core: 使用 get-xda.sh 寻找主硬盘

debian.cfg

@@ -71,9 +71,12 @@ d-i preseed/early_command string \
   debconf-set mirror/http/hostname "$hostname"
 
 d-i partman/early_command string \
-  debconf-set partman-auto/disk "$(list-devices disk | head -n1)"; \
-
   confhome="$(grep -o 'extra\.confhome=[^ ]*' /proc/cmdline | cut -d= -f2)"; \
+
+  anna-install fdisk-udeb; \
+  xda=$(wget $confhome/get-xda.sh -O- | sh -s); \
+  debconf-set partman-auto/disk "/dev/$xda"; \
+
   ttys=$(wget $confhome/ttys.sh -O- | sh -s console=); \
   debconf-set debian-installer/add-kernel-opts "$ttys"; \
 

get-xda.sh

@@ -0,0 +1,37 @@
+#!/bin/sh
+# debian ubuntu redhat 安装模式共用此脚本
+# alpine 未用到此脚本
+
+get_all_disks() {
+    # busybox blkid 不接受任何参数
+    disks=$(blkid | cut -d: -f1 | cut -d/ -f3 | sed -E 's/p?[0-9]+$//' | sort -u)
+    # blkid 会显示 sr0，经过上面的命令输出为 sr
+    # 因此要检测是否有效
+    for disk in $disks; do
+        if [ -b "/dev/$disk" ]; then
+            echo "$disk"
+        fi
+    done
+}
+
+get_xda() {
+    main_disk="$(grep -o 'extra\.main_disk=[^ ]*' /proc/cmdline | cut -d= -f2)"
+
+    # 防止 $main_disk 为空
+    if [ -z "$main_disk" ]; then
+        return 1
+    fi
+
+    for disk in $(get_all_disks); do
+        if fdisk -l "/dev/$disk" | grep -iq "$main_disk"; then
+            echo "$disk"
+            return
+        fi
+    done
+
+    # 如果没找到，返回假的值，防止意外地格式化全部盘
+    echo 'FAKE_DISK'
+    return 1
+}
+
+get_xda

redhat.cfg

@@ -44,33 +44,17 @@ for var in $(grep -o "\b$prefix\.[^ ]*" /proc/cmdline | xargs); do
     eval "$(echo "$var" | sed -E "s/$prefix\.([^=]*)=(.*)/\1='\2'/")"
 done
 
-get_all_disks() {
+# centos7 证书链未更新，需要 --no-check-certificate
-    lsblk -rn --nodeps -o NAME,TYPE | grep 'disk$' | awk '{print $1}'
-}
-
-get_xda() {
-    # 防止 $main_disk 为空
-    if [ -z "$main_disk" ]; then
-        return
-    fi
-
-    for disk in $(get_all_disks); do
-        # shellcheck disable=SC2154
-        if fdisk -l "/dev/$disk" | grep -iq "$main_disk"; then
-            echo "$disk"
-            break
-        fi
-    done
-}
 
 # 只使用主硬盘
 include=/tmp/include-disk-only-use
-echo "ignoredisk --only-use=$(get_xda)" >$include
+xda=$(wget --no-check-certificate "$confhome/get-xda.sh" -O- | sh -s)
+echo "ignoredisk --only-use=$xda" >$include
 
 # 设置 tty
 include=/tmp/include-bootloader
 # shellcheck disable=SC2154
-console_cmdline=$(wget "$confhome/ttys.sh" -O- | sh -s console=)
+console_cmdline=$(wget --no-check-certificate "$confhome/ttys.sh" -O- | sh -s console=)
 echo "bootloader --append=\"$console_cmdline\"" >$include
 
 # 有 installer 分区，表示用了两步安装

ubuntu-storage-early.sh

@@ -1,24 +1,4 @@
 #!/bin/bash
-
-get_all_disks() {
-    lsblk -rn --nodeps -o NAME,TYPE | grep 'disk$' | awk '{print $1}'
-}
-
-get_xda() {
-    # 防止 $main_disk 为空
-    if [ -z "$main_disk" ]; then
-        return
-    fi
-
-    for disk in $(get_all_disks); do
-        # shellcheck disable=SC2154
-        if fdisk -l "/dev/$disk" | grep -iq "$main_disk"; then
-            echo "$disk"
-            break
-        fi
-    done
-}
-
 sed -i -E '/^\.{3}$/d' /autoinstall.yaml
 echo 'storage:' >>/autoinstall.yaml
 
@@ -28,12 +8,11 @@ cat <<EOF >>/autoinstall.yaml
     size: 0
 EOF
 
-xda="$(get_xda)"
-
 # 是用 size 寻找分区，number 没什么用
 # https://curtin.readthedocs.io/en/latest/topics/storage.html
 size_os=$(lsblk -bn -o SIZE /dev/disk/by-label/os)
 
+# shellcheck disable=SC2154
 if parted "/dev/$xda" print | grep '^Partition Table' | grep gpt; then
     # efi
     if [ -e /dev/disk/by-label/efi ]; then

ubuntu.yaml

@@ -27,8 +27,9 @@ autoinstall:
       done
 
       # 生成分区信息
-      export main_disk
+      xda=$(curl -L "$confhome/get-xda.sh" | sh -s)
-      curl -L $confhome/ubuntu-storage-early.sh | bash -s
+      export xda
+      curl -L "$confhome/ubuntu-storage-early.sh" | sh -s
 
       # 内核风味
       # https://bugs.launchpad.net/subiquity/+bug/1989353