- <title>Second alpha release of Debian Edu / Skolelinux based on Debian Wheezy</title>
- <link>http://people.skolelinux.org/pere/blog/Second_alpha_release_of_Debian_Edu___Skolelinux_based_on_Debian_Wheezy.html</link>
- <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Second_alpha_release_of_Debian_Edu___Skolelinux_based_on_Debian_Wheezy.html</guid>
- <pubDate>Tue, 14 May 2013 23:30:00 +0200</pubDate>
- <description><p>The <a href="http://www.skolelinux.org/">Debian Edu / Skolelinux
-project</a> is making great progress and made its second Wheezy based
-release today. This is the release announcement:</p>
-
-<p><strong>New features for Debian Edu 7.0.0 alpha1 released
-2013-05-14</strong></p>
-
-<p>This is the release notes for for Debian Edu / Skolelinux 7.0.0 edu
-alpha1, based on Debian with codename "Wheezy".</p>
-
-<p><strong>About Debian Edu and Skolelinux</strong></p>
-
-<p>Debian Edu, also known as Skolelinux, is a Linux distribution based
-on Debian providing an out-of-the box environment of a completely
-configured school network. Immediatly after installation a school
-server running all services needed for a school network is set up just
-waiting for users and machines being added via GOsa², a comfortable
-Web-UI. A netbooting environment is prepared using PXE, so after
-initial installation of the main server from CD, DVD or USB stick all
-other machines can be installed via the network.</p>
+ <title>Testing sysvinit from experimental in Debian Hurd</title>
+ <link>http://people.skolelinux.org/pere/blog/Testing_sysvinit_from_experimental_in_Debian_Hurd.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Testing_sysvinit_from_experimental_in_Debian_Hurd.html</guid>
+ <pubDate>Mon, 3 Feb 2014 13:40:00 +0100</pubDate>
+ <description><p>A few days ago I decided to try to help the Hurd people to get
+their changes into sysvinit, to allow them to use the normal sysvinit
+boot system instead of their old one. This follow up on the
+<a href="https://teythoon.cryptobitch.de//categories/gsoc.html">great
+Google Summer of Code work</a> done last summer by Justus Winter to
+get Debian on Hurd working more like Debian on Linux. To get started,
+I downloaded a prebuilt hard disk image from
+<a href="http://ftp.debian-ports.org/debian-cd/hurd-i386/current/debian-hurd.img.tar.gz">http://ftp.debian-ports.org/debian-cd/hurd-i386/current/debian-hurd.img.tar.gz</a>,
+and started it using virt-manager.</p>
+
+<p>The first think I had to do after logging in (root without any
+password) was to get the network operational. I followed
+<a href="https://www.debian.org/ports/hurd/hurd-install">the
+instructions on the Debian GNU/Hurd ports page</a> and ran these
+commands as root to get the machine to accept a IP address from the
+kvm internal DHCP server:</p>
+
+<p><blockquote><pre>
+settrans -fgap /dev/netdde /hurd/netdde
+pkill pfinet
+pkill devnode
+dhclient -v /dev/eth0
+</pre></blockquote></p>
+
+<p>After this, the machine had internet connectivity, and I could
+upgrade it and install the sysvinit packages from experimental and
+enable it as the default boot system in Hurd.</p>
+
+<p>But before I did that, I set a password on the root user, as ssh is
+running on the machine it for ssh login to work a password need to be
+set. Also, note that a bug somewhere in openssh on Hurd block
+compression from working. Remember to turn that off on the client
+side.</p>
+
+<p>Run these commands as root to upgrade and test the new sysvinit
+stuff:</p>
+
+<p><blockquote><pre>
+cat > /etc/apt/sources.list.d/experimental.list &lt;&lt;EOF
+deb http://http.debian.net/debian/ experimental main
+EOF
+apt-get update
+apt-get dist-upgrade
+apt-get install -t experimental initscripts sysv-rc sysvinit \
+ sysvinit-core sysvinit-utils
+update-alternatives --config runsystem
+</pre></blockquote></p>
+
+<p>To reboot after switching boot system, you have to use
+<tt>reboot-hurd</tt> instead of just <tt>reboot</tt>, as there is not
+yet a sysvinit process able to receive the signals from the normal
+'reboot' command. After switching to sysvinit as the boot system,
+upgrading every package and rebooting, the network come up with DHCP
+after boot as it should, and the settrans/pkill hack mentioned at the
+start is no longer needed. But for some strange reason, there are no
+longer any login prompt in the virtual console, so I logged in using
+ssh instead.
+
+<p>Note that there are some race conditions in Hurd making the boot
+fail some times. No idea what the cause is, but hope the Hurd porters
+figure it out. At least Justus said on IRC (#debian-hurd on
+irc.debian.org) that they are aware of the problem. A way to reduce
+the impact is to upgrade to the Hurd packages built by Justus by
+adding this repository to the machine:</p>
+
+<p><blockquote><pre>
+cat > /etc/apt/sources.list.d/hurd-ci.list &lt;&lt;EOF
+deb http://darnassus.sceen.net/~teythoon/hurd-ci/ sid main
+EOF
+</pre></blockquote></p>
+
+<p>At the moment the prebuilt virtual machine get some packages from
+http://ftp.debian-ports.org/debian, because some of the packages in
+unstable do not yet include the required patches that are lingering in
+BTS. This is the completely list of "unofficial" packages installed:</p>
+
+<p><blockquote><pre>
+# aptitude search '?narrow(?version(CURRENT),?origin(Debian Ports))'
+i emacs - GNU Emacs editor (metapackage)
+i gdb - GNU Debugger
+i hurd-recommended - Miscellaneous translators
+i isc-dhcp-client - ISC DHCP client
+i isc-dhcp-common - common files used by all the isc-dhcp* packages
+i libc-bin - Embedded GNU C Library: Binaries
+i libc-dev-bin - Embedded GNU C Library: Development binaries
+i libc0.3 - Embedded GNU C Library: Shared libraries
+i A libc0.3-dbg - Embedded GNU C Library: detached debugging symbols
+i libc0.3-dev - Embedded GNU C Library: Development Libraries and Hea
+i multiarch-support - Transitional package to ensure multiarch compatibilit
+i A x11-common - X Window System (X.Org) infrastructure
+i xorg - X.Org X Window System
+i A xserver-xorg - X.Org X server
+i A xserver-xorg-input-all - X.Org X server -- input driver metapackage
+#
+</pre></blockquote></p>
+
+<p>All in all, testing hurd has been an interesting experience. :)
+X.org did not work out of the box and I never took the time to follow
+the porters instructions to fix it. This time I was interested in the
+command line stuff.<p>
+</description>
+ </item>
+
+ <item>
+ <title>A fist full of non-anonymous Bitcoins</title>
+ <link>http://people.skolelinux.org/pere/blog/A_fist_full_of_non_anonymous_Bitcoins.html</link>
+ <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/A_fist_full_of_non_anonymous_Bitcoins.html</guid>
+ <pubDate>Wed, 29 Jan 2014 14:10:00 +0100</pubDate>
+ <description><p>Bitcoin is a incredible use of peer to peer communication and
+encryption, allowing direct and immediate money transfer without any
+central control. It is sometimes claimed to be ideal for illegal
+activity, which I believe is quite a long way from the truth. At least
+I would not conduct illegal money transfers using a system where the
+details of every transaction are kept forever. This point is
+investigated in
+<a href="https://www.usenix.org/publications/login">USENIX ;login:</a>
+from December 2013, in the article
+"<a href="https://www.usenix.org/system/files/login/articles/03_meiklejohn-online.pdf">A
+Fistful of Bitcoins - Characterizing Payments Among Men with No
+Names</a>" by Sarah Meiklejohn, Marjori Pomarole,Grant Jordan, Kirill
+Levchenko, Damon McCoy, Geoffrey M. Voelker, and Stefan Savage. They
+analyse the transaction log in the Bitcoin system, using it to find
+addresses belong to individuals and organisations and follow the flow
+of money from both Bitcoin theft and trades on Silk Road to where the
+money end up. This is how they wrap up their article:</p>