Posts Tagged ‘ubuntu’

Upgrading Ubuntu 2.6.17-10 to 2.6.17.11 broke Wireless

Tuesday, April 13th, 2010

Upgrading Ubuntu 2.6.17-10 to 2.6.17.11 broke the wireless on my laptop. I use Prism 2.5 on
a Compaq Presario 2500. The following is the fix:

  1. sudo gedit /etc/modprobe.d/blacklist
  2. add the following lines:
    blacklist prism2
    blacklist prism2_pci
    blacklist hostap_pci
    blacklist hostap
  3. save and reboot

This fix is from http://www.ubuntuforums.org/showthread.php?t=358004&page=6 .

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Python and Apache on Ubuntu (Edgy)

Tuesday, April 13th, 2010

See http://ubuntuforums.org/showthread.php?t=91101

  1. apt-get install libapache2-mod-python
  2. cd /etc/apache2/mods-enabled/
  3. sudo ln -s ../mods-available/mod_python.load mod_python.load
  4. sudo nano /etc/apache2/sites-available/default
  5. Add to the <Directory /> :
    AddHandler mod_python .py
    PythonHandler mod_python.publisher
    PythonDebug On
  6. sudo /etc/init.d/apache2 restart
  7. Test using the following python script:
    def index(req):
    return “Hello Python!”

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Install phpMyAdmin on Ubuntu (Edgy)

Tuesday, April 13th, 2010
  1. apt-get install phpmyadmin
  2. Add to /etc/apache2/apache2.conf:

    Include /etc/phpmyadmin/apache.conf

  3. restart apache

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Apache .htaccess on Ubuntu (Edgy)

Tuesday, April 13th, 2010
  1. Open /etc/apache2/sites-available/default
  2. Go to section: <Directory /var/www>
  3. Change AllowOverride None –> AllowOverride AuthConfig
  4. Save and close
  5. Create following directory: /usr/local/apache/passwd/passwords
  6. htpasswd -c -s /usr/local/apache/passwd/passwords <user>
  7. Create a .htaccess file inside your secret directory
  8. Put following in .htaccess:
    AuthType Basic
    AuthName “Restricted Files”
    AuthUserFile /usr/local/apache/passwd/passwords
    Require user <user>
  9. Restart Apache: /etc/init.d/apache2 restart

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How to Clean-up Grub in Ubuntu

Tuesday, April 13th, 2010

Whenever, Ubuntu’s kernel gets updated, a new menu item is added to grub. To delete the old kernels:

  1. Remove the kernels using synaptic
  2. sudo update-grub

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Can’t read CTR while initializing i8042

Tuesday, April 13th, 2010

I installed Ubuntu 6.10 Server. When booting up, I got the following error message:

Can’t read CTR while initializing i8042

This error is caused by a bug in Ubuntu and causes the keyboard and mouse to not work.
The solution is to turn off USB Emulation in the BIOS.

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psycopg (Python module for PostgreSQL) on Ubuntu 6.10 (Edgy Eft)

Tuesday, April 13th, 2010

for psycopg 1, install python-psycopg
for psycopg 2, install python-psycopg2

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Cannot use arrow keys in VI

Tuesday, April 13th, 2010

In Ubuntu (Edgy Eft) I could not use arrow keys while in Insert Mode in VI. The solution was to set nocp in .exrc:

1. nano ~/.exrc

2. type: set nocp

3. Save and Quit

4. Use VI

nocp turns off strict vi compatibility

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