Author name: Manuel Bogner

Since kernel version 3.2 my network driver doesn’t compile anymore. I downloaded the latest version from Realtek and made the following change in r8168_n.c: addr = ((void *) page_address(frag->page)) + frag->page_offset; to addr = ((void *) page_address(&frag->page)) + frag->page_offset; After this change the driver compiled and worked again.  

To compile your own kernel you can follow these steps sudo su cd /usr/src wget http://www.kernel.org/pub/linux/kernel/v3.0/linux-3.2.1.tar.bz2 tar -xf linux-3.2.1.tar.bz2 cd linux-3.2.1 # if you dont have already installed these apt-get install build-essential kernel-package # use local config to get a kernel based on actual configuration make localmodconfig # always use available cores + 1 for

I have the problem, that ubuntu uses the wrong driver for my ethernet card, so I have to use a self compiled driver. After compiling the driver I got a file r8168.ko that is automatically copied to /lib/modules/`uname -r`/kernel/drivers/net/. So far so good. The problem is, that the module is not found by modprobe. Therefore

User userA and userB want to share a single screen session and see what the other user is typing. This is very handy for some showcases. UserA starts a new screen session with screen -S shared Then userA allows other users to connect to the shell with CTRL-A and :multiuser on Last userA has to

on local webservers without specific domain I often came over the stated apache warning. Here is how to get rid of it: Check your /etc/hosts that there are entries for localhost, localhost.domainname, hostname, hostname.domainname. Last edit /etc/apache2/httpd.conf and add ServerName hostname to the file. Restart apache root@coding:~# hostname –fqd coding root@coding:~# head -n2 /etc/hosts 127.0.0.1  

perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = “de_AT.UTF-8”, LC_ALL = “de_DE.UTF-8”, LC_MESSAGES = “de_DE.UTF-8”, LC_COLLATE = “de_DE.UTF-8”, LC_CTYPE = “de_DE.UTF-8”, LANG = “de_AT.UTF-8” are supported and installed on your system. perl: warning: Falling back to the standard locale (“C”). Or during apt operations: locale: Cannot set LC_CTYPE

If you got used to bash completion under ubuntu and want this feature under debian too, you first have to install the package bash-completion with your favourite package manager. apt-get install bash-completion Then add the following to your /etc/profile to enable the feature for all users: if [ -f /etc/bash_completion ]; then . /etc/bash_completion fi

After adding a new apt repository to your sources.list you often get a gpg error that there is no public key for that repository. If you trust the added server you can add the key with the command stated below. Here is an example error message. I replaced the id of the key with <long_key>: