Cron is a daemon used for scheduling tasks to be executed at a certain time. Each user has a crontab file, allowing them to specify actions and times that they should be executed. There is also a system crontab, allowing tasks such as log rotation and locate database updating to be done regularly.  Read more here.

-bash: crontab: command not found Oeps seems it is missing on my vm. 

To install it run:

• sudo apt-get install cron

See my worklog how I got the module configured and working with Ubuntu JeOS 8.04 and Apache2:

• sudo a2enmod rewrite
• sudo nano /etc/apache2/sites-enabled/000-default
• Change AllowOverride None to AllowOverride All for <Directory /> and <Directory /var/www/>
• sudo /etc/init.d/apache2 restart to restart Apache2 services

That’s it!

I finshed one of my JeOS virtual machines running with ESX server and cloned the JeOS virtual machine.  JeOS appliance was booted and I logged on. A bash script run to change default passwords and SSH server was re-installed to generate SSH keys; immediately after apt-get tried to install SSH server I got an error and script stopped. I run ifconfig and saw no ethernet interface on Eth0 or Eth1.

The OS did not active the eth0 interface because virtual machine has been cloned and new MAC address assigned to the network interface. In network scripts only eth0 has been enabled and set for DHCP. Open file /etc/udev/rules.d/70-persistent-net.rules to see the problem where two network interfaces are shows with diffrent MAC addresses.

To fix this problem run the following command:

• sudo rm /etc/udev/rules.d/70-persistent-net.rules

Reboot and the problem has been solved. This issue is not documented and part of the JeOS documentation yet.  I hope this post will help you out there. Credit goes to “oneloveamaru” who helped me in the right direction for finding a solution on my problem.

Start a  new terminal session and run dpkg to install the Linux version of Nero Burning Rom.

Go to Applications / Sound & Video/ Nero Linux and start the burning solution.

Pretty straight forward; right? Think about when installing Nero on Windows . First we have this 100MB+ installation source and than install the complete suite of tools; with Linux installation I get what I want.

Cannot mount volume. Error org.freedesktop.DBus.Error.AccessDenied. Details A security policy in place prevents this sender from sending this message to this recipient, see message bus configuration file….

I reboot the machine couple times; tried to find a solution though google but no real work around for this problem. I found one specific bug published for adding additional host in hosts file https://bugs.launchpad.net/ubuntu/+source/consolekit/+bug/242186, because /var/log/daemon.log was filling up with Jun 28 17:46:56 workstation1 console-kit-daemon[5892]: WARNING: Failed to acquire org.freedesktop.ConsoleKit events.

I got frustrated in getting my personal share online. The folder was sitting in one of my 500GB SATA disk. Right click and choosing mount volume did also fail. I opened a terminal and started to query my physical disks with:

Create new folder in /mnt/ named sda1 and manually mount the volume.

If you want to have the volumes automatically mount after each time you reboot than you need to add additional entries in /etc/fstab. The following lines were added in my fstab configuration. Make sure the folders are created in /mnt.

The msttcorefonts contain the following fonts:

• Andale Mono
• Arial Black
• Arial (Bold, Italic, Bold Italic)
• Comic Sans MS (Bold)
• Courier New (Bold, Italic, Bold Italic)
• Georgia (Bold, Italic, Bold Italic)
• Impact
• Times New Roman (Bold, Italic, Bold Italic)
• Trebuchet (Bold, Italic, Bold Italic)
• Verdana (Bold, Italic, Bold Italic)
• Webdings

These can be installed with running sudo apt-get install msttcorefonts .

I found a good post how to get the Lucida Grande font but than I was forced to install wine and safari applications. If you own a Windows installation and than you can copy the fonts from your C:\Windows\Fonts directory and place them /usr/share/fonts/ttf and that’s what I did.

Don’t forget to get them configured. Run sudo dpkg-reconfigure fontconfig. After restarting Firefox my blog was pretty much as on Windows.

Font is OK now, but still some things with spacing. Anyway this is how I quickly got my Windows fonts on Ubuntu Desktop 8.04 desktop machine.

Some links for Linux and Fonts

http://packages.debian.org/stable/x11/msttcorefonts

http://www.convexhull.com/mandrake_fonts.html

http://avi.alkalay.net/linux/docs/font-howto/Font.html

/tmp/vmware-tools-distrib/vmware-config.pl
The following VMware kernel modules have been found on your system that were
not installed by the VMware Installer.  Please remove them then run this
installer again.

vmnet
vmhgfs
vmblock
vmmon

Execution aborted.

I did not install any VMWare tools before, but somehow these VMWare modules were included in the ubuntu-7.10-jeos-i386.iso file. Go to following directory and remove the mentioned directories.

cd /lib/modules/2.6.22-14-virtual/ubuntu
ls
sudo rm -r vmnet/
sudo rm -r vmhgfs
sudo rm -r vmblock
sudo rm -r vmmon

That’s all. Rerun the install script.