1,574 reputation
59
bio website
location Berlin, Germany
age 28
visits member for 2 years
seen Nov 11 '13 at 11:40

I am a freelance computer programmer and system administrator hanging out in several Linux User Groups in and near Berlin, mostly LinuxWorks! and Nerd-Cafe. My jobs involve working for the Free Software Foundation Europe and for several places involved with the education of children.

On the side I have been involved in short movie projects and I am coauthoring a german language video podcast about GNU/Linux and Free Software. Watch the podcast on http://gnufunzt.de.

On stackexchange I have been most active on askubuntu.com, though I am really a Debian user and a stick-in-the-mud proponent of old-school Unix philosphy.

I started programming at a rather young age, and I am a strong advocate for Free Software.


Oct
21
comment Can't access local network when connect to pppoe
Well, gertvdijk is of course right, the output of route -n would be helpful and we do not have a whole lot of information here. Now it is 5 days later, would you really consider posting the output?
Oct
20
comment “sudo update-grub” doesn't work
The formating in the first lines of the file seems pretty messed up. There must not be more than one option per line. The error message does not reflect this though and there might be something else wrong in addition.
Oct
20
comment Should I use a separate 'admin' user as my “root sudo” or grant sudo to my 'app' user?
If you are using Ubuntu the root user is already "nullified" - or unable to log in. Basically its password field is simply locked. You can do the same in any other GNU/Linux distribution, though there might be some situations where some service, i.e. cups insists you provide the password for a root user (which is bad if this password is unusable). Should you run into those situations you can always reactivate a root password temporarily. See man 1 passwd and man 5 passwd for some hints on best practice.
Oct
20
comment why Ubuntu command prompt is not prompting after executing the mail command?
Odd..., after rereading the man page, maybe use a plain echo to make sure the input ends with a newline, before stdin for the mail program is closed: (cat body.txt; uuencode text.txt; echo) |mail -s "hai" "[email protected]"
Oct
19
comment Some keys act as a arrows or type numbers
Is this in the upper right corner of your keyboard a "scroll lock" key? If so, it could also have to do with this behaviour.
Oct
19
comment Some keys act as a arrows or type numbers
It is not clear to me from your highlighting, what you have run in the terminal. You should not run run 'numlockx off', instead run numlockx off - without the "run" and without the quotation marks. ...sorry if this sounds stupid, I just want to make sure that your mistake is not there
Oct
19
comment Bought a new WD 1TB Elements USB3, I wanted to install Xubuntu 12.04 in it but it just won't work?
The 4k alignment thing is not an issue. Ubuntu should work well with this and even if it doesn't the disk access would only slow down. You have done well by choosing sector 2048 as the beginning of the first partition. I think we can safely exclude this as a problem source.
Oct
19
comment Where could I found a simple view of Ubuntu's architecture?
Considering that your question cannot be answered easily, the graphic is a good start. Though it contains some ... "deceptive marketing"... (Ubuntu One, in the core, srsly). You might want to look up the GNU Operating System in Wikipedia. Gnome isn't there because Ubunutu uses Unity as a desktop, not Gnome. Both are based on the GTK-Toolkit though and share some applications, that's why you hear Gnome mentioned sometimes. Also Gnome is common on other GNU/Linux Distributions than Ubuntu. Grub is the Bootloader which loads Linux, on this graphic you could put it into the Core section.
Nov
2
comment How to make users with UID under 1000 appear in LightDM?
Oh wait, I think what Achu meant was modifying the MacOS user. This would probably be the cleanest solution. Don't forget to chown all the files of the Mac-User afterwards, so they belong to the new UserID.
Nov
2
comment How to make users with UID under 1000 appear in LightDM?
No you don't want to renumber the user. this would simply remove it from LightDMs display as well. What you are looking for is some parameter of the lightDM configuration in your /etc or maybe /etc/xorg directory. I don't have lightdm installed currently, so I can't tell you which one.
Nov
2
comment Sharing NTFS on start-up
Oh, yes, of course /dev/sdc1 would have been correct, like in the command line call from your question. But using the UUID is better anyway, because it is independent from the order in which disks are initialized. Thanks for editing.
Nov
2
comment How to watch a video on every workspace?
OK I was beeing cynical here. Let me state for the record that I find the workflow and UI concept of both, Unity and Gnome3 pretty well designed and overall reasonable. Especially when watching non-technical users handeling those desktops. I don't care so much for some parts of the technical foundation of those two, but that's a completely different matter and urelated to the problem discussed here.
Nov
2
comment How to watch a video on every workspace?
No it's not suitable for this task, Xephyr lets you start a completely new Desktop Session, inside your Session. But since Unity puts every program to fullscreen, Xephyr would also be fullscreened, which kind of limits the usefullness here.
Nov
1
comment Printer Add button not enabled
well yeah, this obviously was the reason, since the printer setup utilities use http connections to localhost to configure the printing system, and you where redirecting all http traffic over a server in ... India... btw. are you aware of that? If not, who asked you to do this?
Nov
1
comment How does the Ubuntu upgrade process work?
I think all you will find on the internet about the dependency hell are complaints. Read your apt man pages, like man apt-get. I find it is often useful to use the release specifying command syntax like apt-get -t intrepid install foo/jaunty bar/oneiric etc..., just examples. Actually this makes more sense with Debian where you sometimes mix releases, under Ubuntu this is less customary. Interesting topics could also be apt-pinning and setting packages on hold.
Nov
1
comment Can you help diagnose why this laptop running Ubuntu has crashed and seemingly died
I believe on the Ubuntu installation CD, in the first bootmenu, probably a submenu of this, you should find a utility named memtest86 which will check if your RAM is faulty somewhere. But like Sergey I'd rather go for the HDD or SATA-controller, the latter one is unfortunately not interchangable in a Laptop.
Oct
31
comment Defaulting internet requests to wlan0 when also connected to eth0
With the described setup every Device connected to the cable interface of your computer would be routed to the internet whenever the computer itself has any kind of internet connection. From the fact that you set up and configured a DHCP server yourself I assume that you know at least basic facts about TCP/IP setup and routing.
Oct
31
comment Quantal analyzes the HD in any boot
what about maximum mount counts? A check can be mount-count based or interval based, as you said correctly the latter is not the case here.
Oct
31
comment How does the Ubuntu upgrade process work?
No, the chroot mechanism is not used during the system upgrade. The upgrade is performed on the live file system. You can even watch your program menus beeing rebuilt and program icons change as they are being replaced. But the chroot mechanism is used in an original system installation, when a fresh system is "debootstrapped" into a change root environment on a newly created disk partiton.
Oct
31
comment Defaulting internet requests to wlan0 when also connected to eth0
Just for clarification... you have some cable clients attached to the network on eth0 and to those you want to provide an internet connection, which is accessed on wlan0. So the machine we are talking about functions as router.