1 <!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Strict//EN"
2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
3 <html xmlns=
"http://www.w3.org/1999/xhtml" dir=
"ltr">
5 <meta http-equiv=
"Content-Type" content=
"text/html;charset=utf-8" />
6 <title>Petter Reinholdtsen: entries from July
2013</title>
7 <link rel=
"stylesheet" type=
"text/css" media=
"screen" href=
"http://people.skolelinux.org/pere/blog/style.css" />
8 <link rel=
"stylesheet" type=
"text/css" media=
"screen" href=
"http://people.skolelinux.org/pere/blog/vim.css" />
9 <link rel=
"alternate" title=
"RSS Feed" href=
"07.rss" type=
"application/rss+xml" />
15 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
22 <h3>Entries from July
2013.
</h3>
26 <a href=
"http://people.skolelinux.org/pere/blog/How_to_fix_a_Thinkpad_X230_with_a_broken_180_GB_SSD_disk.html">How to fix a Thinkpad X230 with a broken
180 GB SSD disk
</a>
32 <p>Today I switched to
33 <a href=
"http://people.skolelinux.org/pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html">my
34 new laptop
</a>. I've previously written about the problems I had with
35 my new Thinkpad X230, which was delivered with an
36 <a href=
"http://people.skolelinux.org/pere/blog/Intel_SSD_520_Series_180_GB_with_Lenovo_firmware_still_lock_up_from_sustained_writes.html">180
37 GB Intel SSD disk with Lenovo firmware
</a> that did not handle
38 sustained writes. My hardware supplier have been very forthcoming in
39 trying to find a solution, and after first trying with another
40 identical
180 GB disks they decided to send me a
256 GB Samsung SSD
41 disk instead to fix it once and for all. The Samsung disk survived
42 the installation of Debian with encrypted disks (filling the disk with
43 random data during installation killed the first two), and I thus
44 decided to trust it with my data. I have installed it as a Debian Edu
45 Wheezy roaming workstation hooked up with my Debian Edu Squeeze main
46 server at home using Kerberos and LDAP, and will use it as my work
47 station from now on.
</p>
49 <p>As this is a solid state disk with no moving parts, I believe the
50 Debian Wheezy default installation need to be tuned a bit to increase
51 performance and increase life time of the disk. The Linux kernel and
52 user space applications do not yet adjust automatically to such
53 environment. To make it easier for my self, I created a draft Debian
54 package
<tt>ssd-setup
</tt> to handle this tuning. The
55 <a href=
"http://anonscm.debian.org/gitweb/?p=collab-maint/ssd-setup.git">source
56 for the ssd-setup package
</a> is available from collab-maint, and it
57 is set up to adjust the setup of the machine by just installing the
58 package. If there is any non-SSD disk in the machine, the package
59 will refuse to install, as I did not try to write any logic to sort
60 file systems in SSD and non-SSD file systems.
</p>
62 <p>I consider the package a draft, as I am a bit unsure how to best
63 set up Debian Wheezy with an SSD. It is adjusted to my use case,
64 where I set up the machine with one large encrypted partition (in
65 addition to /boot), put LVM on top of this and set up partitions on
66 top of this again. See the README file in the package source for the
67 references I used to pick the settings. At the moment these
68 parameters are tuned:
</p>
72 <li>Set up cryptsetup to pass TRIM commands to the physical disk
73 (adding discard to /etc/crypttab)
</li>
75 <li>Set up LVM to pass on TRIM commands to the underlying device (in
76 this case a cryptsetup partition) by changing issue_discards from
77 0 to
1 in /etc/lvm/lvm.conf.
</li>
79 <li>Set relatime as a file system option for ext3 and ext4 file
82 <li>Tell swap to use TRIM commands by adding 'discard' to
85 <li>Change I/O scheduler from cfq to deadline using a udev rule.
</li>
87 <li>Run fstrim on every ext3 and ext4 file system every night (from
90 <li>Adjust sysctl values vm.swappiness to
1 and vm.vfs_cache_pressure
91 to
50 to reduce the kernel eagerness to swap out processes.
</li>
95 <p>During installation, I cancelled the part where the installer fill
96 the disk with random data, as this would kill the SSD performance for
97 little gain. My goal with the encrypted file system is to ensure
98 those stealing my laptop end up with a brick and not a working
99 computer. I have no hope in keeping the really resourceful people
100 from getting the data on the disk (see
101 <a href=
"http://xkcd.com/538/">XKCD #
538</a> for an explanation why).
102 Thus I concluded that adding the discard option to crypttab is the
103 right thing to do.
</p>
105 <p>I considered using the noop I/O scheduler, as several recommended
106 it for SSD, but others recommended deadline and a benchmark I found
107 indicated that deadline might be better for interactive use.
</p>
109 <p>I also considered using the 'discard' file system option for ext3
110 and ext4, but read that it would give a performance hit ever time a
111 file is removed, and thought it best to that that slowdown once a day
112 instead of during my work.
</p>
114 <p>My package do not set up tmpfs on /var/run, /var/lock and /tmp, as
115 this is already done by Debian Edu.
</p>
117 <p>I have not yet started on the user space tuning. I expect
118 iceweasel need some tuning, and perhaps other applications too, but
119 have not yet had time to investigate those parts.
</p>
121 <p>The package should work on Ubuntu too, but I have not yet tested it
124 <p>As for the answer to the question in the title of this blog post,
125 as far as I know, the only solution I know about is to replace the
126 disk. It might be possible to flash it with Intel firmware instead of
127 the Lenovo firmware. But I have not tried and did not want to do so
128 without approval from Lenovo as I wanted to keep the warranty on the
129 disk until a solution was found and they wanted the broken disks
136 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
141 <div class=
"padding"></div>
145 <a href=
"http://people.skolelinux.org/pere/blog/Intel_SSD_520_Series_180_GB_with_Lenovo_firmware_still_lock_up_from_sustained_writes.html">Intel SSD
520 Series
180 GB with Lenovo firmware still lock up from sustained writes
</a>
151 <p>A few days ago, I wrote about
152 <a href=
"http://people.skolelinux.org/pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html">the
153 problems I experienced with my new X230 and its SSD disk
</a>, which
154 was dying during installation because it is unable to cope with
155 sustained write. My supplier is in contact with
156 <a href=
"http://www.lenovo.com/">Lenovo
</a>, and they wanted to send a
157 replacement disk to try to fix the problem. They decided to send an
158 identical model, so my hopes for a permanent fix was slim.
</p>
160 <p>Anyway, today I got the replacement disk and tried to install
161 Debian Edu Wheezy with encrypted disk on it. The new disk have the
162 same firmware version as the original. This time my hope raised
163 slightly as the installation progressed, as the original disk used to
164 die after
4-
7% of the disk was written to, while this time it kept
165 going past
10%,
20%,
40% and even past
50%. But around
60%, the disk
166 died again and I was back on square one. I still do not have a new
167 laptop with a disk I can trust. I can not live with a disk that might
168 lock up when I download a new
169 <a href=
"http://www.skolelinux.org/">Debian Edu / Skolelinux
</a> ISO or
170 other large files. I look forward to hearing from my supplier with
171 the next proposal from Lenovo.
</p>
173 <p>The original disk is marked Intel SSD
520 Series
180 GB,
174 11S0C38722Z1ZNME35X1TR, ISN: CVCV321407HB180EGN, SA: G57560302, FW:
175 LF1i,
29MAY2013, PBA: G39779-
300, LBA
351,
651,
888, LI P/N:
0C38722,
176 Pb-free
2LI, LC P/N:
16-
200366, WWN:
55CD2E40002756C4, Model:
177 SSDSC2BW180A3L
2.5"
6Gb/s SATA SSD
180G
5V
1A, ASM P/N
0C38732, FRU
178 P/N
45N8295, P0C38732.
</p>
180 <p>The replacement disk is marked Intel SSD
520 Series
180 GB,
181 11S0C38722Z1ZNDE34N0L0, ISN: CVCV315306RK180EGN, SA: G57560-
302, FW:
182 LF1i,
22APR2013, PBA: G39779-
300, LBA
351,
651,
888, LI P/N:
0C38722,
183 Pb-free
2LI, LC P/N:
16-
200366, WWN:
55CD2E40000AB69E, Model:
184 SSDSC2BW180A3L
2.5"
6Gb/s SATA SSD
180G
5V
1A, ASM P/N
0C38732, FRU
185 P/N
45N8295, P0C38732.
</p>
187 <p>The only difference is in the first number (serial number?), ISN,
188 SA, date and WNPP values. Mentioning all the details here in case
189 someone is able to use the information to find a way to identify the
190 failing disk among working ones (if any such working disk actually
197 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
202 <div class=
"padding"></div>
206 <a href=
"http://people.skolelinux.org/pere/blog/July_13th__Debian_Ubuntu_BSP_and_Skolelinux_Debian_Edu_developer_gathering_in_Oslo.html">July
13th: Debian/Ubuntu BSP and Skolelinux/Debian Edu developer gathering in Oslo
</a>
212 <p>The upcoming Saturday,
2013-
07-
13, we are organising a combined
213 Debian Edu developer gathering and Debian and Ubuntu bug squashing
214 party in Oslo. It is organised by
<a href=
"http://www.nuug.no/">the
215 member assosiation NUUG
</a> and
216 <a href=
"http://www.skolelinux.org/">the Debian Edu / Skolelinux
217 project
</a> together with
<a href=
"http://bitraf.no/">the hack space
220 <p>It starts
10:
00 and continue until late evening. Everyone is
221 welcome, and there is no fee to participate. There is on the other
222 hand limited space, and only room for
30 people. Please put your name
223 on
<a href=
"http://wiki.debian.org/BSP/2013/07/13/no/Oslo">the event
224 wiki page
</a> if you plan to join us.
</p>
230 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug
</a>.
235 <div class=
"padding"></div>
239 <a href=
"http://people.skolelinux.org/pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html">The Thinkpad is dead, long live the Thinkpad X230?
</a>
245 <p>Half a year ago, I reported that I had to find a
246 <a href=
"http://people.skolelinux.org/pere/blog/Thank_you_Thinkpad_X41__for_your_long_and_trustworthy_service.html">replacement
247 for my trusty old Thinkpad X41
</a>. Unfortunately I did not have much
248 time to spend on it, and it took a while to find a model I believe
249 will do the job, but two days ago the replacement finally arrived. I
251 <a href=
"http://www.linlap.com/lenovo_thinkpad_x230">Thinkpad X230
</a>
252 with SSD disk (NZDAJMN). I first test installed Debian Edu Wheezy as
253 a roaming workstation, and it seemed to work flawlessly. But my
254 second installation with encrypted disk was not as successful. More
257 <p>I had a hard time trying to track down a good laptop, as my most
258 important requirements (robust and with a good keyboard) are never
259 listed in the feature list. But I did get good help from the search
260 feature at
<a href=
"http://www.prisjakt.no/">Prisjakt
</a>, which
261 allowed me to limit the list of interesting laptops based on my other
262 requirements. A bit surprising that SSD disk are not disks according
263 to that search interface, so I had to drop specifying the number of
264 disks from my search parameters. I also asked around among friends to
265 get their impression on keyboards and robustness.
</p>
267 <p>So the new laptop arrived, and it is quite a lot wider than the
268 X41. I am not quite convinced about the keyboard, as it is
269 significantly wider than my old keyboard, and I have to stretch my
270 hand a lot more to reach the edges. But the key response is fairly
271 good and the individual key shape is fairly easy to handle, so I hope
272 I will get used to it. My old X40 was starting to fail, and I really
273 needed a new laptop now. :)
</p>
275 <p>Turning off the touch pad was simple. All it took was a quick
276 visit to the BIOS during boot it disable it.
</p>
278 <p>But there is a fatal problem with the laptop. The
180 GB SSD disk
279 lock up during load. And this happen when installing Debian Wheezy
280 with encrypted disk, while the disk is being filled with random data.
281 I also tested to install Ubuntu Raring, and it happen there too if I
282 reenable the code to fill the disk with random data (it is disabled by
283 default in Ubuntu). And the bug with is already known. It was
284 reported to Debian as
<a href=
"http://bugs.debian.org/691427">BTS
285 report #
691427 2012-
10-
25</a> (journal commit I/O error on brand-new
286 Thinkpad T430s ext4 on lvm on SSD). It is also reported to the Linux
288 <a href=
"https://bugzilla.kernel.org/show_bug.cgi?id=51861">Kernel bugzilla
289 report #
51861 2012-
12-
20</a> (Intel SSD
520 stops working under load
290 (SSDSC2BW180A3L in Lenovo ThinkPad T430s)). It is also reported on the
291 Lenovo forums, both for
292 <a href=
"http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T430s-Intel-SSD-520-180GB-issue/m-p/1070549">T430
293 2012-
11-
10</a> and for
294 <a href=
"http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/x230-SATA-errors-with-180GB-Intel-520-SSD-under-heavy-write-load/m-p/1068147">X230
295 03-
20-
2013</a>. The problem do not only affect installation. The
296 reports state that the disk lock up during use if many writes are done
297 on the disk, so it is much no use to work around the installation
298 problem and end up with a computer that can lock up at any moment.
300 <a href=
"https://git.efficios.com/?p=test-ssd.git">small C program
301 available
</a> that will lock up the hard drive after running a few
302 minutes by writing to a file.
</p>
304 <p>I've contacted my supplier and asked how to handle this, and after
305 contacting PCHELP Norway (request
01D1FDP) which handle support
306 requests for Lenovo, his first suggestion was to upgrade the disk
307 firmware. Unfortunately there is no newer firmware available from
308 Lenovo, as my disk already have the most recent one (version LF1i). I
309 hope to hear more from him today and hope the problem can be
316 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
321 <div class=
"padding"></div>
325 <a href=
"http://people.skolelinux.org/pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230.html">The Thinkpad is dead, long live the Thinkpad X230
</a>
331 <p>Half a year ago, I reported that I had to find a replacement for my
332 trusty old Thinkpad X41. Unfortunately I did not have much time to
333 spend on it, but today the replacement finally arrived. I ended up
334 picking a
<a href=
"http://www.linlap.com/lenovo_thinkpad_x230">Thinkpad
335 X230
</a> with SSD disk (NZDAJMN). I first test installed Debian Edu
336 Wheezy as a roaming workstation, and it worked flawlessly. As I write
337 this, it is installing what I hope will be a more final installation,
338 with a encrypted hard drive to ensure any dope head stealing it end up
339 with an expencive door stop.
</p>
341 <p>I had a hard time trying to track down a good laptop, as my most
342 important requirements (robust and with a good keyboard) are never
343 listed in the feature list. But I did get good help from the search
344 feature at
<ahref=
"http://www.prisjakt.no/">Prisjakt
</a>, which
345 allowed me to limit the list of interesting laptops based on my other
346 requirements. A bit surprising that SSD disk are not disks, so I had
347 to drop number of disks from my search parameters.
</p>
349 <p>I am not quite convinced about the keyboard, as it is significantly
350 wider than my old keyboard, and I have to stretch my hand a lot more
351 to reach the edges. But the key response is fairly good and the
352 individual key shape is fairly easy to handle, so I hope I will get
353 used to it. My old X40 was starting to fail, and I really needed a
354 new laptop now. :)
</p>
356 <p>I look forward to figuring out how to turn off the touch pad.
</p>
362 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
367 <div class=
"padding"></div>
371 <a href=
"http://people.skolelinux.org/pere/blog/Fourth_alpha_release_of_Debian_Edu_Skolelinux_based_on_Debian_Wheezy.html">Fourth alpha release of Debian Edu/Skolelinux based on Debian Wheezy
</a>
377 <p>The fourth wheezy based alpha release of Debian Edu was wrapped up
378 today. This is the release announcement:
</p>
380 <p><strong>New features for Debian Edu
7.1+edu0~alpha3 released
381 2013-
07-
03</strong></p>
383 <p>These are the release notes for for Debian Edu / Skolelinux
384 7.1+edu0~alpha3, based on Debian with codename "Wheezy".
</p>
386 <p><strong>About Debian Edu and Skolelinux
</strong></p>
388 <p><a href=
"http://www.skolelinux.org/">Debian Edu, also known as
389 Skolelinux
</a>, is a Linux distribution based on Debian providing an
390 out-of-the box environment of a completely configured school
391 network. Immediately after installation a school server running all
392 services needed for a school network is set up just waiting for users
393 and machines being added via GOsa², a comfortable Web-UI. A netbooting
394 environment is prepared using PXE, so after initial installation of
395 the main server from CD, DVD or USB stick all other machines can be
396 installed via the network. The provided school server provides LDAP
397 database and Kerberos authentication service, centralized home
398 directories, DHCP server, web proxy and many other services. The
400 <a href=
"http://people.skolelinux.org/pere/blog/Educational_applications_included_in_Debian_Edu___Skolelinux__the_screenshot_collection____.html">more
401 than
60 educational software packages
</a> and more are available from
402 the Debian archive, and schools can choose between KDE, Gnome, LXDE
403 and Xfce desktop environment.
</p>
405 <p>This is the fourth test release based on Debian Wheezy. Basically
406 this is an updated and slightly improved version compared to the
409 <p><strong>Software updates
</strong></p>
411 <li>Dropped ispell dictionaries from our default installation.
</li>
412 <li>Dropped menu-xdg from the KDE desktop option, to drop the Debian
413 submenu. It was not included with Gnome, LXDE or Xfce, so this
414 brings KDE in line with the others.
</li>
415 <li>Dropped xdrawchem, xjig and xsok from our default installation as
416 they don't have a desktop menu entry and thus won't show up in the
417 menu now that menu-xdg was removed.
</li>
418 <li>Removed the killer system to kill left behind processes on
419 multi-user machines, as it was no longer able to understand when a
420 X display was in use and killed the processes of the active users
422 <li>Dropped the golearn (from goplay) package as the debtags in wheezy
423 are too few to make the package useful.
</li>
425 <p><strong>Other changes
</strong></p>
427 <li>Updated artwork matching http://wiki.debian.org/DebianArt/Themes/Joy
428 <li>Multi-arch i386/amd64 USB stick ISO available.
</li>
429 <li>Got rid of ispell/wordlist related debconf questions that showed
430 up for some language options.
</li>
431 <li>Switched to using http.debian.net as APT source by default.
</li>
432 <li>Fixed proxy configuration on Main Server installations.
</li>
433 <li>Changed LTSP setup to ask dpkg to use force-unsafe-io the same way
434 d-i is doing it.
</li>
435 <li>Made sure root and user passwords were not left behind in the
436 debconf database after installation on Main Server installations.
</li>
437 <li>Made Roaming Workstation dynamic setup more robust and added draft
438 script setup-ad-client to hook a Roaming Workstation up to a
439 Active Directory server instead of a Debian Edu Main Server.
</li>
440 <li>Update system to install needed firmware packages during
441 installation, to work properly in Wheezy.
</li>
442 <li>Update system to handle hardware quirks (debian-edu-hwsetup).
</li>
443 <li>Corrected PXE installation setup to properly pass selected desktop
444 and keymap settings to PXE installation clients.
</li>
445 <li>LTSP diskless workstations use sshfs by default, allowing them to
446 work without adding them to DNS and NIS netgroups for NFS access.
</li>
448 <p><strong>Known issues
</strong></p>
450 <li>No mass import of user account data in GOsa (ldif or csv)
451 available yet (
698840).
</li>
452 <li>Artwork not enabled for all desktops.
</li>
454 <p><strong>Where to get it
</strong></p>
456 <p>To download the multiarch netinstall CD release you can use
</p>
458 <li><a href=
"ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso">ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-
7.1+edu0~a3-CD.iso
</a></li>
459 <li><a href=
"http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso">http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-
7.1+edu0~a3-CD.iso
</a></li>
460 <li>rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-
7.1+edu0~a3-CD.iso .
</li>
463 <p>The MD5SUM of this image is:
2b161a99d2a848c376d8d04e3854e30c
464 <br>The SHA1SUM of this image is:
498922e9c508c0a7ee9dbe1dfe5bf830d779c3c8
</p>
466 <p>To download the multiarch USB stick ISO release you can use
</p>
468 <li><a href=
"ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso">ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-
7.1+edu0~a3-USB.iso
</a></li>
469 <li><a href=
"http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso">http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-
7.1+edu0~a3-USB.iso
</a></li>
470 <li>rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-
7.1+edu0~a3-USB.iso .
</li>
473 <p>The MD5SUM of this image is:
25e808e403a4c15dbef1d13c37d572ac
474 <br>The SHA1SUM of this image is:
15ecfc93eb6b4f453b7eb0bc04b6a279262d9721
</p>
476 <p><strong>How to report bugs
</strong></p>
478 <p><a href=
"http://wiki.debian.org/DebianEdu/HowTo/ReportBugs">http://wiki.debian.org/DebianEdu/HowTo/ReportBugs
</a></p>
484 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
489 <div class=
"padding"></div>
491 <p style=
"text-align: right;"><a href=
"07.rss"><img src=
"http://people.skolelinux.org/pere/blog/xml.gif" alt=
"RSS Feed" width=
"36" height=
"14" /></a></p>
502 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/01/">January (
11)
</a></li>
504 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/02/">February (
9)
</a></li>
506 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/03/">March (
9)
</a></li>
508 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/04/">April (
6)
</a></li>
510 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/05/">May (
9)
</a></li>
512 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/06/">June (
10)
</a></li>
514 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/07/">July (
6)
</a></li>
521 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/01/">January (
7)
</a></li>
523 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/02/">February (
10)
</a></li>
525 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/03/">March (
17)
</a></li>
527 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/04/">April (
12)
</a></li>
529 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/05/">May (
12)
</a></li>
531 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/06/">June (
20)
</a></li>
533 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/07/">July (
17)
</a></li>
535 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/08/">August (
6)
</a></li>
537 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/09/">September (
9)
</a></li>
539 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/10/">October (
17)
</a></li>
541 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/11/">November (
10)
</a></li>
543 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/12/">December (
7)
</a></li>
550 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/01/">January (
16)
</a></li>
552 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/02/">February (
6)
</a></li>
554 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/03/">March (
6)
</a></li>
556 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/04/">April (
7)
</a></li>
558 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/05/">May (
3)
</a></li>
560 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/06/">June (
2)
</a></li>
562 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/07/">July (
7)
</a></li>
564 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/08/">August (
6)
</a></li>
566 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/09/">September (
4)
</a></li>
568 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/10/">October (
2)
</a></li>
570 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/11/">November (
3)
</a></li>
572 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/12/">December (
1)
</a></li>
579 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/01/">January (
2)
</a></li>
581 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/02/">February (
1)
</a></li>
583 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/03/">March (
3)
</a></li>
585 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/04/">April (
3)
</a></li>
587 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/05/">May (
9)
</a></li>
589 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/06/">June (
14)
</a></li>
591 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/07/">July (
12)
</a></li>
593 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/08/">August (
13)
</a></li>
595 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/09/">September (
7)
</a></li>
597 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/10/">October (
9)
</a></li>
599 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/11/">November (
13)
</a></li>
601 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/12/">December (
12)
</a></li>
608 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/01/">January (
8)
</a></li>
610 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/02/">February (
8)
</a></li>
612 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/03/">March (
12)
</a></li>
614 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/04/">April (
10)
</a></li>
616 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/05/">May (
9)
</a></li>
618 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/06/">June (
3)
</a></li>
620 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/07/">July (
4)
</a></li>
622 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/08/">August (
3)
</a></li>
624 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/09/">September (
1)
</a></li>
626 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/10/">October (
2)
</a></li>
628 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/11/">November (
3)
</a></li>
630 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/12/">December (
3)
</a></li>
637 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/11/">November (
5)
</a></li>
639 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/12/">December (
7)
</a></li>
650 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (
13)
</a></li>
652 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/amiga">amiga (
1)
</a></li>
654 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/aros">aros (
1)
</a></li>
656 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bankid">bankid (
4)
</a></li>
658 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (
7)
</a></li>
660 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (
12)
</a></li>
662 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bsa">bsa (
2)
</a></li>
664 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian (
83)
</a></li>
666 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (
137)
</a></li>
668 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/digistan">digistan (
10)
</a></li>
670 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/docbook">docbook (
9)
</a></li>
672 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (
4)
</a></li>
674 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/english">english (
209)
</a></li>
676 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (
21)
</a></li>
678 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
12)
</a></li>
680 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (
11)
</a></li>
682 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (
11)
</a></li>
684 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju (
37)
</a></li>
686 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (
7)
</a></li>
688 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
18)
</a></li>
690 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
8)
</a></li>
692 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
6)
</a></li>
694 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li>
696 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
25)
</a></li>
698 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
234)
</a></li>
700 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
153)
</a></li>
702 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (
8)
</a></li>
704 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/open311">open311 (
2)
</a></li>
706 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
44)
</a></li>
708 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
65)
</a></li>
710 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/raid">raid (
1)
</a></li>
712 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
11)
</a></li>
714 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid (
2)
</a></li>
716 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
7)
</a></li>
718 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li>
720 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ruter">ruter (
4)
</a></li>
722 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (
2)
</a></li>
724 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
29)
</a></li>
726 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
4)
</a></li>
728 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (
4)
</a></li>
730 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
43)
</a></li>
732 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
3)
</a></li>
734 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (
7)
</a></li>
736 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (
15)
</a></li>
738 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (
1)
</a></li>
740 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/valg">valg (
7)
</a></li>
742 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
38)
</a></li>
744 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
4)
</a></li>
746 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
26)
</a></li>
752 <p style=
"text-align: right">
753 Created by
<a href=
"http://steve.org.uk/Software/chronicle">Chronicle v4.6
</a>