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https://github.com/bin456789/reinstall.git
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支持重装到 debian
This commit is contained in:
bin456789
132
reinstall.sh
132
reinstall.sh
@ -3,7 +3,7 @@ confhome=https://raw.githubusercontent.com/bin456789/reinstall/main
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localtest_confhome=http://192.168.253.1
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usage_and_exit() {
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echo "Usage: reinstall.sh centos-7/8/9 alma-8/9 rocky-8/9 fedora-36/37/38 ubuntu-20.04/22.04 alpine-3.16/3.17/3.18"
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echo "Usage: reinstall.sh centos-7/8/9 alma-8/9 rocky-8/9 fedora-36/37/38 ubuntu-20.04/22.04 alpine-3.16/3.17/3.18 debian-10/11"
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exit 1
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}
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@ -20,11 +20,8 @@ setos() {
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local step=$1
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local distro=$2
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local releasever=$3
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local ks=$4
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setos_alpine() {
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eval ${step}_distro=$distro
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if [ "$localtest" = 1 ]; then
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mirror=$confhome/alpine-netboot-3.17.3-x86_64/boot
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eval ${step}_vmlinuz=$mirror/vmlinuz-lts
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@ -45,10 +42,32 @@ setos() {
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fi
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}
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setos_debian() {
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if [ "$localtest" = 1 ]; then
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mirror=$confhome/debian/install.amd
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eval ${step}_vmlinuz=$mirror/vmlinuz
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eval ${step}_initrd=$mirror/initrd.gz
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else
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case "$releasever" in
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12) codename=bookworm ;;
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11) codename=bullseye ;;
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10) codename=buster ;;
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esac
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if is_in_china; then
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hostname=ftp.cn.debian.org
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else
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hostname=deb.debian.org
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fi
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mirror=http://$hostname/debian/dists/$codename/main/installer-$basearch_alt/current/images/netboot/debian-installer/$basearch_alt
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eval ${step}_vmlinuz=$mirror/linux
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eval ${step}_initrd=$mirror/initrd.gz
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fi
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eval ${step}_ks=$confhome/preseed.cfg
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}
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setos_ubuntu() {
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if [ "$localtest" = 1 ]; then
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mirror=$confhome/
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eval ${step}_ks=$confhome/$ks
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else
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if is_in_china; then
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case "$basearch" in
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@ -61,23 +80,16 @@ setos() {
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"aarch64") mirror=https://cdimage.ubuntu.com/releases/$releasever/release/ ;;
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esac
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fi
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eval ${step}_ks=$confhome/user-data
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fi
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case "$basearch" in
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"x86_64") arch=amd64 ;;
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"aarch64") arch=arm64 ;;
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esac
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filename=$(curl $mirror | grep -oP "ubuntu-$releasever.*?-live-server-$arch.iso" | head -1)
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filename=$(curl $mirror | grep -oP "ubuntu-$releasever.*?-live-server-$basearch_alt.iso" | head -1)
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eval ${step}_iso=$mirror$filename
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eval ${step}_distro=ubuntu
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eval ${step}_ks=$confhome/user-data
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}
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setos_redhat() {
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if [ "$localtest" = 1 ]; then
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mirror=$confhome/$releasever/
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eval ${step}_ks=$confhome/$ks
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else
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case $distro in
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"centos")
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@ -95,8 +107,7 @@ setos() {
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mirror=$(curl -L $mirrorlist | sed "/^#/d" | sed "/anigil/d" | head -1 | sed "s,\$basearch,$basearch,")
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eval "${step}_mirrorlist='${mirrorlist}'"
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fi
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eval ${step}_ks=$confhome/$ks
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eval ${step}_distro=${distro}
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eval ${step}_ks=$confhome/ks.cfg
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eval ${step}_vmlinuz=${mirror}images/pxeboot/vmlinuz
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eval ${step}_initrd=${mirror}images/pxeboot/initrd.img
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eval ${step}_squashfs=${mirror}images/install.img
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@ -106,21 +117,26 @@ setos() {
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fi
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}
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eval ${step}_distro=$distro
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case "$distro" in
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ubuntu) setos_ubuntu ;;
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alpine) setos_alpine ;;
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debian) setos_debian ;;
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*) setos_redhat ;;
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esac
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}
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# 检查是否为正确的系统名
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verify_os_string() {
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for os in 'centos-7|8|9' 'alma|rocky-8|9' 'fedora-36|37|38' 'ubuntu-20.04|22.04' 'alpine-3.16|3.17|3.18'; do
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for os in 'centos-7|8|9' 'alma|rocky-8|9' 'fedora-36|37|38' 'ubuntu-20.04|22.04' 'alpine-3.16|3.17|3.18' 'debian-10|11|12'; do
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ds=$(echo $os | cut -d- -f1)
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vers=$(echo $os | cut -d- -f2 | sed 's \. \\\. g')
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finalos=$(echo "$@" | tr '[:upper:]' '[:lower:]' | sed -n -E "s,^($ds)[ :-]?($vers)$,\1:\2,p")
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if [ -n "$finalos" ]; then
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distro=$(echo $finalos | cut -d: -f1)
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if [ "$distro" = centos ] || [ "$distro" = alma ] || [ "$distro" = rocky ]; then
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distro_like=redhat
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fi
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releasever=$(echo $finalos | cut -d: -f2)
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return
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fi
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@ -138,6 +154,8 @@ apt_install() {
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install_pkg() {
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pkgs=$*
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for pkg in $pkgs; do
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# util-linux 用 lsmem 命令测试
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[ "$pkg" = util-linux ] && pkg=lsmem
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if ! command -v $pkg; then
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{
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apt_install $pkgs ||
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@ -152,6 +170,28 @@ install_pkg() {
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done
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}
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check_ram() {
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# lsmem最准确但centos7 arm 和alpine不能用
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# arm 24g dmidecode 显示少了128m
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install_pkg util-linux
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ram_size=$(lsmem -b 2>/dev/null | grep 'Total online memory:' | awk '{ print $NF/1024/1024 }')
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if [ -z $ram_size ]; then
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install_pkg dmidecode
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ram_size=$(dmidecode -t 17 | grep "Size.*[GM]B" | awk '{if ($3=="GB") s+=$2*1024; else s+=$2} END {print s}')
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fi
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case "$distro" in
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alpine) ram_requirement=0 ;; # 未测试
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debian) ram_requirement=384 ;;
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*) ram_requirement=1024 ;;
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esac
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if [ $ram_size -lt $ram_requirement ]; then
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echo "Could not install $distro: RAM < $ram_requirement MB."
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exit 1
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fi
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}
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# 脚本入口
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if [ "$EUID" -ne 0 ]; then
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echo "Please run as root."
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@ -190,38 +230,27 @@ if [ -f /etc/alpine-release ]; then
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apk add grep
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fi
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# 获取内存大小，lsmem最准确但centos7 arm 和alpine不能用
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# arm 24g dmidecode 显示少了128m
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if [ $distro != "alpine" ]; then
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install_pkg util-linux
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ram_size=$(lsmem -b 2>/dev/null | grep 'Total online memory:' | awk '{ print $NF/1024/1024 }')
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if [ -z $ram_size ]; then
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install_pkg dmidecode
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ram_size=$(dmidecode -t 17 | grep "Size.*[GM]B" | awk '{if ($3=="GB") s+=$2*1024; else s+=$2} END {print s}')
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fi
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if [ $ram_size -lt 1024 ]; then
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echo 'RAM < 1G. Unsupported.'
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exit 1
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fi
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fi
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check_ram
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basearch=$(uname -m)
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case "$basearch" in
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"x86_64") basearch_alt=amd64 ;;
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"aarch64") basearch_alt=arm64 ;;
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esac
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# 以下目标系统需要进入alpine环境安装
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# ubuntu/alpine
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# el8/9/fedora 任何架构 <2g
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# el7 aarch64 <1.5g
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if [ $distro = "ubuntu" ] ||
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[ $distro = "alpine" ] ||
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{ [ $releasever -ge 8 ] && [ $ram_size -lt 2048 ]; } ||
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{ [ $releasever -eq 7 ] && [ $ram_size -lt 1536 ] && [ $basearch = "aarch64" ]; }; then
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[ $distro = "ubuntu" ] && ks=user-data || ks=ks.cfg
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if [ "$distro" = "ubuntu" ] ||
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[ "$distro" = "alpine" ] ||
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{ [ "$distro_like" = "redhat" ] && [ $releasever -ge 8 ] && [ $ram_size -lt 2048 ]; } ||
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{ [ "$distro_like" = "redhat" ] && [ $releasever -eq 7 ] && [ $ram_size -lt 1536 ] && [ $basearch = "aarch64" ]; }; then
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# 安装alpine时，使用指定的版本。 alpine作为中间系统时，使用 3.18
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[ $distro = "alpine" ] && alpine_releasever=$releasever || alpine_releasever=3.18
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setos finalos $distro $releasever $ks
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[ "$distro" = "alpine" ] && alpine_releasever=$releasever || alpine_releasever=3.18
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setos finalos $distro $releasever
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setos nextos alpine $alpine_releasever
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else
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setos nextos $distro $releasever ks.cfg
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setos nextos $distro $releasever
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fi
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# 下载启动内核
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@ -229,11 +258,10 @@ fi
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{
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cd /
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echo $nextos_vmlinuz
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curl -Lo vmlinuz $nextos_vmlinuz
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curl -Lo reinstall-vmlinuz $nextos_vmlinuz
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echo $nextos_initrd
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curl -Lo initrd $nextos_initrd
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touch reinstall.mark
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curl -Lo reinstall-initrd $nextos_initrd
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}
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# 转换 finalos_a=1 为 finalos.a=1 ，排除 finalos_mirrorlist
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@ -289,7 +317,7 @@ if [ -n "$finalos_cmdline" ]; then
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rm -rf $tmp_dir
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mkdir -p $tmp_dir
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cd $tmp_dir
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zcat /initrd | cpio -idm
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zcat /reinstall-initrd | cpio -idm
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# hack
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# exec /bin/busybox switch_root $switch_root_opts $sysroot $chart_init "$KOPT_init" $KOPT_init_args # 3.17
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@ -309,7 +337,7 @@ EOF
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# -c Identical to "-H newc", use the new (SVR4)
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# portable format.If you wish the old portable
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# (ASCII) archive format, use "-H odc" instead.
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find . | cpio -o -H newc | gzip -1 >/initrd
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find . | cpio -o -H newc | gzip -1 >/reinstall-initrd
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# 删除临时文件
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cd /
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@ -320,7 +348,11 @@ EOF
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# apkovl=sda2:ext4:/apkovl.tar.gz 官方有写但不生效
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cmdline="alpine_repo=$nextos_repo modloop=$nextos_modloop $extra_cmdline $finalos_cmdline "
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else
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cmdline="root=live:$nextos_squashfs inst.ks=$nextos_ks $extra_cmdline"
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if [ $distro = debian ]; then
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cmdline="lowmem=+1 lowmem/low=1 auto=true priority=critical url=$nextos_ks"
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else
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cmdline="root=live:$nextos_squashfs inst.ks=$nextos_ks $extra_cmdline"
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fi
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fi
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custom_cfg=$grub_cfg_dir/custom.cfg
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@ -329,9 +361,9 @@ cat <<EOF | tee $custom_cfg
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menuentry "reinstall" {
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insmod lvm
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insmod xfs
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search --no-floppy --file --set=root /reinstall.mark
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linux$efi /vmlinuz $cmdline
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initrd$efi /initrd
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search --no-floppy --file --set=root /reinstall-vmlinuz
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linux$efi /reinstall-vmlinuz $cmdline
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initrd$efi /reinstall-initrd
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}
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EOF
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