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1 <?xml version="1.0" encoding="ISO-8859-1"?>
2 <rss version='2.0' xmlns:lj='http://www.livejournal.org/rss/lj/1.0/'>
3 <channel>
4 <title>Petter Reinholdtsen - Entries from July 2013</title>
5 <description>Entries from July 2013</description>
6 <link>http://www.hungry.com/~pere/blog/</link>
7
8
9 <item>
10 <title>First beta release of Debian Edu/Skolelinux based on Debian Wheezy</title>
11 <link>http://www.hungry.com/~pere/blog/First_beta_release_of_Debian_Edu_Skolelinux_based_on_Debian_Wheezy.html</link>
12 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/First_beta_release_of_Debian_Edu_Skolelinux_based_on_Debian_Wheezy.html</guid>
13 <pubDate>Sat, 27 Jul 2013 20:30:00 +0200</pubDate>
14 <description>&lt;p&gt;The first wheezy based beta release of Debian Edu was wrapped up
15 today. This is the release announcement:&lt;/p&gt;
16
17 &lt;p&gt;&lt;strong&gt;New features for Debian Edu 7.1+edu0~b0 released
18 2013-07-27&lt;/strong&gt;&lt;/p&gt;
19
20 &lt;p&gt;These are the release notes for for Debian Edu / Skolelinux
21 7.1+edu0~b0, based on Debian with codename &quot;Wheezy&quot;.&lt;/p&gt;
22
23 &lt;p&gt;&lt;strong&gt;About Debian Edu and Skolelinux&lt;/strong&gt;&lt;/p&gt;
24
25 &lt;p&gt;&lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;Debian Edu, also known as
26 Skolelinux&lt;/a&gt;, is a Linux distribution based on Debian providing an
27 out-of-the box environment of a completely configured school
28 network. Immediately after installation a school server running all
29 services needed for a school network is set up just waiting for users
30 and machines being added via GOsa², a comfortable Web-UI. A netbooting
31 environment is prepared using PXE, so after initial installation of
32 the main server from CD, DVD or USB stick all other machines can be
33 installed via the network. The provided school server provides LDAP
34 database and Kerberos authentication service, centralized home
35 directories, DHCP server, web proxy and many other services. The
36 desktop contains
37 &lt;a href=&quot;https://people.skolelinux.org/pere/blog/Educational_applications_included_in_Debian_Edu___Skolelinux__the_screenshot_collection____.html&quot;&gt;more
38 than 60 educational software packages&lt;/a&gt; and more are available from
39 the Debian archive, and schools can choose between KDE, Gnome, LXDE
40 and Xfce desktop environment.&lt;/p&gt;
41
42 &lt;p&gt;This is the fifth test release based on Debian Wheezy. Basically
43 this is an updated and slightly improved version compared to the
44 Squeeze release.&lt;/p&gt;
45
46 &lt;p&gt;ALERT: Alpha based installations should reinstall or downgrade the
47 versions of gosa and libpam-mklocaluser to the ones used in this beta
48 release.&lt;/p&gt;
49
50 &lt;p&gt;&lt;strong&gt;Software updates&lt;/strong&gt;&lt;/p&gt;
51
52 &lt;ul&gt;
53
54 &lt;li&gt;Switched roaming workstation profiles from wicd to network-manager
55 for network configuration, as wicd didn&#39;t work any more.&lt;/li&gt;
56 &lt;li&gt;Changed version numbers of patched gosa and libpam-mklocaluser
57 packages to make sure our locally patched versions will be replaced
58 by the official packages when they are released from Debian. Those
59 installing alpha version need to reinstall or manually downgrade gosa
60 and libpam-mklocaluser.&lt;/li&gt;
61 &lt;li&gt;Added bluetooth tools to the default desktop (bluedevil, blueman).&lt;/li&gt;
62 &lt;li&gt;Added tools for sharing the desktop on KDE (krdc, krfb).&lt;/li&gt;
63 &lt;li&gt;Added valgrind to the default installation for easier debugging of
64 crash bugs.&lt;/li&gt;
65
66 &lt;/ul&gt;
67
68 &lt;p&gt;&lt;strong&gt;Other changes&lt;/strong&gt;&lt;/p&gt;
69
70 &lt;ul&gt;
71
72 &lt;li&gt;Fixed artwork package to work with gnome, no longer break
73 desktop=gnome installations.&lt;/li&gt;
74 &lt;li&gt;Adjusted installer to now work when forced to use a proxy with the
75 netinst CD.&lt;/li&gt;
76 &lt;li&gt;Fixed code detecting and setting/loading hardware specific
77 setup/firmware to work more robust out of the box.&lt;/li&gt;
78 &lt;li&gt;Adjusted Kerberos setup to detect realm and server settings at
79 install time instead of dynamically at run time. This avoid a crash
80 with krb5-auth-dialog on diskless workstations without a DNS name.&lt;/li&gt;
81 &lt;li&gt;Worked around misfeature in network-manager not calling the dhclient
82 exit hooks, causing automatic proxy configuration and automatic host
83 name setting at run time to work again.&lt;/li&gt;
84 &lt;li&gt;Fixed feature setting the default Iceweasel start page from URL
85 fetched from LDAP, to allow schools to set the global default by
86 updating the dc=skole,dc=skolelinux,dc=no LDAP object.&lt;/li&gt;
87 &lt;li&gt;Changed default host name on all networked machines to be unique
88 (generated from MAC or reverse DNS) after boot.&lt;/li&gt;
89 &lt;li&gt;Adjusted partition sizes to make sure they are big enough.&lt;/li&gt;
90
91 &lt;/ul&gt;
92
93 &lt;p&gt;&lt;strong&gt;Known issues&lt;/strong&gt;&lt;/p&gt;
94
95 &lt;ul&gt;
96
97 &lt;li&gt;Grub is missing the new artwork.&lt;/li&gt;
98 &lt;li&gt;KDE fail to understand the wpad.dat file provided, causing it to
99 not use the http proxy as it should.&lt;/li&gt;
100 &lt;li&gt;Chromium also fail to use the proxy.&lt;/li&gt;
101
102 &lt;/ul&gt;
103
104 &lt;p&gt;&lt;strong&gt;Where to get it&lt;/strong&gt;&lt;/p&gt;
105
106 &lt;p&gt;To download the multiarch netinstall CD release you can use&lt;/p&gt;
107
108 &lt;ul&gt;
109
110 &lt;li&gt;&lt;a href=&quot;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-CD.iso&quot;&gt;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-CD.iso&lt;/a&gt;&lt;/li&gt;
111
112 &lt;li&gt;&lt;a href=&quot;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-CD.iso&quot;&gt;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-CD.iso&lt;/a&gt;&lt;/li&gt;
113
114 &lt;li&gt;rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-CD.iso .&lt;/li&gt;
115
116 &lt;/ul&gt;
117
118 &lt;p&gt;The MD5SUM of this image is: 55d5de9765b6dccd5d9ec33cf1a07109
119 &lt;br&gt;The SHA1SUM of this image is: 996a1d9517740e4d627d100de2d12b23dd545a3f&lt;/p&gt;
120
121 &lt;p&gt;To download the multiarch USB stick ISO release you can use&lt;/p&gt;
122
123 &lt;ul&gt;
124
125 &lt;li&gt;&lt;a href=&quot;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-USB.iso&quot;&gt;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-USB.iso&lt;/a&gt;&lt;/li&gt;
126 &lt;li&gt;&lt;a href=&quot;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-USB.iso&quot;&gt;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-USB.iso&lt;/a&gt;&lt;/li&gt;
127 &lt;li&gt;rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-7.1+edu0~b0-USB.iso .&lt;/li&gt;
128
129 &lt;/ul&gt;
130
131 &lt;p&gt;The MD5SUM of this image is: d8f0818c51a78d357de794066f289f69
132 &lt;br&gt;The SHA1SUM of this image is: 49185ca354e8d0543240423746924f76a6cee733&lt;/p&gt;
133
134
135 &lt;p&gt;&lt;strong&gt;How to report bugs&lt;/strong&gt;&lt;/p&gt;
136
137 &lt;p&gt;&lt;a href=&quot;http://wiki.debian.org/DebianEdu/HowTo/ReportBugs&quot;&gt;http://wiki.debian.org/DebianEdu/HowTo/ReportBugs&lt;/a&gt;
138 </description>
139 </item>
140
141 <item>
142 <title>How to fix a Thinkpad X230 with a broken 180 GB SSD disk</title>
143 <link>http://www.hungry.com/~pere/blog/How_to_fix_a_Thinkpad_X230_with_a_broken_180_GB_SSD_disk.html</link>
144 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/How_to_fix_a_Thinkpad_X230_with_a_broken_180_GB_SSD_disk.html</guid>
145 <pubDate>Wed, 17 Jul 2013 23:50:00 +0200</pubDate>
146 <description>&lt;p&gt;Today I switched to
147 &lt;a href=&quot;https://people.skolelinux.org/pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html&quot;&gt;my
148 new laptop&lt;/a&gt;. I&#39;ve previously written about the problems I had with
149 my new Thinkpad X230, which was delivered with an
150 &lt;a href=&quot;https://people.skolelinux.org/pere/blog/Intel_SSD_520_Series_180_GB_with_Lenovo_firmware_still_lock_up_from_sustained_writes.html&quot;&gt;180
151 GB Intel SSD disk with Lenovo firmware&lt;/a&gt; that did not handle
152 sustained writes. My hardware supplier have been very forthcoming in
153 trying to find a solution, and after first trying with another
154 identical 180 GB disks they decided to send me a 256 GB Samsung SSD
155 disk instead to fix it once and for all. The Samsung disk survived
156 the installation of Debian with encrypted disks (filling the disk with
157 random data during installation killed the first two), and I thus
158 decided to trust it with my data. I have installed it as a Debian Edu
159 Wheezy roaming workstation hooked up with my Debian Edu Squeeze main
160 server at home using Kerberos and LDAP, and will use it as my work
161 station from now on.&lt;/p&gt;
162
163 &lt;p&gt;As this is a solid state disk with no moving parts, I believe the
164 Debian Wheezy default installation need to be tuned a bit to increase
165 performance and increase life time of the disk. The Linux kernel and
166 user space applications do not yet adjust automatically to such
167 environment. To make it easier for my self, I created a draft Debian
168 package &lt;tt&gt;ssd-setup&lt;/tt&gt; to handle this tuning. The
169 &lt;a href=&quot;http://anonscm.debian.org/gitweb/?p=collab-maint/ssd-setup.git&quot;&gt;source
170 for the ssd-setup package&lt;/a&gt; is available from collab-maint, and it
171 is set up to adjust the setup of the machine by just installing the
172 package. If there is any non-SSD disk in the machine, the package
173 will refuse to install, as I did not try to write any logic to sort
174 file systems in SSD and non-SSD file systems.&lt;/p&gt;
175
176 &lt;p&gt;I consider the package a draft, as I am a bit unsure how to best
177 set up Debian Wheezy with an SSD. It is adjusted to my use case,
178 where I set up the machine with one large encrypted partition (in
179 addition to /boot), put LVM on top of this and set up partitions on
180 top of this again. See the README file in the package source for the
181 references I used to pick the settings. At the moment these
182 parameters are tuned:&lt;/p&gt;
183
184 &lt;ul&gt;
185
186 &lt;li&gt;Set up cryptsetup to pass TRIM commands to the physical disk
187 (adding discard to /etc/crypttab)&lt;/li&gt;
188
189 &lt;li&gt;Set up LVM to pass on TRIM commands to the underlying device (in
190 this case a cryptsetup partition) by changing issue_discards from
191 0 to 1 in /etc/lvm/lvm.conf.&lt;/li&gt;
192
193 &lt;li&gt;Set relatime as a file system option for ext3 and ext4 file
194 systems.&lt;/li&gt;
195
196 &lt;li&gt;Tell swap to use TRIM commands by adding &#39;discard&#39; to
197 /etc/fstab.&lt;/li&gt;
198
199 &lt;li&gt;Change I/O scheduler from cfq to deadline using a udev rule.&lt;/li&gt;
200
201 &lt;li&gt;Run fstrim on every ext3 and ext4 file system every night (from
202 cron.daily).&lt;/li&gt;
203
204 &lt;li&gt;Adjust sysctl values vm.swappiness to 1 and vm.vfs_cache_pressure
205 to 50 to reduce the kernel eagerness to swap out processes.&lt;/li&gt;
206
207 &lt;/ul&gt;
208
209 &lt;p&gt;During installation, I cancelled the part where the installer fill
210 the disk with random data, as this would kill the SSD performance for
211 little gain. My goal with the encrypted file system is to ensure
212 those stealing my laptop end up with a brick and not a working
213 computer. I have no hope in keeping the really resourceful people
214 from getting the data on the disk (see
215 &lt;a href=&quot;http://xkcd.com/538/&quot;&gt;XKCD #538&lt;/a&gt; for an explanation why).
216 Thus I concluded that adding the discard option to crypttab is the
217 right thing to do.&lt;/p&gt;
218
219 &lt;p&gt;I considered using the noop I/O scheduler, as several recommended
220 it for SSD, but others recommended deadline and a benchmark I found
221 indicated that deadline might be better for interactive use.&lt;/p&gt;
222
223 &lt;p&gt;I also considered using the &#39;discard&#39; file system option for ext3
224 and ext4, but read that it would give a performance hit ever time a
225 file is removed, and thought it best to that that slowdown once a day
226 instead of during my work.&lt;/p&gt;
227
228 &lt;p&gt;My package do not set up tmpfs on /var/run, /var/lock and /tmp, as
229 this is already done by Debian Edu.&lt;/p&gt;
230
231 &lt;p&gt;I have not yet started on the user space tuning. I expect
232 iceweasel need some tuning, and perhaps other applications too, but
233 have not yet had time to investigate those parts.&lt;/p&gt;
234
235 &lt;p&gt;The package should work on Ubuntu too, but I have not yet tested it
236 there.&lt;/p&gt;
237
238 &lt;p&gt;As for the answer to the question in the title of this blog post,
239 as far as I know, the only solution I know about is to replace the
240 disk. It might be possible to flash it with Intel firmware instead of
241 the Lenovo firmware. But I have not tried and did not want to do so
242 without approval from Lenovo as I wanted to keep the warranty on the
243 disk until a solution was found and they wanted the broken disks
244 back.&lt;/p&gt;
245 </description>
246 </item>
247
248 <item>
249 <title>Intel SSD 520 Series 180 GB with Lenovo firmware still lock up from sustained writes</title>
250 <link>http://www.hungry.com/~pere/blog/Intel_SSD_520_Series_180_GB_with_Lenovo_firmware_still_lock_up_from_sustained_writes.html</link>
251 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/Intel_SSD_520_Series_180_GB_with_Lenovo_firmware_still_lock_up_from_sustained_writes.html</guid>
252 <pubDate>Wed, 10 Jul 2013 13:30:00 +0200</pubDate>
253 <description>&lt;p&gt;A few days ago, I wrote about
254 &lt;a href=&quot;https://people.skolelinux.org/pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html&quot;&gt;the
255 problems I experienced with my new X230 and its SSD disk&lt;/a&gt;, which
256 was dying during installation because it is unable to cope with
257 sustained write. My supplier is in contact with
258 &lt;a href=&quot;http://www.lenovo.com/&quot;&gt;Lenovo&lt;/a&gt;, and they wanted to send a
259 replacement disk to try to fix the problem. They decided to send an
260 identical model, so my hopes for a permanent fix was slim.&lt;/p&gt;
261
262 &lt;p&gt;Anyway, today I got the replacement disk and tried to install
263 Debian Edu Wheezy with encrypted disk on it. The new disk have the
264 same firmware version as the original. This time my hope raised
265 slightly as the installation progressed, as the original disk used to
266 die after 4-7% of the disk was written to, while this time it kept
267 going past 10%, 20%, 40% and even past 50%. But around 60%, the disk
268 died again and I was back on square one. I still do not have a new
269 laptop with a disk I can trust. I can not live with a disk that might
270 lock up when I download a new
271 &lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;Debian Edu / Skolelinux&lt;/a&gt; ISO or
272 other large files. I look forward to hearing from my supplier with
273 the next proposal from Lenovo.&lt;/p&gt;
274
275 &lt;p&gt;The original disk is marked Intel SSD 520 Series 180 GB,
276 11S0C38722Z1ZNME35X1TR, ISN: CVCV321407HB180EGN, SA: G57560302, FW:
277 LF1i, 29MAY2013, PBA: G39779-300, LBA 351,651,888, LI P/N: 0C38722,
278 Pb-free 2LI, LC P/N: 16-200366, WWN: 55CD2E40002756C4, Model:
279 SSDSC2BW180A3L 2.5&quot; 6Gb/s SATA SSD 180G 5V 1A, ASM P/N 0C38732, FRU
280 P/N 45N8295, P0C38732.&lt;/p&gt;
281
282 &lt;p&gt;The replacement disk is marked Intel SSD 520 Series 180 GB,
283 11S0C38722Z1ZNDE34N0L0, ISN: CVCV315306RK180EGN, SA: G57560-302, FW:
284 LF1i, 22APR2013, PBA: G39779-300, LBA 351,651,888, LI P/N: 0C38722,
285 Pb-free 2LI, LC P/N: 16-200366, WWN: 55CD2E40000AB69E, Model:
286 SSDSC2BW180A3L 2.5&quot; 6Gb/s SATA SSD 180G 5V 1A, ASM P/N 0C38732, FRU
287 P/N 45N8295, P0C38732.&lt;/p&gt;
288
289 &lt;p&gt;The only difference is in the first number (serial number?), ISN,
290 SA, date and WNPP values. Mentioning all the details here in case
291 someone is able to use the information to find a way to identify the
292 failing disk among working ones (if any such working disk actually
293 exist).&lt;/p&gt;
294 </description>
295 </item>
296
297 <item>
298 <title>July 13th: Debian/Ubuntu BSP and Skolelinux/Debian Edu developer gathering in Oslo</title>
299 <link>http://www.hungry.com/~pere/blog/July_13th__Debian_Ubuntu_BSP_and_Skolelinux_Debian_Edu_developer_gathering_in_Oslo.html</link>
300 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/July_13th__Debian_Ubuntu_BSP_and_Skolelinux_Debian_Edu_developer_gathering_in_Oslo.html</guid>
301 <pubDate>Tue, 9 Jul 2013 10:40:00 +0200</pubDate>
302 <description>&lt;p&gt;The upcoming Saturday, 2013-07-13, we are organising a combined
303 Debian Edu developer gathering and Debian and Ubuntu bug squashing
304 party in Oslo. It is organised by &lt;a href=&quot;http://www.nuug.no/&quot;&gt;the
305 member assosiation NUUG&lt;/a&gt; and
306 &lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;the Debian Edu / Skolelinux
307 project&lt;/a&gt; together with &lt;a href=&quot;http://bitraf.no/&quot;&gt;the hack space
308 Bitraf&lt;/a&gt;.&lt;/p&gt;
309
310 &lt;p&gt;It starts 10:00 and continue until late evening. Everyone is
311 welcome, and there is no fee to participate. There is on the other
312 hand limited space, and only room for 30 people. Please put your name
313 on &lt;a href=&quot;http://wiki.debian.org/BSP/2013/07/13/no/Oslo&quot;&gt;the event
314 wiki page&lt;/a&gt; if you plan to join us.&lt;/p&gt;
315 </description>
316 </item>
317
318 <item>
319 <title>The Thinkpad is dead, long live the Thinkpad X230?</title>
320 <link>http://www.hungry.com/~pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html</link>
321 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230_.html</guid>
322 <pubDate>Fri, 5 Jul 2013 08:30:00 +0200</pubDate>
323 <description>&lt;p&gt;Half a year ago, I reported that I had to find a
324 &lt;a href=&quot;https://people.skolelinux.org/pere/blog/Thank_you_Thinkpad_X41__for_your_long_and_trustworthy_service.html&quot;&gt;replacement
325 for my trusty old Thinkpad X41&lt;/a&gt;. Unfortunately I did not have much
326 time to spend on it, and it took a while to find a model I believe
327 will do the job, but two days ago the replacement finally arrived. I
328 ended up picking a
329 &lt;a href=&quot;http://www.linlap.com/lenovo_thinkpad_x230&quot;&gt;Thinkpad X230&lt;/a&gt;
330 with SSD disk (NZDAJMN). I first test installed Debian Edu Wheezy as
331 a roaming workstation, and it seemed to work flawlessly. But my
332 second installation with encrypted disk was not as successful. More
333 on that below.&lt;/p&gt;
334
335 &lt;p&gt;I had a hard time trying to track down a good laptop, as my most
336 important requirements (robust and with a good keyboard) are never
337 listed in the feature list. But I did get good help from the search
338 feature at &lt;a href=&quot;http://www.prisjakt.no/&quot;&gt;Prisjakt&lt;/a&gt;, which
339 allowed me to limit the list of interesting laptops based on my other
340 requirements. A bit surprising that SSD disk are not disks according
341 to that search interface, so I had to drop specifying the number of
342 disks from my search parameters. I also asked around among friends to
343 get their impression on keyboards and robustness.&lt;/p&gt;
344
345 &lt;p&gt;So the new laptop arrived, and it is quite a lot wider than the
346 X41. I am not quite convinced about the keyboard, as it is
347 significantly wider than my old keyboard, and I have to stretch my
348 hand a lot more to reach the edges. But the key response is fairly
349 good and the individual key shape is fairly easy to handle, so I hope
350 I will get used to it. My old X40 was starting to fail, and I really
351 needed a new laptop now. :)&lt;/p&gt;
352
353 &lt;p&gt;Turning off the touch pad was simple. All it took was a quick
354 visit to the BIOS during boot it disable it.&lt;/p&gt;
355
356 &lt;p&gt;But there is a fatal problem with the laptop. The 180 GB SSD disk
357 lock up during load. And this happen when installing Debian Wheezy
358 with encrypted disk, while the disk is being filled with random data.
359 I also tested to install Ubuntu Raring, and it happen there too if I
360 reenable the code to fill the disk with random data (it is disabled by
361 default in Ubuntu). And the bug with is already known. It was
362 reported to Debian as &lt;a href=&quot;http://bugs.debian.org/691427&quot;&gt;BTS
363 report #691427 2012-10-25&lt;/a&gt; (journal commit I/O error on brand-new
364 Thinkpad T430s ext4 on lvm on SSD). It is also reported to the Linux
365 kernel developers as
366 &lt;a href=&quot;https://bugzilla.kernel.org/show_bug.cgi?id=51861&quot;&gt;Kernel bugzilla
367 report #51861 2012-12-20&lt;/a&gt; (Intel SSD 520 stops working under load
368 (SSDSC2BW180A3L in Lenovo ThinkPad T430s)). It is also reported on the
369 Lenovo forums, both for
370 &lt;a href=&quot;http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T430s-Intel-SSD-520-180GB-issue/m-p/1070549&quot;&gt;T430
371 2012-11-10&lt;/a&gt; and for
372 &lt;a href=&quot;http://forums.lenovo.com/t5/X-Series-ThinkPad-Laptops/x230-SATA-errors-with-180GB-Intel-520-SSD-under-heavy-write-load/m-p/1068147&quot;&gt;X230
373 03-20-2013&lt;/a&gt;. The problem do not only affect installation. The
374 reports state that the disk lock up during use if many writes are done
375 on the disk, so it is much no use to work around the installation
376 problem and end up with a computer that can lock up at any moment.
377 There is even a
378 &lt;a href=&quot;https://git.efficios.com/?p=test-ssd.git&quot;&gt;small C program
379 available&lt;/a&gt; that will lock up the hard drive after running a few
380 minutes by writing to a file.&lt;/p&gt;
381
382 &lt;p&gt;I&#39;ve contacted my supplier and asked how to handle this, and after
383 contacting PCHELP Norway (request 01D1FDP) which handle support
384 requests for Lenovo, his first suggestion was to upgrade the disk
385 firmware. Unfortunately there is no newer firmware available from
386 Lenovo, as my disk already have the most recent one (version LF1i). I
387 hope to hear more from him today and hope the problem can be
388 fixed. :)&lt;/p&gt;
389 </description>
390 </item>
391
392 <item>
393 <title>The Thinkpad is dead, long live the Thinkpad X230</title>
394 <link>http://www.hungry.com/~pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230.html</link>
395 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/The_Thinkpad_is_dead__long_live_the_Thinkpad_X230.html</guid>
396 <pubDate>Thu, 4 Jul 2013 09:20:00 +0200</pubDate>
397 <description>&lt;p&gt;Half a year ago, I reported that I had to find a replacement for my
398 trusty old Thinkpad X41. Unfortunately I did not have much time to
399 spend on it, but today the replacement finally arrived. I ended up
400 picking a &lt;a href=&quot;http://www.linlap.com/lenovo_thinkpad_x230&quot;&gt;Thinkpad
401 X230&lt;/a&gt; with SSD disk (NZDAJMN). I first test installed Debian Edu
402 Wheezy as a roaming workstation, and it worked flawlessly. As I write
403 this, it is installing what I hope will be a more final installation,
404 with a encrypted hard drive to ensure any dope head stealing it end up
405 with an expencive door stop.&lt;/p&gt;
406
407 &lt;p&gt;I had a hard time trying to track down a good laptop, as my most
408 important requirements (robust and with a good keyboard) are never
409 listed in the feature list. But I did get good help from the search
410 feature at &lt;ahref=&quot;http://www.prisjakt.no/&quot;&gt;Prisjakt&lt;/a&gt;, which
411 allowed me to limit the list of interesting laptops based on my other
412 requirements. A bit surprising that SSD disk are not disks, so I had
413 to drop number of disks from my search parameters.&lt;/p&gt;
414
415 &lt;p&gt;I am not quite convinced about the keyboard, as it is significantly
416 wider than my old keyboard, and I have to stretch my hand a lot more
417 to reach the edges. But the key response is fairly good and the
418 individual key shape is fairly easy to handle, so I hope I will get
419 used to it. My old X40 was starting to fail, and I really needed a
420 new laptop now. :)&lt;/p&gt;
421
422 &lt;p&gt;I look forward to figuring out how to turn off the touch pad.&lt;/p&gt;
423 </description>
424 </item>
425
426 <item>
427 <title>Fourth alpha release of Debian Edu/Skolelinux based on Debian Wheezy</title>
428 <link>http://www.hungry.com/~pere/blog/Fourth_alpha_release_of_Debian_Edu_Skolelinux_based_on_Debian_Wheezy.html</link>
429 <guid isPermaLink="true">http://www.hungry.com/~pere/blog/Fourth_alpha_release_of_Debian_Edu_Skolelinux_based_on_Debian_Wheezy.html</guid>
430 <pubDate>Wed, 3 Jul 2013 14:00:00 +0200</pubDate>
431 <description>&lt;p&gt;The fourth wheezy based alpha release of Debian Edu was wrapped up
432 today. This is the release announcement:&lt;/p&gt;
433
434 &lt;p&gt;&lt;strong&gt;New features for Debian Edu 7.1+edu0~alpha3 released
435 2013-07-03&lt;/strong&gt;&lt;/p&gt;
436
437 &lt;p&gt;These are the release notes for for Debian Edu / Skolelinux
438 7.1+edu0~alpha3, based on Debian with codename &quot;Wheezy&quot;.&lt;/p&gt;
439
440 &lt;p&gt;&lt;strong&gt;About Debian Edu and Skolelinux&lt;/strong&gt;&lt;/p&gt;
441
442 &lt;p&gt;&lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;Debian Edu, also known as
443 Skolelinux&lt;/a&gt;, is a Linux distribution based on Debian providing an
444 out-of-the box environment of a completely configured school
445 network. Immediately after installation a school server running all
446 services needed for a school network is set up just waiting for users
447 and machines being added via GOsa², a comfortable Web-UI. A netbooting
448 environment is prepared using PXE, so after initial installation of
449 the main server from CD, DVD or USB stick all other machines can be
450 installed via the network. The provided school server provides LDAP
451 database and Kerberos authentication service, centralized home
452 directories, DHCP server, web proxy and many other services. The
453 desktop contains
454 &lt;a href=&quot;https://people.skolelinux.org/pere/blog/Educational_applications_included_in_Debian_Edu___Skolelinux__the_screenshot_collection____.html&quot;&gt;more
455 than 60 educational software packages&lt;/a&gt; and more are available from
456 the Debian archive, and schools can choose between KDE, Gnome, LXDE
457 and Xfce desktop environment.&lt;/p&gt;
458
459 &lt;p&gt;This is the fourth test release based on Debian Wheezy. Basically
460 this is an updated and slightly improved version compared to the
461 Squeeze release.&lt;/p&gt;
462
463 &lt;p&gt;&lt;strong&gt;Software updates&lt;/strong&gt;&lt;/p&gt;
464 &lt;ul&gt;
465 &lt;li&gt;Dropped ispell dictionaries from our default installation.&lt;/li&gt;
466 &lt;li&gt;Dropped menu-xdg from the KDE desktop option, to drop the Debian
467 submenu. It was not included with Gnome, LXDE or Xfce, so this
468 brings KDE in line with the others.&lt;/li&gt;
469 &lt;li&gt;Dropped xdrawchem, xjig and xsok from our default installation as
470 they don&#39;t have a desktop menu entry and thus won&#39;t show up in the
471 menu now that menu-xdg was removed.&lt;/li&gt;
472 &lt;li&gt;Removed the killer system to kill left behind processes on
473 multi-user machines, as it was no longer able to understand when a
474 X display was in use and killed the processes of the active users
475 too.&lt;/li&gt;
476 &lt;li&gt;Dropped the golearn (from goplay) package as the debtags in wheezy
477 are too few to make the package useful.&lt;/li&gt;
478 &lt;/ul&gt;
479 &lt;p&gt;&lt;strong&gt;Other changes&lt;/strong&gt;&lt;/p&gt;
480 &lt;ul&gt;
481 &lt;li&gt;Updated artwork matching http://wiki.debian.org/DebianArt/Themes/Joy
482 &lt;li&gt;Multi-arch i386/amd64 USB stick ISO available.&lt;/li&gt;
483 &lt;li&gt;Got rid of ispell/wordlist related debconf questions that showed
484 up for some language options.&lt;/li&gt;
485 &lt;li&gt;Switched to using http.debian.net as APT source by default.&lt;/li&gt;
486 &lt;li&gt;Fixed proxy configuration on Main Server installations.&lt;/li&gt;
487 &lt;li&gt;Changed LTSP setup to ask dpkg to use force-unsafe-io the same way
488 d-i is doing it.&lt;/li&gt;
489 &lt;li&gt;Made sure root and user passwords were not left behind in the
490 debconf database after installation on Main Server installations.&lt;/li&gt;
491 &lt;li&gt;Made Roaming Workstation dynamic setup more robust and added draft
492 script setup-ad-client to hook a Roaming Workstation up to a
493 Active Directory server instead of a Debian Edu Main Server.&lt;/li&gt;
494 &lt;li&gt;Update system to install needed firmware packages during
495 installation, to work properly in Wheezy.&lt;/li&gt;
496 &lt;li&gt;Update system to handle hardware quirks (debian-edu-hwsetup).&lt;/li&gt;
497 &lt;li&gt;Corrected PXE installation setup to properly pass selected desktop
498 and keymap settings to PXE installation clients.&lt;/li&gt;
499 &lt;li&gt;LTSP diskless workstations use sshfs by default, allowing them to
500 work without adding them to DNS and NIS netgroups for NFS access.&lt;/li&gt;
501 &lt;/ul&gt;
502 &lt;p&gt;&lt;strong&gt;Known issues&lt;/strong&gt;&lt;/p&gt;
503 &lt;ul&gt;
504 &lt;li&gt;No mass import of user account data in GOsa (ldif or csv)
505 available yet (698840).&lt;/li&gt;
506 &lt;li&gt;Artwork not enabled for all desktops.&lt;/li&gt;
507 &lt;/ul&gt;
508 &lt;p&gt;&lt;strong&gt;Where to get it&lt;/strong&gt;&lt;/p&gt;
509
510 &lt;p&gt;To download the multiarch netinstall CD release you can use&lt;/p&gt;
511 &lt;ul&gt;
512 &lt;li&gt;&lt;a href=&quot;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso&quot;&gt;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso&lt;/a&gt;&lt;/li&gt;
513 &lt;li&gt;&lt;a href=&quot;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso&quot;&gt;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso&lt;/a&gt;&lt;/li&gt;
514 &lt;li&gt;rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-CD.iso .&lt;/li&gt;
515 &lt;/ul&gt;
516
517 &lt;p&gt;The MD5SUM of this image is: 2b161a99d2a848c376d8d04e3854e30c
518 &lt;br&gt;The SHA1SUM of this image is: 498922e9c508c0a7ee9dbe1dfe5bf830d779c3c8&lt;/p&gt;
519
520 &lt;p&gt;To download the multiarch USB stick ISO release you can use&lt;/p&gt;
521 &lt;ul&gt;
522 &lt;li&gt;&lt;a href=&quot;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso&quot;&gt;ftp://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso&lt;/a&gt;&lt;/li&gt;
523 &lt;li&gt;&lt;a href=&quot;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso&quot;&gt;http://ftp.skolelinux.org/skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso&lt;/a&gt;&lt;/li&gt;
524 &lt;li&gt;rsync -avzP ftp.skolelinux.org::skolelinux-cd/wheezy/debian-edu-7.1+edu0~a3-USB.iso .&lt;/li&gt;
525 &lt;/ul&gt;
526
527 &lt;p&gt;The MD5SUM of this image is: 25e808e403a4c15dbef1d13c37d572ac
528 &lt;br&gt;The SHA1SUM of this image is: 15ecfc93eb6b4f453b7eb0bc04b6a279262d9721&lt;/p&gt;
529
530 &lt;p&gt;&lt;strong&gt;How to report bugs&lt;/strong&gt;&lt;/p&gt;
531
532 &lt;p&gt;&lt;a href=&quot;http://wiki.debian.org/DebianEdu/HowTo/ReportBugs&quot;&gt;http://wiki.debian.org/DebianEdu/HowTo/ReportBugs&lt;/a&gt;&lt;/p&gt;
533 </description>
534 </item>
535
536 </channel>
537 </rss>