mirror of
https://github.com/bin456789/reinstall.git
synced 2025-01-19 12:49:14 +08:00
166 lines
5.0 KiB
INI
166 lines
5.0 KiB
INI
# shellcheck disable=SC2148
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rescue --nomount
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%pre
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exec >/dev/pts/0 2>&1
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download() {
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if command -v axel; then
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[ -z $2 ] && save="" || save="-o $2"
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axel $1 $save
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else
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[ -z $2 ] && save="-O" || save="-o $2"
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curl -L $1 $save
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fi
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}
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update_part() {
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partprobe
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partx -u $1
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udevadm settle
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}
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# 找到主硬盘
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xda=$(lsblk -dn -o NAME | grep -E 'nvme0n1|.da')
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# 反激活 lvm
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vgchange -an
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# 移除 lsblk 显示的分区
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partx -d /dev/$xda
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disk_size=$(blockdev --getsize64 /dev/$xda)
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disk_2t=$((2 * 1024 * 1024 * 1024 * 1024))
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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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# 对于ubuntu是最终分区表，因为 ubuntu 的安装器不能调整个别分区，只能重建整个分区表
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# {xda}*1 星号用于 nvme0n1p1 的字母 p
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if [ -d /sys/firmware/efi ]; then
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# efi
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parted /dev/$xda -s -- \
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mklabel gpt \
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mkpart '" "' fat32 1MiB 1025MiB \
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mkpart '" "' ext4 1025MiB -2GiB \
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mkpart '" "' ext4 -2GiB 100% \
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set 1 boot on
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update_part /dev/$xda
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mkfs.fat -F 32 -n efi /dev/${xda}*1 #1 efi
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mkfs.ext4 -L os /dev/${xda}*2 #2 os
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mkfs.ext4 -L installer /dev/${xda}*3 #3 installer
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elif [ "$disk_size" -ge "$disk_2t" ]; then
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# bios 2t
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parted /dev/$xda -s -- \
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mklabel gpt \
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mkpart '" "' ext4 1MiB 2MiB \
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mkpart '" "' ext4 2MiB -2GiB \
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mkpart '" "' ext4 -2GiB 100% \
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set 1 bios_grub on
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update_part /dev/$xda
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echo #1 bios_boot
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mkfs.ext4 -L os /dev/${xda}*2 #2 os
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mkfs.ext4 -L installer /dev/${xda}*3 #3 installer
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else
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# bios
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parted /dev/$xda -s -- \
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mklabel msdos \
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mkpart primary ext4 1MiB -2GiB \
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mkpart primary ext4 -2GiB 100% \
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set 1 boot on
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update_part /dev/$xda
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mkfs.ext4 -L os /dev/${xda}*1 #1 os
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mkfs.ext4 -L installer /dev/${xda}*2 #2 installer
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fi
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# 挂载主分区
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mkdir -p /os
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mount /dev/disk/by-label/os /os
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# 挂载其他分区
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mkdir -p /os/boot/efi
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mount /dev/disk/by-label/efi /os/boot/efi
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mkdir -p /os/installer
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mount /dev/disk/by-label/installer /os/installer
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# 安装 grub2
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basearch=$(uname -m)
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if [ -d /sys/firmware/efi ]; then
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# shellcheck disable=SC2164
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cd /os/boot/efi
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download https://mirrors.aliyun.com/fedora/releases/38/Everything/$basearch/os/images/efiboot.img
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mkdir /efiboot
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mount -o ro efiboot.img /efiboot
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cp -r /efiboot/* /os/boot/efi/
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else
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rpm -i --nodeps https://mirrors.aliyun.com/centos/7/os/x86_64/Packages/grub2-pc-modules-2.02-0.86.el7.centos.noarch.rpm
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grub2-install --boot-directory=/os/boot /dev/$xda
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fi
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# 安装 axel
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# rpm -i --nodeps https://mirrors.aliyun.com/epel/7/$basearch/Packages/a/axel-2.4-9.el7.$basearch.rpm
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# axel 有问题
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# axel "https://rocky-linux-us-south1.production.gcp.mirrors.ctrliq.cloud/pub/rocky//8.7/BaseOS/aarch64/os/images/pxeboot/vmlinuz"
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# Initializing download: https://rocky-linux-us-south1.production.gcp.mirrors.ctrliq.cloud/pub/rocky//8.7/BaseOS/aarch64/os/images/pxeboot/vmlinuz
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# Connection gone.
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# axel https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.229-1/virtio-win-0.1.229.iso
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# Initializing download: https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/archive-virtio/virtio-win-0.1.229-1/virtio-win-0.1.229.iso
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# Too many redirects.
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if [ -d /sys/firmware/efi ] && [ "$basearch" = "x86_64" ]; then
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action='efi'
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fi
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# 提取 finalos 到变量
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eval "$(grep -o '\bfinalos\.[^ ]*' /proc/cmdline | sed 's/finalos.//')"
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# 重新整理 extra，因为grub会处理掉引号，要重新添加引号
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for var in $(grep -o '\bextra\.[^ ]*' /proc/cmdline | xargs); do
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extra_cmdline+=" $(echo $var | sed -E "s/(extra\.[^=]*)=(.*)/\1='\2'/")"
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done
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if [ -d /sys/firmware/efi ]; then
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grub_cfg=/os/boot/efi/EFI/BOOT/grub.cfg
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else
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grub_cfg=/os/boot/grub2/grub.cfg
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fi
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# shellcheck disable=SC2154,SC2164
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if [ "$distro" = "ubuntu" ]; then
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cd /os/installer/
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download $iso ubuntu.iso
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iso_file=/ubuntu.iso
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# 正常写法应该是 ds="nocloud-net;s=https://xxx/" 但是甲骨文云的ds更优先，自己的ds根本无访问记录
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# $seed 是 https://xxx/
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cat <<EOF >$grub_cfg
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set timeout=5
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menuentry "reinstall" {
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# https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1851311
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rmmod tpm
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search --no-floppy --label --set=root installer
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loopback loop $iso_file
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linux (loop)/casper/vmlinuz iso-scan/filename=$iso_file autoinstall cloud-config-url=$ks $extra_cmdline ---
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initrd (loop)/casper/initrd
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}
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EOF
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else
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cd /os/
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download $vmlinuz
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download $initrd
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cd /os/installer/
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download $squashfs install.img
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cat <<EOF >$grub_cfg
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set timeout=5
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menuentry "reinstall" {
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search --no-floppy --label --set=root os
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linux$action /vmlinuz inst.stage2=hd:LABEL=installer:/install.img inst.ks=$ks $extra_cmdline
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initrd$action /initrd.img
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}
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EOF
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fi
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reboot
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%end
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