Personal Computer World 2007 September/PCWSEP07.iso/Software/Linux/Linux Mint 3.0 Light/LinuxMint-3.0-Light.iso/casper/filesystem.squashfs/etc/init.d/hdparm

Text File | 2005-04-21 | 5.0 KB | 278 lines

#!/bin/sh

set -e

. /lib/lsb/init-functions
. /etc/default/rcS

#In certian cases you may wish to run this script twice.  Once at S07
#and once later in the boot process. If you do this call /etc/init.d/hdparm
#again from rcS.d with a name such as S27hdparm.second.
#
#See /usr/share/doc/hdparm/README.Debian for more details.

case "$0" in
  *hdparm)
    FIRST=yes
    ;;
  *)
    FIRST=no
    ;;
esac

MYNAME="$0"

report()
{
  echo "${MYNAME}: $*"
}

report_error()
{
  echo "${MYNAME}: Error: $*" >&2
}

report_error_and_exit()
{
  report_error "$*.  Exiting."
  exit 1
}

case $1 in
  start|restart|reload|force-reload)
    ;;
  stop)
    exit 0
    ;;
  *)
    log_success_msg "Usage: $0 {stop|start|restart|reload|force-reload}"
    exit 1
    ;;
esac

if grep -w -q "nohdparm" /proc/cmdline ; then
  log_success_msg "Skipping setup of disc parameters as specified..."
  exit 0
fi

raidstat=OK
if [ -e /proc/mdstat ]; then
  if grep -iq resync /proc/mdstat; then
    raidstat=RESYNC
  fi
elif [ -e /proc/rd/status ]; then
  raidstat=`cat /proc/rd/status`
fi

if ! [ "$raidstat" = 'OK' ]; then
  log_warning_msg "RAID status not OK.  Exiting."
  exit 0
fi

log_begin_msg "Setting disc parameters..."

DISC=
DEFAULT=
OPTIONS=
DEF_QUIET=
OPT_QUIET=

#  set_option() adds $1 to the $OPTIONS list if in a disk stanza
#             and adds $1 to the $DEFAULT list if not in a disk stanza
#
#  the block beginning:
#        if test x${i%${i#??}} != x${1%${1#??}}; then
#  checks to see if $1 is already in the list and
#    if so removes the first instance

set_option()
{
  if test -n "$DISC"; then
    NEW_OPT=
    for i in $OPTIONS; do
      if test x${i%${i#??}} != x${1%${1#??}}; then
        NEW_OPT="$NEW_OPT $i"
      else
        NEW_OPT=${NEW_OPT%-q}
      fi
    done
    OPTIONS="$NEW_OPT $OPT_QUIET $1"
  else
    NEW_DEF=
    for i in $DEFAULT; do
      if test x${i%${i#??}} != x${1%${1#??}}; then
        NEW_DEF="$NEW_DEF $i"
      else
        NEW_DEF=${NEW_DEF%-q}
      fi
    done
    DEFAULT="$NEW_DEF $DEF_QUIET $1"
  fi
}

eval_value()
{
  case $1 in
    off|0)
      set_option "$2"0
       ;;
    on|1)
      set_option "$2"1
      ;;
    *)
      return 1
      ;;
  esac
}

# Get blocks as far as the drive's write cache.
/bin/sync

# Set options for a group of disks in /etc/default/hdparm
[ -e /etc/default/hdparm ] && . /etc/default/hdparm

if [ -n "$harddisks" -a -n "$hdparm_opts" ]; then
  for drive in $harddisks; do
    /sbin/hdparm -q -f $drive
    hdparm -q $hdparm_opts -q $drive
    [ "$VERBOSE" != no ] && log_success_msg "Found enabled disk: $drive"
  done
fi

egrep -v '^[[:space:]]*(#|$)' /etc/hdparm.conf | while read KEY SEP VALUE; do
 if [ "$NEXT_LINE" != 'go' ]; then
  case $SEP in
    '{')
       case $KEY in
         command_line)
           NEXT_LINE=go
           unset DISC
           unset OPTIONS
           unset OPT_QUIET
           ;;
         *)
           DISC=$KEY
           OPTIONS=$DEFAULT
           OPT_QUIET=$DEF_QUIET
           WAS_RUN=0
           ;;
       esac
       ;;
    =)
       case $KEY in
         read_ahead_sect)
       set_option -a$VALUE
       ;;
     lookahead)
       eval_value $VALUE -A
       ;;
     bus)
       eval_value $VALUE -b
       ;;
     apm)
       set_option -B$VALUE
       ;;
     io32_support)
       set_option -c$VALUE
       ;;
     dma)
       eval_value $VALUE -d
       ;;
     defect_mana)
       eval_value $VALUE -D
       ;;
     cd_speed)
       set_option -E$VALUE
       ;;
     mult_sect_io)
       set_option -m$VALUE
       ;;
     prefetch_sect)
       set_option -P$VALUE
       ;;
     read_only)
       eval_value $VALUE -r
       ;;
     spindown_time)
       set_option -S$VALUE
       ;;
     interrupt_unmask)
       eval_value $VALUE -u
       ;;
     write_cache)
       eval_value $VALUE -W
       ;;
     transfer_mode)
       set_option -X$VALUE
       ;;
     acoustic_management)
       set_option -M$VALUE
       ;;
         keep_settings_over_reset)
           eval_value $VALUE -k
          ;;
         keep_features_over_reset)
           eval_value $VALUE -K
          ;;
         chipset_pio_mode)
           set_option -p$VALUE
          ;;
     *)
       log_failure_msg "Unknown option $KEY!"
       exit 1
       ;;
       esac
    ;;
    "")
       case $KEY in
         })
       if [ -z "$DISC" ]; then
             if [ "$WAS_RUN" != 1 ]; then
           log_failure_msg "No disk enabled. Exiting..."
           exit 1
             fi
       fi
       if [ -n "$OPTIONS" ]; then
         # Flush the drive's internal write cache to the disk.
         /sbin/hdparm -q -f $DISC

         /sbin/hdparm $OPTIONS $DISC
         [ "$VERBOSE" != no ] && log_success_msg "Found enabled disk: $DISC"
       fi
           ;;
         quiet)
       if [ -n "$DISC" ]; then
         OPT_QUIET=-q
       else
         DEF_QUIET=-q
       fi
           ;;
         standby)
           set_option -y
       ;;
         sleep)
           set_option -Y
       ;;
         disable_seagate)
           set_option -Z
       ;;
         *)
       log_failure_msg "Unknown option $KEY!"
       exit 1
       ;;
       esac
       ;;
   *)
     log_failure_msg "Unknown separator $SEP!"
     exit 1
     ;;
  esac
else
  $KEY $SEP $VALUE
  NEXT_LINE=no-go
  WAS_RUN=1
fi
done

log_end_msg 0