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Archive for the ‘Ubuntu’ Category

MythNetTV-Status Page

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I wrote a little script the other day so I could sporadically check on the progress and last downloaded shows of mythnettv on my mythtv-box.  The package “mythnettv-gui” sets up a nice cronjob that creates a log file, which my script uses to deliver the information. You can download the script here.

All you have to do is put the script in place and tell your system with crontab -e to execute it every now and then:

# m h  dom mon dow   command

* * * * * /usr/local/bin/mythnetstatus.py

For the lazy reader here is a complete set of commands, just copy-paste in a terminal to download and set everything up:

wget http://content.wuala.com/contents/Eubolist_/www/mythnetstatus.zip?dl=1 && mv mythnetstatus.zip?dl=1 mythnetstatus.zip && unzip mythnetstatus.zip && sudo mv mythnetstatus.py /usr/local/bin && sudo cp var/www/mythnettv-status /var/www && rm -Rf var && crontab -l > cron.tmp && echo “* * * * * /usr/local/bin/mythnetstatus.py” >> cron.tmp && crontab cron.tmp && rm cron.tmp

Written by eubolist

2010/12/24 at 12:36

A simple way to enable .py Python CGI scripts on Lighttpd (“Lighty”) webserver on Ubuntu

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After multiple, failed, attempts with mod_fastcgi I found a simple three step solution to enable python scripts on my webserver:

  1. sudo ln -s /etc/lighttpd/conf-available/10-cgi.conf /etc/lighttpd/conf-enabled/
  2. Add the following section to your /etc/lighttpd/lighttpd.conf file:
    ### Python Config ###
    cgi.assign = (

    “.py” => “/usr/bin/python”
    )
  3. Restart lighty: sudo /etc/init.d/lighttpd restart


That should do the trick. As it says in the title, this is a simple and painless way to enable Python CGI scripts on lighty.

Written by eubolist

2010/06/13 at 15:06

AnkiMiniSync Version 0.1, an ‘offline’ sync script for AnkiMini (on the iPad)

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Since I didn’t want to use the Anki Online service to sync AnkiMini on my jailbroken iPad and Anki on my Laptop I always had to copy the recent version from/to my iPad over ssh (sshfs). To automate that task a bit and save me some time I wrote this little sync script. It basically compares the two .anki decks in the local and the remote folder and replaces the older with the newer version. It does however -NOT- read the .anki file and merge the files properly. That means you can only work on one machine and then have to sync before you start working on the other one. It also means working on more than one mobile device is not possible (well, it’s possible but you’ll lose data through the sync process).
There are still some restrictions in this first version:
-Your username and directory where the Anki deck is stored must not contain any whitespaces (will be hopefully be solved in v.0.2)
-You can only sync one deck at a time (functionality to sync whole folders is planned for v.0.2)
-The .anki folder must be directly in the mounted directory of the sshfs volume
-You should have public key authentification turned on
-As far as I know this script only works on *nix systems, I have only tested it on OSX so far
If you encounter any bugs or problems besides the above don’t hesitate and write a comment! Don’t write any bug reports in the Anki support forums or to the developers of Anki (or AnkiMini), they have nothing to do with this.
Contributions to the code are always welcome of course. You are also allowed to use the code or parts of the code anywhere else, though it’d be nice to notify me somewhere along the way.
AnkiMiniSync IconLink to ankiminisync-0.1.py

Howto: Create a bootable Linux USB flash drive (USB-stick) in Mac OSX

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For Windows and Linux there’s UNetbootin, in OSX you have to rely on the terminal to create your USB flash drive.

Step 1: Download the image of the distro you want to use. In my case XUbuntu 10.04.

Step2: If there is data that you still need on your flash drive, save it on your desktop or somewhere else on your harddrive. I created a folder ‘Data’ on my desktop.

Step3: Open a terminal and type in mount . This should give you a list of mounted drives on your Mac, like this:

eubolists-macbook-pro:~ eubolist$ mount
/dev/disk0s2 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
/dev/disk0s3 on /Volumes/BOOTCAMP (fusefs, local, synchronous)
/dev/disk1s2 on /Volumes/Time Machine-Backups (hfs, local, nodev, nosuid, journaled)
/dev/disk3 on /Volumes/8GB DRIVE (msdos, local, nodev, nosuid, noowners) <– This is the one we want
Step 4: Unmount the drive: diskutil umountDisk /dev/disk3 Of course you may have to change disk3 to whatever disk your flash drive is.
Step 5: Write the image: dd if=/Users/eubolist/Downloads/xubuntu-10.04-desktop-i386.iso of=/dev/disk3 bs=1m
Again, change the command as needed. The path to your image is in all probability different as well as the path to your flash drive.
Now you should see the light of your flash drive flashing and after a while an output that looks similar like the following:

681+1 records in
681+1 records out
714168320 bytes transferred in 225.925632 secs (3161077 bytes/sec)

If that’s the case, congrats! You should have a bootable flash drive now. If you want to, you can create another partition if you have enough space and put the data saved earlier in Step 2 back on your usb drive now.
NOTE: If you have an older PC it might still not boot from your flash drive, even if you did everything well. Some older BIOSes just don’t support booting from USB flash drives.

Written by eubolist

2010/05/24 at 19:42

Ubuntu Lucid Lynx 10.04 LTS is out!!

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Download the newest Ubuntu long term support (LTS) release on http://releases.ubuntu.com/releases/10.04/. If possible choose a torrent download to save Canonical some server bandwidth and you some time.

Tests about the new Ubuntu will be on my blog soon!

Written by eubolist

2010/04/30 at 22:18

Ubuntu 10.04 LTS (Lucid Lynx) Beta 2 released

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Ubuntu 10.04 Beta 2 Has just been released. Why don’t you head over to http://releases.ubuntu.com/10.04/ and download a copy?

If you want to upgrade your existing Ubuntu installation to the newest Beta version type “gksu update-manager -d” in a terminal.

Written by eubolist

2010/04/08 at 15:01

Howto: Ubuntu Lucid Lynx Beta 1 Encrypt System Partition using Live CD

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In case the alternate installation doesn’t work for you (there have been some bugs reported in the current Beta 1 version) or you only downloaded the Desktop CD and now suddenly decided to install Ubuntu on an encrypted partition, this is the right guide for you. If you just like pretty GUIs that’s okay too, but be aware that for this tutorial you should be comfortable working from the terminal. (though most of this tutorial you can just copy – paste into a terminal window).

Let’s start by installing lvm2 on your live system (the desktop cd doesn’t have that by default), open a terminal and type:

sudo su

aptitude update && aptitude install lvm2

If that fails check your network connection. You need a working internet connection to download the package. Now you need to set up (at least) two partitions:

  • /dev/sda1: an unencrypted /boot partition (around 250 MB) and
  • /dev/sda2: one encrypted LVM volume for your / filesystem and swap.

In your system it may be /dev/sdb or whatever you choose: Adjust the following commands to your system configuration:

cryptsetup -c aes-xts-plain -s 512 luksFormat /dev/sda2

When choosing a password take a long, safe password which is not prone to dictionary or brute force attacks. But also make sure you won’t forget it – if you forget your password all your files and settings will be lost.

cryptsetup luksOpen /dev/sda2 lvm

pvcreate /dev/mapper/lvm

vgcreate ubuntu /dev/mapper/lvm

lvcreate -L 1300M -n swap ubuntu

You can change the size of the swap partition, usually a value 1.3-1.5x your RAM size is fine.

lvcreate -l 100%FREE -n root ubuntu

If you want more than one partition (eg. a seperate /home partition) don’t use 100%FREE but the value you wish and define the additional partitions using the above scheme before proceeding to the next step.

mkswap /dev/mapper/ubuntu-swap

mkfs.ext4 /dev/mapper/ubuntu-root

Now start the installation process (don’t close the terminal yet, we’ll need it later). In the partitioning step choose /dev/mapper/ubuntu-root -> Mount point: / and reformat the partition with ext4. Choose /dev/sda1 -> Mount point: /boot and also reformat the partition.

Then continue your installation. On my system it wasn’t able to install the bootloader – don’t worry, we’ll fix that later, just continue with the installation. Once it’s finished don’t restart the system: Close the window and go to the terminal again.

mount /dev/mapper/ubuntu-root /mnt
mount /dev/sdX1 /mnt/boot
mount -o rbind /dev /mnt/dev
mount -t proc proc /mnt/proc
mount -t sysfs sys /mnt/sys
chroot /mnt

Now you’re chrooted in your new installation and able to modify it in order to boot into the encrypted partition. Install the necessary software:

aptitude install cryptsetup lvm2

Then you need to write the UUID of the encrypted partition into /etc/crypttab

echo “lvm UUID=VOLUME_ID none luks” >> /etc/crypttab

You can find out the volume id by typing blkid /dev/sda2 in your terminal. Lastly you need to update the initramfs with

update-initramfs -u -k all

If you were able to install the bootloader grub during the installation process you’re done now, you can exit the terminal and reboot. If not there are three more commands you need to run before exiting:

aptitude install grub2

grub-install /dev/sda

update-grub

If all went well you have a 10.04 installation with an encrypted system drive now. Congratulations!

NOTE: The last part of this tutorial (chrooting plus installing grub) may also serve as a workaround if you encounter any problems or bugs setting up grub during the regular installation process.

Written by eubolist

2010/04/05 at 18:51