modules.d/98usrmount/mount-usr.sh

   1 #!/bin/sh
   2 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
   3 # ex: ts=8 sw=4 sts=4 et filetype=sh
   4
   5 type info >/dev/null 2>&1 || . /lib/dracut-lib.sh
   6 type fsck_single >/dev/null 2>&1 || . /lib/fs-lib.sh
   7
   8 fsck_usr()
   9 {
  10     local _dev=$1
  11     local _fs=$2
  12     local _fsopts=$3
  13     local _fsckoptions
  14
  15     if [ -f "$NEWROOT"/fsckoptions ]; then
  16         _fsckoptions=$(cat "$NEWROOT"/fsckoptions)
  17     fi
  18
  19     if [ -f "$NEWROOT"/forcefsck ] || getargbool 0 forcefsck ; then
  20         _fsckoptions="-f $_fsckoptions"
  21     elif [ -f "$NEWROOT"/.autofsck ]; then
  22         [ -f "$NEWROOT"/etc/sysconfig/autofsck ] && . "$NEWROOT"/etc/sysconfig/autofsck
  23         if [ "$AUTOFSCK_DEF_CHECK" = "yes" ]; then
  24             AUTOFSCK_OPT="$AUTOFSCK_OPT -f"
  25         fi
  26         if [ -n "$AUTOFSCK_SINGLEUSER" ]; then
  27             warn "*** Warning -- the system did not shut down cleanly. "
  28             warn "*** Dropping you to a shell; the system will continue"
  29             warn "*** when you leave the shell."
  30             emergency_shell
  31         fi
  32         _fsckoptions="$AUTOFSCK_OPT $_fsckoptions"
  33     fi
  34
  35     fsck_single "$_dev" "$_fs" "$_fsopts" "$_fsckoptions"
  36 }
  37
  38 mount_usr()
  39 {
  40     local _dev _mp _fs _opts _rest _usr_found _ret _freq _passno
  41     # check, if we have to mount the /usr filesystem
  42     while read _dev _mp _fs _opts _freq _passno; do
  43         [ "${_dev%%#*}" != "$_dev" ] && continue
  44         if [ "$_mp" = "/usr" ]; then
  45             case "$_dev" in
  46                 LABEL=*)
  47                     _dev="$(echo $_dev | sed 's,/,\\x2f,g')"
  48                     _dev="/dev/disk/by-label/${_dev#LABEL=}"
  49                     ;;
  50                 UUID=*)
  51                     _dev="${_dev#block:}"
  52                     _dev="/dev/disk/by-uuid/${_dev#UUID=}"
  53                     ;;
  54             esac
  55             if strstr "$_opts" "subvol=" && \
  56                 [ "${root#block:}" -ef $_dev ]
  57                 [ -n "$rflags" ]; then
  58                 # for btrfs subvolumes we have to mount /usr with the same rflags
  59                 _opts="${_opts:+${_opts},}${rflags}"
  60             elif getargbool 0 ro; then
  61                 # if "ro" is specified, we want /usr to be mounted read-only
  62                 _opts="${_opts:+${_opts},}ro"
  63             elif getargbool 0 rw; then
  64                 # if "rw" is specified, we want /usr to be mounted read-write
  65                 _opts="${_opts:+${_opts},}rw"
  66             fi
  67             echo "$_dev ${NEWROOT}${_mp} $_fs ${_opts} $_freq $_passno"
  68             _usr_found="1"
  69             break
  70         fi
  71     done < "$NEWROOT/etc/fstab" >> /etc/fstab
  72
  73     if [ "x$_usr_found" != "x" ]; then
  74         # we have to mount /usr
  75         _fsck_ret=0
  76         if ! getargbool 0 rd.skipfsck; then
  77             if [ "0" != "${_passno:-0}" ]; then
  78                 fsck_usr "$_dev" "$_fs" "$_opts"
  79                 _fsck_ret=$?
  80                 [ $_fsck_ret -ne 255 ] && echo $_fsck_ret >/run/initramfs/usr-fsck
  81             fi
  82         fi
  83
  84         info "Mounting /usr with -o $_opts"
  85         mount "$NEWROOT/usr" 2>&1 | vinfo
  86
  87         if ! ismounted "$NEWROOT/usr"; then
  88             warn "Mounting /usr to $NEWROOT/usr failed"
  89             warn "*** Dropping you to a shell; the system will continue"
  90             warn "*** when you leave the shell."
  91             emergency_shell
  92         fi
  93     fi
  94 }
  95
  96 if [ -f "$NEWROOT/etc/fstab" ]; then
  97     mount_usr
  98 fi