OS6 now works on x86 Legacy WARNING: NO NTGR SUPPORT!

I've also installed it on my brand new Ultra 4 that I got at a clearance price... At first, I had some problems adding a second drive to create a mirror (2x 2TB WD Red). It was trying to use it as a second volume with no name. I couldn't delete it because of that. I've resolved this by doing a factory reset and copying my stuff back. Now, everything is working fine. I'd really like to have the temp and the fan speed in the GUI but I can live with that for now.

In the meantime, I've adapted Royan's script to run on the Ultra 4 (single CPU, some optimizations, etc.). All credits go to him.

As usual, here is the disclaimer :
I'm not responsible of any damages caused by this script...


So, here it is :

#!/bin/bash

# log and send mail
function sendmail {
    ( echo "To:$email_address"
      echo "From:$email_address"
      echo "Subject:$host: temp-monitor: $1"
      echo
      echo "$2" ) | /usr/sbin/sendmail -t --read-envelope-from
    echo $message >> $log
}                                        

# files
lock="/tmp/.fan-monitor.lock"                               # lock file (needed?)
log="/var/log/fan-monitor.log"                              # log file
pwm_file="/sys/devices/platform/it87.2576/pwm1"             # pwm file

# misc
dt=$(date +"%F %R")                                         # get timestamp for logging
email_address="<your_email_address>"
host=`hostname`

# superuser check
if [[ $EUID -ne 0 ]]; then                                  # check if process is running as superuser
   echo $dt "This script must be run as root" >> $log       # need su to write pwm file
   exit 10
fi

# check for lock
[ -f "$lock" ] && exit                                      # exit if another instance of this script
>$lock                                                      # is writing to pwm file (not nessesary?)

# get output from sensors into an array
OLDIFS="$IFS"                                               # store current IFS
IFS=$'\n'                                                   # set IFS to newline
list=(`sensors`)                                            # populate array from sensors output
IFS="$OLDIFS"                                               # restore original IFS

# get values from array
cpu0=$(echo ${list[2]} | cut -f3 -d' ' | grep -P -o "[0-9.]+" | cut -f1 -d'.')     # sensors cpu0 temperature
fan=$(echo ${list[14]}  | cut -f2 -d' ')                                           # sensors fan speed
fan_min=$(echo ${list[14]}  | cut -f7 -d' ')                                       # sensors minimum fan speed

# read pwm values
pwm=$(cat $pwm_file)                                        # pwm value from pwm file
pwm_min=50                                                  # known minimum value
pwm_max=255                                                 # known maximum value

# determine cpu with highest temperature
cpu=0

cpu_name=""
cpu=$cpu0
cpu_name="CPU0"

# verify cpu test has returned a value
if ((cpu == 0)); then
    message="$dt: CPU test failed, cpu0: $cpu0, cpu1: $cpu1"
    sendmail "ERROR" "$message"
    rm -f $lock                                              # cleanup lock
    exit 11                                                  # exit error code
fi

# set the new pwm value for the fan speed.  
if ((cpu < 50)); then
    new_pwm=$pwm_min
elif ((cpu > 70)); then 
    new_pwm=$pwm_max 
else   
    let new_pwm=($cpu-50)*10+50
fi

# check new pwm value
if ((new_pwm == 0)); then                                   # no new pwm value = no need to do anything
    echo "$dt: OK: $cpu_name: $cpu, pwm: $pwm" >> $log      # log ok status if you want to keep track of what's happening
    rm -f $lock                                             # cleanup locks
    exit 0                                                  # exit with ok status
fi

# don't resend emails if there is no change from previous run
if ((new_pwm != pwm)); then
    # ok, now we have a new pwm value and need to set it
    command_out=$( `echo $new_pwm > $pwm_file` 2>&1 )           # write new pwm value to pwm file, and catch any output
    command_rc=$?                                               # get error codes

    uptime=$(echo `uptime`)                                     # get extra data for email

    if (( command_rc == 0)); then                               
        # no errors setting pwm.
        message="$dt: pwm changed: $pwm -> $new_pwm, $cpu_name temp: $cpu, fan: $fan uptime: $uptime"
        sendmail "Fan speed changed" "$message"
    else
        # oops, we got an error setting new pwm.
        message="$dt: ERROR setting pwm: $pwm -> $new_pwm, $cpu_name temp: $cpu, fan: $fan uptime: $uptime - ERRROR rc: $command_rc, stdout and stderr: $command_out"
        sendmail "ERROR" "$message"
    fi
fi

#cleanup locks
rm -f $lock