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   5   <title>Petter Reinholdtsen: Entries Tagged bootsystem</title>
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  11  <div class="title">
  12   <h1>
  13        <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  14
  15   </h1>
  16
  17  </div>
  18
  19  <p>Entries tagged "bootsystem".</p>
  20
  21
  22
  23
  24 <div class="entry">
  25  <div class="title">
  26  <a href="http://people.skolelinux.org/pere/blog/Parallellized_boot_is_now_the_default_in_Debian_unstable.html">Parallellized boot is now the default in Debian/unstable</a>
  27  </div>
  28  <div class="date">
  29   2010-05-14 22:40
  30  </div>
  31
  32  <div class="body">
  33
  34 <p>Since this evening, parallel booting is the default in
  35 Debian/unstable for machines using dependency based boot sequencing.
  36 Apparently the testing of concurrent booting has been wider than
  37 expected, if I am to believe the
  38 <a href="http://lists.debian.org/debian-devel/2010/05/msg00122.html">input
  39 on debian-devel@</a>, and I concluded a few days ago to move forward
  40 with the feature this weekend, to give us some time to detect any
  41 remaining problems before Squeeze is frozen.  If serious problems are
  42 detected, it is simple to change the default back to sequential boot.
  43 The upload of the new sysvinit package also activate a new upstream
  44 version.</p>
  45
  46 More information about
  47 <a href="http://wiki.debian.org/LSBInitScripts/DependencyBasedBoot">dependency
  48 based boot sequencing</a> is available from the Debian wiki.  It is
  49 currently possible to disable parallel booting when one run into
  50 problems caused by it, by adding this line to /etc/default/rcS:</p>
  51
  52 <blockquote><pre>
  53 CONCURRENCY=none
  54 </pre></blockquote>
  55
  56 <p>If you report any problems with dependencies in init.d scripts to
  57 the BTS, please usertag the report to get it to show up at
  58 <a href="http://bugs.debian.org/cgi-bin/pkgreport.cgi?users=initscripts-ng-devel@lists.alioth.debian.org">the
  59 list of usertagged bugs related to this</a>.</p>
  60
  61  </div>
  62  <div class="tags">
  63
  64
  65
  66   Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <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>.
  67
  68  </div>
  69 </div>
  70 <div class="padding"></div>
  71
  72 <div class="entry">
  73  <div class="title">
  74  <a href="http://people.skolelinux.org/pere/blog/Parallellized_boot_seem_to_hold_up_well_in_Debian_testing.html">Parallellized boot seem to hold up well in Debian/testing</a>
  75  </div>
  76  <div class="date">
  77   2010-05-27 23:55
  78  </div>
  79
  80  <div class="body">
  81
  82 <p>A few days ago, parallel booting was enabled in Debian/testing.
  83 The feature seem to hold up pretty well, but three fairly serious
  84 issues are known and should be solved:
  85
  86 <p><ul>
  87
  88 <li>The wicd package seen to
  89 <a href="http://bugs.debian.org/508289">break NFS mounting</a> and
  90 <a href="http://bugs.debian.org/581586">network setup</a> when
  91 parallel booting is enabled.  No idea why, but the wicd maintainer
  92 seem to be on the case.</li>
  93
  94 <li>The nvidia X driver seem to
  95 <a href="http://bugs.debian.org/583312">have a race condition</a>
  96 triggered more easily when parallel booting is in effect.  The
  97 maintainer is on the case.</li>
  98
  99 <li>The sysv-rc package fail to properly enable dependency based boot
 100 sequencing (the shutdown is broken) when old file-rc users
 101 <a href="http://bugs.debian.org/575080">try to switch back</a> to
 102 sysv-rc.  One way to solve it would be for file-rc to create
 103 /etc/init.d/.legacy-bootordering, and another is to try to make
 104 sysv-rc more robust.  Will investigate some more and probably upload a
 105 workaround in sysv-rc to help those trying to move from file-rc to
 106 sysv-rc get a working shutdown.</li>
 107
 108 </ul></p>
 109
 110 <p>All in all not many surprising issues, and all of them seem
 111 solvable before Squeeze is released.  In addition to these there are
 112 some packages with bugs in their dependencies and run level settings,
 113 which I expect will be fixed in a reasonable time span.</p>
 114
 115 <p>If you report any problems with dependencies in init.d scripts to
 116 the BTS, please usertag the report to get it to show up at
 117 <a href="http://bugs.debian.org/cgi-bin/pkgreport.cgi?users=initscripts-ng-devel@lists.alioth.debian.org">the
 118 list of usertagged bugs related to this</a>.</p>
 119
 120 <p>Update: Correct bug number to file-rc issue.</p>
 121
 122  </div>
 123  <div class="tags">
 124
 125
 126
 127   Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <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>.
 128
 129  </div>
 130 </div>
 131 <div class="padding"></div>
 132
 133 <div class="entry">
 134  <div class="title">
 135  <a href="http://people.skolelinux.org/pere/blog/KDM_fail_at_boot_with_NVidia_cards___and_no_one_try_to_fix_it_.html">KDM fail at boot with NVidia cards - and no one try to fix it?</a>
 136  </div>
 137  <div class="date">
 138   2010-06-01 17:05
 139  </div>
 140
 141  <div class="body">
 142
 143 <p>It is strange to watch how a bug in Debian causing KDM to fail to
 144 start at boot when an NVidia video card is used is handled.  The
 145 problem seem to be that the nvidia X.org driver uses a long time to
 146 initialize, and this duration is longer than kdm is configured to
 147 wait.</p>
 148
 149 <p>I came across two bugs related to this issue,
 150 <a href="http://bugs.debian.org/583312">#583312</a> initially filed
 151 against initscripts and passed on to nvidia-glx when it became obvious
 152 that the nvidia drivers were involved, and
 153 <a href="http://bugs.debian.org/524751">#524751</a> initially filed against
 154 kdm and passed on to src:nvidia-graphics-drivers for unknown reasons.</p>
 155
 156 <p>To me, it seem that no-one is interested in actually solving the
 157 problem nvidia video card owners experience and make sure the Debian
 158 distribution work out of the box for these users.  The nvidia driver
 159 maintainers expect kdm to be set up to wait longer, while kdm expect
 160 the nvidia driver maintainers to fix the driver to start faster, and
 161 while they wait for each other I guess the users end up switching to a
 162 distribution that work for them.  I have no idea what the solution is,
 163 but I am pretty sure that waiting for each other is not it.</p>
 164
 165 <p>I wonder why we end up handling bugs this way.</p>
 166
 167  </div>
 168  <div class="tags">
 169
 170
 171
 172   Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <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>.
 173
 174  </div>
 175 </div>
 176 <div class="padding"></div>
 177
 178 <div class="entry">
 179  <div class="title">
 180  <a href="http://people.skolelinux.org/pere/blog/Upstart_or_sysvinit___as_init_d_scripts_see_it.html">Upstart or sysvinit - as init.d scripts see it</a>
 181  </div>
 182  <div class="date">
 183   2010-06-06 23:55
 184  </div>
 185
 186  <div class="body">
 187
 188 <p>If Debian is to migrate to upstart on Linux, I expect some init.d
 189 scripts to migrate (some of) their operations to upstart job while
 190 keeping the init.d for hurd and kfreebsd.  The packages with such
 191 needs will need a way to get their init.d scripts to behave
 192 differently when used with sysvinit and with upstart.  Because of
 193 this, I had a look at the environment variables set when a init.d
 194 script is running under upstart, and when it is not.</p>
 195
 196 <p>With upstart, I notice these environment variables are set when a
 197 script is started from rcS.d/ (ignoring some irrelevant ones like
 198 COLUMNS):</p>
 199
 200 <blockquote><pre>
 201 DEFAULT_RUNLEVEL=2
 202 previous=N
 203 PREVLEVEL=
 204 RUNLEVEL=
 205 runlevel=S
 206 UPSTART_EVENTS=startup
 207 UPSTART_INSTANCE=
 208 UPSTART_JOB=rc-sysinit
 209 </pre></blockquote>
 210
 211 <p>With sysvinit, these environment variables are set for the same
 212 script.</p>
 213
 214 <blockquote><pre>
 215 INIT_VERSION=sysvinit-2.88
 216 previous=N
 217 PREVLEVEL=N
 218 RUNLEVEL=S
 219 runlevel=S
 220 </pre></blockquote>
 221
 222 <p>The RUNLEVEL and PREVLEVEL environment variables passed on from
 223 sysvinit are not set by upstart.  Not sure if it is intentional or not
 224 to not be compatible with sysvinit in this regard.</p>
 225
 226 <p>For scripts needing to behave differently when upstart is used,
 227 looking for the UPSTART_JOB environment variable seem to be a good
 228 choice.</p>
 229
 230  </div>
 231  <div class="tags">
 232
 233
 234
 235   Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 236
 237  </div>
 238 </div>
 239 <div class="padding"></div>
 240
 241  <p style="text-align: right;"><a href="bootsystem.rss"><img src="http://people.skolelinux.org/pere/blog/xml.gif" alt="RSS Feed" width="36" height="14"></a></p>
 242
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 245
 246 <div id="sidebar">
 247
 248 <h2>Archive</h2>
 249 <ul>
 250
 251 <li>2010
 252 <ul>
 253
 254 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 255
 256 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 257
 258 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 259
 260 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 261
 262 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 263
 264 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (7)</a></li>
 265
 266 </ul></li>
 267
 268 <li>2009
 269 <ul>
 270
 271 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 272
 273 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 274
 275 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 276
 277 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 278
 279 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 280
 281 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 282
 283 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 284
 285 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 286
 287 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 288
 289 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 290
 291 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 292
 293 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 294
 295 </ul></li>
 296
 297 <li>2008
 298 <ul>
 299
 300 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 301
 302 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 303
 304 </ul></li>
 305
 306 </ul>
 307
 308
 309
 310 <h2>Tags</h2>
 311 <ul>
 312
 313  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (11)</a></li>
 314
 315  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 316
 317  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 318
 319  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (4)</a></li>
 320
 321  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (25)</a></li>
 322
 323  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (25)</a></li>
 324
 325  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (36)</a></li>
 326
 327  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (1)</a></li>
 328
 329  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (6)</a></li>
 330
 331  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (2)</a></li>
 332
 333  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (1)</a></li>
 334
 335  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 336
 337  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (5)</a></li>
 338
 339  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (67)</a></li>
 340
 341  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (75)</a></li>
 342
 343  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (12)</a></li>
 344
 345  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (11)</a></li>
 346
 347  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (10)</a></li>
 348
 349  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 350
 351  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (8)</a></li>
 352
 353  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (3)</a></li>
 354
 355  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (12)</a></li>
 356
 357  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (1)</a></li>
 358
 359  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (10)</a></li>
 360
 361  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (1)</a></li>
 362
 363  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (6)</a></li>
 364
 365 </ul>
 366
 367 </div>
 368 </body>
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