Initial commit

2026-04-23 17:07:55 +08:00
commit b7e39e063b
16725 changed files with 1625565 additions and 0 deletions
@@ -0,0 +1,152 @@
+#!/bin/sh
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+
+### BEGIN INIT INFO
+# Provides:          checkroot
+# Required-Start:    udev
+# Required-Stop:     
+# Default-Start:     S
+# Default-Stop:
+# Short-Description: Check to root file system.
+### END INIT INFO
+
+. /etc/default/rcS
+
+#
+# Set SULOGIN in /etc/default/rcS to yes if you want a sulogin to be spawned
+# from this script *before anything else* with a timeout, like SCO does.
+#
+test "$SULOGIN" = yes && sulogin -t 30 $CONSOLE
+
+#
+# Read /etc/fstab.
+#
+exec 9< /etc/fstab
+rootmode=rw
+rootopts=rw
+rootcheck=$ENABLE_ROOTFS_FSCK
+swap_on_md=no
+devfs=
+while read fs mnt type opts dump pass junk <&9
+do
+	case "$fs" in
+		""|\#*)
+			continue;
+			;;
+		/dev/md*)
+			# Swap on md device.
+			test "$type" = swap && swap_on_md=yes
+			;;
+		/dev/*)
+			;;
+		*)
+			# Might be a swapfile.
+			test "$type" = swap && swap_on_md=yes
+			;;
+	esac
+	test "$type" = devfs && devfs="$fs"
+	test "$mnt" != / && continue
+	rootopts="$opts"
+	test "$pass" = 0 -o "$pass" = "" && rootcheck=no
+	case "$opts" in
+		ro|ro,*|*,ro|*,ro,*)
+			rootmode=ro
+			;;
+	esac
+done
+exec 0>&9 9>&-
+
+# Check for conflicting configurations
+if [ "$rootmode" = "ro" -a "$ROOTFS_READ_ONLY" = "no" ] || \
+	[ "$rootmode" = "rw" -a "$ROOTFS_READ_ONLY" = "yes" ]; then
+	echo ""
+	echo "WARN: conflicting configurations in /etc/fstab and /etc/default/rcS"
+	echo "      regarding the writability of rootfs. Please fix one of them."
+	echo ""
+fi
+
+
+#
+# Activate the swap device(s) in /etc/fstab. This needs to be done
+# before fsck, since fsck can be quite memory-hungry.
+#
+test "$VERBOSE" != no && echo "Activating swap"
+[ -x /sbin/swapon ] && swapon -a
+
+#
+# Check the root filesystem.
+#
+if test -f /fastboot || test "$rootcheck" = "no"
+then
+  test $rootcheck = yes && echo "Fast boot, no filesystem check"
+else
+  #
+  # Ensure that root is quiescent and read-only before fsck'ing.
+  #
+  mount -n -o remount,ro /
+  if test $? = 0
+  then
+    if test -f /forcefsck
+    then
+	force="-f"
+    else
+	force=""
+    fi
+    if test "$FSCKFIX" = yes
+    then
+	fix="-y"
+    else
+	fix="-a"
+    fi
+    spinner="-C"
+    case "$TERM" in
+        dumb|network|unknown|"") spinner="" ;;
+    esac
+    test `uname -m` = s390 && spinner="" # This should go away
+    test "$VERBOSE" != no && echo "Checking root filesystem..."
+    fsck $spinner $force $fix /
+    #
+    # If there was a failure, drop into single-user mode.
+    #
+    # NOTE: "failure" is defined as exiting with a return code of
+    # 2 or larger.  A return code of 1 indicates that filesystem
+    # errors were corrected but that the boot may proceed.
+    #
+    if test "$?" -gt 1
+    then
+      # Surprise! Re-directing from a HERE document (as in
+      # "cat << EOF") won't work, because the root is read-only.
+      echo
+      echo "fsck failed.  Please repair manually and reboot.  Please note"
+      echo "that the root filesystem is currently mounted read-only.  To"
+      echo "remount it read-write:"
+      echo
+      echo "   # mount -n -o remount,rw /"
+      echo
+      echo "CONTROL-D will exit from this shell and REBOOT the system."
+      echo
+      # Start a single user shell on the console
+      /sbin/sulogin $CONSOLE
+      reboot -f
+    fi
+  else
+    echo "*** ERROR!  Cannot fsck root fs because it is not mounted read-only!"
+    echo
+  fi
+fi
+
+#
+#	If the root filesystem was not marked as read-only in /etc/fstab,
+#	remount the rootfs rw but do not try to change mtab because it
+#	is on a ro fs until the remount succeeded. Then clean up old mtabs
+#	and finally write the new mtab.
+#
+mount -n -o remount,$rootmode /
+if test "$rootmode" = rw
+then
+	ln -sf /proc/mounts /dev/mtab
+fi
+
+: exit 0