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

demetris wrote:
They were from an ubuntu 12.04 OS. You guys have to find a matchable pair for Debian Wheezy.

Nope.
"Us guys" [ReadyNAS Ultra 6] don't need to install any modules, they're available in the kernel (I'm on an Ultra 6).
Check dmesg | grep coretemp it87, the modules are there.

What you need to do first is the following:

apt-get update && apt-get -y upgrade
apt-get install lm-sensors fancontrol

Then edit /etc/fancontrol via vi or nano or whatever to be as such:

INTERVAL=5
DEVPATH=hwmon0=devices/platform/coretemp.0 hwmon1=devices/platform/it87.2576
DEVNAME=hwmon0=coretemp hwmon1=it8721
FCTEMPS= hwmon1/device/pwm3=hwmon1/device/temp3_input
FCFANS= hwmon1/device/pwm3=hwmon1/device/fan3_input
MINTEMP= hwmon1/device/pwm3=51
MAXTEMP= hwmon1/device/pwm3=58
MINSTART= hwmon1/device/pwm3=40
MINSTOP= hwmon1/device/pwm3=40
MINPWM= hwmon1/device/pwm3=40
MAXPWM= hwmon1/device/pwm3=150

Then:

reboot

Then, create & chmod 755 a file called /bin/fan-monitor with the following contents:

#!/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/pwm3"             # pwm file

# misc
dt=$(date +"%F %R")                                         # get timestamp for logging
email_address="<your_email>"
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 ${list[2]} | cut -f3 -d' ' | grep -P -o "[0-9.]+" | cut -f1 -d'.')     # sensors cpu0 temperature
cpu1=$(echo ${list[3]} | cut -f3 -d' ' | grep -P -o "[0-9.]+" | cut -f1 -d'.')     # sensors cpu1 temperature
fan=$(echo ${list[18]}  | cut -f3 -d' ')                                           # sensors fan speed
fan_min=$(echo ${list[18]}  | cut -f7 -d' ')                                       # sensors minimum fan speed

# read pwm values
pwm=$(cat $pwm_file)                                        # pwm value from pwm file
pwm_min=40                                                  # known minimum value
pwm_max=255                                                 # known maximum value

# determine cpu with highest temperature
cpu=0
cpu_name=""
if ((cpu0 >= cpu1))
then
    cpu=$cpu0
    cpu_name="CPU0"
else
    cpu=$cpu1
    cpu_name="CPU1"
fi

# 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 < 40)); then
    new_pwm=$pwm_min
elif ((cpu > 70)); then
    new_pwm=$pwm_max
else
    let new_pwm=($cpu-40)*10+40
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

Change <your_email> to your own email address.

And then edit crontab by typing

crontab -e

and adding the following line:

* * * * * /bin/fan-monitor > /dev/null

This will monitor the CPU temps for both Atom cores & adjust the fan speeds accordingly (for an Ultra 6) & send email when things get out of hand.

It doesn't make frontview display the correct fan speed though, need to figure out how to do that still.
I've finally come around to updating my RN Ultra 6's FW with 3 weeks delay. It's syncing the array right now, will play with it some more this weekend.

A BIG, ++MEGA++ thank you goes out to all the people who made it possible to run NG's latest FW on our legacy devices!!
You know... those devices that are perfectly capable from a HW POV, but were supposedly not eligible for running this firmware according to Netgear...
Too bad we don't get to post metal-smileys here, but you guys rock! \m/

If anyone might have some tips on how to make frontview report correct fan speeds for an Ultra 6, I'm all ears, thanks! :-)