Author Archives: Kenny

Install softwares on Linux using YUM

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*Step # 1: Configure yum
Code:
/etc/yum.conf
[base]
name=Fedora Core $releasever - $basearch - Base
baseurl=http://apt.sw.be/fedora/$releasever/en/$basearch/dag
baseurl=http://mirrors.kernel.org/fedora/core/$releasever/$basearch/os
Save the file. Install GPG signature key with rpm command:
Code:
# rpm --import http://dag.wieers.com/packages/RPM-GPG-KEY.dag.txt
——————–
*Step # 2 Update your package list:
Code:
# yum check-update
===============
*Step # 3 start to use yum
Install a new package called foo
# yum install foo
===============
To update packages
# yum update
To update a single package called bar
# yum update bar
To remove a package called telnet
# yum remove telnet
To list all packages
# yum list installed
===============
You can search using grep command
# yum list installed | grep samba
Display information on a package called foo
===============
To display list of packages for which updates are available
# yum list updates
===============
clean all cahced packages:
# yum clean packages
To remove all cached packages and old headers:
# yum clean all
Force a fresh download of package
# yum clean headers
# yum clean oldheaders

Aspireone the noisy fan hack

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  • Download the acer_ec.pl script.
  • Download the acerfand daemon script.

    • Execute these lines in a terminal in the directory you downloaded the above scripts:
    chmod a+x acerfand
    sudo cp acer_ec.pl acerfand /usr/local/bin/
    To run it straight away:
    sudo acerfand
    To run it at boot:
    In Ubuntu:
    gksu gedit /etc/rc.local
    Insert the following line above the “exit 0” at the bottom:
    /usr/local/bin/acerfand
    In Linpus Linux Lite: (default Aspire One installation)
    As root :
    vi /etc/rc.local
    Press i to switch to INSERT mode and add the following line at the bottom :
    /usr/local/bin/acerfand
    Press Esc and type :wq to save and quit
    Optionally create an /etc/acerfand.conf file. The file is just a shell script that sets up to three values. eg:
    INTERVAL=5
    FANOFF=60
    FANAUTO=70
    Those are the default values, if the /etc/acerfand.conf file isn’t found.
    INTERVAL is the polling interval in seconds
    FANOFF is the temperature at or below which to turn the fan off, if it’s currently on auto
    FANAUTO is the temperature at or above which to turn the fan to auto, if it’s currently off.
    ==========
    Read all registers:
    sudo perl acer_ec.pl regs
    sudo perl acer_ec.pl regs > test.txt
    Read one register:
    # 51 is the address of the register in hexadecimal
    sudo perl acer_ec.pl ?= 51
    Write value to one register:
    # 51 is the address in hexadecimal of the register to be written, and 0 is the value to write, also in hexadecimal.
    sudo perl acer_ec.pl := 51 0

    Convenient commandline to monitor the temperature. (Register 58 is thought to be CPU temperature, in degrees C):
    This also assumes you’re already root and have made acer_ec.pl executable. eg:
    # Become root
    sudo su -
    # Make the script executable
    chmod a+x acer_ec.pl
    # Read the temperature and display in decimal every 2 seconds
    watch -n 2 'echo Temp: $[$(./acer_ec.pl ?= 58 | cut -f 3 -d" ")] C'

    NB: For this to work, /bin/sh must invoke bash. Usually /bin/sh is a symlink to /bin/bash, but in Ubuntu this is not the default, and as a result the conversion of the temperature from hexadecimal to decimal won’t occur.

    To change /bin/sh to point to /bin/bash, on Ubuntu, as root:
    ln -sfn /bin/bash /bin/sh

    SQL server 2005 express would not start

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    Go to Windows control panel -> Performance and maintenance -> Administrative tools -> Services ->right click on SQLEXPRESS -> Properties -> Under Logon tab check Local logon and allow interact with local services.

    It the above doe not work then
    go to my SQL Server data folder via windows explorer (mine was: C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQL), select all the files, right click, click advanced, UNCHECK, “Compress contents to save disk space”.