BOOK/bootscripts/lfs/init.d/checkfs

   1 #!/bin/sh
   2 ########################################################################
   3 # Begin checkfs
   4 #
   5 # Description : File System Check
   6 #
   7 # Authors     : Gerard Beekmans - gerard@linuxfromscratch.org
   8 #               A. Luebke - luebke@users.sourceforge.net
   9 #               DJ Lucas - dj@linuxfromscratch.org
  10 # Update      : Bruce Dubbs - bdubbs@linuxfromscratch.org
  11 #
  12 # Version     : LFS 7.0
  13 #
  14 # Based on checkfs script from LFS-3.1 and earlier.
  15 #
  16 # From man fsck
  17 # 0    - No errors
  18 # 1    - File system errors corrected
  19 # 2    - System should be rebooted
  20 # 4    - File system errors left uncorrected
  21 # 8    - Operational error
  22 # 16   - Usage or syntax error
  23 # 32   - Fsck canceled by user request
  24 # 128  - Shared library error
  25 #
  26 #########################################################################
  27
  28 ### BEGIN INIT INFO
  29 # Provides:            checkfs
  30 # Required-Start:      udev swap
  31 # Should-Start:
  32 # Required-Stop:
  33 # Should-Stop:
  34 # Default-Start:       S
  35 # Default-Stop:
  36 # Short-Description:   Checks local filesystems before mounting.
  37 # Description:         Checks local filesystmes before mounting.
  38 # X-LFS-Provided-By:   LFS
  39 ### END INIT INFO
  40
  41 . /lib/lsb/init-functions
  42
  43 case "${1}" in
  44    start)
  45       if [ -f /fastboot ]; then
  46          msg="/fastboot found, will omit "
  47          msg="${msg} file system checks as requested.\n"
  48          log_info_msg "${msg}"
  49          exit 0
  50       fi
  51
  52       log_info_msg "Mounting root file system in read-only mode... "
  53       mount -n -o remount,ro / >/dev/null
  54
  55       if [ ${?} != 0 ]; then
  56          log_failure_msg2
  57          msg="\n\nCannot check root "
  58          msg="${msg}filesystem because it could not be mounted "
  59          msg="${msg}in read-only mode.\n\n"
  60          msg="${msg}After you press Enter, this system will be "
  61          msg="${msg}halted and powered off.\n\n"
  62          log_failure_msg "${msg}"
  63
  64          log_info_msg "Press Enter to continue..."
  65          wait_for_user
  66          /etc/rc.d/init.d/halt stop
  67       else
  68          log_success_msg2
  69       fi
  70
  71       if [ -f /forcefsck ]; then
  72          msg="/forcefsck found, forcing file"
  73          msg="${msg} system checks as requested."
  74          log_success_msg "$msg"
  75          options="-f"
  76       else
  77          options=""
  78       fi
  79
  80       log_info_msg "Checking file systems..."
  81       # Note: -a option used to be -p; but this fails e.g. on fsck.minix
  82       if is_true "$VERBOSE_FSCK"; then
  83         fsck ${options} -a -A -C -T
  84       else
  85         fsck ${options} -a -A -C -T >/dev/null
  86       fi
  87
  88       error_value=${?}
  89
  90       if [ "${error_value}" = 0 ]; then
  91          log_success_msg2
  92       fi
  93
  94       if [ "${error_value}" = 1 ]; then
  95          msg="\nWARNING:\n\nFile system errors "
  96          msg="${msg}were found and have been corrected.\n"
  97          msg="${msg}      You may want to double-check that "
  98          msg="${msg}everything was fixed properly."
  99          log_warning_msg "$msg"
 100       fi
 101
 102       if [ "${error_value}" = 2 -o "${error_value}" = 3 ]; then
 103          msg="\nWARNING:\n\nFile system errors "
 104          msg="${msg}were found and have been been "
 105          msg="${msg}corrected, but the nature of the "
 106          msg="${msg}errors require this system to be rebooted.\n\n"
 107          msg="${msg}After you press enter, "
 108          msg="${msg}this system will be rebooted\n\n"
 109          log_failure_msg "$msg"
 110
 111          log_info_msg "Press Enter to continue..."
 112          wait_for_user
 113          reboot -f
 114       fi
 115
 116       if [ "${error_value}" -gt 3 -a "${error_value}" -lt 16 ]; then
 117          msg="\nFAILURE:\n\nFile system errors "
 118          msg="${msg}were encountered that could not be "
 119          msg="${msg}fixed automatically.\nThis system "
 120          msg="${msg}cannot continue to boot and will "
 121          msg="${msg}therefore be halted until those "
 122          msg="${msg}errors are fixed manually by a "
 123          msg="${msg}System Administrator.\n\n"
 124          msg="${msg}After you press Enter, this system will be "
 125          msg="${msg}halted and powered off.\n\n"
 126          log_failure_msg "$msg"
 127
 128          log_info_msg "Press Enter to continue..."
 129          wait_for_user
 130          /etc/rc.d/init.d/halt stop
 131       fi
 132
 133       if [ "${error_value}" -ge 16 ]; then
 134          msg="FAILURE:\n\nUnexpected failure "
 135          msg="${msg}running fsck.  Exited with error "
 136          msg="${msg} code: ${error_value}.\n"
 137          log_info_msg $msg
 138          exit ${error_value}
 139       fi
 140
 141       exit 0
 142       ;;
 143    *)
 144       echo "Usage: ${0} {start}"
 145       exit 1
 146       ;;
 147 esac
 148
 149 # End checkfs