ qemu_nbd() {
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mod_motd() {
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# 安装后 alpine 后要恢复默认
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# 自动安装失败后，可能手动安装 alpine，因此无需判断 $distro
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if ! [ -e /etc/motd.orig ]; then
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cp /etc/motd /etc/motd.orig
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file=/etc/motd
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if ! [ -e $file.orig ]; then
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cp $file $file.orig
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# shellcheck disable=SC2016
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echo 'mv /etc/motd.orig /etc/motd' |
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insert_into_file /sbin/setup-disk after 'mount -t \$ROOTFS \$root_dev "\$SYSROOT"'
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fi
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echo "mv "\$mnt$file.orig" "\$mnt$file"" |
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insert_into_file /sbin/setup-disk before 'cleanup_chroot_mounts "\$mnt"'
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cat <<EOF >/etc/motd
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cat <<EOF >$file
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Reinstalling...
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To view logs run:
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tail -fn+1 /reinstall.log
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EOF
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fi
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}
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umount_all() {
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dirs="/os /iso /wim /installer /nbd /nbd-boot /nbd-efi /root"
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@ -455,8 +470,11 @@ insert_into_file() {
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}
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install_alpine() {
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hack_lowram=true
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if $hack_lowram; then
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hack_lowram_modloop=true
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hack_lowram_swap=true
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mount / -o remount,size=100%
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if $hack_lowram_modloop; then
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# 预先加载需要的模块
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if rc-service modloop status; then
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modules="ext4 vfat nls_utf8 nls_cp437 crc32c"
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@ -468,39 +486,30 @@ install_alpine() {
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# 删除 modloop ，释放内存
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rc-service modloop stop
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rm -f /lib/modloop-lts /lib/modloop-virt
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# 复制一份原版，防止再次运行时出错
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if [ -e /sbin/setup-disk.orig ]; then
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cp -f /sbin/setup-disk.orig /sbin/setup-disk
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else
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cp -f /sbin/setup-disk /sbin/setup-disk.orig
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fi
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# 格式化系统分区、mount 后立即开启 swap
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# shellcheck disable=SC2016
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insert_into_file /sbin/setup-disk after 'mount -t \$ROOTFS \$root_dev "\$SYSROOT"' <<EOF
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fallocate -l 1G /mnt/swapfile
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chmod 0600 /mnt/swapfile
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mkswap /mnt/swapfile
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swapon /mnt/swapfile
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rc-update add swap boot
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EOF
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# 安装完成后写入 swapfile 到 fstab
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# shellcheck disable=SC2016
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insert_into_file /sbin/setup-disk after 'install_mounted_root "\$SYSROOT" "\$disks"' <<EOF
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echo "/swapfile swap swap defaults 0 0" >>/mnt/etc/fstab
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EOF
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fi
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# scaleway block volume optimal_io_size 是 4M
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# setup-disk 用 sfdisk 从 1M 开始分区
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# 但 cfdisk 只能按 optimal_io_size 对齐分区，因此报错
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# 将 start 置空，则自动对齐到 optimal_io_size
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# https://oss.oracle.com/~mkp/docs/linux-advanced-storage.pdf
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if [ -f /sys/block/$xda/queue/optimal_io_size ] &&
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[ "$(cat /sys/block/$xda/queue/optimal_io_size)" -gt $((1024 * 1024)) ]; then
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sed -i 's/start=1M/start=/' /sbin/setup-disk
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# bios机器用 setup-disk 自动分区会有 boot 分区
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# 因此手动分区安装
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create_part
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# 挂载系统分区
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if is_efi || is_xda_gt_2t; then
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os_part_num=2
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else
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os_part_num=1
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fi
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mkdir -p /os
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mount -t ext4 /dev/${xda}*${os_part_num} /os
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# 挂载 efi
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if is_efi; then
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mkdir -p /os/boot/efi
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mount -t vfat /dev/${xda}*1 /os/boot/efi
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fi
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# 创建 swap
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if $hack_lowram_swap; then
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create_swap 256 /os/swapfile
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fi
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# 网络
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@ -625,12 +634,35 @@ EOF
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setup-apkrepos -1
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fi
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# 修复3.16安装后无法引导
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# https://github.com/alpinelinux/alpine-conf/commit/bc7aeab868bf4d94dde2ff5d6eb97daede5975b9
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if grep -F '3.16' /etc/alpine-release; then
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file=/sbin/setup-disk
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if ! [ -e $file.orig ]; then
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cp $file $file.orig
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# shellcheck disable=SC2016
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echo 'apk add --quiet $(select_bootloader_pkg)' |
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insert_into_file $file after '# install to given mounted root'
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fi
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fi
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# 安装到硬盘
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# alpine默认使用 syslinux (efi 环境除外)，这里强制使用 grub，方便用脚本再次重装
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KERNELOPTS="$(get_ttys console=)"
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export KERNELOPTS
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export BOOTLOADER="grub"
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printf 'y' | setup-disk -m sys -k $kernel_flavor -s 0 /dev/$xda
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printf 'y' | setup-disk -m sys -k $kernel_flavor /os
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# 是否保留 swap
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if [ -e /os/swapfile ]; then
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if false; then
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echo "/swapfile swap swap defaults 0 0" >>/os/etc/fstab
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ln -sf /etc/init.d/swap /os/etc/runlevels/boot/swap
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else
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swapoff -a
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rm /os/swapfile
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fi
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fi
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}
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get_http_file_size_to() {
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@ -770,6 +802,39 @@ create_part() {
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mkfs.ext4 -F -L os /dev/$xda*1 #1 os
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mkfs.ext4 -F -L installer /dev/$xda*2 #2 installer
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fi
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elif [ "$distro" = alpine ]; then
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if is_efi; then
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# efi
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parted /dev/$xda -s -- \
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mklabel gpt \
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mkpart '" "' fat32 1MiB 101MiB \
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mkpart '" "' ext4 101MiB 100% \
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set 1 boot on
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update_part /dev/$xda
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mkfs.fat /dev/$xda*1 #1 efi
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mkfs.ext4 -F /dev/$xda*2 #2 os
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elif is_xda_gt_2t; then
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# bios > 2t
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parted /dev/$xda -s -- \
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mklabel gpt \
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mkpart '" "' ext4 1MiB 2MiB \
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mkpart '" "' ext4 2MiB 100% \
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set 1 bios_grub on
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update_part /dev/$xda
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echo #1 bios_boot
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mkfs.ext4 -F /dev/$xda*2 #2 os
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else
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# bios
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parted /dev/$xda -s -- \
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mklabel msdos \
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mkpart primary ext4 1MiB 100% \
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set 1 boot on
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update_part /dev/$xda
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mkfs.ext4 -F /dev/$xda*1 #1 os
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fi
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else
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# 安装红帽系或ubuntu
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# 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
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@ -826,6 +891,12 @@ create_part() {
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fi
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update_part /dev/$xda
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# alpine 删除分区工具，防止 256M 小机爆内存
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# setup-disk /dev/sda 会保留格式化工具，我们也保留
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if [ "$distro" = alpine ]; then
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apk del parted
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fi
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}
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mount_pseudo_fs() {
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@ -1213,17 +1284,26 @@ modify_os_on_disk() {
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error_and_exit "Can't find os partition."
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}
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create_swap_if_ram_less_than() {
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need_ram=$1
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swapfile=$2
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phy_ram=$(get_approximate_ram_size)
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swapsize=$((need_ram - phy_ram))
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if [ $swapsize -gt 0 ]; then
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create_swap $swapsize $swapfile
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fi
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}
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create_swap() {
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swapfile=$1
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swapsize=$1
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swapfile=$2
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if ! grep $swapfile /proc/swaps; then
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apk add util-linux
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ram_size=$(lsmem -b 2>/dev/null | grep 'Total online memory:' | awk '{ print $NF/1024/1024 }')
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if [ -z $ram_size ] || [ $ram_size -lt 1024 ]; then
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fallocate -l 512M $swapfile
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chmod 0600 $swapfile
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mkswap $swapfile
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swapon $swapfile
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fi
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fallocate -l ${swapsize}M $swapfile
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chmod 0600 $swapfile
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mkswap $swapfile
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swapon $swapfile
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fi
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}
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@ -1343,7 +1423,7 @@ install_qcow_el() {
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# 创建 swap
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rm -rf /installer/*
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create_swap /installer/swapfile
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create_swap 1024 /installer/swapfile
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# resolv.conf
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cp /etc/resolv.conf /os/etc/resolv.conf
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