Remount onie-boot if necessary

builds/any/installer/installer.sh.in

@@ -399,10 +399,26 @@ installer_mkchroot "${rootdir}"
 mkdir -p "${rootdir}/mnt/installer"
 mount -o ro,bind "${installer_dir}" "${rootdir}/mnt/installer"
 
-# make the onie boot files available to the chroot
-mkdir -p "${rootdir}/mnt/onie-boot"
-if test -d "/mnt/onie-boot"; then
-  mount -o ro,bind "/mnt/onie-boot" "${rootdir}/mnt/onie-boot"
+# make sure onie-boot is mounted
+if test -d /mnt/onie-boot; then
+  if grep -q " /mnt/onie-boot " /proc/mounts; then
+    :
+  else
+    ONIE_BOOT_DEVICE=
+    visit_blkid blkid_find_onie
+    if test -b "$ONIE_BOOT_DEVICE"; then
+      installer_say "Mounting ONIE-BOOT ($ONIE_BOOT_DEVICE) as /mnt/onie-boot"
+      mount -o defaults,rw $ONIE_BOOT_DEVICE /mnt/onie-boot
+    else
+      installer_say "*** missing ONIE-BOOT device"
+    fi
+  fi
+
+  if grep -q " /mnt/onie-boot " /proc/mounts; then
+    # make the onie boot files available to the chroot
+    mkdir -p "${rootdir}/mnt/onie-boot"
+    mount -o ro,bind "/mnt/onie-boot" "${rootdir}/mnt/onie-boot"
+  fi
 fi
 
 # generate config for installer environment

packages/base/all/vendor-config-onl/src/lib/install/lib.sh

@@ -123,6 +123,53 @@ installer_mkchroot() {
   fi
 }
 
+visit_blkid()
+{
+  local fn rest
+  fn=$1; shift
+  rest="$@"
+
+  local ifs
+  ifs=IFS; IFS=$CR
+  for line in $(blkid); do
+    IFS=$ifs
+
+    local dev
+    dev=${line%%:*}
+    line=${line#*:}
+
+    local TYPE LABEL PARTLABEL UUID PARTUUID
+    while test "$line"; do
+      local key
+      key=${line%%=*}
+      line=${line#*=}
+      case "$line" in
+        '"'*)
+          line=${line#\"}
+          val=${line%%\"*}
+          line=${line#*\"}
+          line=${line## }
+        ;;
+        *)
+          val=${line%% *}
+          line=${line#* }
+        ;;
+      esac
+      eval "$key=\"$val\""
+    done
+
+    local sts
+    eval $fn \"$dev\" \"$LABEL\" \"$UUID\" \"$PARTLABEL\" \"$PARTUUID\" $rest
+    sts=$?
+    if test $sts -eq 2; then break; fi
+    if test $sts -ne 0; then return $sts; fi
+
+  done
+  IFS=$ifs
+
+  return 0
+}
+
 # Local variables
 # mode: sh
 # sh-basic-offset: 2